Results 31 to 40 of about 450,672 (358)
The moss Bryum argenteum var. muticum Brid. is well adapted to cope with high light in continental Antarctica [PDF]
, 2012 The net photosynthetic rate (NP), chlorophyll fluorescence, carotenoid content and chlorophyll content of the cosmopolitan moss Bryum argenteum were measured in the field at Botany Bay, southern Victoria Land, continental Antarctica (77°S).
Green, T.G. Allan +5 more
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Horticulturae, 2023 The effect of nano silica (50 mL L−1) and melatonin (75 µM) individually or in combination in foliar applications on the morphophysiological, biochemical and yield properties of pea plants under salinity stress conditions was evaluated.
Wasimah B. Al-Shammari +2 more
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Saharan dust deposition may affect phytoplankton growth in the mediterranean sea at ecological time scales [PDF]
, 2014 The surface waters of the Mediterranean Sea are extremely poor in the nutrients necessary for plankton growth. At the same time, the Mediterranean Sea borders with the largest and most active desert areas in the world and the atmosphere over the basin is
Baldasano Recio, José María +4 more
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Biomolecules & Biomedicine, 2005 Qualitative-quantitative structure of plant pigments in wild plants Malva silvestrs L. and Malva moschata L. (Malvaceae), which were collected in 20 locations in Sarajevo area and surroundings, was tested during spring and summer in 2003.
Sulejman Redžić +2 more
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Remote Sensing, 2023 In this study, we combined machine learning and remote sensing techniques to estimate the value of chlorophyll-a concentration in a freshwater ecosystem in the South American continent (lake in Southern Chile).
Lien Rodríguez-López +7 more
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From chlorophyll a towards bacteriochlorophyll a: Excited-state processes of modified pigments [PDF]
, 1994 By means of fluorescence spectroscopy and nonlinear absorption experiments, excited-state processes of the modified pigments [3-acetyl]-chlorophyll a, [31-OH]-bacteriochlorophyll a and [3-vinyl]-bacteriochlorophyll a were investigated and compared with ...
Katheder, Ingrid +4 more
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Extinction coefficient for red-shifted chlorophylls: Chlorophyll d and chlorophyll f
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2012 Both chlorophyll f and chlorophyll d are red-shifted chlorophylls in oxygenic photosynthetic organisms, which extend photon absorbance into the near infrared region. This expands the range of light that can be used to drive photosynthesis. Quantitative determination of chlorophylls is a crucial step in the investigation of chlorophyll-photosynthetic ...
Robert E. Blankenship +4 more
openaire +3 more sources
Molecules, 2023 Plant-based extracts possess biological potential due to their high content of phytochemicals. Nevertheless, photosynthetic pigments (e.g., chlorophylls) that are also present in plant extracts could produce undesirable pro-oxidant activity that might ...
Abdülhadi Cihangir Uğuz +5 more
doaj +1 more source
Proton-Electron Hyperfine Coupling Constants of the Chlorophyll a Cation Radical by ENDOR Spectroscopy [PDF]
, 1977 In this paper we describe the assignment of the major coupling constants in monomer chlorophyll a cation free radical by ENDOR spectroscopy. To facilitate chemical manipulation methylpyrochlorophyllide a has been used as a stand-in, and a suite of six ...
Katz, J. J., Norris, J. R., Scheer, Hugo
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