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Optimization Of Semiconductor Refrigeration Cold Stage Usage Conditions And Its Application In High Moisture Content Samples In Scanning Electron Mmicroscopy, Chen Xiyan, Wei Lanlan, Kang Jingquan, Duan Hui, Fan Ningjuan Jan 2024

Optimization Of Semiconductor Refrigeration Cold Stage Usage Conditions And Its Application In High Moisture Content Samples In Scanning Electron Mmicroscopy, Chen Xiyan, Wei Lanlan, Kang Jingquan, Duan Hui, Fan Ningjuan

Food and Machinery

Objective: To effectively solve the difficulty of observing the electron microstructure of samples with high water content. Methods: A series of samples with high water content were observed by conventional scanning electron microscope with a new mode instrument combination of semiconductor cold cooling table. Results: Under the conditions of conductive tape as matrix, voltage 5 kV, electron beam spot of 50 or 60, and cold table temperature of 4 ℃, the sample with high water content did not need to be fixed and dehydrated, and its microstructure could be directly imaged under the scanning electron microscope to observe its microstructure. …

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Comparative Leaf Water Absorption Between Chaparral Island And Mainland Taxa: A Common Garden Experiment, Humera S. Mirza, Lauren M. Tucker, Rodrigo Méndez-Alonzo, Edward G. Bobich, Frank W. Ewers Jan 2023

Comparative Leaf Water Absorption Between Chaparral Island And Mainland Taxa: A Common Garden Experiment, Humera S. Mirza, Lauren M. Tucker, Rodrigo Méndez-Alonzo, Edward G. Bobich, Frank W. Ewers

Aliso: A Journal of Systematic and Floristic Botany

In California and other Mediterranean-type ecosystems, island species are typically exposed to more fog but less rain than mainland species. Because adaptations to absorb water from fog may conflict with those to minimize water loss, we hypothesized that island species should have greater fog absorption than their mainland congeners due to foliar uptake but at the cost of modifying other leaf structural and functional traits. To determine whether foliar water absorption is an adaptation to insularity, we compared seven physiological and anatomical leaf traits between congeneric island and mainland species of two genera, Ceanothus and Arctostaphylos, in a common …

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Seed Morphology Of Some Plantago (Plantaginaceae) Species In Iran And Its Systematic And Phylogenetic Implications, Saeed Mohsenzadeh, Masoud Sheidai, Fahimeh Koohdar Jan 2023

Seed Morphology Of Some Plantago (Plantaginaceae) Species In Iran And Its Systematic And Phylogenetic Implications, Saeed Mohsenzadeh, Masoud Sheidai, Fahimeh Koohdar

Turkish Journal of Botany

Plantago is a cosmopolitan genus with approximately 200 species and various infrageneric classifications have been reported. In this study, the seed morphologies of 19 species of Plantago from Iran were studied and documented in detail using scanning electron microscopy and light microscopy. The studied species were grouped by using statistical analyses such as a minimum spherical cluster method based on Euclidean distance, principal coordinate analysis, and multidimentional scaling. We have described four types based on the seed shape and states of the inner side of the studied seeds: convex- angular type, convex-elliptic type, flat-elliptic type, and concave-elliptic type. In this …

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Key To Isotomidae (Collembola) Of Iran And A Photographic Guide Of Key Characters Of Species, Elham Yoosefi Lafooraki, Jalil Hajizadeh, Masoumeh Shayanmehr, Reza Hosseini, Pietro Paolo Fanciulli Jan 2023

Key To Isotomidae (Collembola) Of Iran And A Photographic Guide Of Key Characters Of Species, Elham Yoosefi Lafooraki, Jalil Hajizadeh, Masoumeh Shayanmehr, Reza Hosseini, Pietro Paolo Fanciulli

Turkish Journal of Zoology

Present work deals with providing an identification key to 60 Iranian species of the family Isotomidae. The photographic support provided here, both light micrographs and scanning electron microscopy (SEM) pictures, can be used as a practical tool for researchers who are not well acquainted with the morphology of Isotomidae.

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Arterial Vascularization Of The Spleen In Merino Sheep, Melek Tosun, Şükrü Hakan Atalgin Jan 2023

Arterial Vascularization Of The Spleen In Merino Sheep, Melek Tosun, Şükrü Hakan Atalgin

Turkish Journal of Veterinary & Animal Sciences

In this study, it is aimed to reach detailed information about the anatomy of arteries in the sheep spleen, which can be used as an example and model for the success of planned or emergency surgical interventions related to the spleen. In spleen injuries, the spleen may be divided into two or three parts, or it may be limited to cracks on the spleen. In particular, it is aimed to protect the organs that have been damaged by trauma recently. Operations such as splenectomy and splenography are surgical procedures that require good knowledge of the pathways of artery and its …

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A New Study Of Dynamic Mechanical Analysis And The Microstructure Of Polyurethanefoams Filled, Noureddine Boumdouha, Zitouni Safidine, Achraf Boudiaf Jan 2022

A New Study Of Dynamic Mechanical Analysis And The Microstructure Of Polyurethanefoams Filled, Noureddine Boumdouha, Zitouni Safidine, Achraf Boudiaf

Turkish Journal of Chemistry

Polyurethane foams have good shock-absorbing properties. This article discusses the study of the physical, dynamic analysis, and microstructure of filled polyurethane foams (PUR). We used mineral fillings nanoparticles of titanium dioxide (TiO2) and calcium carbonate (C1) to support and strengthen the foam cell structure to develop shock absorption and thermal resistance properties. Dynamic mechanical analysis (DMA) and compression tests compared the mechanic characterization results with different modelling approaches. For studies of physicochemical properties, we used differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). We deduced the flame retardancy mechanism. It appears that a detailed description of the characteristics of viscosity …

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Achene Micromorphology Of The Genus Potentilla L. (Rosaceae) In Iran And Its Systematicapplication, Samira Sadeghi, Marzieh Beygom Faghir, Farideh Attar, Ali Alaami Jan 2021

Achene Micromorphology Of The Genus Potentilla L. (Rosaceae) In Iran And Its Systematicapplication, Samira Sadeghi, Marzieh Beygom Faghir, Farideh Attar, Ali Alaami

Turkish Journal of Botany

Achene micromorphological evidence belonging to 32 species of Potentilla from Iran were studied using scanning electron microscopy (SEM). Multivariate analysis was used to estimate the potential contribution of the quantitative and qualitative traits to the species relationships. Based on the present results, the achene micromorphological traits exhibited considerable variations. The SEM observations revealed 4 types of achene shapes, 4 main types and 6 sub types of surface patterns, 3 types of wax, 8 types, 15 subtypes, and 4 categories of sculpturing, 2 types of anticlinal cell boundaries, and 3 types of outer periclinal walls. In addition, the results demonstrated variations …

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Assessment Of Erythrocyte Morphology In Patients With Type 2 Diabetes Mellitus: A Pilotstudy Of Electron Microscopy-Based Analysis In Relation To Healthy Controls, Tülay Mortaş, Şenay Arikan Durmaz, Şaban Cem Sezen, Yasemi̇n Savranlar Jan 2021

Assessment Of Erythrocyte Morphology In Patients With Type 2 Diabetes Mellitus: A Pilotstudy Of Electron Microscopy-Based Analysis In Relation To Healthy Controls, Tülay Mortaş, Şenay Arikan Durmaz, Şaban Cem Sezen, Yasemi̇n Savranlar

Turkish Journal of Medical Sciences

Background/aim: The present study aimed to assess erythrocyte morphology in newly diagnosed type 2 diabetes mellitus patients using scanning electron microscopy. Materials and methods: In total, 30 patients admitted to endocrine outpatient clinics were included in the study. The patients were divided into two groups according to their fasting blood glucose levels: type 2 diabetes mellitus (n = 15, fasting blood glucose levels ≥ 126 mg/dL) and control (n = 15, fasting blood glucose levels < 99 mg/dL). The patient's demographic characteristics, haemoglobin A1c levels, and scanning electron microscopy findings regarding erythrocyte morphology were recorded. Results: There was no significant difference between the control and type 2 diabetes mellitus group in terms of the participants' age (51.13 ± 8.53 vs. 50.33 ± 8.72 years, p = 0.8) and the male/female ratio (9/6 vs. 9/6). In the control group, discocytes were abundant, echinocytes were rare, and spherocytes were absent. On the other hand, discocytes were less common and echinocyte-shaped erythrocytes were more common in the type 2 diabetes mellitus group than in the control group. In addition, spherocytes were detected in the type 2 diabetes mellitus group. Moreover, the diameter of discocytes was significantly lower (p = 0.014), and blood glucose and haemoglobin A1c levels were significantly higher (p < 0.05 for both) in the type 2 diabetes mellitus group than in the control group. Conclusion: Our findings indicate that high glucose levels in type 2 diabetes mellitus patients lead to significant alterations in erythrocyte morphology, including decreased erythrocyte deformability and the formation of echinocytes and spherocytes due to eryptosis. The possibility of decreased erythrocyte deformability due to excessive eryptosis may disturb microcirculation in newly diagnosed, treatment-naïve type 2 diabetes mellitus patients who do not have any complications.

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Morphological Study Of The Lingual Papillae Of Jentink’S Flying Squirrel(Hylopetes Platyurus), Hevi Wihadmadyatami, Golda Rani Saragih, Geraldus Gunawan, Made Bagus Auriva Mataram, Ulayatul Kustiati, Dwi Liliek Kusindarta Jun 2020

Morphological Study Of The Lingual Papillae Of Jentink’S Flying Squirrel(Hylopetes Platyurus), Hevi Wihadmadyatami, Golda Rani Saragih, Geraldus Gunawan, Made Bagus Auriva Mataram, Ulayatul Kustiati, Dwi Liliek Kusindarta

The Thai Journal of Veterinary Medicine

This study describes the anatomy and histology of the tongue in the Jentink’s flying squirrel (Hylopetesplatyurus), a rodent native to Indonesia (Borneo and Sumatra). We examined the characteristics of the tongue using scanning electron microscopy (SEM) and light microscopy (LM). Macroscopic observations revealed three distinct regions: the apex, corpus (body) and radix (root). The dorsal surface of the apex was characterized by a median groove and lacked the lingual prominence that is common in many rodents. SEM and LM revealed the distribution of papillae over the dorsal surface of the tongue. The papillae could be categorized as mechanical papillae (filiform, …

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Preparation Of Selenium Nanoparticles Based On Fish Gelatin Dispersion System And Investigation Of Their Anti-Oxidant Activities, Du Peng-Cheng, Wang Hui, Hu Yue-Ming, Tu Zong-Cai Apr 2020

Preparation Of Selenium Nanoparticles Based On Fish Gelatin Dispersion System And Investigation Of Their Anti-Oxidant Activities, Du Peng-Cheng, Wang Hui, Hu Yue-Ming, Tu Zong-Cai

Food and Machinery

Selenium nano particles (SeNPs) were prepared using fish gelatin dispersion system, and its particle size, morphology, and digestive stability were studied by dynamic light scattering (DLS) and scanning electron microscopy (SEM). The antioxidant capacity of SeNPs were determined. The results showed that fish gelatin was excellent dispersion system for preparation of SeNPs. The particle size of SeNPs and its morphology was barely affected by the concentration of fish gelatin dispersion system. Moreover, SeNPs presented good antioxidant ability. Among them, the DPPH radical scavenging ability of SeNPs prepared by 1.000%, 0.500%, 0.125% fish gelatin dispersion system, and IC50 value were 1.846 …

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Insecticidal Effect Of Diatomaceous Earth And Dolomite Powder Against Corn Weevilsitophilus Zeamais Motschulsky, 1855 (Coleoptera: Curculionidae), Alyssa Cristina Oliveira Freitas, Adriana Aparecida Sinopólis Gigliolli, Ronaldo Roberto Tait Caleffe Caleffe, Helio Conte Jan 2020

Insecticidal Effect Of Diatomaceous Earth And Dolomite Powder Against Corn Weevilsitophilus Zeamais Motschulsky, 1855 (Coleoptera: Curculionidae), Alyssa Cristina Oliveira Freitas, Adriana Aparecida Sinopólis Gigliolli, Ronaldo Roberto Tait Caleffe Caleffe, Helio Conte

Turkish Journal of Zoology

Sitophilus zeamais Motschulsky, 1855 (Coleoptera: Curculionidae) which develops inside the grain, is an aggressive pest of stored grains. Here, we evaluated the efficiency of diatomaceous earth (DE), Diatomita CI/325 CX, and dolomite (DOL), Dolomita Dr. Kanyo, against S. zeamais reared on corn under laboratory conditions and observed external alterations on treated insects using scanning electron microscopy (SEM). Insects treated with both DE and DOL were impregnated with particles on the body surface, and they showed 100% mortality after 10 days of exposure. Damages caused by inert dusts may have contributed to dehydration and desiccation, consequently, leading insects to death. Thus, …

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Highly Improved Electrocatalytic Oxidation Of Dimethylamine Borane On Silvernanoparticles Modified Polymer Composite Electrode, Çağri Ceylan Koçak, Süleyman Koçak, Şükri̇ye Karabi̇beroğlu, Zekerya Dursun Jan 2020

Highly Improved Electrocatalytic Oxidation Of Dimethylamine Borane On Silvernanoparticles Modified Polymer Composite Electrode, Çağri Ceylan Koçak, Süleyman Koçak, Şükri̇ye Karabi̇beroğlu, Zekerya Dursun

Turkish Journal of Chemistry

Dimethylamine borane (DMAB) is a promising fuel alternative for fuel cell applications. In this work cyclic voltammetric behavior of DMAB was investigated on the polymerized aminophenol film decorated with Ag nanoparticles in alkaline media. The polymer film was formed on the glassy carbon electrode by electrochemical technique and then, the surface was modified with Ag nanoparticles. The surface of the modified electrode was identified by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy techniques. The developed electrode has displayed high electrocatalytic activity for DMAB oxidation in alkaline media depending on the supporting electrolyte concentration. Experimental …

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Light And Scanning Electron Microscopic Examination Of The Saanen Goat Heart, Sedef Selvi̇ler Si̇zer, Yonca Beti̇l Kabak, Murat Kabak Jan 2020

Light And Scanning Electron Microscopic Examination Of The Saanen Goat Heart, Sedef Selvi̇ler Si̇zer, Yonca Beti̇l Kabak, Murat Kabak

Turkish Journal of Veterinary & Animal Sciences

It is important to know the morphological structure of the heart, which is a vital organ of the body, in detail. For this reason, we aimed to examine the morphological structure of the Saanen goat heart using light and scanning electron microscopy (SEM). A total of thirteen Saanen goat hearts were used in the study. To demonstrate the histological structure of the heart, samples taken from 9 hearts were fixed in 10% formaldehyde solution and blocked in paraffin after routine histological procedures. Histological staining was performed on the sections taken from the blocks. Four hearts were fixed in a 2.5% …

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Fruit And Seed Macro- And Micromorphologies Of The Genus Matthiola (Brassicaceae) In Turkey And Their Taxonomic Value, Ayla Kaya, Murat Ünal, Abdurrahman Sefali, Esra Marti̇n Jan 2019

Fruit And Seed Macro- And Micromorphologies Of The Genus Matthiola (Brassicaceae) In Turkey And Their Taxonomic Value, Ayla Kaya, Murat Ünal, Abdurrahman Sefali, Esra Marti̇n

Turkish Journal of Botany

Macro- and micromorphological features of fruit and seeds belonging to 12 taxa genera of Matthiola W.T.Aiton were studied via stereomicroscope and scanning electron microscope. In macromorphological studies, the following variables were investigated: the shape, size, and color of fruit and seeds; the length of fruiting pedicel; the structure of the median vein; stigma (horns); and trichome properties and density in fruit. In micromorphological studies, the presence or absence of seed wings, seed coat pattern in disc and wing, and epidermal cell shape in disc and wing were determined. According to our findings, all characters of fruit and seeds are extremely …

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Nutlet Structures Of Subsection Fragiles Of The Genus Stachys (Lamiaceae) From Turkey And Their Systematic Applications, Mehmet Cengi̇z Karai̇smai̇loğlu, Özal Güner Jan 2019

Nutlet Structures Of Subsection Fragiles Of The Genus Stachys (Lamiaceae) From Turkey And Their Systematic Applications, Mehmet Cengi̇z Karai̇smai̇loğlu, Özal Güner

Turkish Journal of Botany

This paper includes the morphological and anatomical characters of the nutlets of 7 endemic species of the subsection Fragiles of the genus Stachys (Lamiaceae) from Turkey and the systematic significance of these characteristics, using one-way analysis of variance and cluster and principal component analyses. Morphological characters such as the dimensions, shapes, colors, and surfaces of the nutlets were studied using light and scanning electron microscopes. The structures and thicknesses of the pericarp and endosperm layers, as well as the sizes of the cotyledon in the nutlets, were anatomically studied. The outcomes revealed that the taxa varyfrom each other in terms …

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Structural And Permeability Characterization Of Zn-Li Ferrites, M H Mesbah Ahmed, A. K. M. Akther Hossain, Shamima Choudhury Jan 2018

Structural And Permeability Characterization Of Zn-Li Ferrites, M H Mesbah Ahmed, A. K. M. Akther Hossain, Shamima Choudhury

Turkish Journal of Physics

Structural characterization and magnetic properties of Zn-substituted Li ferrites with composition \linebreak Zn$_{x}$Li$_{0.45-x/2}$Fe$_{2.55-x/2}$O$_{4}$ (where x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5) were studied by varying sintering temperature T$_{S}$ (where T$_{S}$ = 1000, 1050, 1100, 1150, 1200, and 1250 $^{\circ}$C) of the six samples. The single-phase cubic spinel structure was found by XRD patterns and scanning electron microscopy revealed the microstructure of all the samples. Permeability (real, $\mu_{i}'$ and imaginary, $\mu _{i}'')$ was found to increase with Zn substitution and also with sintering temperature. The real part of initial permeability ($\mu_{i}')$ was found to depend on the density and …

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Seed Structure And Its Taxonomic Implications For Genus Thlaspi Sensu Lato Sectionsnomisma, Thlaspi, And Pterotropis (Brassicaceae), Mehmet Cengi̇z Karai̇smai̇loğlu, Osman Erol Jan 2018

Seed Structure And Its Taxonomic Implications For Genus Thlaspi Sensu Lato Sectionsnomisma, Thlaspi, And Pterotropis (Brassicaceae), Mehmet Cengi̇z Karai̇smai̇loğlu, Osman Erol

Turkish Journal of Botany

We studied morphological and anatomical characteristics of seeds of 22 taxa in the sections Nomisma, Thlaspi, and Pterotropis of Thlaspi sensu lato from Turkey and the significance of these characters in a taxonomical context. The results show that the taxa differ from each other in terms of seed shape and color. The seed size ranges from 1.25 mm to 2.99 mm in length and from 0.66 mm to 2.16 mm in width, Thlaspi rosulare and T. tatianae having the largest and T. annuum having the smallest seeds. The seed surface ornamentation is classified into nine types: reticulate-areolate, scalariform, reticulate, reticulate-foveate, …

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Seed Structure Of Some Taxa Of The Genus Crocus L. (Iridaceae) Series Crocus, Mehmet Cengi̇z Karai̇smai̇loğlu, Levent Şik, Almila Gemi̇ci̇oğlu, Osman Erol Jan 2018

Seed Structure Of Some Taxa Of The Genus Crocus L. (Iridaceae) Series Crocus, Mehmet Cengi̇z Karai̇smai̇loğlu, Levent Şik, Almila Gemi̇ci̇oğlu, Osman Erol

Turkish Journal of Botany

In this study, the macro- and micromorphological seed characteristics of the genus Crocus L. series Crocus taxa, including C. pallasii , C. turcicus , C. dispathaceus , C. asumaniae , C. mathewii , C. thomasii , C. oreocreticus , and C. cartwrightianus , were observed. Morphological characteristics, such as the size, shape, color, and seed surface structures, were analyzed using stereo and scanning electron microscopes. Testa layer structures including the outer and inner testae, phytomelan layer structure and thickness, and seed endosperm cell features were studied. Differences in the seed, raphe size, seed surface patterns, inner testa features, and phytomelan …

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Micromorphological Studies On The Genus Lotus L. (Fabaceae: Loteae) From Egypt, Momen Zareh, Ahmed Faried, Nashwa Farghaly Jan 2017

Micromorphological Studies On The Genus Lotus L. (Fabaceae: Loteae) From Egypt, Momen Zareh, Ahmed Faried, Nashwa Farghaly

Turkish Journal of Botany

Trichomes, epidermal cell features, and seed coat sculpturing of 12 Lotus taxa from Egypt were studied using scanning electron microscopy. In addition, statistical analysis for the taxa under investigation was carried out. The results revealed that trichomes have high taxonomic significances between studied taxa. Anticlinal and periclinal cell walls and epidermal cell shape for the stem, leaf, and calyx for each taxon were examined. Seed coat sculpturing exhibited 4 main different surface patterns categories: rugose, reticulate, sulcate, and verrucate. These features can serve as good diagnostic characters at the species level of the genus Lotus.

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Regulation Of Functional Activities And Essential Oil Production In Vetiveria Zizanioides L. Nash After γ-Irradiated Sodium Alginate Elicitation, Asfia Shabbir, Mohammad Masroor Akhtar Khan, Yawar Sadiq, Hassan Jaleel, Bilal Ahmad, Moin Uddin Jan 2017

Regulation Of Functional Activities And Essential Oil Production In Vetiveria Zizanioides L. Nash After γ-Irradiated Sodium Alginate Elicitation, Asfia Shabbir, Mohammad Masroor Akhtar Khan, Yawar Sadiq, Hassan Jaleel, Bilal Ahmad, Moin Uddin

Turkish Journal of Biology

Upon irradiation, marine polysaccharides undergo depolymerization, leading to formation of oligosaccharides that elicit various biological activities in plants. Taking a step further on the previously established growth-promoting activity of irradiated sodium alginate (ISA), structural rearrangements in ISA were analyzed using complementary techniques to develop an understanding of the structure-property relationship. The essential oil (EO) of vetiver (Vetiveria zizanioides L. Nash) immensely benefits the perfumery industry, proving itself as an economically important crop. A pot experiment was designed to test the effect of water-soluble ISA fractions on the growth, physiology, and EO production of vetiver. The structural characterization of radiation-induced sodium …

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The Micrograph Image Of Early Experimental Dental Caries In Permanent Teeth, Vo Truong Nhu Ngoc, Truong Manh Dung, Le Quynh Anh, Pham Thi Hong Thuy, Tran Tuan Anh Apr 2016

The Micrograph Image Of Early Experimental Dental Caries In Permanent Teeth, Vo Truong Nhu Ngoc, Truong Manh Dung, Le Quynh Anh, Pham Thi Hong Thuy, Tran Tuan Anh

Journal of Dentistry Indonesia

Study on the structure and the mechanism of the formation of early caries is an important premise for evaluating the caries-preventive methods. Objective: To describe micrograph images of experimental carious lesions at early stage in permanent teeth in Vietnamese. Methods: There were 60 permanent extracted premolars from patients aged 18-25 used in this study. After cleaning and removing the remaining soft tissue, each tooth was painted with acid-resistant coating leaving an enamel window of approximately 1 × 1mm2 on the buccal surface. The artificial carious lesion was performed by soaking the teeth for 96 hours in the demineralization solution and …

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Vietnamese Ganoderma: Growth, Peculiarities, And Low-Molecular Composition Compared To European And Siberian Strains, Olga Tsivileva, Thao Nguyen, Long Vu, Nikolai Yurasov, Marina Chernyshova, Alexander Petrov, Viktor Galushka, Alexei Markin, Oleg Koftin Jan 2016

Vietnamese Ganoderma: Growth, Peculiarities, And Low-Molecular Composition Compared To European And Siberian Strains, Olga Tsivileva, Thao Nguyen, Long Vu, Nikolai Yurasov, Marina Chernyshova, Alexander Petrov, Viktor Galushka, Alexei Markin, Oleg Koftin

Turkish Journal of Botany

The species from the genus Ganoderma are known to be extremely important macrofungi in fundamental biological, medicinal, and socioeconomic aspects. The present communication describes the brief morphological description, macro- and microscopic details, and chemical constituents of the representatives of five species of Ganoderma mushroom collected from different sites in Vietnamese National Parks. These species were Ganoderma colossus, G. Neojaponicum, G. Cattienensis, G. Lucidum, and G. Applanatum. Three additional herbarium strains of Ganoderma from European and Siberian regions have been implemented in the present framework for the purposes of comparison. Cultural characterization on solid and liquid fermentation, and scanning electron microscopy …

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Needle Characteristics Of Lebanon Cedar (Cedrus Libani A.Rich.): Degradation Of Epicuticular Waxes And Decrease Of Photosynthetic Rates With Increasing Needle Age, Ayli̇n Güney, Reiner Zimmermann, Anna Krupp, Klaus Haas Jan 2016

Needle Characteristics Of Lebanon Cedar (Cedrus Libani A.Rich.): Degradation Of Epicuticular Waxes And Decrease Of Photosynthetic Rates With Increasing Needle Age, Ayli̇n Güney, Reiner Zimmermann, Anna Krupp, Klaus Haas

Turkish Journal of Agriculture and Forestry

The evergreen conifer Cedrus libani A.Rich. İs frost- and drought-tolerant and of economic and ecological importance. It has valuable timber and thus has promising potential for cultivation within and outside its natural distribution. Our aim was to determine the morphological and physiological characteristics of C. Libani needle leaves with respect to epicuticular waxes, photosynthetic assimilation rates, and needle age. The study was conducted in the Cedar Research Forest near Elmalı, Antalya (SW Turkey) at 1650 m a.s.l. An equation to calculate needle surface area from needle length was created (R2 = 0.96) for adult cedar needles. The form factor for …

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Seed Morphology Of Some Silene L. (Caryophyllaceae) Species Collected From Turkey, Mehmet Yaşar Dadandi, Kemal Yildiz Jan 2015

Seed Morphology Of Some Silene L. (Caryophyllaceae) Species Collected From Turkey, Mehmet Yaşar Dadandi, Kemal Yildiz

Turkish Journal of Botany

The seed micro- and macromorphology of 39 Silene taxa were studied by stereomicroscope and scanning electron microscope. Quantitative (9) and qualitative (11) values of seed characters vary greatly both within and between taxa. The tree topology of UPGMA based on quantitative values does not supported the traditional relationship. Therefore, we concluded that seed characters of Silene alone cannot be used to describe taxa without detecting the full range of intra- and intertaxon variation of those characters.

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Micromorphological Characters On Nutlet And Leaf Indumentum Of Teucrium Sect. Teucrium (Lamiaceae) In Turkey, Gülay Ecevi̇t Genç, Taner Özcan, Tuncay Di̇rmenci̇ Jan 2015

Micromorphological Characters On Nutlet And Leaf Indumentum Of Teucrium Sect. Teucrium (Lamiaceae) In Turkey, Gülay Ecevi̇t Genç, Taner Özcan, Tuncay Di̇rmenci̇

Turkish Journal of Botany

Leaf indumentum and nutlet surface micromorphology of 13 taxa belonging to the Teucrium sect. Teucrium was studied with a scanning electron microscope. We observed 5 trichome types on the nutlets and 8 trichome types on the leaves. Branched trichomes were not found on the nutlets. Nutlet shapes of the taxa were elliptic, obovate, oblong, or rotund, and their surfaces were generally alveolate with different ornamentations. Some nutlets had longitudinal ridges. The indumentum varied among unrelated species and showed some significant similarities within related species. In Flora of Turkey sect. Teucrium was divided into 2 groups according to leaf fragmentation and …

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Hairy Stalagmites, A New Biogenic Root Speleothem From Botswana, Gerhard C. Du Preez, Paolo Forti, Gerhard Jacobs, Anine Jordaan, Louwrens Tiedt Nov 2014

Hairy Stalagmites, A New Biogenic Root Speleothem From Botswana, Gerhard C. Du Preez, Paolo Forti, Gerhard Jacobs, Anine Jordaan, Louwrens Tiedt

International Journal of Speleology

Ngamiland in northwestern Botswana hosts the Gcwihaba Caves which present unique subterranean environments and host speleothems never before recorded. Cave atmospheric conditions can be extreme with temperatures as high as 28°C and relative humidity nearing 99.9%. Within Dimapo and Diviner’s Caves peculiar root speleothems that we named ‘Hairy Stalagmites’ were found. These stalagmites are closely associated with the roots of Namaqua fig (Ficus cordata) trees that enter the cave environment in search of water. Pieces of broken stalagmites were sampled from Dimapo Cave for further investigations. Stereo and electron microscopy revealed that the Hairy Stalagmites consist of multiple …

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Morphological Examination Of The Resting Egg Structure Of 3 Cladoceran Species [Ceriodaphnia Quadrangula (O. F. Müller, 1785), Daphnia Longispina (O. F. Müller, 1776), And D. Magna Straus, 1820], Murat Kaya, Sevi̇l Erdoğan Jan 2014

Morphological Examination Of The Resting Egg Structure Of 3 Cladoceran Species [Ceriodaphnia Quadrangula (O. F. Müller, 1785), Daphnia Longispina (O. F. Müller, 1776), And D. Magna Straus, 1820], Murat Kaya, Sevi̇l Erdoğan

Turkish Journal of Zoology

Morphological characteristics of the resting egg, which is important to ensure the continuity of generations, were examined to understand if there were morphologically significant differences among 3 cladoceran species. Resting eggs floating on the water surface were collected by a plankton net with a mesh size of 100 \mum from Mamasın Dam Lake in November 2012 and were left to dry at room temperature in the laboratory. In this study, the size, shape, and color of the ephippium and the size of the egg/eggs enclosed in the ephippium were comparatively analyzed by stereomicroscope and scanning electron microscope. It was observed …

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Sem Analysis Of The Epibenthic Diatoms On Eudendrium Racemosum (Hydrozoa) From The Mediterranean Sea, Tiziana Romagnoli, Cecilia Totti, Stefano Accoroni, Mario De Stefano, Chiara Pennesi Jan 2014

Sem Analysis Of The Epibenthic Diatoms On Eudendrium Racemosum (Hydrozoa) From The Mediterranean Sea, Tiziana Romagnoli, Cecilia Totti, Stefano Accoroni, Mario De Stefano, Chiara Pennesi

Turkish Journal of Botany

In this work, the valve fine structure, morphology, and dimensions of the epibenthic diatoms living on the marine hydroid Eudendrium racemosum Cavolini were investigated through SEM analysis. Hydroid samples were collected from the Ligurian Sea (Mediterranean Sea), from October 2002 to October 2003, with monthly frequency, allowing definition of the annual cycle of diatom communities. Following several taxonomic/systematic papers, this floristics paper documents 32 new records of diatoms (13 araphid, 17 biraphid, 2 monoraphid), which have been classified into different growth forms (adnate, erect, motile, tube-dwelling). Moreover, new information on morphologic data and biodiversity in the Mediterranean Sea are offered, …

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The Gill Morphology Of The Date Mussel Lithophaga Lithophaga (Bivalvia: Mytilidae), Deni̇z Akşi̇t, Beri̇a Falakali Mutaf Jan 2014

The Gill Morphology Of The Date Mussel Lithophaga Lithophaga (Bivalvia: Mytilidae), Deni̇z Akşi̇t, Beri̇a Falakali Mutaf

Turkish Journal of Zoology

The purpose of the present research was to study the descriptive anatomy of the gill of the mussel Lithophaga lithophaga. Mussels were collected from 2 sites in Antalya Bay, Turkey. Observations using stereomicroscopy and electron microscopy showed that the gills of L. lithophaga consist of homorhabdic filaments, a characteristic of the mytilids. The lamellae have cavities at their laterals in addition to their prominent ciliary structure on the frontal and lateral surfaces. The latero-frontal cilia extend in pairs, one attached to the other with a membrane and showing a composite structure. The ascending and descending lamellae are fused by fan-like …

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The Tubificids (Annelida, Oligochaeta) Of Lake Trasimeno And Lake Piediluco In Central Italy, With A Study Of Sem Morphology Of Some Species, Enzo Goretti, Caterina Marcucci, Alessandra Di Veroli, Angelisa Fabrizi, Elda Gaino Jan 2014

The Tubificids (Annelida, Oligochaeta) Of Lake Trasimeno And Lake Piediluco In Central Italy, With A Study Of Sem Morphology Of Some Species, Enzo Goretti, Caterina Marcucci, Alessandra Di Veroli, Angelisa Fabrizi, Elda Gaino

Turkish Journal of Zoology

Freshwater oligochaetes are studied worldwide because of their relevance as bioindicators in aquatic ecosystems. Nevertheless, species identification is still difficult because it is mainly based on the male reproductive system. The morphology of the chaetae offers an additional set of characters and the fine organization of these elements can help in solving crucial aspects allowing specific attribution. In spite of this, somatic chaetae are poorly investigated under scanning electron microscopy (SEM). A SEM analysis of the chaetae has been carried out on the tubificids Branchiura sowerbyi, Limnodrilus hoffmeisteri, Tubifex tubifex, and Psammoryctides barbatus from Trasimeno and Piediluco lakes (Central Italy). …

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