Host-specific toxin production by Rhizoctonia solani, the rice sheath blight pathogen

P. Vidhyasekaran, T. Ruby Ponmalar, R. Samiyappan, R. Velazhahan, R. Vimala, A. Ramanathan, V. Paranidharan, S. Muthukrishnan

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

Rhizoctonia solani, the rice sheath blight pathogen, produces a toxin that reproduces all symptoms of the disease. The toxin has been partially purified and it was found to be a carbohydrate containing glucose, mannose, N-acetylgalactosamine, and N-acetylglucosamine. The toxin was also detected in infected leaves. Highly virulent isolates produced more toxin than less virulent isolates. Several R. solani isolates from rice and one each from cotton and tomato produced a similar toxin. All rice cultivars tested were susceptible to the pathogen and sensitive to the toxin. Host specificity of the toxin has been demonstrated using hosts and nonhosts of the pathogen.

Original languageEnglish
Pages (from-to)1258-1263
Number of pages6
JournalPhytopathology
Volume87
Issue number12
Publication statusPublished - Dec 1997

Fingerprint

Thanatephorus cucumeris
blight
toxins
rice
pathogens
N-acetylglucosamine
host specificity
mannose
signs and symptoms (plants)
cotton
tomatoes
carbohydrates
glucose
cultivars
leaves

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science

Cite this

Vidhyasekaran, P., Ruby Ponmalar, T., Samiyappan, R., Velazhahan, R., Vimala, R., Ramanathan, A., ... Muthukrishnan, S. (1997). Host-specific toxin production by Rhizoctonia solani, the rice sheath blight pathogen. Phytopathology, 87(12), 1258-1263.

Host-specific toxin production by Rhizoctonia solani, the rice sheath blight pathogen. / Vidhyasekaran, P.; Ruby Ponmalar, T.; Samiyappan, R.; Velazhahan, R.; Vimala, R.; Ramanathan, A.; Paranidharan, V.; Muthukrishnan, S.

In: Phytopathology, Vol. 87, No. 12, 12.1997, p. 1258-1263.

Research output: Contribution to journalArticle

Vidhyasekaran, P, Ruby Ponmalar, T, Samiyappan, R, Velazhahan, R, Vimala, R, Ramanathan, A, Paranidharan, V & Muthukrishnan, S 1997, 'Host-specific toxin production by Rhizoctonia solani, the rice sheath blight pathogen', Phytopathology, vol. 87, no. 12, pp. 1258-1263.
Vidhyasekaran P, Ruby Ponmalar T, Samiyappan R, Velazhahan R, Vimala R, Ramanathan A et al. Host-specific toxin production by Rhizoctonia solani, the rice sheath blight pathogen. Phytopathology. 1997 Dec;87(12):1258-1263.
Vidhyasekaran, P. ; Ruby Ponmalar, T. ; Samiyappan, R. ; Velazhahan, R. ; Vimala, R. ; Ramanathan, A. ; Paranidharan, V. ; Muthukrishnan, S. / Host-specific toxin production by Rhizoctonia solani, the rice sheath blight pathogen. In: Phytopathology. 1997 ; Vol. 87, No. 12. pp. 1258-1263.
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