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Occurrence of Coated Vesicles and Alterations in Plasmalemma in Tomato Leaf Cells Infected by Phytophthora infestans Mont. (de Bary) After Treatment with Fosetyl‐Al
Author(s) -
Jiang Y.
Publication year - 1996
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1996.tb01490.x
Subject(s) - phytophthora infestans , biology , vesicle , haustorium , phycomycetes , cell wall , botany , fungicide , horticulture , inoculation , biochemistry , host (biology) , ecology , membrane , blight
Treatment of tomato ( Lycopersicum esculentum Mill. cv. Bonny Best) leaves with the systemic fungicide Fosetyl‐Al (Tris‐o‐ethyl phosphonate aluminium) induced the formation of haustorial encasements or cell wall deposits in the leaf cells infected by Phytophthora infestans Mont (de Bary). Numerous coated vesicles and extremely invaginated, saclike plasmalemma were found in close spatial association with wall deposits in haustorium infected cells. Wall deposits in non‐infected cells bordering degenerated, infected, cells were also accompanied by the presence of coated vesicles. In leaf tissues without treatment with Fosetyl‐Al, no substantial change in the plasmalemma of infected cells was observed and coated vesicles were found only in close contact with large, smooth‐surfaced vesicles. No coated vesicles were found associated with wall deposits in non‐infected, neighbouring cells. The results are discussed in connection with possible functions of both coated vesicles and plasmalemma.