Stenotrophomonas maltophilia: a new potential biocontrol agent of Ralstonia solanacearum, causal agent of potato brown rot

By N. Messiha, A. V. van Diepeningen, N. S. Farag, S. A. Abdallah, J. Janse, A. V. Van Bruggen. European journal of plant pathology, 2007

137 citations recorded by the source corpus.

Stenotrophomonas maltophilia was isolated from the rhizosphere of eggplant in the Nile Delta of Egypt, and its antagonistic potential against Ralstonia solanacearum race 3 biovar 2, the causal agent of potato brown rot, was in vitro evaluated on KB agar medium and in vivo on potato plants. In vitro, four isolates of S. maltophilia (PD3531, PD3532, PD3533, and PD3534) appeared antagonistic. The isolate (PD3533) was screened as the most promising antagonist for the in vivo tests. In the greenhouse, the antagonist was applied directly to soil or by bacterization of potato eyepieces. Stenotrophomonas maltophilia significantly suppressed potato brown rot in Egyptian clay soil but not in Dutch clay soil. Survival of a rifampicin and chloramphenicol-resistant S. maltophilia strain PD4560 was investigated in two pairs of clay soils, conventionally and organically managed, from Egypt and the Netherlands. The survival of S. maltophilia was significantly less in Dutch than in Egyptian soils, while the converse occurred for R. solanacearum. These results are in agreement with those obtained in the in vivo biocontrol tests. In conclusion, S. maltophilia may be useful for control of brown rot in the area where it was originally isolated, the Nile Delta in Egypt.

Subfields: Ecology, Endocrinology, Plant Science

View Paper: https://www.semanticscholar.org/paper/908728fee51e995aec3de6e6a5e2b999ec065c5d

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In Ecology

1. Jaco Vangronsveld
2. N. Weyens

In Plant Science

1. Alistair Rogers
2. Jaco Vangronsveld
3. S. Long
4. Elizabeth A. Ainsworth

Citations in the corpus

• Poplar and its Bacterial Endophytes: Coexistence and Harmony (2009, background): “Genome sequencing was carried out at the Joint Genome Institute (DOE, Walnut Creek, CA) on P. putida W619 (genome available at http://genome.jgi-psf.org/psepw/psepw.home.html), Serratia proteamaculans 568 (genome available at http://genome.jgipsf.org/serpr/serpr.home.html) and Stenotrophomonas malto”