Diversity and antimicrobial activities of the fungal endophyte community associated with the traditional Brazilian medicinal plant Solanum cernuum Vell. (Solanaceae)
The diversity and antimicrobial activity of endophytic fungi associated with the Brazilian medicinal plant Solanum cernuum Vell. were studied during summer and winter seasons. A total of 246 fungal isolates were obtained, including 225 filamentous fungi and 21 yeasts. They were identified by morphol...
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Published in | Canadian journal of microbiology Vol. 58; no. 1; pp. 54 - 66 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Canada
NRC Research Press
01.01.2012
Canadian Science Publishing NRC Research Press |
Subjects | |
Online Access | Get full text |
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Summary: | The diversity and antimicrobial activity of endophytic fungi associated with the Brazilian medicinal plant
Solanum cernuum
Vell. were studied during summer and winter seasons. A total of 246 fungal isolates were obtained, including 225 filamentous fungi and 21 yeasts. They were identified by morphological, physiological, and molecular methods. Fifty-five different taxa represented by the phyla Ascomycota (33 taxa), Basidiomycota (21 taxa), and Zygomycota (one taxon) were identified. The most abundant taxa were closely related to
Arthrobotrys foliicola
,
Colletotrichum gloeosporioides
,
Coprinellus radians
,
Glomerella acutata
,
Diatrypella frostii
,
Phoma glomerata
,
Mucor
sp.,
Phlebia subserialis
,
Phoma moricola
,
Phanerochaete sordida
, and
Colletotrichum
sp. A total of 265 fungal extracts were screened and 64 (26.01%) displayed antimicrobial activities. Among these extracts, 18 (28.12%) presented antibacterial and antifungal activities, 42 (65.62%) displayed selective antibacterial activity, and four (6.25%) exhibited only antifungal activity. The best values of minimum inhibitory concentration were obtained from extracts of
Cryptococcus rajasthanensis
, Glomerella acutata,
Leptosphaeria
sp., and Phoma glomerata ranging from 7.8 to 15.62 µg/mL. This study is the first survey of the endophytic fungi community associated with S. cernuum, and our results show that they can represent a promising source of bioactive compounds. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 |
ISSN: | 0008-4166 1480-3275 |
DOI: | 10.1139/w11-105 |