Repositorio
Institucional

Acuna, Jacquelinne J.

Zhang, Qian

Araya, Macarena M.

Astorga-Elo, Marcia

Velasquez, Gabriela

Rilling, Joaquin I.

Campos, Marco

Sadowsky, Michael J.

Jorquera, Milko A.

Composition and Potential Functions of Rhizobacterial Communities in a Pioneer Plant from Andean Altiplano

MDPI

DIVERSITY-BASEL

en

Plant microbiota that associate with pioneer plants are essential to their growth and adaptation to harsh conditions found in the Central Volcanic Zone of the Andes. In this sense, the rhizosphere of pioneer species represents a unique opportunity to examine how bacterial communities are recruited and support the growth of plants under abiotic stress conditions, such low nutrient availability, high solar irradiation, water scarcity, soil salinity, etc. In this study, we explored the community composition and potential functions of rhizobacteria obtained from specimens of Parastrephia quadrangularis (Meyen) Cabrera, commonly called Tola, grown on the slopes of the Guallatiri, Isluga, and Lascar volcanoes in the Atacama Desert of Chile by using 16S rRNA amplicon sequencing. Sequence analysis showed that the Actinobacteria, Proteobacteria, Acidobacteria, and Bacteroidetes were the most abundant phyla of the rhizobacterial communities examined. A similar diversity, richness, and abundance of OTUs were also observed in rhizosphere samples obtained from different plants. However, most of OTUs were not shared, suggesting that each plant recruits a specific rhizobacterial communities independently of volcanoes slope. Analyses of predicted functional activity indicated that the functions were mostly attributed to chemoheterotrophy and aerobic chemoheterotrophy, followed by nitrogen cycling (nitrate reduction and denitrification), and animal parasites or symbionts. In addition, co-occurrence analysis revealed that complex rhizobacterial interactions occur in P. quadrangularis rhizosphere and that members of the Patulibacteraceae comprise a keystone taxon. This study extends our understanding on the composition and functions of the rhizobiome, which is pivotal for the adaptability and colonization of pioneer plant to harsh conditions of the Atacama Desert, widely recognized as the driest place on planet Earth.

artículo original

This study was funded by the National Fund for Scientific and Technological Development (FONDECYT) project no. 1201386 and 1181050 (to M.A.J. and J.J.A.) from Chile's National Research and Development Agency (ANID), by the National Competition for the Attraction of International Advanced Human Capital, Short Stay Modality (MEC) no. 80180048 (to J.J.A., L.Y.W. and M.A.J.) from the International Cooperation Program (PCI-ANID), by Science and Technology Research Partnership for Sustainable Development (SATREPS, JST/JICA, Japan) project code JPMJSA1705 (to M.A.J. and J.J.A.). by Fund for Scientific and Technological Equipment (FONDEQUIP) code EQM170171 (to M.A.J), by Universidad de La Frontera (DIUFRO) project code DI21-0044, and GENERA-UA-2019-012 (to M.A.-E.) Universidad Autonoma de Chile, and by the Minnesota Corn Research and Promotion Council (to Q.Z. and M.J.S) and the Minnesota Agricultural Experiment Station (to M.J.S.).

Este estudio fue financiado por el Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT) proyecto no. 1201386 y 1181050 (a M.A.J. y J.J.A.) de la Agencia Nacional de Investigación y Desarrollo (ANID) de Chile, por el Concurso Nacional para la Atracción de Capital Humano Avanzado Internacional, Modalidad de Corta Estancia (MEC) núm. 80180048 (a J.J.A., L.Y.W. y M.A.J.) del Programa de Cooperación Internacional (PCI-ANID), por la Asociación de Investigación en Ciencia y Tecnología para el Desarrollo Sostenible (SATREPS, JST/JICA, Japón), código de proyecto JPMJSA1705 (a M.A.J. y J.J.A.). por Fondo de Equipamiento Científico y Tecnológico (FONDEQUIP) código EQM170171 (a M.A.J), por la Universidad de La Frontera (DIUFRO) código de proyecto DI21-0044, y GENERA-UA-2019-012 (a M.A.-E.) Universidad Autónoma de Chile, y por el Consejo de Investigación y Promoción del Maíz de Minnesota (a Q.Z. y M.J.S) y la Estación Experimental Agrícola de Minnesota (a M.J.S.).

This study was funded by the National Fund for Scientific and Technological Development (FONDECYT) project no. 1201386 and 1181050 (to M.A.J. and J.J.A.) from Chile's National Research and Development Agency (ANID); by the National Competition for the Attraction of International Advanced Human Capital, Short Stay Modality (MEC) no. 80180048 (to J.J.A., L.Y.W. and M.A.J.) from the International Cooperation Program (PCI-ANID); by Science and Technology Research Partnership for Sustainable Development (SATREPS; JST/JICA, Japan) project code JPMJSA1705 (to M.A.J. and J.J.A.). by Fund for Scientific and Technological Equipment (FONDEQUIP) code EQM170171 (to M.A.J); by Universidad de La Frontera (DIUFRO) project code DI21-0044, and GENERA-UA-2019-012 (to M.A.-E.) Universidad Autonoma de Chile; and by the Minnesota Corn Research and Promotion Council (to Q.Z. and M.J.S) and the Minnesota Agricultural Experiment Station (to M.J.S.).

Este estudio fue financiado por el Fondo Nacional de Desarrollo Científico y Tecnológico (FONDECYT) proyecto no. 1201386 y 1181050 (a M.A.J. y J.J.A.) de la Agencia Nacional de Investigación y Desarrollo (ANID) de Chile; por el Concurso Nacional para la Atracción de Capital Humano Avanzado Internacional, Modalidad de Corta Estancia (MEC) núm. 80180048 (a J.J.A., L.Y.W. y M.A.J.) del Programa de Cooperación Internacional (PCI-ANID); por la Asociación de Investigación en Ciencia y Tecnología para el Desarrollo Sostenible (SATREPS; JST/JICA, Japón), código de proyecto JPMJSA1705 (a M.A.J. y J.J.A.). por Fondo de Equipamiento Científico y Tecnológico (FONDEQUIP) código EQM170171 (a M.A.J); por la Universidad de La Frontera (DIUFRO) código de proyecto DI21-0044, y GENERA-UA-2019-012 (a M.A.-E.) Universidad Autónoma de Chile; y por el Consejo de Investigación y Promoción del Maíz de Minnesota (a Q.Z. y M.J.S) y la Estación Experimental Agrícola de Minnesota (a M.J.S.).

10.3390/d14010014

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Ecología

Microbiología

Ecología

Botánica

Composition and Potential Functions of Rhizobacterial Communities in a Pioneer Plant from Andean Altiplano

artículo original

version publicada

CC BY 4.0

CC BY 4.0

acceso abierto

acceso abierto

ANID-FONDECYT 1201386

ANID-FONDECYT 1181050

SATREPS JPMJSA1705

ANID-FONDEQUIP EQM170171

UFRO DI21-0044

UA GENERA-UA-2019-012

ANID 80180048

ANID FONDECYT 1201386

ANID FONDECYT 1181050

ANID FONDEQUIP EQM170171

WOS:000758437800001