Babu, S. and Nandakumar, R. and Sriram, S. and Jaisankar, R. and Shanmugam, V. and Raguchander, T. and Samiyappan, R. and Balasubramania, P. (2002) Relationship between sheath blight development and phytotoxin production by Rhizoctonia solani mutants in rice. Acta Phytopathologica et Entomologica Hungarica, 37 (1-3). pp. 109-118. ISSN 0238-1249
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Abstract
Mutants of Rhizoctonia solani were developed using UV irradiation of the mycelia of isolate RS7, which is the field isolate causing sheath blight in rice. The mutants showed reduced virulence, as compared to RS7 in detached leaf sheath and intact rice plants. All the mutants produced some toxin but in varied quantities. The amount of toxin produced by the mutants was positively correlated with disease development on rice plants and detached leaf sheaths. The wild isolate RS7 and mutant RSU7 produced more quantity of toxic material, which in turn related to severe sheath blight symptoms. Sclerotial production on the infected rice sheath also showed significant variation among the mutants and the virulent and less virulent isolates. SDS-PAGE analysis of the mycelial proteins showed many proteins of different molecular weights varying among mutants and wild isolate at different stages of mycelial growth. Correlation between reduction in toxin production and disease severity is statistically significant.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science / természettudomány > QH Natural history / természetrajz > QH540 Ecology / ökológia Q Science / természettudomány > QK Botany / növénytan > QK10 Plant physiology / növényélettan Q Science / természettudomány > QL Zoology / állattan > QL01 Systematic zoology / állatrendszertan |
| Depositing User: | xBarbara xBodnár |
| Date Deposited: | 01 Oct 2017 15:51 |
| Last Modified: | 30 Jun 2022 23:15 |
| URI: | http://real.mtak.hu/id/eprint/63383 |
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