نتایج جستجو برای: photosynthetic pigment

تعداد نتایج: 46663  

2011
Zhanyu Liu Wenjiang Huang Guofu Mao Cunjun Li Xingang Xu Xiaodong Ding Jingjing Shi Bin Zhou

Photosynthetic pigment concentration has strong relationship with nitrogen (N) concentration which is an essential element of plant growth and plays an important role in estimating the net primary productivity (NPP) in terrestrial ecosystem research and precision agriculture (PA). In this study, hyperspectral reflectance and pigment concentration of the upper three leaves of rice crop (Oryza sa...

Journal: :PLoS ONE 2009
Stefan Spring Heinrich Lünsdorf Bernhard M. Fuchs Brian J. Tindall

BACKGROUND There is accumulating evidence that in some marine environments aerobic bacteriochlorophyll a-producing bacteria represent a significant part of the microbial population. The interaction of photosynthesis and carbon metabolism in these interesting bacteria is still largely unknown and requires further investigation in order to estimate their contribution to the marine carbon cycle. ...

Journal: :Annals of botany 2009
T Pfannschmidt K Bräutigam R Wagner L Dietzel Y Schröter S Steiner A Nykytenko

BACKGROUND Photosynthetic electron transport is performed by a chain of redox components that are electrochemically connected in series. Its efficiency depends on the balanced action of the photosystems and on the interaction with the dark reaction. Plants are sessile and cannot escape from environmental conditions such as fluctuating illumination, limitation of CO(2) fixation by low temperatur...

2013
Peter Böger K. J. Kunert

Treatment of microalgae (B um illeriopsis) with paraquat (l,l-dimethyl-4,4-dipyridylium dichlo­ ride) under culture conditions in the light for 20 or 160 h leads to light-induced oxygen uptake and more or less severe chlorophyll bleaching, which is accompanied by formation of malondialdehyde. The ratio of chlorophyll to packed chloroplast volume remains about the same as that of the control, pr...

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