Adaptation of the Cyanobacterium Microcystis aeruginosa to Light Intensity | Zendy

Shirley Raps | Zendy; Kevin Wyman | Zendy; H. W. Siegelman | Zendy; Paul G. Falkowski | Zendy

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Adaptation of the Cyanobacterium Microcystis aeruginosa to Light Intensity

Author(s) -

Shirley Raps,

Kevin Wyman,

H. W. Siegelman,

Paul G. Falkowski

Publication year - 1983

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.72.3.829

Subject(s) - microcystis aeruginosa , photosynthesis , phycocyanin , light intensity , chlorophyll a , adaptation (eye) , biology , botany , microcystis , chlorophyll , cyanobacteria , algae , bacteria , optics , genetics , physics , neuroscience

Light intensity adaptation (20 to 565 microeinsteins per square meter per second) of Microcystis aeruginosa (UV-027) was examined in turbidostat culture. Chlorophyll a and phycocyanin concentrations decreased with increasing light intensity while carotenoid, cellular carbon, and nitrogen contents did not vary. Variation in the number but not the size of photosynthetic units per cell, based on chlorophyll a/P(700) ratios, occurred on light intensity adaptation. Changes in the numbers of photosynthetic units partially dampened the effects of changes in light intensity on growth rates.

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