Results 21 to 30 of about 47,143 (306)

Chloramphenicol mediates superoxide production in Photosystem II and enhances its photodamage in isolated membrane particles

open access: yesFrontiers in Plant Science, 2016
Chloramphenicol is an inhibitor of protein synthesis, which is frequently used to decouple photodamage and protein synthesis dependent repair of Photosystem II during the process of photoinhibition.
Ateeq Ur Rehman   +2 more
doaj   +1 more source

Photosystem II: evolutionary perspectives [PDF]

open access: yesPhilosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2003
Based on the current model of its structure and function, photosystem II (PSII) seems to have evolved from an ancestor that was homodimeric in terms of its protein core and contained a special pair of chlorophylls as the photo–oxidizable cofactor.
A W, Rutherford, P, Faller
openaire   +2 more sources

Quality control of Photosystem II: the mechanisms for avoidance and tolerance of light and heat stresses are closely linked to membrane fluidity of the thylakoids

open access: yesFrontiers in Plant Science, 2016
When oxygenic photosynthetic organisms are exposed to excessive light and/or heat, Photosystem II is damaged and electron transport is blocked. In these events, reactive oxygen species, endogenous radicals and lipid peroxidation products generated by ...
Yasusi Yamamoto
doaj   +1 more source

Differences in Ionic, Enzymatic, and Photosynthetic Features Characterize Distinct Salt Tolerance in Eucalyptus Species

open access: yesPlants, 2021
In the face of rising salinity along coastal regions and in irrigated areas, molecular breeding of tolerant crops and reforestation of exposed areas using tolerant woody species is a two-way strategy.
Hazar Balti   +3 more
doaj   +1 more source

Impact of NaCl on physiological and biochemical characteristics of maize (Zea mays L.) plants

open access: yesФактори експериментальної еволюції організмів, 2021
Aim. The effect of 50 and 100 mmol NaCl concentrations on seed germination, the content of green pigments in seedlings, and on the activity of photosystem II in seedlings of maize varieties Zagatala 420, Zagatala 514, Zagatala 68 and Gurur and hybrid ...
K. R. Tagieva, I. V. Azizov
doaj   +1 more source

Interactions between heavy metals and photosynthetic materials studied by optical techniques [PDF]

open access: yes, 2009
In this work studies on rapid inhibitory interactions between heavy metals and photosynthetic materials at different organization levels were carried out by optical assay techniques, investigating the possibility of applications in the heavy metal ...
CATUCCI, Lucia   +14 more
core   +1 more source

Excitation Energy Transfer and Trapping in Higher Plant Photosystem II Complexes with Different Antenna Sizes [PDF]

open access: yes, 2011
700 cm(-1)) and a slow relaxation of the radical pair to an irreversible state (similar to 150 ps). Somewhat unexpectedly, we had to reduce the energy-transfer and charge-separation rates in complexes with decreasing size to obtain optimal fits.
van Amerongen, H.   +14 more
core   +1 more source

The response of sunflower to acute disturbance in water availability

open access: yesActa Agriculturae Slovenica, 2005
The influence of disturbance in water availability to electron flow in photosystem II was studied in five cultivars of sunflower. The results showed unaffected optimal quantum yield of photosystem II in the plants exposed to limited water supply ...
Mateja GERM   +2 more
doaj   +1 more source

Knock-Out of the Genes Coding for the Rieske Protein and the ATP-Synthase δ-Subunit of Arabidopsis [PDF]

open access: yes, 2003
In Arabidopsis, the nuclear genes PetC and AtpD code for the Rieske protein of the cytochrome b6/f (cyt b6/f) complex and the δ-subunit of the chloroplast ATP synthase (cpATPase), respectively.
Leister, Dario   +8 more
core   +1 more source

Blue light is more essential than red light for maintaining the activities of photosystem II and I and photosynthetic electron transport capacity in cucumber leaves

open access: yesJournal of Integrative Agriculture, 2016
Blue and red lights differently regulate leaf photosynthesis. Previous studies indicated that plants under blue light generally exhibit better photosynthetic characteristics than those under red light.
Yan-xiu MIAO   +4 more
doaj   +1 more source

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