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Actualidades Biológicas
Article . 2015
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Diversidad de la micobiota endófita de Cattleya percivaliana y Cattleya trianaei cultivadas en invernadero

Authors: Lizarazo Medina, Pilar Ximena; Gutiérrez Gallo, Ana Isabel; Mendoza Salazar, Marcelina María;

Diversidad de la micobiota endófita de Cattleya percivaliana y Cattleya trianaei cultivadas en invernadero

Abstract

RESUMEN: Los microorganismos endófitos se desarrollan asintomáticamente en el interior de los tejidos. En este estudio se aislaron hongos endófitos de hojas y raíces de Cattleya percivaliana y Cattleya trianaei cultivadas bajo condiciones de invernadero. Se obtuvieron 323 hongos endófitos a partir de 4.800 fragmentos de tejido; estos aislados fueron clasificados en 14 géneros caracterizados macroscópica y microscópicamente, y cinco morfotipos no pudieron ser identificados. Se observaron diferencias en el número de plantas colonizadas por especie vegetal y en la diversidad de los endófitos a nivel de tejido, siendo mayores en C. trianaei y en hoja, respectivamente. Se identificaron géneros que colonizaron exclusivamente un tejido, o ambos tejidos. En hoja se registraron: Chromelosporium, Cladosporium, Exophiala, Gonatobotrys, Monilinia y Nodulisporium; mientras que Curvularia, Gloeosporium y cinco morfotipos no identificados colonizaron solamente la raíz. Los géneros Aureobasidium, Botryotrichum, Colletotrichum, Fusarium, Sclerotium y Trichoderma crecieron en ambos tejidos. El género Fusarium fue el género más abundante en raíz y, Colletotrichum y Sclerotium en hoja.

ABSTRACT: Endophytic microorganisms are characterized by asymptomatic development inside tissues. In this study we isolated endophytic fungi of leaves and roots from Cattleya percivaliana and Cattleya trianaei grown under greenhouse conditions. We isolated 323 endophytic fungi from 4,800 tissue fragments: these isolates were classified into 14 genera characterized macroscopically and microscopically, and ve morphotypes could not be identified. A higher number of individuals of C. trianaei were colonized by fungi, and a higher diversity of endophytes were found in leaves. Some genera exclusively colonized one tissue, or both tissues. In leaves, we registered Chromelosporium, Cladosporium, Exophiala, Gonatobotrys, Monilinia, and Nodulisporium while Curvularia, Gloeosporium, and ve unidentified morphotypes only colonized roots. The genera Aureobasidium, Botryotrichum, Colletotrichum, Fusarium, Sclerotium, and Trichoderma grew on both tissues. Fusarium was the most abundant genus in roots and, Colletotrichum and Sclerotium in leaf tissue.

Country
Colombia
Keywords

QH301-705.5, orchidaceae, Fungi, Orquídeas, Micobiota, Mycology, 630, Hongos, diversity, endófito, Hongos endófitos, diversidad, fungi, Micología, Biology (General), endophyte, hongo

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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