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Full-Text Articles in Life Sciences
Dynamics Of Co2 Consumption, And Biomass And Lipid Carbon Production During Photobioreactor Cultivation Of The Diatom Cyclotella, Altan Özkan
Turkish Journal of Botany
Understanding of CO2 delivery and consumption dynamics in algal photobioreactors are critical to unravel microalgae?s full potential for bioproduct generation and carbon capture from flue gas streams. This study aims to expand our current understanding by cultivating the diatom Cyclotella under controlled process conditions of a bubble column photobioreactor and analyzing CO2 consumption dynamics in real time using results from an online CO2 sensor connected to the reactor exhaust. Two sets of experiments were conducted: they served to contrast the influence of silicon and nitrate (Si&N colimitation) and Si limitation, and the light availability, respectively. CO2 consumption …
Ratio-Based Vegetation Indices For Biomass Estimation Depending On Grassland Characteristics, Ahmet Karakoç, Murat Karabulut
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 …
Phytoplankton Dynamics And Structure, And Ecological Status Estimation By The Q Assemblage Index: A Comparative Analysis In Two Shallow Mediterranean Lakes, Tuğba Ongun Sevi̇ndi̇k, Hati̇ce Tunca, Ari̇f Gönülol, Ni̇sa Gürsoy, Şeyma Nur Küçükkaya, Zuhal Kinali
Phytoplankton Dynamics And Structure, And Ecological Status Estimation By The Q Assemblage Index: A Comparative Analysis In Two Shallow Mediterranean Lakes, Tuğba Ongun Sevi̇ndi̇k, Hati̇ce Tunca, Ari̇f Gönülol, Ni̇sa Gürsoy, Şeyma Nur Küçükkaya, Zuhal Kinali
Turkish Journal of Botany
The aim of this research was to compare the phytoplankton structure on the basis of environmental variables and test the Q assemblage index based on phytoplankton functional groups in two shallow Mediterranean lakes [Lake Taşkısığı (LT) and Lake Little Akgöl (LLA)] in the north of Turkey. Variations in the phytoplankton structure and environmental parameters were analyzed monthly at two stations of each lake between January 2013 and December 2013. We showed that total phosphorus (TP) values were vital in shaping phytoplankton biomass in eutrophic LLA. Nitrate-nitrogen (NO3-N), TP, zmix/zeu, and macrophyte coverage are important in shaping the differences in dominant …
Plant Biomass: Insights From Imaging Cell Walls Using Molecular Probes, Utku Avci
Plant Biomass: Insights From Imaging Cell Walls Using Molecular Probes, Utku Avci
Turkish Journal of Botany
Cell walls are an important and growing subject of research in plant biology. In the last decade, there has been an increasing interest in using cell walls as feedstock for the production of second generation biofuels. This has resulted in an expansion in the number of cell wall studies and has highlighted the need for a better understanding of cell wall structure and function. Cell walls are composed of polymers with complex and dynamic structures that vary between cell types and developmental stages as well as between taxonomic groups of plants. To address the diversity of glycans that form the …
Influence Of Culture Media And Carbon Sources On Biomass Productivity And Oil Content Of The Algae Sirogonium Sticticum, Temnogyra Reflexa, Uronema Elongatum, And Chroococcus Turgidus, Aftab Alam, Saleem Ullah, Sahib Alam, Hamid Ullah Shah, Saadia Aftab, Muhammad Siddiq, Nazish Manzoor
Influence Of Culture Media And Carbon Sources On Biomass Productivity And Oil Content Of The Algae Sirogonium Sticticum, Temnogyra Reflexa, Uronema Elongatum, And Chroococcus Turgidus, Aftab Alam, Saleem Ullah, Sahib Alam, Hamid Ullah Shah, Saadia Aftab, Muhammad Siddiq, Nazish Manzoor
Turkish Journal of Botany
The aim of the present study was to investigate the effect of nutritional formulations, viz. Bristol's medium (BM), water extract of dairy waste (DW), commercial fertilizers mix (FM), and carbon sources such as NaHCO3, CaCO3, and wheat flour hydrolysate on the biomass productivity and oil content of the algal species Sirogonium sticticum, Temnogyra reflexa, Uronema elongatum, and Chroococcus turgidus. Among the nutritional formulations tested, BM showed the highest average effect, followed by DW, on the biomass and oil contents of the species. As for carbon sources, CaCO3 was more efficient in enhancing algal biomass, while NaHCO3 was proficient in increasing …
Photosynthetic Gas Exchange, Chlorophyll Fluorescence, Antioxidant Enzymes, And Growth Responses Of Jatropha Curcas During Soil Flooding, Krishan Kumar Verma, Munna Singh, Ramwant Kumar Gupta, Chhedi Lal Verma
Photosynthetic Gas Exchange, Chlorophyll Fluorescence, Antioxidant Enzymes, And Growth Responses Of Jatropha Curcas During Soil Flooding, Krishan Kumar Verma, Munna Singh, Ramwant Kumar Gupta, Chhedi Lal Verma
Turkish Journal of Botany
The response of chlorophyll fluorescence, photosynthetic CO_2 assimilation (PN), stomatal conductance (gs), electrolyte leakage, and transpiration (E) was observed in Jatropha curcas seedlings subjected to soil flooding. A strong reduction in growth, leaf-area expansion (64%), and stomatal conductance (45%) impaired photosynthetic CO_2 assimilation (66%), which eventually reduced biomass yield. The ratio between variable-to-initial chlorophyll fluorescence (Fv/Fo) and the maximum quantum yield efficiency of the photosystem II (Fv/Fm) was used to explore damage associated with the functioning of the photosynthetic apparatus. A strong, non-linear correlation between physiological parameters and soil flooding duration was found. Our study primarily revealed consequences of epigenetics, …
Germination, Growth And Biomass Accumulation As Influenced By Seed Size In Mesua Ferrea L., A. Arunachalam, M. L. Khan, N. D. Singh
Germination, Growth And Biomass Accumulation As Influenced By Seed Size In Mesua Ferrea L., A. Arunachalam, M. L. Khan, N. D. Singh
Turkish Journal of Botany
Mesua ferrea L. was evaluated for its germination, seedling growth and biomass across four seed size classes. The production of two- and three-seeded fruits was high. The viability of the seeds was 58-81%. Germination was positively correlated with seed weight. Heavier seeds showed early and rapid germination. The contribution of leaves to total biomass yield was 27-60 % in 1-month old seedlings. Carbon content was also related with plant length and weight in the seedlings. The study concludes that the variations in seed size have a substantial influence on growth and biomass accumulation in Mesua ferrea. Such variation also helps …
Macrofungi Of Yahyalı Region (Kayseri), Giyasetti̇n Kaşik, Celaleddi̇n Öztürk, Azi̇z Türkoğlu, Hasan Hüseyi̇n Doğan
Macrofungi Of Yahyalı Region (Kayseri), Giyasetti̇n Kaşik, Celaleddi̇n Öztürk, Azi̇z Türkoğlu, Hasan Hüseyi̇n Doğan
Turkish Journal of Botany
Some macrofungi specimens were collected from Yahyalı (Kayseri) province in 2000-2001. As a result of field and laboratory studies, 94 taxa belonging to 28 families were identified. Nine species belong to Ascomycotina and 85 to Basidiomycotina. The distribution, habitat and collecting numbers of the identified species are given.
A Study On The Occurrence Of Merismopedia Meyen (Cyanobacteria) Populations On The Littoral Sediments Of İzmit Bay (Turkey), Yelda Aktan, Güler Aykulu
A Study On The Occurrence Of Merismopedia Meyen (Cyanobacteria) Populations On The Littoral Sediments Of İzmit Bay (Turkey), Yelda Aktan, Güler Aykulu
Turkish Journal of Botany
In a previous study of epipelic diatoms on the littoral sediments of İzmit Bay (Marmara Sea, Turkey), which was carried out from March 1999 to September 2000, it was found that two Merismopedia Meyen species (Cyanobacteria) occurred frequently. In the present study, the seasonal variations of density and biomass of the Merismopedia species, which were dominant at certain times in the epipelic algal flora on the littoral sediments of İzmit Bay, were investigated. In addition, some physical and chemical parameters were measured. One of the species, Merismopedia glauca (Ehrenb.) Nägeli, was dominant in terms of cell numbers and frequency while …
Seasonal Variations In The Biomass Of Macro-Algal Communities From The Gulf Of Antalya (North-Eastern Mediterranean), İsmai̇l İbrahi̇m Turna, Ö. Osman Ertan, Mario Cormaci, Giovanni Furnari
Seasonal Variations In The Biomass Of Macro-Algal Communities From The Gulf Of Antalya (North-Eastern Mediterranean), İsmai̇l İbrahi̇m Turna, Ö. Osman Ertan, Mario Cormaci, Giovanni Furnari
Turkish Journal of Botany
In this study, the seasonal variations in the macro-algal biomass in the Gulf of Antalya (north-eastern Mediterranean) were investigated. The seasonal variations of the macro-algal biomass were found to be related to the biology of the abundant species during less favourable seasons. These variations occurred usually as a result of a significant reduction in algal density [Padina pavonica (L.) J.V.Lamour., Dasycladus vermicularis (Scopoli) Krasser, Chondrophycus papillosus (C.Agardh) Garbay & Harper] or loss of major part of their thallus [Cystoseira spp., Liagora distenta (Mertens ex Roth) J.V.Lamour., Liagora viscida (Forssk.) C.Agardh]. The highest values of biomass were found to be in …