Accumulation of trehalose and sucrose in cyanobacteria exposed to matric water stress

Journal Article · Fri Mar 01 00:00:00 EST 1991 · Applied and Environmental Microbiology; (United States)

OSTI ID:5319664

Hershkovitz, N; Oren, A; Cohen, Y ^[1]

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1. Hebrew Univ. of Jerusalem (Israel)

The drought-resistant cyanobacteria Phormidium autumnale, strain LPP{sub 4}, and a Chroococcidiopsis sp. accumulated trehalose, sucrose, and both trehalose and sucrose, respectively, in response to matric water stress. Accumulated sugar concentrations reached values of up to 6.2 {mu}g of trehalose per {mu}g of chlorophyll in P. autumnale, 6.9 {mu}g of sucrose per {mu}g of chlorophyll in LPP{sub 4}, and 4.1 {mu}g of sucrose and 3.2 {mu}g of trehalose per {mu}g of chlorophyll in the Chroococcidiopsis sp. The same sugars were accumulated by these cyanobacteria in similar concentrations under osmotic water stress. Cyanobacteria that did not show drought resistance (Plectonema boryanum and Synechococcus strain PCC 7942) did not accumulate significant amounts of sugars when matric water stress was applied.

• OSTI ID: 5319664
• Journal Information: Applied and Environmental Microbiology; (United States), Vol. 57:3; ISSN 0099-2240
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
09 BIOMASS FUELS
CYANOBACTERIA
BIOLOGICAL ADAPTATION
DISACCHARIDES
BIOSYNTHESIS
DROUGHTS
BIOLOGICAL EFFECTS
BIOLOGICAL STRESS
CARBOHYDRATES
MICROORGANISMS
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
SACCHARIDES
SYNTHESIS
540210* - Environment
Terrestrial- Basic Studies- (1990-)
090900 - Biomass Fuels- Processing- (1990-)