Isolates of a fungus isolated from anthracnose lesions on mango fruits in Okinawa produced perithecia on potato dextrose agar and were identified as Glomerella cingulata Group A (anamorph: Colletotrichum gloeosporioides) based on cultural and morphological characteristics, PCR assay using specific primers and glycerol-3-phosphate dehydrogenase (GPDH) sequence homology. Pathogenicity of the isolates to mango was demonstrated by placing mycelial disks on wounded healthy leaves and fruits and reisolating the fungus from the diseased fruit. This is the first report of confirming the production of perithecia by G. cingulata causing anthracnose of mango fruits in Japan.
A severe postharvest rot of mango fruits has been found in Okinawa Prefecture, Japan since 2000. A fungus frequently isolated from the diseased fruits was identified as Lasiodiplodia theobromae sensu stricto based on morphological and cultural characteristics and sequence homology of EF1-α region. The isolates reproduced the symptoms on mango fruits in an inoculation test and were reisolated from the inoculated fruits. This report is the first of stem-end rot of mango caused by L. theobromae in Japan, and we propose the name "jikugusare-byo" in Japanese.