Bacillus and Streptomyces were selected as broad-spectrum antagonists against soilborne pathogens from arid areas in Egypt

Martina Köberl, Elshahat M. Ramadan, Mohamed Adam, Massimiliano Cardinale, Johannes Hallmann, Holger Heuer, Kornelia Smalla, Gabriele Berg

Research output: Contribution to journalArticlepeer-review


Plant protection via disease-suppressive bacteria in desert farming requires specific biological control agents (BCAs) adapted to the unique arid conditions. We performed an ecological study of below-ground communities in desert farm soil and untreated desert soil, and based on these findings, selected antagonists were hierarchically evaluated. In contrast to the highly specific 16S rRNA fingerprints of bacterial communities in soil and cultivated medicinal plants, internal transcribed spacer profiles of fungal communities were less discriminative and mainly characterised by potential pathogens. Therefore, we focused on in vitro bacterial antagonists against pathogenic fungi. Based on the antifungal potential and genomic diversity, 45 unique strains were selected and characterised in detail. Bacillus/Paenibacillus were most frequently identified from agricultural soil, but antagonists from the surrounding desert …
Original languageEnglish
Pages (from-to)168-178
JournalFEMS Microbiology Letters
Issue number2
Early online date11 Feb 2013
Publication statusPublished - May 2013

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