Production of Extracellular Polysaccharide by aRhizobium Species from Root Nodules of the Leguminous TreeDalbergia lanceolaria

Autor:	P. S. Basu, S. Ghosh, A. C. Ghosh
Rok vydání:	2005
Předmět:	Arabinose chemistry.chemical_classification Environmental Engineering Root nodule Rhamnose Bioengineering Xylose Biology Polysaccharide biology.organism_classification chemistry.chemical_compound chemistry Botany Yeast extract Rhizobium Dalbergia lanceolaria Biotechnology
Zdroj:	Engineering in Life Sciences. 5:378-382
ISSN:	1618-2863 1618-0240
DOI:	10.1002/elsc.200500087
Popis:	The ability of the Rhizobium D1 10 species, which was isolated from the root nodules of the leguminous forest tree Dalbergia lanceolaria, for the production of extracellular polysaccharides (EPS) was investigated. High amounts of EPS (765 μg/mL) were produced by the bacteria (Rhizobium D1 10) in yeast extract mannitol medium. Both growth and EPS production started simultaneously, but the EPS production was at its maximum in the stationary phase of growth at 32 h. The EPS production was maximal when the medium was supplemented with mannitol (2 %), thiamine hydrochloride (1 μg/mL) and KNO3 (0.1 %), which was accompanied by a great increase in the production compared to the control. The EPS contained xylose, rhamnose, glucose, galactose and arabinose. The possible role of rhizobial EPS production in root nodule symbiosis is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0016d758ba3bdab6ed8d5b5b282355a0 https://doi.org/10.1002/elsc.200500087 Zobrazit plný text záznamu