+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Plant Growth-Promoting Rhizobacterial Mediated Protection in Tomato Against Tomato mottle virus

Plant Growth-Promoting Rhizobacterial Mediated Protection in Tomato Against Tomato mottle virus

Plant Disease 84(7): 779-784

Tomato plants treated with plant growth-promoting rhizobacteria (PGPR), applied as an industrially formulated seed treatment, a spore preparation mixed with potting medium (referred to as powder), or a combined seed-powder treatment, were evaluated under field conditions for induced resistance to Tomato mottle virus (ToMoV). The PGPR strains used, based on their ability to induce resistance in previous experiments, included Bacillus amyloliquefaciens 937a, B. subtilis 937b, and B. pumilus SE34. Experiments were conducted in the fall of 1997 and the spring and fall of 1998 at the University of Florida's Gulf Coast Research & Education Center, Bradenton. All plants were rated for symptoms and analyzed for the presence of ToMoV DNA at 40 days after transplant (dat). Whitefly densities were determined on individual plants in each trial, and marketable fruit yields were determined at least two times during each trial. The highest level of protection occurred in the fall 1997 trial when, at 40 dat, ToMoV disease severity ratings were significantly less in all PGPR powder-based treatments than in either of the seed or control treatments. Detection of viral DNA using Southern dot blot analyses correlated with symptom severity ratings, as did fruit yields. A reduction in ToMoV symptom severity ratings and incidence of viral DNA were also observed for some PGPR treatments in the spring 1998 trial, although corresponding yield responses were not apparent. Little or no resistance was observed in the fall 1998 trial. No differences in disease severity, detection of ToMoV DNA, or yield occurred among treatments in any of the trials at 80 dat. These data show that up to 40 dat under natural conditions of high levels of vector-virus pressure, some PGPR treatments resulted in reduced ToMoV incidence and disease severity and, in some cases, a corresponding increase in fruit yield. The use of PGPR could become a component of an integrated program for management of this virus in tomato.

(PDF emailed within 0-6 h: $19.90)

Accession: 066555424

Download citation: RISBibTeXText

PMID: 30832108

DOI: 10.1094/pdis.2000.84.7.779

Related references

Enhanced growth promotion of tomato and nutrient uptake by plant growth promoting rhizobacterial isolates in presence of tobacco mosaic virus pathogen. Karnataka Journal Of Agricultural Sciences: 2, 309-311, 2008

Plant growth-promoting activity of some rhizobacterial strains on tomato plants. Indian Phytopathology 58(4): 462-465, 2005

Protection of tomato seedlings against infection by Pseudomonas syringae pv. tomato by using the plant growth-promoting bacterium Azospirillum brasilense. Applied and Environmental Microbiology 68(6): 2637-2643, 2002

PGPR-mediated protection of tomato against tomato mottle geminivirus under field conditions. Phytopathology 88(9 SUPPL ): S65, Sept, 1998

Prevention of plant virus diseases by Mirabilis jalapa leaf extract Tomato yellow mottle virus in tomato (Lycopersicon esculentum), cucumber mosaic virus, cucumber green mottle mosaic virus in cucumber (Cucumis sativus. New botanistub 1982) 7(7): 87-91, 1982

Biological management of vascular wilt of tomato caused by Fusarium oxysporum f.sp. lycospersici by plant growth-promoting rhizobacterial mixture. Biological Control 57(2): 85-93, 2011

Induced systemic resistance to tomato leaf curl virus and increased yield in tomato by plant growth promoting rhizobacteria under field conditions. Archives of Phytopathology and Plant Protection 43(15): 1463-1472, 2010

Plant responses to tomato chlorotic mottle virus: Proteomic view of the resistance mechanisms to a bipartite begomovirus in tomato. Journal of Proteomics 151: 284-292, 2016

Quantitative trait loci for tomato yellow leaf curl virus and tomato mottle virus resistance in tomato. Journal of the American Society for Horticultural Science 131(2): 267-272, 2006

Peptide aptamers that bind to geminivirus replication proteins confer a resistance phenotype to tomato yellow leaf curl virus and tomato mottle virus infection in tomato. Journal of Virology 87(17): 9691-9706, 2013

Application of plant growth-promoting rhizobacteria PGPR in combination with a mild strain of Cucumber mosaic virus CMV associated with viral satellite RNAs to enhance growth and protection against a virulent strain of CMV in tomato. Canadian Journal of Plant Pathology 34(2): 177-186, 2012

Preferential Promotion of Lycopersicon esculentum (Tomato) Growth by Plant Growth Promoting Bacteria Associated with Tomato. Indian Journal of Microbiology 54(4): 403-412, 2014

Plant growth-promoting effects of rhizospheric and endophytic bacteria associated with different tomato cultivars and new tomato hybrids. Chemical and Biological Technologies in Agriculture 3: 1, 2016

Analysis of gene sequences for the nucleocapsid protein from Tomato spotted wilt virus for promoting RNA-mediated cross-protection using the Potato virus X vector system. Journal of General Plant Pathology 70(4): 239-242, 2004

Plant-mediated restriction of Salmonella enterica on tomato and spinach leaves colonized with Pseudomonas plant growth-promoting rhizobacteria. International Journal of Food Microbiology 259: 1-6, 2017