Now showing items 1-10 of 28
Chlorophyll fluorescence response of Pinus radiata clones to nitrogen and phosphorus supply
(Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal, 2009)
Natural isoforms of the Photosystem II D1 subunit differ in photoassembly efficiency of the water-oxidizing complex
Oxygenic photosynthesis efficiency at increasing solar flux is limited by light-induced damage (photoinhibition) of Photosystem II (PSII), primarily targeting the D1 reaction center subunit. Some cyanobacteria contain two ...
Effects of low temperature acclimation on photosynthesis in three Chilean Proteaceae
(Sociedad de Biología de Chile, 2008)
Antioxidant protection and PSII regulation mitigate photo-oxidative stress induced by drought followed by high light in cashew plants
We tested the hypothesis that effective antioxidant and photoprotective mechanisms are able to avoid photodamage induced by prolonged water deficit (WD) followed by high light (HL). We employed cashew plants (Anacardium ...
Trocas gasosas e eficiência fotoquímica de cultivares de algodoeiro herbáceo sob aplicação de silício foliar
(Univ Estadual Londrina, 2014-01-01)
The objective of this study was to evaluate gas exchange and photochemical efficiency of cotton cultivars under leaf application of silicon. Therefore, the experiment was conducted in a completely randomized in a factorial ...
Photochemical heat-shock response in common bean leaves as affected by previous water deficit
(MAIK NAUKA/INTERPERIODICA/SPRINGER, 2008)
The heat sensitivity of photochemical processes was evaluated in the common bean (Phaseolus vulgaris) cultivars A222, A320, and Carioca grown under well-watered conditions during the entire plant cycle (control treatment) ...
Assessing the role of vertical leaves within the photosynthetic function of Styrax camporum under drought conditions
Previous evidence has demonstrated that vertical leaves of Styrax camporum, a woody shrub from the Brazilian savanna, have a higher net photosynthetic rate (P (N)) compared with horizontal leaves, and that it is detected ...
Physiological and biochemical responses of photomorphogenic tomato mutants (cv. Micro-Tom) under water withholding
In addition to mediating photomorphogenesis, phytochromes are responsible for many abiotic stress responses, acting upon biochemical and molecular mechanisms of cell signaling. In this work, we measured the physiological ...
Responses of chlorophyll fluorescence parameters of the facultative halophyte and C-3-CAM intermediate species Mesembryanthemum crystallinum to salinity and high irradiance stress
(Elsevier B.V., 2007-07-01)
Mesembryanthemum crystallinum L. (Aizoaceae) is a facultative annual halophyte and a C-3-photosynthesis/crassulacean acid metabolism intermediate species currently used as a model plant in stress physiology. Both salinity ...
Photosynthetic gas exchange, chlorophyll fluorescence and some associated metabolic changes in cowpea (Vigna unguiculata) during water stress and recovery
(Pergamon-elsevier Science LtdOxfordInglaterra, 2004)