Abstract
Profiles of phospholipid fatty acids and carotenoids in desiccated Nostoc commune (cyanobacteria) collected from China, Federal Republic of Germany, and Antarctica and in axenic cultures of the desiccation-tolerant strains N. commune UTEX 584 and Hydrocoleum strain GOEI were analyzed. The phospholipid fatty acid contents of the three samples of desiccated Nostoc species were all similar, and the dominant compounds were 16:1ω7c, 16:0, 18:2ω6, 18:3ω3, and 18:1ω7c. In comparison with the field materials, N. commune UTEX 584 had a much higher ratio of 18:2ω6 to 18:3ω3 (5.36) and a significantly lower ratio of 18:1ω7c to 18:1ω9c (1.86). Compound 18:3 was present in large amounts in the samples of desiccated Nostoc species which had been subject, in situ, to repeated cycles of drying and rewetting, but represented only a small fraction of the total fatty acids of the strains grown in liquid culture. This finding is in contrast to the data obtained from studies on the effects of drought and water stress on higher plants. Field materials of Nostoc species contained, in contrast to the axenic strains, significant amounts of apocarotenoids and a P384 pigment which, upon reduction with NaBH4, yielded a mixture of a chlorophyll derivative and a compound with an absorption maximum of 451 nm. A clear distinction can be made between the carotenoid contents of the axenic cultures and the desiccated field materials. In the former, β-carotene and echinenone predominate; in the latter, canthaxanthin and the β-γ series of carotenoids are found.
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Selected References
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- Angeloni S. V., Potts M. Polysome turnover in immobilized cells of Nostoc commune (cyanobacteria) exposed to water stress. J Bacteriol. 1986 Nov;168(2):1036–1039. doi: 10.1128/jb.168.2.1036-1039.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Biel A. J., Marrs B. L. Oxygen does not directly regulate carotenoid biosynthesis in Rhodopseudomonas capsulata. J Bacteriol. 1985 Jun;162(3):1320–1321. doi: 10.1128/jb.162.3.1320-1321.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Bullerjahn G. S., Sherman L. A. Identification of a carotenoid-binding protein in the cytoplasmic membrane from the heterotrophic cyanobacterium Synechocystis sp. strain PCC6714. J Bacteriol. 1986 Jul;167(1):396–399. doi: 10.1128/jb.167.1.396-399.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Jürgens U. J., Weckesser J. Carotenoid-containing outer membrane of Synechocystis sp. strain PCC6714. J Bacteriol. 1985 Oct;164(1):384–389. doi: 10.1128/jb.164.1.384-389.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kenyon C. N., Rippka R., Stanier R. Y. Fatty acid composition and physiological properties of some filamentous blue-green algae. Arch Mikrobiol. 1972;83(3):216–236. doi: 10.1007/BF00645123. [DOI] [PubMed] [Google Scholar]
- Olie J. J., Potts M. Purification and Biochemical Analysis of the Cytoplasmic Membrane from the Desiccation-Tolerant Cyanobacterium Nostoc commune UTEX 584. Appl Environ Microbiol. 1986 Oct;52(4):706–710. doi: 10.1128/aem.52.4.706-710.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Potts M. Protein synthesis and proteolysis in immobilized cells of the cyanobacterium Nostoc commune UTEX 584 exposed to matric water stress. J Bacteriol. 1985 Dec;164(3):1025–1031. doi: 10.1128/jb.164.3.1025-1031.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Stewart R. R., Bewley J. D. Stability and Synthesis of Phospholipids during Desiccation and Rehydration of a Desiccation-Tolerant and a Desiccation-Intolerant Moss. Plant Physiol. 1982 Mar;69(3):724–727. doi: 10.1104/pp.69.3.724. [DOI] [PMC free article] [PubMed] [Google Scholar]