First report of Clonostachys rhizophaga as a pathogen of Dendrocalamus giganteus in Mozambique.

摘要

Dendrocalamus giganteus, a wild plant belonging to the family Poaceae, is widespread in Mozambique where it is used as a construction material. At the end of 2007, disease symptoms were observed on D. giganteus plants growing in the neighborhood of Maputo. Diseased plants showed longitudinal dark streaks on the stem surface to which corresponded internal vascular browning and chlorosis in wide leaves that gradually developed into necrosis. At the final stage of the disease, plants died. The pathogen was isolated from stems of affected plants and identified as Clonostachys rhizophaga based on the results of morphological and nucleotide sequence analyses as well as pathogenicity tests. This is thought to be the first report of C. rhizophaga for sub-Saharan Africa.