Sugar beet-associated bacterial and fungal communities show a high indigenous antagonistic potential against plant pathogens

Christin Zachow, R Tilcher, Gabriele Berg

Publikation: Beitrag in einer FachzeitschriftArtikel

Abstract

The aim of this study was to analyze microbial communities in/on sugar beet with special focus on antagonists toward plant pathogens. For this purpose, the composition of microorganisms isolated from the rhizosphere, phyllosphere, endorhiza, and endosphere of field-grown sugar beet plants was analyzed by a multiphasic approach at three different plant development stages at six locations in Europe. The analysis of microbial communities by Single Strand Conformation Polymorphism (SSCP) of 16S/18S rRNA clearly revealed the existence of discrete microenvironment- and site-specific patterns. A total of 1952 bacterial and 1344 fungal isolates screened by dual testing for antagonism toward the pathogens Aphanomyces cochlioides, Phoma betae, Pythium ultimum, and Rhizoctonia solani resulted in 885 bacterial (=45%) and 437 fungal (=33%) antagonists. In general, the indigenous antagonistic …
Originalspracheenglisch
Seiten (von - bis)119-129
FachzeitschriftMicrobial Ecology
Jahrgang55
Ausgabenummer1
DOIs
PublikationsstatusVeröffentlicht - 2008

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