Results 51 to 60 of about 333,362 (220)

Isoprene Emission in Darkness by a Facultative Heterotrophic Green Alga

open access: yesFrontiers in Plant Science, 2020
Isoprene is a highly reactive biogenic volatile hydrocarbon that strongly influences atmospheric oxidation chemistry and secondary organic aerosol budget. Many phytoplanktons emit isoprene like terrestrial pants.
K. G. Srikanta Dani   +6 more
doaj   +1 more source

Phenotyping Plant Responses to Biotic Stress by Chlorophyll Fluorescence Imaging

open access: yesFrontiers in Plant Science, 2019
Photosynthesis is a pivotal process in plant physiology, and its regulation plays an important role in plant defense against biotic stress. Interactions with pathogens and pests often cause alterations in the metabolism of sugars and sink/source ...
M. Pérez-Bueno, M. Pineda, M. Barón
semanticscholar   +1 more source

Assessment of the Ab Initio Bethe-Salpeter Equation Approach for the Low-Lying Excitation Energies of Bacteriochlorophylls and Chlorophylls [PDF]

open access: yes, 2020
Bacteriochlorophyll and Chlorophyll molecules are crucial building blocks of the photosynthetic apparatus in bacteria, algae and plants. Embedded in transmembrane protein complexes, they are responsible for the primary processes of photosynthesis: excitation energy and charge transfer. Here, we use ab initio many body perturbation theory within the $GW$
arxiv   +1 more source

Пігменти, ефективність фотосинтезу і продуктивність пшениці

open access: yesPlant Varieties Studying and Protection, 2018
Мета. Проаналізувати показники пігментного апарату і фотосинтетичної ефективності пшениці у зв’язку з перспективами підвищення врожайності. Методи. Польовий, дрібноділянковий, морфометричний, спектрофотометричний, високоефективна рідинна хроматографія ...
Г. О. Прядкіна
doaj   +1 more source

Frequently asked questions about chlorophyll fluorescence, the sequel

open access: yesPhotosynthesis Research, 2016
Using chlorophyll (Chl) a fluorescence many aspects of the photosynthetic apparatus can be studied, both in vitro and, noninvasively, in vivo. Complementary techniques can help to interpret changes in the Chl a fluorescence kinetics.
H. Kalaji   +28 more
semanticscholar   +1 more source

Multi-step prediction of chlorophyll concentration based on Adaptive Graph-Temporal Convolutional Network with Series Decomposition [PDF]

open access: yesarXiv, 2023
Chlorophyll concentration can well reflect the nutritional status and algal blooms of water bodies, and is an important indicator for evaluating water quality. The prediction of chlorophyll concentration change trend is of great significance to environmental protection and aquaculture.
arxiv  

Foliar Spray of Micronutrients Alleviates Heat and Moisture Stress in Lentil (Lens culinaris Medik) Grown Under Rainfed Field Conditions

open access: yesFrontiers in Plant Science, 2022
The simultaneous occurrence of high temperature and moisture stress during the reproductive stage of lentil (Lens culinaris Medik) constrains yield potential by disrupting the plant defense system. We studied the detrimental outcomes of heat and moisture
Visha Kumari Venugopalan   +12 more
doaj   +1 more source

Photochemistry beyond the red limit in chlorophyll f–containing photosystems

open access: yesScience, 2018
Lower-energy photons do the work, too Plants and cyanobacteria use chlorophyll-rich photosystem complexes to convert light energy into chemical energy. Some organisms have developed adaptations to take advantage of longer-wavelength photons.
Dennis J. Nürnberg   +11 more
semanticscholar   +1 more source

Ab initio calculation of UV-Vis absorption spectra of a single molecule chlorophyll a: Comparison study between RHF/CIS, TDDFT, and semi-empirical methods [PDF]

open access: yesITB Journal of Science 44A (2), 79-98 (2012), 2011
Chlorophyll a is one the most abundant pigment on Earth that responsible for trapping the light energy to perform photosynthesis in green plants. This molecule is a metal-complex that consists of a porphyrin ring with high symmetry that acts as ligands with magnesium as the central ion. Chlorophyll a has been studied for many years from different point
arxiv   +1 more source

Post-translational coordination of chlorophyll biosynthesis and breakdown by BCMs maintains chlorophyll homeostasis during leaf development

open access: yesNature Communications, 2020
Chlorophyll is indispensable for life on Earth. Dynamic control of chlorophyll level, determined by the relative rates of chlorophyll anabolism and catabolism, ensures optimal photosynthesis and plant fitness.
Peng Wang   +4 more
semanticscholar   +1 more source

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