Toxic metabolite from clove isolate of cylindrocladium quinqueseptatum (Record no. 71428)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 01822nam a2200181Ia 4500 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Jayasinghe C K |
| 245 #0 - TITLE STATEMENT | |
| Title | Toxic metabolite from clove isolate of cylindrocladium quinqueseptatum |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Name of publisher | Journal of the Rubber Research Iinstitute of Sri Lanka |
| Year of publication | 1999 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 61-71 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Cylindrocladium quinqueseptatum Boedijn & Reitsma causes seedling blight and extensive defoliation on a wide variety of plants and is widely distributed in the humid tropics. It is a serious pathogen of Eugenia caryophyllata in Sri Lanka and has been identified as a potential pathogen on Hevea brasiliensis in the Eastern Hemisphere. All clove isolates: IMI 342173 (Rt), 359378 (Aw), 359379 (Rw) and 359380 (Kp) of C.quinqueseptatum tested were found to be capable of secreting toxic substances to the growing medium. Toxic culture filtrates proved to be thermostable (up to 100 oC) and hhost specific. The type and the size of the lesions produced by the crude toxin of different isolates varied markedly. Isolate, Rt produced the largest lesions (highest score) indicating its aggressive nature in toxin production while Aw and Rw isolates showed a mild reaction. When the reaction of Hevea clones towards the crude toxin was considered three main clusters of clones were distinguished through cluster analysis indicating the marked variation of Hevea clones grown in the Eastern Hemisphere in their sensityvity to the crude toxin. The Possibility of making use of this toxin as a tool in screening Hevea populations for Cylindrocladium leaf spot disease has also been discusseed. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Cylindrocladium quinqueseptatum |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Eugenia caryophyllata |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Hevea brasiliensis |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Toxin |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Wijesundera R L C |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Journals |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Date acquired | Serial Enumeration / chronology | Koha item type |
|---|---|---|---|---|---|---|---|---|
| Journals | RRII Library | RRII Library | 22/11/2001 | Volume 82, Issue | Journals |