International Journal of Soil Science1816-4978xxxx-xxxxAcademic Journals Inc.10.3923/ijss.2008.28.34Rhizobium strains
from Sesbania sesban (L.) Merr.]]>SrideviM. MallaiahK.V. 1200831Twenty six Rhizobium strains isolated from root nodules of Sesbania
sesban (L.) Merr. were screened for their ability to produce siderophores.
Among the twenty six strains, twenty strains produced hydroxamate-type
of siderophores in Fiss-glucose mineral medium. The maximum amount of
siderophore was produced by Rhizobium strain 22. The production
of siderophore started at 8 h and reached maximum after 24 h. The addition
of limited amount of iron in the media increased growth as well as siderophore
production. Fiss-glucose mineral medium supplemented with 1% sucrose and
0.1% (NH4)2SO4 increased siderophore
production. UV-spectrophotometric scanning of purified siderophore showed
absorption maxima in the range of 500-520 nm and indicating that it belongs
to dihydroxamate-type of siderophore. Tryptophan and tyrosine were identified
as conjugated amino acids of the purified siderophore. The outer membrane
protein profiles of the Rhizobium strain 22 grown in high iron
containing medium revealed an unique protein band of molecular mass 45
kDa.]]>Arnow, L.E.,1937118531535Atkin, C.L., J.B. Neilands and H.J. Phaff,1970Leucosporidium, Rhodosporidium, Rhodotorula, Sporidiobolum and Sporobolomyces and a new alanine-containing ferrichrome from Cryptococcus melibiosum.]]>103722733Carson, K.C., J. Meyer and M.J. Dilworth,200251121Filip, C., G. Fletcher, J.L. Wulf and C.F. Eartharst,1973Escherichia coli by the ionic detergent sodium-lauryl sarcosinate.]]>115717722Gibson, F. and D.I. McGrath,1969Aerobacter aerogenes 62-1.]]>192175184Jalal, M.A.F. and D. Vander Helm,19911991pp: 235-269pp: 235-269Jordan, D.C.,19841984pp: 234-240pp: 234-240Laemmli, U.K.,1970227680685Mandal, S.M., K.C. Mondal, S. Dey and B.R. Pati,2007Rhizobium sp. isolated from root nodules of Vigna mungo (L.) Hepper.]]>2239246Neiland, J.B.,198150715731Reigh, G. and M. O'Connell,1993Rhizobium meliloti.]]>17594102Vellore, J.,2001Rhodococcis erythropolis strain IGTS8: Isolation of a non-siderophore producing mutant.]]>2001Vincent, J.M.,1970IBP Handbook No. 15,Pages: 164Pages: 164