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Resistance Induction and Enhanced Tuber Production by Pre-inoculation with Bacterial Strains in Potato Plants against Phytophthora infestans
- Source :
- Mycobiology
- Publication Year :
- 2006
-
Abstract
- Efficacy of resistance induction by the bacterial isolates Pseudomonas putida (TRL2-3), Micrococcus luteus (TRK2-2) and Flexibacteraceae bacterium (MRL412), which were isolated from the rhizosphere of plants growing in Jeju Mountain, were tested in a greenhouse. The disease severity caused by Phytophthora infestans was effectively reduced in the potato plants pre-inoculated with bacterial isolates compared with those of the untreated control plants growing in a greenhouse. In order to estimate the level of protection by the bacterial isolates, Mancozeb WP (Diesen M®, Kyong nong) and DL-3-amino butyric acid (BABA) were pre-treated, whereas Dimethomorph WP (Forum®, Kyong nong) and phosphonic acid (H3PO3) were post-treated the challenge inoculation with the pathogen. Disease severities of chemical pre-treated as well as post-treated plants were reduced compare to those of the untreated. The disease reduction in the plants pre-treated with Mancozeb WP was the highest, whereas that of post-treated with Dimethomorph WP was the lowest. The yields of plants pre-inoculated with three bacterial isolates were greatly increased than those of control plants. These results suggest that biological control by bacterial isolates might be an alternative strategy against late blight disease in potato plants growing in greenhouse.
- Subjects :
- Rhizosphere
Mancozeb WP (Diesen M®)
Plant growth promoting rhizobacteria (PGPR)
Inoculation
Phytophthora infestans
fungi
Biological pest control
food and beverages
Biology
biology.organism_classification
Microbiology
Dimethomorph WP (Forum®)
Induced systemic resistance
Horticulture
Infectious Diseases
Blight
Mancozeb
Micrococcus luteus
DL-3-amino butyric acid (BABA)
Potato
Bacteria
Phosphonic acid (H3PO3)
Research Article
Subjects
Details
- ISSN :
- 12298093
- Volume :
- 34
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Mycobiology
- Accession number :
- edsair.doi.dedup.....786efd03b72a034cac42692a943c3beb