Plant growth regulatory metabolites from novel actinomycetes

Metabolites from 796 isolates of aerobic actinomycetes were screened for plant growth regulatory properties using an algal bioassay. These included 266 isolates of Streptomyces, 28 unidentified actinomycetes, and 502 isolates of "novel" actinomycetes represented by 18 genera. Algal growth...

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Bibliographic Details
Published in:Journal of plant growth regulation 1987-01, Vol.6 (2), p.75-84
Main Authors: Mishra, S.K, Taft, W.H, Putnam, A.R, Ries, S.K
Format: Article
Language:English
Subjects:
ACTINOMYCETALE
ACTINOMYCETALES
Agronomy. Soil science and plant productions
Animal, plant and microbial ecology
BIOLOGIA DEL SUELO
Biological and medical sciences
BIOLOGIE DU SOL
Chemical, physicochemical, biochemical and biological properties
Economic plant physiology
ESTIMULANTES DEL CRECIMIENTO
Fundamental and applied biological sciences. Psychology
Growth and development
Growth regulators
METABOLITE
METABOLITES
METABOLITOS
MICHIGAN
Microbial ecology
Physics, chemistry, biochemistry and biology of agricultural and forest soils
PLANT GROWTH SUBSTANCES
Soil
SOIL BIOLOGY
Soil science
Streptomyces
SUBSTANCE DE CROISSANCE VEGETALE
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Summary:Metabolites from 796 isolates of aerobic actinomycetes were screened for plant growth regulatory properties using an algal bioassay. These included 266 isolates of Streptomyces, 28 unidentified actinomycetes, and 502 isolates of "novel" actinomycetes represented by 18 genera. Algal growth inhibition of greater than or equal to 30% was observed with 60 isolates, 37 of which belonged to the genus Streptomyces Among other inhibitors were 8 isolates of Actinomadura , 6 of Actinoplanes , 2 each of the genera Thermomonospora, Streptoverticillium , and Promicromonospora and 3 unidentified. Metabolites from 70 isolates promoted algal growth by greater than or equal to 20%.
ISSN:0721-7595
1435-8107
DOI:10.1007/bf02026457