Results 21 to 30 of about 47,535 (285)
Biologia 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
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Synthesis and potential use of 1,8-naphthalimide type O-1(2) sensor molecules [PDF]
, 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
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Effects of spine-shading on aspects of photosynthesis for three cactus species
Botanical 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
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A kinetic model of non-photochemical quenching in cyanobacteria
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2011 High light poses a threat to oxygenic photosynthetic organisms. Similar to eukaryotes, cyanobacteria evolved a photoprotective mechanism, non-photochemical quenching (NPQ), which dissipates excess absorbed energy as heat. An orange carotenoid protein (OCP) has been implicated as a blue-green light sensor that induces NPQ in cyanobacteria. Discovered in
Gorbunov, Maxim Y. +4 more
openaire +2 more sources
Operation of photosynthetic apparatus of citrus leaves in winter and spring
浙江大学学报. 农业与生命科学版, 2006 Optimum temperature for photosynthesis of citrus leaves planted in field was lower in winter than in spring, and it was higher than environmental temperature in winter.
ZENG Guang-hui +3 more
doaj +1 more source
Models and measurements of energy-dependent quenching. [PDF]
, 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
Remote Sensing, 2017 In order to estimate vegetation photosynthesis from remote sensing observations; some critical parameters need to be quantified. From all absorbed light; the plant needs to release any excess that is not used for photosynthesis; by non-photochemical ...
Luis Alonso +5 more
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Plants, 2021 Aims: to discover the interrelationship between growth, protection and photosynthesis induced by Pseudomonas fluorescens N21.4 in tomato (Lycopersicum sculentum) challenged with the leaf pathogen Xanthomonas campestris, and to define its priming ...
Ana García-Villaraco +4 more
doaj +1 more source
Knock-Out of the Genes Coding for the Rieske Protein and the ATP-Synthase δ-Subunit of Arabidopsis [PDF]
, 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
Photochemical and photoelectrochemical quenching of chlorophyll fluorescence in photosystem II
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2009 This paper deals with kinetics and properties of variable fluorescence in leaves and thylakoids upon excitation with low intensity multi-turnover actinic light pulses corresponding with an excitation rate of about 10 Hz. These show a relatively small and amply documented rise in the sub-s time range towards the plateau level F(pl) followed by a delayed
Vredenberg, W.J. +2 more
openaire +3 more sources