Results 21 to 30 of about 41,447 (280)

Non-Photochemical Quenching. A Response to Excess Light Energy [PDF]

open access: yesPlant Physiology, 2001
Plants and algae have a love/hate relationship with light. As oxygenic photoautotrophic organisms, they require light for life; however, too much light can lead to increased production of damaging reactive oxygen species as byproducts of photosynthesis.
P, Müller, X P, Li, K K, Niyogi
openaire   +2 more sources

Analysis of initial chlorophyll fluorescence induction kinetics in chloroplasts in terms of rate constants of donor side quenching release and electron trapping in photosystem II [PDF]

open access: yes, 2008
The fluorescence induction F(t) of dark-adapted chloroplasts has been studied in multi-turnover 1 s light flashes (MTFs). A theoretical expression for the initial fluorescence rise is derived from a set of rate equations that describes the sequence of ...
Vredenberg, W.J.
core   +2 more sources

Models and measurements of energy-dependent quenching. [PDF]

open access: yes, 2013
Energy-dependent quenching (qE) in photosystem II (PSII) is a pH-dependent response that enables plants to regulate light harvesting in response to rapid fluctuations in light intensity.
Amarnath, Kapil   +3 more
core   +1 more source

Characteristics of gas exchange and chlorophyll fluorescence in red and green leaves of Begonia semperflorens

open access: yesBiologia Plantarum, 2011
To determine the effects of leaf colour on gas exchange and chlorophyll fluorescence, two genotypes of Begonia semperflorens with green leaves or red leaves were compared.
K. M. Zhang   +6 more
doaj   +1 more source

Synthesis and potential use of 1,8-naphthalimide type O-1(2) sensor molecules [PDF]

open access: yes, 2013
New double (fluorescent and spin) sensor molecules containing 4-amino substituted 1,8-naphthalimide as a fluorophore and a sterically hindered amine (pre-nitroxide) or pyrroline nitroxide as a quencher and radical capturing moiety were synthesized.
Bognár   +41 more
core   +1 more source

Comparison of drought stress response and gene expression between a GM maize variety and a near-isogenic non-GM variety [PDF]

open access: yes, 2015
Maize MON810, grown and commercialised worldwide, is the only cultivated GM event in the EU. Maize MON810, variety DKC6575, and the corresponding near-isogenic line Tietar were studied in different growth conditions, to compare their behaviour in ...
Fusaro, Lina   +5 more
core   +7 more sources

Effects of spine-shading on aspects of photosynthesis for three cactus species

open access: yesBotan‪ical Sciences, 2016
We evaluated the effect of spine removal on three cactus species varying in spine-shading of stems. Turbinicarpus schmiedickeanus showed the greater spine shading (c. 61 %), followed by Mammillaria zephyranthoides (43 %), and Echinocactus platyacanthus (
Edilia de la Rosa-Manzano   +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.
Dietzmann, Angela   +8 more
core   +1 more source

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