Two new species of Diaporthe (Diaporthaceae, Diaporthales) associated with Camellia oleifera leaf spot disease in Hainan Province, China

Two new species of Diaporthe (Diaporthaceae, Diaporthales) associated with Camellia oleifera leaf spot disease in Hainan Province, China

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Tea-oil tree (Camellia oleifera Abel.) is an important edible oil woody plant with a planting area over 3,800,000 hectares in southern China.Species of Diaporthe inhabit a wide range of plant hosts as Protectors plant pathogens, endophytes and saprobes.Here, we conducted an extensive field survey in Hainan Province to identify and characterise Diaporthe species associated with tea-oil leaf spots.

As a result, eight isolates of Diaporthe were obtained from symptomatic C.oleifera leaves.These isolates were studied, based on morphological and phylogenetic analyses of partial ITS, cal, his3, Ginseng tef1 and tub2 gene regions.Two new Diaporthe species (D.

hainanensis and D.pseudofoliicola) were proposed and described herein.