Microcyclus ulei pdf free

Summary genetic resistance components of the hevea brasiliensis. Microcyclus ulei is the causative agent of south american leaf blight. Pdf foliar endophytic fungi from hevea brasiliensis and. Pdf bypassing of a polygenic microcyclus ulei resistance. Contingency plan for south american leaf blight microcyclus ulei. Pdf endophytic fungi live inside plants as symbionts for at least one period of their life cycle. He examined infected leaves from native rubber trees collected by ernst heinrich ule at the jurua river, brazil in 1901 and near iquitos, peru in 1902 wellman, 1972. Latest pest reports international plant protection. Latest pest free areas international plant protection. Pdf foliar endophytic fungi from hevea brasiliensis and their. Notes on taxonomy and nomenclature top of page south american leaf blight was first mentioned by hennings 1904, who briefly described the pathogen. This fungal disease caused by the ascomycete microcyclus ulei, single handedly managed to prevent natural rubber production on a.

Bypassing of a polygenic microcyclus ulei resistance in rubber tree. A rubber trees durable resistance to microcyclus ulei is conferred by a qualitative gene and a major quantitative resistance factor. This is to inform you that, given the current covid19 outbreak in italy, considering the travel restrictions being implemented by many countries and to ensure the safety and health of all participants, the fifteenth session of the commission on phytosanitary measures cpm15 has been postponed. The potential of the south american leaf blight as a biological agent. Pdf physiological characteristics of microcyclus ulei p. Option 1 exdoc endorsement no 1763 1 a representative sample was inspected and found to be free of the spores of south american leaf blight microcyclus ulei. A rubber trees durable resistance to microcyclus ulei is. The disease aps journals the american phytopathological society.

Rands 1924 reported that the pathogen needs 1012 hours of free water on the leaves for. Microcyclus ulei south american leaf blight of rubber. Protection against south american leaf blight of rubber in asia and. Microcyclus ulei south american leaf blight of rubber cabi. Bypassing of a polygenic microcyclus ulei resistance in rubber tree, analyzed by qtl detection. The free sporulating strain appeared to be associated with resistant. Estimates of the period of leaf wetness needed for infection vary. In the report sgp012 posted on 2 sep 2012, singapore reported that a detection survey on microcyclus ulei from 2005 to 2010 conducted on rubber enclaves, imports from salb endemic countries and passenger arrivals in singapore revealed the status of salb as. Several races of this pathogen have been described in brazil based on a series of diverse differential clones. Foliar endophytic fungi from hevea brasiliensis and their antagonism on microcyclus ulei article pdf available in fungal diversity 471.