New species of Diaporthe (Diaporthaceae, Diaporthales) from Bauhiniavariegata in China.

Diaporthe species are known as endophytes, saprobes and pathogens infecting a wide range of plants and resulting in important crop diseases. In the present study, four strains of Diaporthe were obtained from diseased leaves of Bauhiniavariegata in Guangdong Province, China. Phylogenetic analyses were conducted to identify these strains using five gene regions: internal transcribed spacer (ITS), calmodulin ( cal ), histone H3 ( his3 ), translation elongation factor 1-α ( tef1 ) and β-tubulin ( tub2 ). The results combined with morphology revealed two new species of Diaporthe named D.bauhiniicola in D.arecae species complex and D.guangzhouensis in D.sojae species complex.