The biological function of Lentinula edodes in a myco-heterotrophic orchid, Erythrorchis ochobiensis was examined, using one local variant each from Japan (JPN), Papua New Guinea (PNG) and New Zealand (NZ). All variants induced seed germination: PNG and NZ isolates were effective at 25°C and JPN isolate showed the highest germination rate at 30°C Germinated seeds developed into plants and formed normal endomycorrhizas. Hence, it is concluded that L. edodes has a perfect symbiotic potential with E. ochobiensis, though it has not been observed in the root of the orchid in the field.
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Hidetaka Umata (1998) studied this question.
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