Chitin-Decomposing Actinomycetes Associated with a Vesicular-Arbuscular Mycorrhizal Fungus from a Calcareous Soil

Spores of Glomus macrocarpum Tul. & Tul. were sieved from a calcareous, silty clay loam soil, washed in sterile water, and plated on chitin agar for the isolation of actinomycetes. Of the 190 spores examined, 100 were colonized by one or more chitin-decomposing microorganisms: 82% were colonized...

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Published inThe New phytologist Vol. 111; no. 1; pp. 67 - 71
Main Authors Ames, R. N., Mihara, K. L., Bayne, H. G.
Format Journal Article
LanguageEnglish
Published Oxford, UK Cambridge University Press 01.01.1989
Blackwell Publishing Ltd
Subjects
Actinomycetes
Bacterial spores
Calcareous soils
Chitin
Fungal spores
Fungi
Microorganisms
Mycorrhizal fungi
Nocardia
Soil fungi
Soil microorganisms
Streptomyces
Streptoverticillium
vesicular‐arbuscular mycorrhiza
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Summary:Spores of Glomus macrocarpum Tul. & Tul. were sieved from a calcareous, silty clay loam soil, washed in sterile water, and plated on chitin agar for the isolation of actinomycetes. Of the 190 spores examined, 100 were colonized by one or more chitin-decomposing microorganisms: 82% were colonized by actinomycetes, 17% by bacteria, and 1% by fungi. Fifty-one actinomycete isolates were classified on the basis of morphological, cultural and biochemical criteria. Tentative identifications to genera and numbers of different isolates are as follows: Streptomyces (29); Nocardia (3); Streptosporangium (1); Streptoverticillium (1); Intrasporangium (1); Nocardiodes (1); and unidentified (15). This is the first study to report the prevalence and diversity of chitin-decomposing actinomycetes associated with spores of a vesicular-arbuscular mycorrhizal fungus in field soil.
Bibliography:Peninsu‐Lab, P.O. Box 3000, Kingston WA 98346 USA.
ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0028-646X
1469-8137
DOI:10.1111/j.1469-8137.1989.tb04219.x