Trichoderma populations from alkaline agricultural soil in the Nile valley, Egypt, consist of only two species

The biodiversity of Trichoderma was studied in the Northern half of the Nile valley in Egypt. 20 strains were isolated from 9 different geographic locations, representing 19 different habitats, all with a pH between 7.3 and 8.4. Only T. harzianum (three ITS1/2 haplotypes and three RAPD-genotypes) an...

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Bibliographic Details
Published in:	Mycological progress Vol. 3; no. 3; pp. 211 - 218
Main Authors:	Gherbawy, Youssuf, Druzhinina, Irina, Shaban, Gihan M., Wuczkowsky, Michael, Yaser, Manal, El-Naghy, Mohamed A., Prillinger, Hans-Jörg, Kubicek, Christian P.
Format:	Journal Article
Language:	English
Published:	Heidelberg Springer Nature B.V 01-08-2004
Subjects:	Agricultural history Agricultural land Genotypes Haplotypes Soil types Trichoderma
Online Access:	Get full text
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Summary:	The biodiversity of Trichoderma was studied in the Northern half of the Nile valley in Egypt. 20 strains were isolated from 9 different geographic locations, representing 19 different habitats, all with a pH between 7.3 and 8.4. Only T. harzianum (three ITS1/2 haplotypes and three RAPD-genotypes) and the anamorph of Hypocrea orientalis were found. One of the T. harzianum haplotypes (4 strains) is new. The occurrence of T. harzianum haplotypes and of H. orientalis appeared to be essentially independent of the habitat (pH, plant, soil type), and also did not correlate with biochemical properties (cellulase and chitinase activity) of the individual strains. These two taxa seem to be indigenous to the Nile valley, their presence not being influenced by the agricultural history of the soils.[PUBLICATION ABSTRACT]
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1617-416X 1861-8952
DOI:	10.1007/s11557-006-0091-y