Adaptation of the cyanobacterium Microcystis aeruginosa to light intensity

Journal Article · Sat Jan 01 04:00:00 EST 1983 · Plant Physiol.; (United States)

DOI:https://doi.org/10.1104/pp.72.3.829· OSTI ID:6833036

Raps, S; Wyman, K; Siegelman, H W; Falkowski, P G

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/sub 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.

• Research Organization: Brookhaven National Lab., Upton, NY
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6833036
• Journal Information: Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 72; ISSN PLPHA
• Country of Publication: United States
• Language: English

Related Subjects

550500 -- Metabolism
550700* -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
BIOLOGICAL ADAPTATION
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
CHLOROPHYLL
CONTINUOUS CULTURE
CYANOBACTERIA
ELECTROMAGNETIC RADIATION
GROWTH
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
MICROORGANISMS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PHOTOSYNTHETIC BACTERIA
PHYCOCYANIN
PHYTOCHROMES
PIGMENTS
PLANT GROWTH
PORPHYRINS
QUANTITY RATIO
RADIATIONS
SYNTHESIS
VISIBLE RADIATION