ISSN:
1432-072X
Keywords:
Alkaline phosphatase
;
Continuous culture
;
Periplasmic proteins
;
Phosphate uptake
;
Phosphorus nutrition
;
Rhizobium
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Lysozyme/EDTA treatment of four fast-growing rhizobia released repeatable protein profiles after polyacrylamide slab gel electrophoresis. Similar treatment of slow-growing rhizobia failed to release such periplasmic proteins. For the four-fast-growing rhizobia, both P-repressible and P-inducible protein bands occurred. The only P-repressible protein identified was alkaline phosphatase, which showed strain differences in both electrophoretic mobility and activation by Mg2+. The derepression of the P-repressible periplasmic proteins in cowpea Rhizobium NGR234 correlated with derepression of both phosphate and glycerol 1-phosphate uptake.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00454944
