Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/2094

Title

Two species of culturable bacteria associated with degradation of brown algae Fucus Evanescens

Author(s)

Alekseeva, Yulia V.;  Alexeeva, Yulia V.;  Bakunina, Irina Y.;  Hayashi, Karin;  Ivanova, Elena P.;  Mikhailov, Valery V.;  Nicolau, Dan V.;  Sawabe, Tomoo;  Zhukova, Natalia V.;  Zvaygintseva, Tatiyana N.

Abstract

The heterotrophic microbial enrichment community established during degradation of brown algae Fucus evanescens was characterized. A two-species bacterial community of marine culturable gamma-proteobacteria consisted of Pseudoalteromonas and Halomonas. The first member of the community, Pseudoalteromonas sp., was highly metabolically active, had bacteriolytic and hemolytic activities, produced proteinases (gelatinase and caseinase), lipases, DNases, and fucoidanhydrolases, laminaranases, alginases, pustulanases, beta-glucosidases, beta-galactosidases, beta-N-acetylglucosaminidases, and beta-xylosidases. The second member of the community, Halomonas marina, produced only caseinase and DNase, and it did not hydrolyze algal polysaccharides. Both members of the studied bacterial community utilized a range of easily assimilable monosaccharides and other low molecular weight organic substances. The results provide an evidence of the complex metabolic interrelations between two members of this culturable community. One of them Pseudoalteromonas sp., most likely plays the major role in the initial stages of algal degradation; the other one, H. marina, resistant to the bacteriolytic activity of the former, is able to utilize the products of degradation of polysaccharides.

Publication type

Journal article

Research centre

Swinburne University of Technology. Industrial Research Institute Swinburne

Source

Microbial ecology, Vol. 43, no. 2 (Feb. 2002), pp. 242-249

Publication year

2002

Publisher

Springer-Verlag New York

Format

pp. 242-249

ISSN

0095-3628

Publisher URL

http://dx.doi.org/10.1007/s00248-001-1011-y

Copyright

© 2002 Springer-Verlag, New York Inc.

Peer reviewed