Endophytic fungi in evergreen shrubs in western Oregon: A preliminary study
作者:
Orlando Petrini,
Jeffrey Stone,
Fanny E. Carroll,
期刊:
Canadian Journal of Botany
(NRC Available online 1982)
卷期:
Volume 60,
issue 6
页码: 789-796
ISSN:0008-4026
年代: 1982
DOI:10.1139/b82-102
出版商: NRC Research Press
数据来源: NRC
摘要:
Endophytic fungi were isolated from five species of broad-leaved evergreen shrubs from 16 sites in western Oregon. Rates of infection were 76% forMahonia nervosa, 44% forArctostaphylos uva-ursi, 37% forGaultheria shallon, 29% forMahonia aquifolium, and 25% forUmbellularia californica. Incidence of leaf infections by more than one fungal taxon was 20–56%, 72–90% of which had only two infections. Rates of overall infection were higher in samples taken from densely wooded sites than in samples taken from more open sites. A pattern of species dominance is seen where the most common endophyte of a given host is isolated less frequently from other hosts; less commonly isolated endophytes appear to be less host specific. The most commonly isolated endophytes includePhyllosticta pyrolaeonA. uva-ursiandG. shallon, Leptothyrium berberidisonM. nervosa, Septogloeumsp. onM. nervosaandU. californica, andPhomopsissp., predominantly onM. aquifolium, but present on all hosts. Some of the fungi isolated from evergreen shrubs in this study were previously isolated from conifer needles; however, most represent new records.
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