Abstract
The effect of a novel synthetic signal molecule, acibenzolar-S-methyl (CGA-245704; benzo [1,2,3] thiadiazole-7-carbothioic acid S-methyl ester), in inducing resistance in sugarcane against red rot disease caused by the fungus Colletotrichum falcatum Went was studied. Application of CGA-245704 as a soil drench or along with marcotting rooting mixture induced resistance in sugarcane to challenge inoculation with C. falcatum. When the pathogen was inoculated by the plug method, it caused discoloration in the untreated control stalk tissues; however, in the stalk tissues pretreated with acibenzolar-S-methyl, pathogen colonization was considerably reduced. When the pathogen was inoculated by nodal swabbing, its penetration was arrested in the sensitized stalk tissues. An induced systemic resistance effect was found to persist up to 30 days in the pretreated cut canes. Increased phenolic content and accumulation of pathogenesis-related (PR) proteins, viz., chitinase, β-1,3-glucanase and thaumatin-like protein (PR-5), were observed in sugarcane plants treated with acibenzolar-S-methyl.
| Original language | English |
|---|---|
| Pages (from-to) | 231-242 |
| Number of pages | 12 |
| Journal | Phytoparasitica |
| Volume | 29 |
| Issue number | 3 |
| Publication status | Published - 2001 |
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Keywords
- Chitinase
- Induced systemic resistance
- Red rot
- Saccharum officinarum
- Thaumatin-like protein
- β-1,3-glucanase
ASJC Scopus subject areas
- Plant Science
- Insect Science
Cite this
Induction of systemic resistance to Colletotrichum falcatum in sugarcane by a synthetic signal molecule, acibenzolar-S-methyl (CGA-245704). / Sundar, A. R.; Velazhahan, R.; Viswanathan, R.; Padmanaban, P.; Vidhyasekaran, P.
In: Phytoparasitica, Vol. 29, No. 3, 2001, p. 231-242.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Induction of systemic resistance to Colletotrichum falcatum in sugarcane by a synthetic signal molecule, acibenzolar-S-methyl (CGA-245704)
AU - Sundar, A. R.
AU - Velazhahan, R.
AU - Viswanathan, R.
AU - Padmanaban, P.
AU - Vidhyasekaran, P.
PY - 2001
Y1 - 2001
N2 - The effect of a novel synthetic signal molecule, acibenzolar-S-methyl (CGA-245704; benzo [1,2,3] thiadiazole-7-carbothioic acid S-methyl ester), in inducing resistance in sugarcane against red rot disease caused by the fungus Colletotrichum falcatum Went was studied. Application of CGA-245704 as a soil drench or along with marcotting rooting mixture induced resistance in sugarcane to challenge inoculation with C. falcatum. When the pathogen was inoculated by the plug method, it caused discoloration in the untreated control stalk tissues; however, in the stalk tissues pretreated with acibenzolar-S-methyl, pathogen colonization was considerably reduced. When the pathogen was inoculated by nodal swabbing, its penetration was arrested in the sensitized stalk tissues. An induced systemic resistance effect was found to persist up to 30 days in the pretreated cut canes. Increased phenolic content and accumulation of pathogenesis-related (PR) proteins, viz., chitinase, β-1,3-glucanase and thaumatin-like protein (PR-5), were observed in sugarcane plants treated with acibenzolar-S-methyl.
AB - The effect of a novel synthetic signal molecule, acibenzolar-S-methyl (CGA-245704; benzo [1,2,3] thiadiazole-7-carbothioic acid S-methyl ester), in inducing resistance in sugarcane against red rot disease caused by the fungus Colletotrichum falcatum Went was studied. Application of CGA-245704 as a soil drench or along with marcotting rooting mixture induced resistance in sugarcane to challenge inoculation with C. falcatum. When the pathogen was inoculated by the plug method, it caused discoloration in the untreated control stalk tissues; however, in the stalk tissues pretreated with acibenzolar-S-methyl, pathogen colonization was considerably reduced. When the pathogen was inoculated by nodal swabbing, its penetration was arrested in the sensitized stalk tissues. An induced systemic resistance effect was found to persist up to 30 days in the pretreated cut canes. Increased phenolic content and accumulation of pathogenesis-related (PR) proteins, viz., chitinase, β-1,3-glucanase and thaumatin-like protein (PR-5), were observed in sugarcane plants treated with acibenzolar-S-methyl.
KW - Chitinase
KW - Induced systemic resistance
KW - Red rot
KW - Saccharum officinarum
KW - Thaumatin-like protein
KW - β-1,3-glucanase
UR - http://www.scopus.com/inward/record.url?scp=0034927762&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034927762&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0034927762
VL - 29
SP - 231
EP - 242
JO - Phytoparasitica
JF - Phytoparasitica
SN - 0334-2123
IS - 3
ER -