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HOST‐PARASITE RELATIONSHIPS IN SOOTY BLOTCH DISEASE OF WHITE CLOVER
Author(s) -
Camp R. R.,
Whittingham W. F.
Publication year - 1972
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1972.tb10186.x
Subject(s) - biology , botany , hypha , host (biology) , white (mutation) , chloroplast , trifolium repens , parasite hosting , fungus , electron microscope , ultrastructure , petiole (insect anatomy) , microbiology and biotechnology , ecology , genetics , genus , gene , physics , world wide web , computer science , optics
Leaflets of Trifolium repens L. parasitized by Cymadothea trifolii (Pers.) Wolf were examined by light and electron microscopy to ascertain cellular aberrations induced by the fungus. The lamellar organization of the chloroplasts became disrupted, with a concomitant increase in the amount of osmophilic material. Many of the cells in diseased tissues exhibited tubule‐like aggregations, which often were arranged in a highly ordered pattern. Curious extracytoplasmic, dumbbell‐shaped structures extending between host cells and contiguous hyphae were also observed in diseased tissue.