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Histopathology of Pinus elliottii var. elliottii needles infected by Ploioderma hedgcockii
Author(s) -
Jewell F. F.
Publication year - 1994
Publication title -
european journal of forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 0300-1237
DOI - 10.1111/j.1439-0329.1994.tb00826.x
Subject(s) - biology , pinus <genus> , hypha , fungus , botany , dead wood , endodermis , colonization , ultrastructure , microbiology and biotechnology , ecology , biodiversity
The ascomycete Ploioderma hedgcockii is unique in speculating; on living, as well as on dead needle tissues. The fungus was examined in green and dead needles of Pinus elliottii var. elliottii using light microscopy. Teleomorph and anamorph stromata originated from sub‐hypodermal host tissue. In green needles, the hypnae where restricted to tissues outside the endodermis. The mesophyll cells adjacent to stromata showed abnormalities; the mesophyll distal to the stromata showed no symptoms despite heavy colonization by intercellular hyphae. In dead needles, all tissues, with the exception of vascular tissues, where colonized by inter‐ and intracellular hyphae.