Yeast and yeast‐like fungi associated with dry indehiscent fruits of Nothofagus nervosa in Patagonia, Argentina

Nothofagus nervosa (Raulí) is a native tree species that yields valuable timber. It was overexploited in the past and is currently included in domestication and conservation programs. Several research programs have focused on the characterization of epiphytic microorganisms because it has been demon...

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Authors: Fernandez, Natalia Verónica; Mestre, María Cecilia; Marchelli, Paula; Fontenla, Sonia Beatriz
Format: Article
Status:Published version
Publication date:2012
Country:Argentina
Institution:Instituto Nacional de Tecnología Agropecuaria
Repository:INTA Digital (INTA)
Language:English
OAI Identifier:oai:localhost:20.500.12123/4860
Online Access:https://academic.oup.com/femsec/article/80/1/179/601472
http://hdl.handle.net/20.500.12123/4860
https://doi.org/10.1111/j.1574-6941.2011.01287.x
Access Level:Open access
Keyword:Nothofagus
Levadura
Hongos
Filosfera
Domesticación de Plantas
Yeasts
Fungi
Phyllosphere
Plant Domestication
Nothofagus nervosa
Raulí
Región Patagónica
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author Fernandez, Natalia Verónica
author2 Mestre, María Cecilia
Marchelli, Paula
Fontenla, Sonia Beatriz
author2_role author
author
author
author_browse Fernandez, Natalia Verónica
Fontenla, Sonia Beatriz
Marchelli, Paula
Mestre, María Cecilia
author_facet Fernandez, Natalia Verónica
Mestre, María Cecilia
Marchelli, Paula
Fontenla, Sonia Beatriz
author_role author
collection INTA Digital (INTA)
description Nothofagus nervosa (Raulí) is a native tree species that yields valuable timber. It was overexploited in the past and is currently included in domestication and conservation programs. Several research programs have focused on the characterization of epiphytic microorganisms because it has been demonstrated that they can affect plant–pathogen interactions and/or promote plant growth. Although the microbial ecology of leaves has been well studied, less is known about microorganisms occurring on seeds and noncommercial fruits. In this work, we analyzed the yeast and yeast‐like fungi present on N. nervosa fruits destined for the propagation of this species, as well as the effects of fruit preservation and seed dormancy‐breaking processes on fungal diversity. Morphological and molecular methods were used, and differences between fungal communities were analyzed using a similarity index. A total of 171 isolates corresponding to 17 species were recovered, most of which belong to the phylum Ascomycota. The majority of the species develop mycelia, produce pigments and mycosporines, and these adaptation strategies are discussed. It was observed that the preservation process considerably reduced yeast and yeast‐like fungal diversity. This is the first study concerning microbial communities associated with this ecologically and economically important species, and the information presented is relevant to domestication programs.
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instname_str Instituto Nacional de Tecnología Agropecuaria
language eng
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publishDate 2012
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spelling Yeast and yeast‐like fungi associated with dry indehiscent fruits of Nothofagus nervosa in Patagonia, Argentina Fernandez, Natalia Verónica Mestre, María Cecilia Marchelli, Paula Fontenla, Sonia Beatriz Nothofagus Levadura Hongos Filosfera Domesticación de Plantas Yeasts Fungi Phyllosphere Plant Domestication Nothofagus nervosa Raulí Región Patagónica Nothofagus nervosa (Raulí) is a native tree species that yields valuable timber. It was overexploited in the past and is currently included in domestication and conservation programs. Several research programs have focused on the characterization of epiphytic microorganisms because it has been demonstrated that they can affect plant–pathogen interactions and/or promote plant growth. Although the microbial ecology of leaves has been well studied, less is known about microorganisms occurring on seeds and noncommercial fruits. In this work, we analyzed the yeast and yeast‐like fungi present on N. nervosa fruits destined for the propagation of this species, as well as the effects of fruit preservation and seed dormancy‐breaking processes on fungal diversity. Morphological and molecular methods were used, and differences between fungal communities were analyzed using a similarity index. A total of 171 isolates corresponding to 17 species were recovered, most of which belong to the phylum Ascomycota. The majority of the species develop mycelia, produce pigments and mycosporines, and these adaptation strategies are discussed. It was observed that the preservation process considerably reduced yeast and yeast‐like fungal diversity. This is the first study concerning microbial communities associated with this ecologically and economically important species, and the information presented is relevant to domestication programs. EEA Bariloche Fil: Fernández, Natalia Verónica. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Microbiología Aplicada y Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Mestre, María Cecilia. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Microbiología Aplicada y Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Marchelli, Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Unidad de Genética Ecológica y Mejoramiento Forestal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Fontenla, Sonia Beatriz. Universidad Nacional del Comahue. Centro Regional Universitario Bariloche. Laboratorio de Microbiología Aplicada y Biotecnología; Argentina Oxford Academic Press https://academic.oup.com/femsec/article/80/1/179/601472 http://hdl.handle.net/20.500.12123/4860 0168-6496 1574-6941 https://doi.org/10.1111/j.1574-6941.2011.01287.x
spellingShingle Yeast and yeast‐like fungi associated with dry indehiscent fruits of Nothofagus nervosa in Patagonia, Argentina
Fernandez, Natalia Verónica
Nothofagus
Levadura
Hongos
Filosfera
Domesticación de Plantas
Yeasts
Fungi
Phyllosphere
Plant Domestication
Nothofagus nervosa
Raulí
Región Patagónica
status_str publishedVersion
title Yeast and yeast‐like fungi associated with dry indehiscent fruits of Nothofagus nervosa in Patagonia, Argentina
title_full Yeast and yeast‐like fungi associated with dry indehiscent fruits of Nothofagus nervosa in Patagonia, Argentina
title_fullStr Yeast and yeast‐like fungi associated with dry indehiscent fruits of Nothofagus nervosa in Patagonia, Argentina
title_full_unstemmed Yeast and yeast‐like fungi associated with dry indehiscent fruits of Nothofagus nervosa in Patagonia, Argentina
title_short Yeast and yeast‐like fungi associated with dry indehiscent fruits of Nothofagus nervosa in Patagonia, Argentina
title_sort Yeast and yeast‐like fungi associated with dry indehiscent fruits of Nothofagus nervosa in Patagonia, Argentina
topic Nothofagus
Levadura
Hongos
Filosfera
Domesticación de Plantas
Yeasts
Fungi
Phyllosphere
Plant Domestication
Nothofagus nervosa
Raulí
Región Patagónica
topic_facet Nothofagus
Levadura
Hongos
Filosfera
Domesticación de Plantas
Yeasts
Fungi
Phyllosphere
Plant Domestication
Nothofagus nervosa
Raulí
Región Patagónica
url https://academic.oup.com/femsec/article/80/1/179/601472
http://hdl.handle.net/20.500.12123/4860
https://doi.org/10.1111/j.1574-6941.2011.01287.x