International Journal of Plant Sciences

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Morphological and Pathogenic Variability in French Bean Isolates of Sclerotinia sclerotiorum


Affiliations
1 Department of Plant Pathology, College of Agriculture, Assam Agricultural University, Jorhat (Assam), India
2 Regional Agricultural Research Station, Titabor, Jorhat (Assam), India
     

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Studies conducted on morphological and pathogenic variability among 30 isolates of Sclerotinia sclerotiorum (Lib) de Bary, derived from infected French bean (Phaseolus vulgaris) plants showing typical symptoms of white mold, collected from different geographical locations of NE India. All the isolates showed variation in morphological characters based on their mycelial growth, colony character and sclerotial formations when grown on PDA. Out of 30 isolates, 14 isolates showed highly virulent reaction, each 8 isolate revealed moderately and less virulent reaction respectively on French bean under pot condition.

Keywords

Sclerotinia sclerotiorum, Phaseolus vulgaris, White Mold, PDA, Virulent.
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  • Abawi, G.S. and Grogan, R.G. (1979). Epidemiology of disease caused by Sclerotinia spp. Phytopath., 69: 899-904.

  • Bag, T.K. (2000). An outbreak of watery pod rot of French bean in the hills of Arunachal Pradesh. J. Mycol. Plant Pathol., 30 (1): 130.

  • Cessna, S.G., Sears, V.E., Dickman, M.B. and Low, P.S. (2000). Oxalic acid, a pathogenicity factor for Sclerotinia sclerotiorum, suppresses the oxidative burst of the host plant. Plant Cell, 12 : 2191-2199.

  • Dhawan, S., Rai, J.N. and Srivastava, S.K. (1981).Variations in the sulphur content of Brassica juncea plants infected with different isolates of S. sclerotiorum. Indian J. Mycol. PI. Pathol., 11: 100-101.

  • Dutta, P. (2006). Biological management of white mold/rot of French bean caused by Sclerotinia sclerotiorum (Lib.) de Bary By some local antagonists, Ph.D (Ag.). Thesis, Assam Agricultural University, Jorhat, ASSAM (INDIA).

  • Garg, H., Kohn, Linda M., Andrew, M., Li, H., Krishnapillai S. and Barbetti, M. J.(2010). Pathogenicity of morphologically different isolates of Sclerotinia sclerotiorum with Brassica napus and B. juncea genotypes. European J. Plant Patholol., 126: 305-315.

  • Godoy, G., Steadman, J.R., Dickman, M.B. and Dam, R. (1990). Use of mutants to demonstrate the role of oxalic acid in pathogenicity of Sclerotinia sclerotiorum on Phaseolus vulgaris. Physiol. Mol. Plant Pathol, 37: 179–191.

  • Iqbal, S.M., Ghafoor, A., Ahmad, Z. and Haqqani, A.M. (2005). Pathogenicity and fungicidal efficacy for Sclerotinia rot of brinjal. Intern. J. Agric. Biol, 5 (4): 618–620.

  • Nuss, D.L. (2005). Hypovirulence: Mycoviruses at the fungalplant interface. Nat. Rev. Microbiol., 3: 632–642.

  • Price, K. and Calhoun, J. (1975). Pathogenicity of isolates of Sclerotinia sclerotiorum (Lib.) de Bary to several hosts. Phytopathol.Zeitschrift, 83: 232- 238.

  • Purdy, L.H. (1979). Sclerotinia sclerotiorum: History, diseases and symptomatology, host range, geographic distribution and impact. Phytopath., 69: 879-880.

  • Rai, J.N. and Dhawan, S. (1976). Studies on purification and identification of toxic metabolites produced by Sclerotinia sclerotiorum causing white rot disease of crucifers.Indian Phytopath., 29: 407.

  • Saharan, G.S. and Mehta, N. (2008).Sclerotinia diseases of crop plants: Biology, Ecology and Disease Management, Springer Press.

  • Steadman, J.R. (1983).White mold- a serious yield limiting disease of bean. Plant Dis., 67 : 346-350.

  • Tores, J.A. (1990). In vitro variability of a number of characteristics of S.sclerotiorum. Phytoparasitica, 18 : 321-329.

  • Tu, J.C. (1989). Management of white mold of white beans in Ontario. Plant Dis., 73(4): 281-285.

  • Willets, H.J. and Wong, J.A.L. (1980). The biology of S. sclerotiorum, S. trifoliorum and S. minor with emphasis on specific nomenclature.Botanical Rev., 46 : 101-165.

  • Yu, X., Li, B., Fu, Y., Jiang, D., Ghabrial, S. A., Li, G., Peng, Y., Xie, J., Cheng, J., Huang, J. and Yi, X. (2010). A Gemini virus - related DNA mycovirus that confers hypovirulence to a plant pathogenic fungus. Proceedings of the National Academy of Sciences of the United States of America, 107(18): 8387–8392.


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  • Morphological and Pathogenic Variability in French Bean Isolates of Sclerotinia sclerotiorum

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Authors

C. Lalfakawma
Department of Plant Pathology, College of Agriculture, Assam Agricultural University, Jorhat (Assam), India
B. C. Das
Regional Agricultural Research Station, Titabor, Jorhat (Assam), India
L. C. Bora
Department of Plant Pathology, College of Agriculture, Assam Agricultural University, Jorhat (Assam), India

Abstract


Studies conducted on morphological and pathogenic variability among 30 isolates of Sclerotinia sclerotiorum (Lib) de Bary, derived from infected French bean (Phaseolus vulgaris) plants showing typical symptoms of white mold, collected from different geographical locations of NE India. All the isolates showed variation in morphological characters based on their mycelial growth, colony character and sclerotial formations when grown on PDA. Out of 30 isolates, 14 isolates showed highly virulent reaction, each 8 isolate revealed moderately and less virulent reaction respectively on French bean under pot condition.

Keywords


Sclerotinia sclerotiorum, Phaseolus vulgaris, White Mold, PDA, Virulent.

References