Vashisth, S and Jaba, J and Sharma, S P and Sharma, H C (2022) Biochemical mechanisms of induced resistance to Chilo partellus in sorghum. International Journal of Pest Management. pp. 1-12. ISSN 0967-0874
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Abstract
Host plant resistance is an important component of pest management, and information on contribution of different mechanisms of resistance is important for developing cultivars with resistance to the target pests. Therefore, induced resistance was studied in five sorghum genotypes against Chilo partellus by using infested and non-infested plants under greenhouse conditions. The activity of plant defensive enzymes and the secondary metabolites were recorded at 7 days after infestation and their induction varied among the genotypes and treatments. The resistant sorghum genotypes ICSV 700, IS 2205 and ICSV 93046 suffered lower leaf damage by the neonate larvae of C. partellus (damage rating (DR) 2.8–3.7) as compared to the susceptible checks, ICSV 1 and Swarna (DR 6.4 and 7.0, respectively). ICSV 700, IS 2205 and ICSV 93046 exhibited greater enzymatic activity [peroxidase (POD), polyphenol oxidase (PPO), phenylalanine ammonia lyase (PAL) and tyrosine ammonia lyase (TAL)] and had more amounts of phenols than the susceptible check, Swarna. This information will be useful for developing sorghum genotypes with resistance to C. partellus for sustainable crop production.
| Item Type: | Article |
|---|---|
| Divisions: | Research Program : Asia |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Enzyme, host plant resistance, pest management, secondary metabolite, spotted stem borer |
| Subjects: | Others > Pest Management Mandate crops > Sorghum |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 01 Dec 2023 03:36 |
| Last Modified: | 01 Dec 2023 03:36 |
| URI: | http://oar.icrisat.org/id/eprint/12317 |
| Official URL: | https://www.tandfonline.com/doi/abs/10.1080/096708... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | We are thankful to entomology staff, ICRISAT, for their assistance in carrying out the experiments. |
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