Laboratory tests to assay responses of rubber (Hevea brasiliensis) genotypes to Phytophthora meadii

Autor: R. L. C. Wijesundera, K. E. Jayasuriya
Rok vydání: 2009
Předmět:
Zdroj: Journal of the Rubber Research Institute of Sri Lanka. 89:1
ISSN: 2550-2972
DOI: 10.4038/jrrisl.v89i0.1843
Popis: Variability in response to Phytophthora infections by different rubber (Hevea brasiliensis) genotypes is attributed to biochemical reactions occur in petioles upon infections. Latex is the main product of the rubber tree which is present in all tissues possibly contributing to the biochemical responses. Latex serum from tolerant genotypes significantly stimulated germination of P. meadii zoospores, while that from susceptible genotypes did not stimulate. Extracts from P. meadii-infected petioles of tolerant genotypes significantly reduced P. meadii zoospore germination, while Myelial growth on liquid medium was significantly inhibited by the healthy petiole extracts of tolerant genotypes. The study explored the possibility of using these criteria for laboratory assay of new rubber genotypes to P. meadii.
Databáze: OpenAIRE