ROLE OF AMINOTRANSFERASE AND INDOLE-3-PYRUVIC ACID IN THE SYNTHESIS OF INDOLE-3-ACETIC ACID IN PSEUDOMONAS SAVASTANOI
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منابع مشابه
New insights into the role of indole-3-acetic acid in the virulence of Pseudomonas savastanoi pv. savastanoi.
Indole-3-acetic acid (IAA) is a widespread phytohormone among plant-associated bacteria, including the tumour-inducing pathogen of woody hosts, Pseudomonas savastanoi pv. savastanoi. A phylogenetic analysis of the iaaM/iaaH operon, which is involved in the biosynthesis of IAA, showed that one of the two operons encoded by Pseudomonas savastanoi pv. savastanoi NCPPB 3335, iaaM-1/iaaH-1, is horiz...
متن کاملMicrobial synthesis and degradation of indole-3-acetic acid. I. The conversion of L-tryptophan to indole-3-acetamide by an enzyme system from Pseudomonas savastanoi.
An enzyme which catalyzes the conversion of L-tryptophan to indole-3-acetamide has been isolated from cells of Pseudomonas savastanoi and purified 89-fold. The enzyme catalyzes a reaction in which 1 mole of L-tryptophan and 1 mole of 02 are consumed and 1 mole of indole-3-acetamide and 1 mole of CO2 are produced. The enzyme has a pH optimum between 7.2 and 9.2. It is specific for the L isomer o...
متن کاملIndole-3-Acetic Acid and Flowering.
Science, a weekly journal, Is published each Friday by the American Association for the Advancement of Science at The Business Press, Incorporated, N. Queen St. and McGovern Ave., Lancaster, P'a. Founded In 1880. it has been since 1900 the official publication of the AAAS. Editorial and Advertising Offices, 1515 Massachusetts Avenue, N.W.. Washington 5, D. C. Telephone, EXecutive 80 or 661. Cab...
متن کاملConversion of indole-3-ethanol to indole-3-acetic Acid in cucumber seedling shoots.
Indoleethanol-(14)C was applied to intact cucumber seedlings and to hypocotyl segments. The presence of indoleacetic acid-(14)C in tissue extracts was demonstrated by thin layer radiochromatography. There was no evidence of conversion of indoleacetic acid to indoleethanol. It is suggested that the growth-promoting activity of indoleethanol is due to its conversion to indoleacetic acid.
متن کاملAromatic amino acid aminotransferase activity and indole-3-acetic acid production by associative nitrogen-fixing bacteria.
In this work, we report the detection of aromatic amino acid aminotransferase (AAT) activity from cell-free crude extracts of nine strains of N(2)-fixing bacteria from three genera. Using tyrosine as substrate, AAT activity ranged in specific activity from 0.084 to 0.404 micromol min(-1)mg(-1). When analyzed under non-denaturating PAGE conditions; and using tryptophan, phenylalanine, tyrosine, ...
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ژورنال
عنوان ژورنال: The Journal of General and Applied Microbiology
سال: 1970
ISSN: 1349-8037,0022-1260
DOI: 10.2323/jgam.16.3_191