Selection of bioantagonistic bacteria to be used in biological control of Rhizoctonia solani in tomato
By J. Montealegre, R. Reyes, L. M. Pérez, R. Herrera, Polyana Silva, X. Besoain. 2003
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Bacteria from the rhizoplane and surrounding soil of healthy and Rhizoctonia solani diseased tomato plants, cropped in greenhouse of the V Region of Chile, were collected. The best bacterial strains, based on their ability to control development of three R. solani isolates (identified as belonging to the anastomosis groups AG-2-1, AG‑4) , were identified as B. subtilis (one isolate) and B. lentimorbus (two different isolates). All bacterial isolates resulted effective for the in vitro control of growth of all R. solani isolates, where the control mechanisms used by the bacteria do not involve the secretion of fungal cell wall hydrolytic enzymes. R. solani AG-2-1 was more sensitive than R. solani AG-4. On the other hand, all bacteria grew well in conditions similar to those that can be found at the field level (considering pH, salinity, Fe 3+ and temperature) and showed a good capacity of tomato root colonization. These results suggest that the B. subtilis and B. lentimorbus isolates studied have an excellent potential to be used as biocontrol agents of R. solani in tomato greenhouses at the field level.
Subfields: Cell Biology, Plant Science
View Paper: https://www.semanticscholar.org/paper/f70dc0d1aea89e72d80a150ab51d11efa69e560c
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Citations in the corpus
- Identification of rice blast disease-suppressing bacterial strains from the rhizosphere of rice grown in Pakistan. (2009, methodology): “To assay the production of chitinases, bacteria were grown on medium containing chitin as the sole carbon source (Montealegre et al., 2003).”
- Biological control of Phytophthora blight in red pepper (Capsicum annuum L.) using Bacillussubtilis (2008, background): “Moreover, in the inhibition zone of the 12 isolates there was no physical contact between isolates and the pathogen suggesting that the isolated Bacillus species could produce certain antifungal metabolites which inhibit the growth of the mycelia ( Montealegre et al. 2003 ).”
- Biocontrol of rice blast by the phenaminomethylacetic acid producer of Bacillus methylotrophicus strain BC79 (2013, background): “Biological control appears to have several merits including high efficiency, a broad spectrum, environmental friendliness, and lack of pathogen resistance (Montealegre et al., 2003; Kazempour, 2004; Naureen et al., 2009).”
- Actinomycetes and fungi isolated from plant-parasitic nematode infested soils: screening of the effective biocontrol potential, indole-3-acetic acid and siderophore production (2010, background): “It is possible that this strain produces other substances to inhibit test organisms such as antibiotic and enzyme ( Montealegre et al. 2003 ).”
- Screening rhizobacteria for biological control of Fusarium root and crown rot of sorghum in Ethiopia (2007, methodology): “In vitro root colonization The isolates, which showed antagonistic activity in the dual culture assays, were tested for their ability to colonize sorghum roots in vitro, using a modification of the methods by Patten and Glick, 2002 and Montealegre et al., 2003.”