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http://krishi.icar.gov.in/jspui/handle/123456789/67834| Title: | Microbial detoxification of Colletotrichum falcatum toxin |
| Other Titles: | Not Available |
| Authors: | Malathi, P., Viswanathan, R., Padmanaban, P., Mohanraj, D. and Ramesh Sundar, A. |
| ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
| Author's Affiliated institute: | ICAR-Sugarcane Breeding Institute |
| Published/ Complete Date: | 2002-09-25 |
| Project Code: | P1-99/3-1-4 |
| Keywords: | Sugarcane, Colletotrichum falcatum, toxin, detoxification, microbes, Pseudomonas fluorescens |
| Publisher: | Indian Academy of Sciences |
| Citation: | Not Available |
| Series/Report no.: | Not Available; |
| Abstract/Description: | A study was conducted on the possible detoxification of phytotoxin produced by the sugarcane red-rot pathogen Colletotrichum falcatum Went by antagonistic fungal and bacterial strains. Eleven Pseudomonas fluorescens strains and two Trichoderma harzianum strains were grown on a medium containing the pathogen toxin. Later, the treated toxin was tested for its phytotoxic activity using symptom bioassay, electrolytic leakage and spectral analysis. In symptom bioassay, the phytotoxin incubated with P. fluorescens strains FP 7 and VPT 4 and T. harzianum strain T-5 did not exhibit any symptom on susceptible sugarcane leaves. These treatments caused reduction in electrolyte leakage compared to other treatments and untreated toxin. Also, spectral analysis showed varied spectral patterns by different treatments. The results revealed that certain strains of the biocontrol agents cause detoxification of the pathogen toxin, which is one of the major pathogenicity determinants of the red-rot pathogen. |
| Description: | A study was conducted on the possible detoxification of phytotoxin produced by the sugarcane red-rot pathogen Colletotrichum falcatum Went by antagonistic fungal and bacterial strains. Eleven Pseudomonas fluorescens strains and two Trichoderma harzianum strains were grown on a medium containing the pathogen toxin. Later, the treated toxin was tested for its phytotoxic activity using symptom bioassay, electrolytic leakage and spectral analysis. In symptom bioassay, the phytotoxin incubated with P. fluorescens strains FP 7 and VPT 4 and T. harzianum strain T-5 did not exhibit any symptom on susceptible sugarcane leaves. These treatments caused reduction in electrolyte leakage compared to other treatments and untreated toxin. Also, spectral analysis showed varied spectral patterns by different treatments. The results revealed that certain strains of the biocontrol agents cause detoxification of the pathogen toxin, which is one of the major pathogenicity determinants of the red-rot pathogen. |
| ISSN: | 0011-3891 |
| Type(s) of content: | Research Paper |
| Sponsors: | Not Available |
| Language: | English |
| Name of Journal: | Current Science |
| Journal Type: | National |
| NAAS Rating: | 6.73 |
| Impact Factor: | 1.102 (2020) |
| Volume No.: | 83 (6) |
| Page Number: | 745-749 |
| Name of the Division/Regional Station: | Division of Crop Protection |
| Source, DOI or any other URL: | Not Available |
| URI: | http://krishi.icar.gov.in/jspui/handle/123456789/67834 |
| Appears in Collections: | CS-SBI-Publication |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Microbial detoxification 2002.pdf | 71.2 kB | Adobe PDF | View/Open |
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