Actividad antagónica de hongos endófitos de plantas medicinales del Ecuador sobre bacterias patógenas / Antagonic activity of endophytic fungi from medicinal plants of Ecuador on pathogenic bacteria
Bol. micol
;
21: 49-53, dic. 2006. ilus, tab
Article
in Spanish
| LILACS
| ID: lil-476906
RESUMEN
Mediante una investigación a lo largo del sector suburbano de la ciudad de Loja-Ecuador, dedicada al cultivo de plantas medicinales, se aíslaron los hongos endófitos asociados a Baccharis latifolia (Ruiz & Pav.) Pers., Baccharis obtusifolia Kunth, Piper barbatum Kunth, Borreria laevis (Lam.) Grises, Chuquiragua jussieui J.F. Gmel y Bidens andicola Kunth. Los taxa fúngicos más frecuentes fueron Alternaria, Aspergillus, Epicoccum, Fusarium, Nigrospora, Phoma, además de algunos representantes de los grupos coelomycetes, sinnematosos y Zygomycota. La mayor dominancia fúngica correspondió a integrantes de los denominados Mycelia sterilia, siendo de particular interés como posibles endófitos. Se evaluó además la interacción antagónica de siete aislados fúngicos frente a bacterias Staphylococcus aureus, Klebsiella pneumomiae, Pseudomonas aeruginosa y Escherichia coli. La mayoría de las cepas fúngicas estudiadas presentaron actividad, pero los resultados más prometedores se evidenciaron en un aislado de Mycelia sterilia.
ABSTRACT
As a result of an investigation carried out along the suburban zone of the city of Loja-Ecuador, engaged in the growing of medicinal plants, endophytic fungi associated to Baccharis latifolia (Ruiz & Pav.) Pers., Baccharis obtusifolia Kunth, Piper barbatum Kunth, Borreria laevis (Lam) Grises, Chuquiragua jussieui J.F. Gmel and Bidens andicola Kunth were isolated. Fungal taxa most frequently appearing were Alternaria, Aspergillus,Epicoccum, Fusarium, Nigrospora, Phoma besides some representatives of the groups coelomycetes, synnematousand Zygomycota. Major fungal dominance was found in elements of the so-called Mycelia sterilia, which hada special interest as possible endophyte. Besides the antagonic interaction of seven fungal isolations in front of bacteria was assessed Staphylococcus aureus, Klebsiella pneumomiae, Pseudomonas aeruginosa and Escherichia coli. Most of fungal strains investigated revealed activity , however most promising results could be seen in an isolation of Mycelia sterilia.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Plants, Medicinal
/
Bacteria
/
Fungi
/
Antibiosis
Country/Region as subject:
South America
/
Ecuador
Language:
Spanish
Journal:
Bol. micol
Journal subject:
Microbiology
Year:
2006
Type:
Article
Affiliation country:
Ecuador
/
Italy
Institution/Affiliation country:
Universidad Politécnica Salesiana/EC
/
Universidad Técnica particular de Loja/EC
/
Università di Pavia/IT
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