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Physiological and biochemical characteristics of fast‐and slow‐growing Rhizobium sp. pigeonpea ( Cajanus cajan )
Author(s) -
Anand R.C.,
Dogra B.C.
Publication year - 1991
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1991.tb02924.x
Subject(s) - cajanus , pentose phosphate pathway , citric acid cycle , pentose , rhizobium , glycolysis , tricarboxylic acid , phosphate , chemistry , biochemistry , biology , metabolism , agronomy , fermentation , gene
Thirty‐two of 38 cultures isolated from the nodules of pigeonpea plants were rapid growers. The generation time of rapid growers varied from 0·71 to 1·31 h and slow growers from 7·7 to 9·9 h. Rapid growers oxidized pentoses, hexoses, polyhydric alcohols (except dulcitol), tricarboxylic acid cycle intermediates (except citrate) and disaccharides more rapidly than slow growers; disaccharides were not oxidized by any of the slow growers. The Embden‐Meyerhof‐Parnas and Entner‐Doudoroff pathways and the tricarboxylic acid cycle were present in both rapid and slow growers, whereas the pentose‐phosphate pathway was present only in rapid growers.