Characterization of a bacterial collar and rhizome rot of banana (Musa paradisiaca) caused by strains of Erwinia chrysanthemi pv. paradisiaca
Journal Title: Journal of Applied and Natural Science - Year 2013, Vol 5, Issue 2
Abstract
A serious collar and rhizome rot disease of banana was observed in the north region of Maharashtra state in post rainy season. The disease was caused by the bacterial strains of Erwinia chrysanthemi pv. paradisiaca identified and characterized by morphological, physiological, biochemical and pathogenicity tests. The infection occurred on new banana plantation of one month old in poorly drained soil. In post rainy season, banana plantations of 8 to 10 weeks were found severely infected. E. chrysanthemi pv. paradisiaca produced soft rot symptom on healthy banana rhizomes within three weeks. Two strains were isolated from the collar and rhizome rotted diseased samples which were similar in morphological, physiological and biochemical characteristics, however they differed in the virulence aggressiveness to cause the disease in banana. Strain II caused soft rot symptoms within 19 days, however strain I produced it within 23 days of inoculation with suspension of 3×108 CFU ml-1. The result of this study revealed that strain II was more aggressive as compared to strain I of E. chrysanthemi pv. paradisiaca.
Authors and Affiliations
Dipak Nagrale, Suresh Borkar, Shailesh Gawande, Asit Mandal, Satish Raut
Keywords
Related Articles
- EP ID EP109993
- DOI 10.31018/jans.v5i2.349
- Views 71
- Downloads 0
Virulence gene profile and antimicrobial resistance of Staphylococcus aureus isolated from bovine mastitis in Kashmir, India
The Staphylococcus aureusis often responsible for a number of diseases in humans and animals, and it is considered as a main etiological agent of bovine mastitis. The pathogenicity of S. aureus is due to both its ability...
Detection of Aflatoxin B1 through indirect ELISA from fresh grains obtained from three maize growing zones of India
Aflatoxin B1 (AFB1) is most frequently found in plant substrates, which has shown the highest toxigenic potential. Based on previous studies, the IARC has classified AFB1 as a class 1A human carcinogen. Several impacts o...
Evaluation of fungal pathogens, Fusarium semitectum Berk. and Ravenel and Hirsutella thompsonii Fisher against red spider mite, Tetranychus neocaledoni-cus (Andre) of okra under laboratory and greenhouse conditions
Efficacy of fungal pathogens, Fusarium semitectum Berk. and Ravenel and Hirsutella thompsonii Fisher was evaluated against red spider mite, Tetranychus neocaledonicus (Andre) of okra under laboratory and greenhouse condi...
Response of Strawberry plant ( Fragaria ananassa Duch.) to inoculation with arbuscular mycorrhizal fungi and Trichoderma viride
The present paper represents the positive role of Arbuscular Mycorrhizal (AM) fungi as biofertilizers in strawberry. Experiments were carried out to assess the effectiveness of Trichoderma viride and AM fungi (Glomus mos...
Calibration of DRAINMOD for prediction of water table depths and drain discharges under waterlogged Vertisols of Maharashtra, India
An estimation of optimal design parameters of subsurface drainage system through monitoring of water table depths and drain discharges are expensive in terms of time and money. The simulation modeling is an effective too...