Repositorio
Institucional

Cornejo, Pablo

Fernandez, Natalia, V#Fontenla, Sonia B.#Moguilevsky, Denise#Meier, Sebastian#Rilling, Joaquin

Nothofagus pumilio forest affected by recent tephra deposition in northern Patagonia. II-Shifts in diversity and structure of rhizosphere fungal communities

SOC CHILENA CIENCIA SUELO

JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION

en

Volcanic eruptions have a significant effect on ecosystems, including soil and its fungal communities. Due to the eruption of the Puyehue-Cordon Caulle in 2011, thick tephra deposits accumulated in several Nothofagus pumilio forests in Northern Patagonia. The tephra deposition affected plant establishment and development during the post-eruption period. In this work we analyzed rhizosphere fungal communities associated with N. pumilio seedlings at three study sites sampled three years after the eruption, two with a thick tephra layer (50 cm) and a third site with no tephra deposition. Denaturing gradient gel electrophoresis (DGGE) was performed for the different fungal communities (Ascomycetes, Basidiomycetes and Total fungi). We found clear shifts in rhizosphere fungal communities, especially for Basidiomycetes and Total fungi. Site-related characteristics, such as type of substrate, light intensity and the existence of understory and previous mycelial networks, seemed to be the main factors determining the structure of these fungal communities. Given their sensitivity to different types of environmental change, these microbial communities could be used as bioindicators. Specifically, Basidiomycetes and total fungi seem to be better bioindicators of environmental changes than ascomycetes. The results shown here contribute to the understanding of how fungal communities respond to disturbance, an important issue in the evaluation of how ecosystem processes might be affected in areas commonly subjected to geological risks, such as volcanism. This information is also relevant to the planning and successful implementation of restoration activities based on seedling optimization by rhizosphere fungi.

Artículo original

We are grateful to Mr. Jorge Puga and Lic. Pablo Albear for collaborating in sampling and we thank National Park Administration for giving us permission to work in a protected area (Permission No 1280/17). We also thank BSc. (Hons) Audrey Urquhart for language revision. Financial support for this work was provided by grants: PICT2014-1459 (FONCyT), and by the binational Project CH/13/01 (MINCyT, Argentina) - PCCI130008 (CONICYT, Chile).

Agradecemos al Sr. Jorge Puga y al Lic. Pablo Albear su colaboración en el muestreo y a la Administración del Parque Nacional por permitirnos trabajar en un área protegida (Permiso N.° 1280/17). También agradecemos a la Licenciada en Ciencias (con honores) Audrey Urquhart por la revisión del texto. El apoyo financiero para este trabajo fue proporcionado por las subvenciones PICT2014-1459 (FONCyT) y del Proyecto Binacional CH/13/01 (MINCyT, Argentina) - PCCI130008 (CONICYT, Chile).

10.4067/S0718-95162018005001503

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DGGE# Nothofagus pumilio# Puyehue-Cordon Caulle volcanic complex# Pyroclastic material# Rhizosphere fungal communities

http://dx.doi.org/10.4067/S0718-95162018005001503

Plant Sciences# Environmental Sciences# Soil Science

DGGE# Nothofagus pumilio# complejo volcánico Puyehue-Cordón Caulle# Material piroclástico# Comunidades de hongos de la rizosfera.

Micología

Ecología

Vulcanología

WOS:000441184300015

<i>Nothofagus pumilio</i> forest affected by recent tephra deposition in northern Patagonia. II-Shifts in diversity and structure of rhizosphere fungal communities

Artículo original

version publicada

SOC CHILENA CIENCIA SUELO

JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION

Ciencias Vegetales# Ciencias Ambientales# Ciencia del suelo

0718-9516

en

FONCyT PICT2014-1459#MINCyT CH/13/01#ANID FONDECYT PCCI130008

FONCyT PICT2014-1459

MINCyT Argentina CH/13/01

ANID CONICYT PCCI130008

We are grateful to Mr. Jorge Puga and Lic. Pablo Albear for collaborating in sampling and we thank National Park Administration for giving us permission to work in a protected area (Permission No 1280/17). We also thank BSc. (Hons) Audrey Urquhart for language revision. Financial support for this work was provided by grants: PICT2014-1459 (FONCyT), and by the binational Project CH/13/01 (MINCyT, Argentina) - PCCI130008 (CONICYT, Chile).

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acceso abierto

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