Results 11 to 20 of about 21,155,445 (195)
RpaA regulates the accumulation of monomeric photosystem I and PsbA under high light conditions in Synechocystis sp. PCC 6803. [PDF]
PLoS ONE, 2012 The response regulator RpaA was examined by targeted mutagenesis under high light conditions in Synechocystis sp. PCC 6803. A significant reduction in chlorophyll fluorescence from photosystem I at 77 K was observed in the RpaA mutant cells under high ...
Waqar Majeed +6 more
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Biologia Plantarum, 2013 Recently, the truncated hemoglobin gene (trHb) was discovered in plant species, however, its role has not yet been determined. In this study, the gene expression of wheat trHb (TatrHb) was analyzed under various biotic and abiotic stresses.
D. Y. Kim +4 more
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Structure of photosystem I [PDF]
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2001 In plants and cyanobacteria, the primary step in oxygenic photosynthesis, the light induced charge separation, is driven by two large membrane intrinsic protein complexes, the photosystems I and II. Photosystem I catalyses the light driven electron transfer from plastocyanin/cytochrome c(6) on the lumenal side of the membrane to ferredoxin/flavodoxin ...
Fromme, P., Jordan, P., Krauß, Norbert
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Nature Communications, 2020 Evergreen conifers rely on ‘sustained quenching’ to protect their photosynthetic machinery during long, cold winters. Here, Bag et al. show that direct energy transfer (spillover) from photosystem II to photosystem I triggered by loss of grana stacking ...
Pushan Bag +8 more
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Antenna complexes protect Photosystem I from Photoinhibition [PDF]
BMC Plant Biology, 2009 Background Photosystems are composed of two moieties, a reaction center and a peripheral antenna system. In photosynthetic eukaryotes the latter system is composed of proteins belonging to Lhc family. An increasing set of evidences demonstrated how these
Hienerwadel Rainer +4 more
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Electron transfer in photosystem I [PDF]
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2001 This mini-review focuses on recent experimental results and questions, which came up since the last more comprehensive reviews on the subject. We include a brief discussion of the different techniques used for time-resolved studies of electron transfer in photosystem I (PS I) and relate the kinetic results to new structural data of the PS I reaction ...
Brettel, Klaus, Leibl, Winfried
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Vibrational spectroscopy of photosystem I [PDF]
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2015 Fourier transform infrared difference spectroscopy (FTIR DS) has been widely used to study the structural details of electron transfer cofactors (and their binding sites) in many types of photosynthetic protein complexes. This review focuses in particular on work that has been done to investigate the A₁cofactor in photosystem I photosynthetic reaction ...
Hastings, Gary
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Molecular diversity and evolution of far-red light-acclimated photosystem I
Frontiers in Plant Science, 2023 The need to acclimate to different environmental conditions is central to the evolution of cyanobacteria. Far-red light (FRL) photoacclimation, or FaRLiP, is an acclimation mechanism that enables certain cyanobacteria to use FRL to drive photosynthesis ...
Christopher J. Gisriel +5 more
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Photosynthetica, 2020 Plane (Platanus orientalis) is a popular park tree in Europe but is almost extinct in natural ecosystems, because of climate changes. In our study, two ecotypes of plane tree (Bulgarian and Italian) were submitted to moderately elevated temperature that ...
S. DIMITROVA +8 more
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Frontiers in Plant Science, 2022 Light absorbed by chlorophylls of Photosystems II and I drives oxygenic photosynthesis. Light-harvesting complexes increase the absorption cross-section of these photosystems.
Hamed Sattari Vayghan +10 more
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