A host-specific toxin of Rhizoctonia solani triggers superoxide dismutase (SOD) activity in rice

V. Paranidharan; A. Palaniswami; P. Vidhyasekaran; R. Velazhahan

doi:10.1080/03235400500094159

A host-specific toxin of Rhizoctonia solani triggers superoxide dismutase (SOD) activity in rice

V. Paranidharan^*, A. Palaniswami, P. Vidhyasekaran, R. Velazhahan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Changes in the activity of superoxide dismutase (SOD) in rice in response to treatment with Rhizoctonia solani toxin and/or R. solani elicitor were studied. Treatment of rice leaf sheaths with R. solani-toxin significantly increased the SOD activity within 12 h and the maximum enzyme activity was detected 36 h after treatment at which period a fourfold increase in SOD activity was recorded compared to control plants. Isozyme analysis indicated that five new SOD isozymes (SOD-1, SOD-3, SOD-6, SOD-7 and SOD-8) were induced in rice 1-2 days after toxin treatment. In elicitor-treated rice leaf sheaths, SOD-2 increased in activity 1-5 days after treatment. Pretreatment of rice leaf sheaths with elicitor suppressed the toxin-induced accumulation of SOD.

Original language	English
Pages (from-to)	151-157
Number of pages	7
Journal	Archives of Phytopathology and Plant Protection
Volume	38
Issue number	2
DOIs	https://doi.org/10.1080/03235400500094159
Publication status	Published - May 2005
Externally published	Yes

Keywords

Elicitor
Oryza sativa
Rhizoctonia solani
Sheath blight
Superoxide dismutase
Toxin

ASJC Scopus subject areas

Agronomy and Crop Science

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10.1080/03235400500094159

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title = "A host-specific toxin of Rhizoctonia solani triggers superoxide dismutase (SOD) activity in rice",

abstract = "Changes in the activity of superoxide dismutase (SOD) in rice in response to treatment with Rhizoctonia solani toxin and/or R. solani elicitor were studied. Treatment of rice leaf sheaths with R. solani-toxin significantly increased the SOD activity within 12 h and the maximum enzyme activity was detected 36 h after treatment at which period a fourfold increase in SOD activity was recorded compared to control plants. Isozyme analysis indicated that five new SOD isozymes (SOD-1, SOD-3, SOD-6, SOD-7 and SOD-8) were induced in rice 1-2 days after toxin treatment. In elicitor-treated rice leaf sheaths, SOD-2 increased in activity 1-5 days after treatment. Pretreatment of rice leaf sheaths with elicitor suppressed the toxin-induced accumulation of SOD.",

keywords = "Elicitor, Oryza sativa, Rhizoctonia solani, Sheath blight, Superoxide dismutase, Toxin",

author = "V. Paranidharan and A. Palaniswami and P. Vidhyasekaran and R. Velazhahan",

year = "2005",

month = may,

doi = "10.1080/03235400500094159",

language = "English",

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TY - JOUR

T1 - A host-specific toxin of Rhizoctonia solani triggers superoxide dismutase (SOD) activity in rice

AU - Paranidharan, V.

AU - Palaniswami, A.

AU - Vidhyasekaran, P.

AU - Velazhahan, R.

PY - 2005/5

Y1 - 2005/5

N2 - Changes in the activity of superoxide dismutase (SOD) in rice in response to treatment with Rhizoctonia solani toxin and/or R. solani elicitor were studied. Treatment of rice leaf sheaths with R. solani-toxin significantly increased the SOD activity within 12 h and the maximum enzyme activity was detected 36 h after treatment at which period a fourfold increase in SOD activity was recorded compared to control plants. Isozyme analysis indicated that five new SOD isozymes (SOD-1, SOD-3, SOD-6, SOD-7 and SOD-8) were induced in rice 1-2 days after toxin treatment. In elicitor-treated rice leaf sheaths, SOD-2 increased in activity 1-5 days after treatment. Pretreatment of rice leaf sheaths with elicitor suppressed the toxin-induced accumulation of SOD.

AB - Changes in the activity of superoxide dismutase (SOD) in rice in response to treatment with Rhizoctonia solani toxin and/or R. solani elicitor were studied. Treatment of rice leaf sheaths with R. solani-toxin significantly increased the SOD activity within 12 h and the maximum enzyme activity was detected 36 h after treatment at which period a fourfold increase in SOD activity was recorded compared to control plants. Isozyme analysis indicated that five new SOD isozymes (SOD-1, SOD-3, SOD-6, SOD-7 and SOD-8) were induced in rice 1-2 days after toxin treatment. In elicitor-treated rice leaf sheaths, SOD-2 increased in activity 1-5 days after treatment. Pretreatment of rice leaf sheaths with elicitor suppressed the toxin-induced accumulation of SOD.

KW - Elicitor

KW - Oryza sativa

KW - Rhizoctonia solani

KW - Sheath blight

KW - Superoxide dismutase

KW - Toxin

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DO - 10.1080/03235400500094159

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JF - Archives of Phytopathology and Plant Protection

IS - 2

ER -

A host-specific toxin of Rhizoctonia solani triggers superoxide dismutase (SOD) activity in rice

Abstract

Keywords

ASJC Scopus subject areas

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