Content of different phytohormones and indole acetic acid metabolism in root nodules of Derris scandens BENTH

✍ Scribed by P. S. De; Prof. Dr. P. S. Basu

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 372 KB
• Volume: 36
• Category: Article
• ISSN: 0233-111X
• DOI: 10.1002/jobm.3620360502

✦ Synopsis

Root nodules of Derris scandens BENTH., an economic leguminous climbing shrub, contain high amount of IAA, gibberellin like (GA), cytokinin like (CK) and abscisic acid like (ABA) substances. Atryptophan pool present in the nodule may serve as a source of IAA production. Metabolism of IAA in the nodules was evidenced by the presence of IAA metabolising enzymes, IAA oxidase and peroxidase. The symbiont from the nodules, a Rhizobiurn sp., produced high amount of IAA in culture when supplemented with tryptophan. For IAA production the bacteria preferred L-tryptophan to DL-or D-isomers of tryptophan.