Abstract
The morphological and cultural characteristics ofHendersonia acicola Munch & Tub., isolated from the needles ofPinus sylvestris var.mongolica Litvin, were described. The fungi was cultured on three kinds of media and the speed of mycelial growth and the required time to produce conidia were different. On the medium of needle decoction agar, the fungi grew fast and produced conidia after 5 days culturing. On PDA came second and it needed 7 days to produce conidia. On the medium of maize flour agar, it grew slowly and produces conidia after 27 days incubating. The fungi cannot produce conidia under darkness on all three kinds of media. The conidia can germinate at 8°C–28°C. The optimum conditions for conidia to germinate are 25°C, RH 100% and pH 4 and under these conditions it only takes four hours for conidia to germinate. The conidia germination is not affected by light
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