Journal of Horticultural Sciences

Open Access Open Access  Restricted Access Subscription Access

Cross-Infectivity of Ralstonia solanacearum from Marigold Grown in Andaman Islands


Affiliations
1 ICAR-Central Island Agricultural Research Institute, Port Blair - 744 101 Andaman & Nicobar Islands, India
 

Bacterial wilt disease, caused by Ralstonia solanacearum, is one of the major concerns for marigold cultivation in Andaman Islands. Cross-infectivity potential of the bacterial wilt pathogen, isolated from marigold, was tested in other common vegetable-hosts of the Island. Pathogen identity was confirmed by morphological identification and Biolog based phenotypic fingerprinting. Cross-infectivity tests revealed tomato to be the most susceptible among the three solanaceous hosts tested. Highest wilt incidence was observed in tomato and marigold (100%) plants, followed by 55.6% in brinjal and 22.3% in chilli, upon artificial soil inoculation. Our study enlightens pathogenic potential of the bacterial wilt pathogen in important vegetable crops of Andaman Islands and can help formulate suitable management practices for successful management of the pathogen.

Keywords

Marigold, Ralstonia solanacearum, Bacterial Wilt, Andaman Islands.
User
Notifications
Font Size

  • Buddenhagen, I.W, Sequeira, L. and Kelman, A. 1962. Designation of races of Pseudomonas solanacearum. Phytopathol., 52:726 (1962)

  • Fegan, M. and Prior, P. 2005. How complex is the ‘Ralstonia solanacearum species complex’? In: Bacterial Wilt Disease and the Ralstonia solanacearum Species Complex. C. Allen, P. Prior and A.C. Hayward (eds.), American Phytopathological Society, St. Paul, MN, USA, pp. 449-461

  • Hayward, A.C. 1964. Characte ri sti cs of Pseudomonas solanacearum. J. Appl . Bacteriol., 27:265-277

  • Hayward, A.C. 1991. Biology and epidemiology of bacterial wil t caused by Pseudomonas solanacearum. Annu. Rev. Phytopathol ., 29:65-87

  • Kelman, A. 1954. The relationship of pathogenicity in Pseudomonas solanacearum to colony appearance on a tetrazolium chloride medium. Phytopathol., 44:693-695

  • Kumar, A. 2006. Methods for screening ginger (Zingiber officinale Rosc.) for bacterial wilt resistance. Indian Phytopathol., 59:281-286

  • Mondal, B., Bhattacharya, I. and Khatua, D.C. 2011. Crop and weed host of Ralstonia solanacearim in West Bengal. J. Crop & Weed, 7(2):195-199

  • Palleroni, N.J., and Doudoroff, M. 1971. Phenotypic characterization and deoxyribonucleic acid homologies of Pseudomonas solanacearum. J. Bacteriol., 107:690-696

  • Ramesh, R., Gauri, A.A. and Gaitonde, S. 2014. Genetic diversity of Ralstonia solanacearum infecting solanaceous vegetables from India reveals the existence of unknown or newer sequevars of Phylotype I strains. Eur. J. Pln. Pathol. Online publication. doi. 10.1007/s10658014-0487-5

  • Yabuuchi, E., Kosako, Y., Yano, I., Hotta, H. and Nishiuchi, Y. 1995. Transfer of two Burkholderia and an Alcaligenes species to Ralstonia gen. nov: proposal of Ralstonia pickettii (Ralston, Palleroni and Doudoroff, 1973) comb. nov., Ralstonia solanacearum (Smith 1896) comb. nov. and Ralstonia eutropha (Davis 1969) comb. nov. Microbiol. Immunol., 39:897-904


Abstract Views: 324

PDF Views: 144




  • Cross-Infectivity of Ralstonia solanacearum from Marigold Grown in Andaman Islands

Abstract Views: 324  |  PDF Views: 144

Authors

K. Sakthivel
ICAR-Central Island Agricultural Research Institute, Port Blair - 744 101 Andaman & Nicobar Islands, India
V. Baskaran
ICAR-Central Island Agricultural Research Institute, Port Blair - 744 101 Andaman & Nicobar Islands, India
K. Abirami
ICAR-Central Island Agricultural Research Institute, Port Blair - 744 101 Andaman & Nicobar Islands, India
K. Manigundan
ICAR-Central Island Agricultural Research Institute, Port Blair - 744 101 Andaman & Nicobar Islands, India
R. K. Gautam
ICAR-Central Island Agricultural Research Institute, Port Blair - 744 101 Andaman & Nicobar Islands, India

Abstract


Bacterial wilt disease, caused by Ralstonia solanacearum, is one of the major concerns for marigold cultivation in Andaman Islands. Cross-infectivity potential of the bacterial wilt pathogen, isolated from marigold, was tested in other common vegetable-hosts of the Island. Pathogen identity was confirmed by morphological identification and Biolog based phenotypic fingerprinting. Cross-infectivity tests revealed tomato to be the most susceptible among the three solanaceous hosts tested. Highest wilt incidence was observed in tomato and marigold (100%) plants, followed by 55.6% in brinjal and 22.3% in chilli, upon artificial soil inoculation. Our study enlightens pathogenic potential of the bacterial wilt pathogen in important vegetable crops of Andaman Islands and can help formulate suitable management practices for successful management of the pathogen.

Keywords


Marigold, Ralstonia solanacearum, Bacterial Wilt, Andaman Islands.

References