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Kandasamy Kathiresan, M. Masilamani Selvam

Evaluation of beneficial bacteria from mangrove soil

Keywords: Azotobacter vinelandii, Bacillus megaterium, mangroves, rhizosphere bacteria

This paper describes some bacteria found on mangrove roots and their potential in promoting mangrove seedling growth. Forty-eight bacterial strains were isolated from rhizosphere soil of a mangrove species (Rhizophora mucronata). The strains were analyzed for their ability to (a) fix nitrogen, (b) solubilize phosphate, (c) produce ammonia and (d) produce the plant growth hormone (IAA); we also tested the effects of strains on shoot growth of R. mucronata. Two strains which doubled the growth of mangrove seedlings were identified as Azotobacter vinelandii and Bacillus megaterium. This raises the possibility of using the bacterial species to enhance the growth of mangrove seedlings.

Botanica Marina, Walter de Gruyter

Print ISSN: 0006-8055
Volume: 49, 02/2006
Pages: 86 - 88

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