๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Salt tolerance of Rhizobium species in broth cultures

โœ Scribed by Dr. A. M. Abdel Wahab; H. H. Zahran

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
272 KB
Volume
19
Category
Article
ISSN
0233-111X

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โœฆ Synopsis

Salt tolerance of five rhizobia strains was examined in broth cultures. Five levels of SaCl concentration were used and the optiral density was taken as a measure for the vigoiir of bacterial growth.

Rhizobium leguminosnrum and R. meliloti were tolerant to high levels of salinity and grov t h rurves in saline broth showed a similar pattern to the control level.

Rhizobium japonicum, uoRpea Rhizobiuna, and R . trifolii were intolerant to salt and showed a strong grou t h retardation with increasing salt concentration. Growth Has inhibited a t high levels of salinity. It is suggested that rhizobia sensitivity to salts may be partly responsible to the inhibition of nitrogen fixation by legumes groaing under salt stress.

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