Results 11 to 20 of about 37,140 (299)
Photophysiological and photosynthetic complex changes during iron starvation in Synechocystis sp. PCC 6803 and Synechococcus elongatus PCC 7942. [PDF]
PLoS ONE, 2013 Iron is an essential component in many protein complexes involved in photosynthesis, but environmental iron availability is often low as oxidized forms of iron are insoluble in water.
Jared M Fraser +5 more
doaj +2 more sources
Photoinhibition and protection of photosystem I. [PDF]
Plant Cell Physiol, 2007 Abstract Over 30 years ago, when we first reported the selective photoinhibition of photosystem I (PSI) in chilling-sensitive plants at chilling temperatures, the inhibition tended to be regarded as a specific phenomenon observed only under unusual conditions.
Sonoike K.
europepmc +4 more sources
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
doaj +3 more sources
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
doaj +2 more sources
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
openaire +4 more sources
The cryo-EM structure of Photosystem I from Chromera velia with a bound superoxide dismutase heterodimer [PDF]
Nature CommunicationsPhotosystem I is a key component of the solar energy conversion machinery in oxygenic photosynthesis, and its core, where photochemistry occurs, is highly conserved.
Xukun Yuan +11 more
doaj +2 more sources
The natural herbicide rhein targets photosystem I [PDF]
Scientific ReportsThe natural anthraquinone rhein has been identified as a novel herbicide with a potentially new mode of action using a generative AI system for functional molecules discovery.
Alyssa Twitty +6 more
doaj +2 more sources
Shining light on dinoflagellate photosystem I [PDF]
Nature CommunicationsDinoflagellates are ecologically important and essential to corals and other cnidarians as phytosymbionts, but their photosystems had been underexplored. Recently, photosystem I (PSI) of dinoflagellate Symbiodinium sp.
Senjie Lin +4 more
doaj +2 more sources
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
doaj +2 more sources
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
doaj +2 more sources