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Articles 1711 - 1740 of 10753

Full-Text Articles in Botany

Application Of Short Tandem Target Mimic (Sttm) Technique For Functional Analysis Of Micro-Rna396 In Transgenic Poplar Trees, Surattana Boonsai Jan 2019

Application Of Short Tandem Target Mimic (Sttm) Technique For Functional Analysis Of Micro-Rna396 In Transgenic Poplar Trees, Surattana Boonsai

Dissertations, Master's Theses and Master's Reports

Short Tandem Target Mimic (STTM) is a commonly technique used for functional studies of a number of genes in several plant model systems. However, very little is known about application of STTM technique in tree species. In this study, STTM was applied to knock down microRNA396 (miR396) in transgenic poplar trees for the first time. STTM396 expression resulted in dramatic decrease in miR396 expression levels leading to taller plants with larger leaves and larger leaf cell size. Additionally, an expression analysis of growth regulating factor genes (GRFs) that are members of miR396 target gene family showed up-regulation of GRF07 gene …

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The Genome Of Broomcorn Millet, Changsong Zou, Leiting Li, Daisuke Miki, Delin Li, Qiming Tang, Lihong Xiao, Santosh Rajput, Ping Deng, Li Peng, Wei Jia, Ru Huang, Meiling Zhang, Yidan Sun, Jiamin Hu, Xing Fu, Patrick S. Schnable, Yuxiao Chang, Feng Li, Hui Zhang, Baili Feng, Xinguang Zhu, Renyi Liu, James C. Schnable, Jian-Kang Zhu, Heng Zhang Jan 2019

The Genome Of Broomcorn Millet, Changsong Zou, Leiting Li, Daisuke Miki, Delin Li, Qiming Tang, Lihong Xiao, Santosh Rajput, Ping Deng, Li Peng, Wei Jia, Ru Huang, Meiling Zhang, Yidan Sun, Jiamin Hu, Xing Fu, Patrick S. Schnable, Yuxiao Chang, Feng Li, Hui Zhang, Baili Feng, Xinguang Zhu, Renyi Liu, James C. Schnable, Jian-Kang Zhu, Heng Zhang

Department of Agronomy and Horticulture: Faculty Publications

Broomcorn millet (Panicum miliaceum L.) is the most water-efficient cereal and one of the earliest domesticated plants. Here we report its high-quality, chromosome-scale genome assembly using a combination of short-read sequencing, single-molecule real-time sequencing, Hi-C, and a high-density genetic map. Phylogenetic analyses reveal two sets of homologous chromosomes that may have merged ~5.6 million years ago, both of which exhibit strong synteny with other grass species. Broomcorn millet contains 55,930 proteincoding genes and 339 microRNA genes. We find Paniceae-specific expansion in several subfamilies of the BTB (broad complex/tramtrack/bric-a-brac) subunit of ubiquitin E3 ligases, suggesting enhanced regulation of protein dynamics …

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Applicability Of The Dual Isotopes Δ15n And Δ18o To Identify Nitrate In Groundwater Beneath Irrigated Cropland, R. F. Spalding, A. J. Hirsh, M. E. Exner, N. A. Little, K. L. Kloppenborg Jan 2019

Applicability Of The Dual Isotopes Δ15n And Δ18o To Identify Nitrate In Groundwater Beneath Irrigated Cropland, R. F. Spalding, A. J. Hirsh, M. E. Exner, N. A. Little, K. L. Kloppenborg

Department of Agronomy and Horticulture: Faculty Publications

Identification of the nitrate sources that adversely impact groundwater quality is a necessary first step in the control of this major worldwide pollutant. The impact of nitrate leachate from urea-ammonium nitrate (UAN) (50% urea-N, 25% ammonium-N, 25% nitrate-N) fertilizer, whose use has increased dramatically in the last three decades largely because it can be applied through sprinkler irrigation systems to corn in all growth stages, is investigated. The dual isotopes δ15NNO3 and δ18ONO3 were measured in groundwater samples from 39 irrigation wells in two intensively sprinkler-irrigated, corn-growing areas of Nebraska with nitrate-contaminated (N …

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Restoring Fire-Grazer Interactions To Pursue Heterogeneity In Sandhills Prairie, Jack R. Arterburn, Dirac L. Twidwell Jr, Carissa L. Wonkka, Walter H. Schacht, David A. Wedin Jan 2019

Restoring Fire-Grazer Interactions To Pursue Heterogeneity In Sandhills Prairie, Jack R. Arterburn, Dirac L. Twidwell Jr, Carissa L. Wonkka, Walter H. Schacht, David A. Wedin

Department of Agronomy and Horticulture: Faculty Publications

Heterogeneity has emerged as a fundamental principle for grassland management and the importance of environmental heterogeneity for biological diversity has raised questions about the appropriateness of grassland practices that seek to promote uniform grassland structure and composition. Principles of uniformity in grassland management reflect a utilitarian target of “managing for the middle” by minimizing both overgrazing and underutilization while avoiding or preventing fire and other disturbances that consume aboveground biomass. We evaluated pioneering efforts to restore fire-grazer interactions via patch burning in an effort to increase spatial heterogeneity at the patch scale in the Nebraska Sandhills, a sandy soil, mixed-grass …

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Spatial Imaging And Screening For Regime Shifts, Daniel R. Uden, Dirac Twidwell, Craig R. Allen, Matthew O. Jones, David E. Naugle, Jeremy D. Maestas, Brady W. Allred Jan 2019

Spatial Imaging And Screening For Regime Shifts, Daniel R. Uden, Dirac Twidwell, Craig R. Allen, Matthew O. Jones, David E. Naugle, Jeremy D. Maestas, Brady W. Allred

Department of Agronomy and Horticulture: Faculty Publications

Screening is a strategy for detecting undesirable change prior to manifestation of symptoms or adverse effects. Although the well-recognized utility of screening makes it commonplace in medicine, it has yet to be implemented in ecosystem management. Ecosystem management is in an era of diagnosis and treatment of undesirable change, and as a result, remains more reactive than proactive and unable to effectively deal with today’s plethora of non-stationary conditions. In this paper, we introduce spatial imaging-based screening to ecology. We link advancements in spatial resilience theory, data, and technological and computational capabilities and power to detect regime shifts (i.e., vegetation …

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Influence Of Shaded Conditions On Development Of Asteraceae Species Native To Kansas, Aline Rodrigues De Queiroz Jan 2019

Influence Of Shaded Conditions On Development Of Asteraceae Species Native To Kansas, Aline Rodrigues De Queiroz

Master's Theses or Doctor of Nursing Practice

to the heterogeneity of habitats, all plants are exposed to at least some degree of shade during their lifetime. Reduced light intensity, drops in R:FR ratio, and limited blue light are cues for plants to perceive competition; the shade avoidance syndrome (SAS) is common for grassland species while shade tolerance (ST) is common for forest species when competition is perceived. SAS is characterized by elongation of stems and petioles, reduced branches, decreased leaf area, decreased shoot biomass, and increased number of ramets. ST is characterized by little elongation of stems and petioles, high chlorophyll content and high chlorophyll a/b ratio …

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Greening Rates And Photosynthetic Development Of Leaves In C3 And C4 Plants, Tayler J. Kriss Jan 2019

Greening Rates And Photosynthetic Development Of Leaves In C3 And C4 Plants, Tayler J. Kriss

Master's Theses or Doctor of Nursing Practice

To study chlorophyll development time and overall photosynthetic development in C3 and C4 leaves, seeds were germinated in complete darkness and achlorophyllous leaves were then allowed to develop in lighted conditions. Corn (Zea mays, C4), sorghum (Sorghum bicolor, C4), green bean (Phaseolus vulgaris, C3), broad bean (Vicia faba, C3), and wheat (Triticum aestivum, C3) were investigated for the first ten days of sunlight exposure. Chlorophyll concentration, chlorophyll fluorescence, and CO2 gas exchange measurements were conducted daily on the first leaf that emerged after the embryonic leaves of each plant. The first five days of the experiment, days zero to four …

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Island Invasion: The Silent Crisis In Hawaii, Sophia Janssen Jan 2019

Island Invasion: The Silent Crisis In Hawaii, Sophia Janssen

Pomona Senior Theses

Keeping out invasive species may, upon first review, seem like a trivial environmental cry from ecologists and deep environmentalists; a belated wish to return to an undeveloped world where nature was pristine. However invasive species create problems that impact all of us and can have far more severe consequences than changing a stunning landscape. These problems are heightened in islands like Hawaii, where the fragile ecosystems have developed over centuries of evolution and adaptation. The introduction of a disease-carrying mosquito can put the people of Hawaii at risk to many vector-born illnesses and create an epidemic, taking human life. The …

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Estimation Of Genomic Instability And Dna Methylation Due To Aluminum (Al) Stress In Wheat (Triticum Aestivum L.) Using Ipbs And Cred-Ipbs Analyses, Arash Hossein Pour, Güller Özkan, Özge Nalci, Kami̇l Hali̇loğlu Jan 2019

Estimation Of Genomic Instability And Dna Methylation Due To Aluminum (Al) Stress In Wheat (Triticum Aestivum L.) Using Ipbs And Cred-Ipbs Analyses, Arash Hossein Pour, Güller Özkan, Özge Nalci, Kami̇l Hali̇loğlu

Turkish Journal of Botany

Aluminum (Al) toxicity is a serious factor restricting crop productivity in acid soil, and Al is the major cause of phytotoxicity. However, the role of Al toxicity in interprimer binding site (iPBS) polymorphism, genomic instability, and DNA methylation has not been fully investigated. In the current study, the effects of different Al concentrations on iPBS polymorphism, genomic instability, and DNA methylation were investigated in seedlings of three wheat cultivars: Haymana 79, Kılçıksız, and Bezostaja 1. A higher aluminum concentration increased the polymorphism rate of the iPBS profile, but decreased genomic template stability in all cultivars . A higher Al concentration …

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Attempts To Save A Spanish Endemism Astragalus Devesae Talavera, A. González & G. López (Fabaceae) From Extinction, Karoline Aparecida Felix Ribeiro, José Ángel Sánchez Agudo, Silvia Sánchez Durán, Ester Vega Elices, José Sánchez Sánchez Jan 2019

Attempts To Save A Spanish Endemism Astragalus Devesae Talavera, A. González & G. López (Fabaceae) From Extinction, Karoline Aparecida Felix Ribeiro, José Ángel Sánchez Agudo, Silvia Sánchez Durán, Ester Vega Elices, José Sánchez Sánchez

Turkish Journal of Botany

Astragalus devesae Talavera, A. González & G. López (Fabaceae) is a threatened Hispanic endemic species whose distribution is restricted to the center of Spain (the province of Ávila). It is classified as ?Critically Endangered? in the 2010 List of Threatened Spanish Vascular Flora and as ?Endangered? in the ?Decree 63/2007? of Castile and Leon (administrative region in which Ávila is included). In this study, censuses of three existing populations were carried out and one of these that was found along the course of this work, was ecologically characterized. High interpopulation variability (0%, 26%, and 73%) was observed with respect to …

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Onopordum Nezaketianum Sp. Nov. (Asteraceae: Cardueae):A New Species From Central Anatolia, Turkey, Süleyman Mesut Pinar, Hüseyi̇n Eroğlu Jan 2019

Onopordum Nezaketianum Sp. Nov. (Asteraceae: Cardueae):A New Species From Central Anatolia, Turkey, Süleyman Mesut Pinar, Hüseyi̇n Eroğlu

Turkish Journal of Botany

Onopordum nezaketianum sp. nov. (Asteraceae: Cardueae) from the Central Anatolia region of Turkey is described based on morphological and palynological features. The new species is morphologically related to O. davisii Rech. f. and O. turcicum Danin, and is characterized by its capitula solitary or 2?4 on leafy 2?20 cm long peduncles, phyllaries 5?6 seriate, outer phyllaries sparsely arachnoid pubescent, ovate?lanceolate, flat or nearly reflexed; median phyllaries sparsely arachnoid pubescent, narrowly ovate?lanceolate, reflexed; inner phyllaries glabrous, linear?lanceolate, erect, flowers 20?25 mm; 4 corolla lobes equal, 4?5 mm long, and 5th lobe 6?7 mm long, pappus barbellate. Achenes 4.0?5.1 x 2.0?2.5 mm, …

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Moderate Level Of Toxic Boron Causes Differential Regulation Of Micrornas Related To Jasmonate And Ethylene Metabolisms In Arabidopsis Thaliana, Doğa Seli̇n Kayihan, Ceyhun Kayihan, Yelda Özden Çi̇ftçi̇ Jan 2019

Moderate Level Of Toxic Boron Causes Differential Regulation Of Micrornas Related To Jasmonate And Ethylene Metabolisms In Arabidopsis Thaliana, Doğa Seli̇n Kayihan, Ceyhun Kayihan, Yelda Özden Çi̇ftçi̇

Turkish Journal of Botany

Earlier our colleagues detected that the genes related to jasmonate (JA), ethylene, and cell wall modification were significantly regulated under boron (B) toxicity in wheat. Determination of regulation mechanisms of these novel genes under B toxicity is very important in Arabidopsis thaliana as a model plant. As key regulators, the microRNAs (miRNAs) regulate gene expression at the posttranscriptional level and respond to numerous abiotic stresses in plants. In this study, expression levels of miRNAs such as miR159, miR172, miR319, and miR394 targeting JA and ethylene-related transcription factors and also miR397 targeting laccase were determined in Arabidopsis thaliana under toxic B …

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G-Quadruplex Enrichment Analysis Reveals Their Role As Intronic Regulatory Elements In Plants, Osman Doluca Jan 2019

G-Quadruplex Enrichment Analysis Reveals Their Role As Intronic Regulatory Elements In Plants, Osman Doluca

Turkish Journal of Botany

G-Quadruplexes, a class of noncanonical but highly stable nucleic acid structures, have the potential to be part of the regulatory mechanism of cells. They can form in the genome where the double-stranded helix is unwound to facilitate formation of a G-quadruplex. The biological significance of these structures is yet to be understood entirely. This work presents a novel approach and investigates common characteristics in the distribution of G-quadruplexes relative to genes in plants through analysis of genomes and gene expressions. The results indicate that G-quadruplex distribution has gone through significant changes with the evolution of higher plants and, for the …

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Characterizing Ethylene Pathway Genes During The Development, Ripening, And Postharvest Response In Citrus Reticulata Blanco Fruit Pulp, Karishma Kashyap, Sofia Banu Jan 2019

Characterizing Ethylene Pathway Genes During The Development, Ripening, And Postharvest Response In Citrus Reticulata Blanco Fruit Pulp, Karishma Kashyap, Sofia Banu

Turkish Journal of Botany

Ethylene is involved in the regulation of the natural process of fruit pulp development and postharvest storage. The present study was carried out to determine the expression of eight genes encoding ethylene biosynthesis and signaling during development in Khasi mandarin (Citrus reticulata Blanco) fruit pulp as well as during postharvest storage in the fruit pulp (at 4 °C and 20 °C). Gibberellic acid (GA3) is known to improve internal fruit quality and to mediate various stress responses during postharvest fruit storage in species like citrus. The effect of GA3 during postharvest storage was also investigated to understand the regulation of …

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Assessing Impacts Of Climate Change On Campanula Yaltirikii H.Duman (Campanulaceae), A Critically Endangered Endemic Species In Turkey, Canan Dülgeroğlu, Ahmet Aksoy Jan 2019

Assessing Impacts Of Climate Change On Campanula Yaltirikii H.Duman (Campanulaceae), A Critically Endangered Endemic Species In Turkey, Canan Dülgeroğlu, Ahmet Aksoy

Turkish Journal of Botany

Ecological niche models (ENMs) provide information to assess the effects of environmental and climatic conditions on species distribution. The purpose of this study was to predict the impact of climate change on a critically endangered species, Campanula yaltirikii H.Duman. It is a local endemic chasmophyte from Mt Çığlıkara (Antalya, Turkey), restricted to cracks in calcareous rocks and threatened by goat overgrazing. Current and future ENMs of C. yaltirikii were predicted with a maximum entropy (Maxent) algorithm. The MIROC5 (Model for Interdisciplinary Research on Climate) climate change scenario for the year 2070 was used for projecting the future ENM of the …

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Roles Of Plant Cbl?Cipk Systems In Abiotic Stress Responses, Shilian Huang, Shaofeng Jiang, Junsong Liang, Miao Chen Jan 2019

Roles Of Plant Cbl?Cipk Systems In Abiotic Stress Responses, Shilian Huang, Shaofeng Jiang, Junsong Liang, Miao Chen

Turkish Journal of Botany

Plants evolved from long-term adaptation to form regulatory mechanisms of perception, transduction, and response to stresses. The CBL?CIPK signaling system is a basic calcium sensor that plays an important role in sensing adverse environmental stimuli. CBLs can perceive and bind Ca2+ under adversity and then specifically interact with CIPKs. The activated CBL?CIPK complex phosphorylates downstream target proteins (such as ion channels and transporters), or regulates transcription factors and stress responsive genes. Important progress has been made in the study of CBL?CIPK signaling pathways in response to high salt, low N, low K, high Mg, and high pH. This review summarizes …

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Reproductive Ecology Of Seseli Ghafoorianum (Apiaceae) Restricted To Rocky Cliffs In Iran, Yousef Ajani, Regine Classen-Bockhoff Jan 2019

Reproductive Ecology Of Seseli Ghafoorianum (Apiaceae) Restricted To Rocky Cliffs In Iran, Yousef Ajani, Regine Classen-Bockhoff

Turkish Journal of Botany

Endemic and relict species are of particular interest when evaluating the ecological intactness of a given area. In this paper, the reproductive ecology of Seseli ghafoorianum (Apiaceae) is investigated, aiming to contribute to its protection. The species is considered as a Tertiary relict species in Iran. Both dwarf form and cliff habitats are rare in the family, raising the question of how the plant has adapted to this environment. Population structure, plant architecture and flowering sequence, pollinators, pollen quantification, and seed set (bagging experiment) were investigated. Individuals produce about 20 flowering branches with ca. 120 umbels. Flowers and umbels are …

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A Contribution To The Taxonomy Of Zoegea (Asteraceae, Cardueae?Centaureinae), Kazem Negaresh, Mohammad Reza Rahiminejad Jan 2019

A Contribution To The Taxonomy Of Zoegea (Asteraceae, Cardueae?Centaureinae), Kazem Negaresh, Mohammad Reza Rahiminejad

Turkish Journal of Botany

A worldwide taxonomic revision and the relevant lectotypifications of Zoegea L. (Asteraceae) are presented. The recognized taxa, the relevant synonyms, type details, images of the type specimen, examined specimen lists, and a taxonomic key are provided for this genus. The geographic distribution of all recognized taxa is presented and tabulated. Zoegea leptaurea L. subsp. leptaurea for the floras of Iran and Saudi Arabia and also Z. purpurea Fresen. for the flora of Iraq are reported as new here.

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Identification And Functional Analysis Of Soybean Gmsbh1 Gene Promoter Conferring High Temperature- And Humidity-Induced Expression, Ming Chen, Peipei Qian, Zhankui Wang, Yingjie Shu, Yuan Tao, Liyan Huang, Yilong Wang, Haihong Zhao, Hao Ma Jan 2019

Identification And Functional Analysis Of Soybean Gmsbh1 Gene Promoter Conferring High Temperature- And Humidity-Induced Expression, Ming Chen, Peipei Qian, Zhankui Wang, Yingjie Shu, Yuan Tao, Liyan Huang, Yilong Wang, Haihong Zhao, Hao Ma

Turkish Journal of Botany

Soybean homeobox gene GmSBH1 has previously been proven to be involved in response to high temperature and humidity (HTH) stress. To investigate its expression patterns and active cis-elements, a 2040-bp 5'-upstream genomic DNA fragment of GmSBH1,named GmSBH1P, was isolated by PCR walking and characterized. Sequence analysis revealed that the fragment contains a series of cis-acting elements related to stress responses. The transient expression assay in the leaves of Nicotiana benthamiana and in the cotyledonary nodes of soybean indicated that the GmSBH1P strongly and rapidly mediates the induction of GUS expression under HTH stress. Deletion and mutation analysis of the promoter …

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Two Pronounced Chlorella Strains For Efficient Biodiesel Feedstock Production, İlhami̇ Tüzün, Zeynep Eli̇bol Çakmak, Emmanuel Young, Turgay Çakmak Jan 2019

Two Pronounced Chlorella Strains For Efficient Biodiesel Feedstock Production, İlhami̇ Tüzün, Zeynep Eli̇bol Çakmak, Emmanuel Young, Turgay Çakmak

Turkish Journal of Botany

In this study, two indigenous Chlorella strains were evaluated for triacylglycerol (TAG) production and related parameters during 10 days of N-deprivation. The strains were identified based on morphological characteristics and genomic information, named as Chlorella sp. IMU12 and Chlorella sp. IMU17. Time-dependent reduction of growth was accompanied by decreased chlorophyll content, reduced oxygen evolution ratio, and elevated carotenoid content of both strains cultivated in N-free Bold's basal medium. Nitrogen deprivation induced total lipid and neutral lipid content in both strains, supported by FTIR measurement of TAGs. Chlorella sp. IMU17 showed higher production of TAGs as a response to N-deprivation. Strikingly, …

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Morphological Characterization And Relationships Among Some Important Wild And Domestic Turkish Mustard Genotypes (Brassica Spp.), Fatma Kayaçeti̇n Jan 2019

Morphological Characterization And Relationships Among Some Important Wild And Domestic Turkish Mustard Genotypes (Brassica Spp.), Fatma Kayaçeti̇n

Turkish Journal of Botany

Mustards occupy an important place among oilseed species due to their considerable economic and nutritional value and multiple uses. This study made use of 77 mustard genotypes collected from the USDA gene bank and diverse ecologies of Turkey to determine the extent of morphologic variability among them. The genotypes were screened to select genotypes appropriate for use in mustard breeding programs during 2015?16 and 2016?17 under the Mediterranean rainfed conditions of Yenimahalle (spring sowing and autumn sowing) and Haymana (spring sowing). Cluster analysis showed significant diversity among the genotypes. Promising genotypes with different genetic backgrounds for spring and autumn sowing …

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Karyomorphological Features Of Turkish Centaurea (Subgenus Cyanus, Asteraceae) Species And Its Taxonomic Importance, Emrah Şi̇ri̇n, Meryem Bozkurt, Tuna Uysal, Kuddi̇si̇ Ertuğrul Jan 2019

Karyomorphological Features Of Turkish Centaurea (Subgenus Cyanus, Asteraceae) Species And Its Taxonomic Importance, Emrah Şi̇ri̇n, Meryem Bozkurt, Tuna Uysal, Kuddi̇si̇ Ertuğrul

Turkish Journal of Botany

In this study, the karyomorphology of 20 Turkish Centaurea (subgenus Cyanus) taxa was examined. The number of chromosomes of 11 taxa belonging to the subgenus Cyanus was determined for the first time. As a result of the karyomorphological studies, the number of basic chromosomes was determined to be x = 8, 10, and 12 in annuals and x = 10 and 11 in perennials. The populations are tetraploid in the seven perennial taxa and polyploidy is not rare for this group. On the other hand, all annual taxa are diploid. Considering the asymmetry indices, we can conclude that most taxa …

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Assessment Of Benthic Diatoms Taxonomic Diversity At Coastal Biotopes With Different Anthropogenic Impact (Crimea, The Black Sea), Elena Nevrova, Alexei Petrov Jan 2019

Assessment Of Benthic Diatoms Taxonomic Diversity At Coastal Biotopes With Different Anthropogenic Impact (Crimea, The Black Sea), Elena Nevrova, Alexei Petrov

Turkish Journal of Botany

An analysis of the taxonomic diversity of benthic diatoms was carried out for near-shore biotopes of Crimea with different content of trace metals and organic pollutants (PCBs, PAHs, DDTs). Taxonomic distinctness indices such as average taxonomic distinctness, AvTD (Δ+) and variation in taxonomic distinctness, VarTD (Λ+) were used for evaluation of the hierarchical structure of diatom taxocenes of two intact sites (Dvuyakornaya Bay and Cape Fiolent) and two heavily polluted water areas (Sevastopol Bay and Balaklava Bay). The highest similarity of species was revealed between healthy biotopes, in spite of their differences in hydrological and hydrochemical conditions. AvTD values for …

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Ratio-Based Vegetation Indices For Biomass Estimation Depending On Grassland Characteristics, Ahmet Karakoç, Murat Karabulut Jan 2019

Ratio-Based Vegetation Indices For Biomass Estimation Depending On Grassland Characteristics, Ahmet Karakoç, Murat Karabulut

Turkish Journal of Botany

Aboveground biomass (AGB) is one of the key indicators of aboveground net primary productivity (ANPP). The aim of this study is to demonstrate the potential of hyperspectral remote sensing techniques to predict AGB in grasslands. In order to reach this goal, biomass properties with different ecological features and altitudes of 550 m, 1200 m, and 1400 m above sea level were investigated. Twenty-one biomass samples and hyperspectral measurements were collected from each region and a total of 63 samples were analyzed. Linear and nonlinear regression models were generated to analyze the relationships between biomass and hyperspectral vegetation indices (VIs). The …

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Study Of Seed Coat Microsculpture Organization During Seed Development In Zygophyllum Fabago (Zygophyllaceae), Elham Mohajel Kazemi, Mina Kazemian, Fatemeh Majid Zadeh, Mahbubeh Aliasgharpour, Ali Movafeghi Jan 2019

Study Of Seed Coat Microsculpture Organization During Seed Development In Zygophyllum Fabago (Zygophyllaceae), Elham Mohajel Kazemi, Mina Kazemian, Fatemeh Majid Zadeh, Mahbubeh Aliasgharpour, Ali Movafeghi

Turkish Journal of Botany

The ontogeny of seed coat and endosperm tissue in Zygophyllum fabago L. was studied to determine their developmental importance using different histochemical and microscopic techniques. Our results revealed that the ovuleof Z. fabago was of the anatropous and bitegmic type. The inner epidermis cells were retained up to the end of seed development, whereas the other layers were removed in the early stages. Moreover, the outer integument was changed into the seed coat sculptures during the seed development. Concurrently, multiple cytoplasmic strings were formed at the seed coat cells. Fluorescence microscopic analysis indicated that callose and polyphenols were laid down …

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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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Characterization And Tissue-Specific As Well As Heat-Stress Expression Analysis Of Cbl-Interacting Protein Kinase Genes In Dimocarpus Longan Lour, Wei Zheng, Xueming Dong, Xuefei Yu, Qiuying Zhang Jan 2019

Characterization And Tissue-Specific As Well As Heat-Stress Expression Analysis Of Cbl-Interacting Protein Kinase Genes In Dimocarpus Longan Lour, Wei Zheng, Xueming Dong, Xuefei Yu, Qiuying Zhang

Turkish Journal of Botany

The CBL-interacting protein kinase (CIPK) gene family plays important roles in plant growth, development, and responses to abiotic stresses. To date, the CIPKs have been extensively identified and characterized in various plants. However, there have been few studies on CIPKs in Dimocarpus longan Lour (D. longan). In this study we identified eight putative CIPKs in D. longan (DlCIPKs) according to RNA-seq data. The physicochemical properties, subcellular localization, conserved motifs, phylogenetic relationships, glycosylation and phosphorylation sites, and gene ontology annotation were analyzed using bioinformatics tools. The tissue-specific and heat-stress-responsive expressions were systematically investigated as well. Ten motifs widely maintained by DlCIPKs …

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Folk Medicine In Düzce Province (Turkey), İlhan Gürbüz, Ayşe Mi̇ne Gençler Özkan, Gali̇p Akaydin, Ece Sali̇hoğlu, Tuğba Günbatan, Fati̇h Demi̇rci̇, Erdem Yeşi̇lada Jan 2019

Folk Medicine In Düzce Province (Turkey), İlhan Gürbüz, Ayşe Mi̇ne Gençler Özkan, Gali̇p Akaydin, Ece Sali̇hoğlu, Tuğba Günbatan, Fati̇h Demi̇rci̇, Erdem Yeşi̇lada

Turkish Journal of Botany

The present study was conducted to collect, record, and document local knowledge of medicinal practices in Düzce, a northwestern Anatolian province. To the best of our knowledge, no comprehensive ethnobotanical study has been reported from this province. Information was acquired through semistructured interviews and personal conversations using a questionnaire and numerous guided field trips with local knowledgeable people. For quantitative analyses and comparisons, recorded data such as informant consensus factor (FIC) and use value (UV) were calculated, respectively. As a result of extensive field studies, 122 taxa were determined as folk medicines; 76 of were wild and 46 were cultivated. …

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Biology Of Flowering And Insect Visitors Of Iris Aphylla L. (Iridaceae), Agnieszka Dabrowska, Magdalena Smigala, Bozena Denisow, Krystyna Winiarczyk Jan 2019

Biology Of Flowering And Insect Visitors Of Iris Aphylla L. (Iridaceae), Agnieszka Dabrowska, Magdalena Smigala, Bozena Denisow, Krystyna Winiarczyk

Turkish Journal of Botany

The paper presents the morphology of the flower of Iris aphylla L., which is a protected species in many European countries. The study comprises phenological observations of flowering and assessment of nectar and pollen production, and flowering and fruiting abundance. Additionally, the number of insect visitors on the flowers was monitored. The investigations of specimens originating from 4 populations in central-eastern Poland (Wyzyna Lubelska Upland) were conducted in the Botanical Garden of Maria Curie-Sklodowska University. It was found that morphological features of the analysed flowers, i.e. the 6-angular ovary and the perianth tube, which is 2-fold longer than the ovary, …

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Relative Competitive Abilities, Intersexual Overyielding, And Population Sex Ratio Changes In A Bryophyte, Zachary Stanley Jan 2019

Relative Competitive Abilities, Intersexual Overyielding, And Population Sex Ratio Changes In A Bryophyte, Zachary Stanley

Theses and Dissertations--Biology

Unequal sex ratios are widespread in dioecious plants and understanding their cause is important to understanding fundamental aspects of their population dynamics, and yet what causes biased sex ratios in plants is still poorly understood. Competition experiments have been used in plants to predict the outcome of species interactions, but they have rarely been used to help explain sex ratio bias. This study used a response surface competition design to measure the relative competitive abilities of the sexes of the bryophyte Marchantia inflexa (a thallus liverwort of Marchantiaceae) to predict the outcome of competition before the onset of sexual reproductive …

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