The mechanism of some fungal infections of the needles of Austrian pine and Scotch pine
1989
Karadzic, D. (Sumarski fakultet, Beograd (Yugoslavia))
The paper presents the results obtained by investigating the mechanism of infection with fungi, Dothistroma septospora, Cyclaneusma minus, Lophodermium seditiosum and Sphaeropsis sapinea. D. septospora first forms the appressorium in the stoma and then hyphae further penetrate the mesophyll. C. minus penetrates the stoma without previous appressarium formation. L. seditiosum forms appressorium on the surface of the needle and then hyphae penetrate directly through the cuticle and the walls of epidermal cells. S. sapinea penetrates either through the bark of young shoots or through the stomata of needles but before penetration, the aggregations of hyphae are formed.
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