The Effects of Nitrogen Deficiency on Pigments and Lipids of Cyanobacteria | Zendy

Isabel Canto de Loura | Zendy; J.P. Dubacq | Zendy; Jean Claude Thomas | Zendy

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The Effects of Nitrogen Deficiency on Pigments and Lipids of Cyanobacteria

Author(s) -

Isabel Canto de Loura,

J.P. Dubacq,

Jean Claude Thomas

Publication year - 1987

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.83.4.838

Subject(s) - cyanobacteria , phycobiliprotein , phycocyanin , nitrogen deficiency , diacylglycerol kinase , carotenoid , biology , biochemistry , phosphatidylglycerol , pigment , botany , chemistry , nitrogen , bacteria , phospholipid , enzyme , phosphatidylcholine , genetics , organic chemistry , protein kinase c , membrane

In contrast to what happens in higher plants and eukaryotic algae, a nitrogen deficiency during growth causes a change in pigment composition but no significant changes in whole cell lipid and fatty acid composition of the two Cyanobacteria, Pseudanabaena sp. (strain M2) and Oscillatoria splendida (strain L3). Nitrogen deficiency does not affect the cellular content in chlorophyll a, but it causes a selective loss in phycobiliproteins; carotenoid content increases with phycocyanin depletion. The major cellular lipids in both Cyanobacteria studied are monogalactosyl diacylglycerol, digalactosyl diacylglycerol, sulfoquinovosyl diacylglycerol, and phosphatidylglycerol. The fatty acid composition is particularly interesting as both these filamentous Oscillatoriaceae show important contents in alpha- and gamma-linolenic (18:3) and parinaric (18:4) acids. This seems to be very unusual in Cyanobacteria.

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