Journal of the Rubber Research Institute of Sri Lanka

Permanent URI for this collectionhttps://dl-rri.nsf.gov.lk/handle/1/1399

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1996 - 19982

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Author: search.filters.author.Jayasinghe, C.K.Subject: search.filters.subject.Botany

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    Cylindrocladium quinquesptatum. cultural characteristics and reproductive morphology of the clove isolate IMI 342173 from Sri Lanka
    (Rubber Research Institute of Sri Lanka. Agalawatte, 1996) Jayasinghe, C.K.; Wijesundera, R.L.C.
    Cylindrocladium quinquesptatum boeddijn and reitsma, is a destructive pathogen of eugenia caryophyllata (clove) and is identified as a potential pathogen of hevea barasiliensis in Sri Lanka. Further, the fungus infescts a number of ornamental and forest trees. We report using photomicrographs the cultural characteristics abd the morphology of the reproductive structures; condida, vesicle, stipe, phialides, chlamydospores and microsclerotia of clove isolate IMI 342173. Our investigations demonstrates that the isolate IMI 342173 from Sri Lanka resembles the isolates of C. quinqueseptatum obtained from different hosts in other parts of the world.
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    Cultural characteristics and reproductive morphology of Geotrichum sp.. a guide to distinguish Geotrichum from Rigidoporus microporus
    (Rubber Research Institute. Agalawatta, 1998) Jayasinghe, C.K.; Wettasinghe, J.L.P.C.
    Culture characteristics of Geotrichum sp. isolate IMI 354411, a fungus responsible for the saprophytic colonization on Hevea roots are described. It was also shown that this fungus could be easily distinguished from Regidoporus lignosus, a devastating pathogens of Hevea roots, by the zonate and cloudy appearence of its colonies on malt agar with a cream undersurface and the disarticulating hyphae which later break upto arthric conidia.