Results 41 to 50 of about 93,335 (307)
Impacts of Chlorine on the Change of Chlorophyll Fluorescence Spectrum to Phaeodactylum tricornutum
Analytica, 2023 Chlorine-containing disinfectants have been widely used all over the world to prevent COVID-19. However, little is known about the potential risk of chlorine-containing disinfectants in the marine environment. Phaeodactylum tricornutum (P.
Na Li +4 more
doaj +1 more source
Cytochrome c 6-like protein as a putative donor of electrons to photosystem I in the cyanobacterium Nostoc sp. PCC 7119 [PDF]
, 2011 Most organisms performing oxygenic photosynthesis contain either cytochrome c 6 or plastocyanin, or both, to transfer electrons from cytochrome b 6-f to photosystem I. Even though plastocyanin has superseded cytochrome c 6 along evolution, plants contain
Gil Martínez, Jorge +2 more
core +1 more source
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1998 Photosystem two (PSII) is unique among hte various types of photosynthetic systems in that it produces a very high redox potential so as to oxidise water. As a consequence it is unable to protect itself completely against singlet oxygen production generated by chlorophyll triplets. Mass spectrometry has shown that this leads to successive light induced
openaire +2 more sources
Photoinhibition of photosystem I [PDF]
Physiologia Plantarum, 2010 The photoinhibition of Photosystem I (PSI) drew less attention compared with that of Photosystem II (PSII). This could be ascribed to several reasons, e.g. limited combinations of plant species and environmental conditions that cause PSI photoinhibition, the non‐regulatory aspect of PSI photoinhibition, and methodological difficulty to determine the ...
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Photosystems under high light stress: throwing light on mechanism and adaptation
Photosynthetica, 2023 High light stress decreases the photosynthetic rate in plants due to photooxidative damage to photosynthetic apparatus, photoinhibition of PSII, and/or damage to PSI.
N. SHARMA +7 more
doaj +1 more source
S = 3 Ground State for a Tetranuclear Mn^(IV)₄O₄ Complex Mimicking the S₃ State of the Oxygen Evolving Complex [PDF]
, 2020 The S₃ state is currently the last observable intermediate prior to O–O bond formation at the oxygen-evolving complex (OEC) of Photosystem II, and its electronic structure has been assigned to a homovalent Mn^(IV)₄ core with an S = 3 ground state.
Agapie, Theodor +6 more
core
Ethylene-dependent effects of fusaric acid on the photosynthetic activity of tomato plants
Photosynthetica, 2021 Fusaric acid (FA) is one of the potential toxins produced by pathogenic Fusarium species which exerts oxidative stress and cell death in plants. In this work, the effects of different concentrations of FA were investigated on the photosynthetic activity ...
N. IQBAL +3 more
doaj +1 more source
Ratiometric Mycotoxin Detection in Living Plants With Dual‐Emissive Nanosensors
Advanced Materials, EarlyView.A minimally invasive microneedle patch integrates carbon dot‐embedded metal–organic frameworks as nanosensors to detect a key fungal toxin in living plants. The nanosensor produces a ratiometric fluorescence signal that enables early, non‐destructive diagnosis of fungal infection before visible symptoms, offering a new biomaterials‐based strategy for ...
Yuliang Li +9 more
wiley +1 more source
Analysis of Fast Fluorescence Kinetics of a Single Cyanobacterium Trapped in an Optical Microcavity
Plants, 2023 Photosynthesis is one the most important biological processes on earth, producing life-giving oxygen, and is the basis for a large variety of plant products.
Tim Rammler +6 more
doaj +1 more source
STRUCTURE OF METHYLPHEOPHORBIDE-RCI [PDF]
, 1986 he methanolic extract of the cyanobacterium (blue-green alga) Spirulina geitleri has been treated with methanolic acid to convert all chlorophyllous pigments to their methylpheophorbides.
Budzikiewicz H. +27 more
core +1 more source