Repositorio UFRO · Omeka S

Diversity, Community Structure, and Potential Functions of Root-Associated Bacterial Communities of Different Wheat (Triticum aestivum) Cultivars under Field Conditions

Primer Autor	Jorquera, Milko A.
Co-autores	Acuna, Jacquelinne J. Rilling, Joaquin I. Inostroza, Nitza G. Manquian, Javiera Zhang, Qian Gupta, Vadakattu V. S. R.
Título	Diversity, Community Structure, and Potential Functions of Root-Associated Bacterial Communities of Different Wheat (Triticum aestivum) Cultivars under Field Conditions
Editorial	MDPI
Revista	AGRONOMY-BASEL
Lenguaje	en
Resumen	The wheat (Triticum aestivum) microbiome is essential to its growth and adaptation under the current climatic crisis. Wheat breeding programs are often mainly focused on obtaining more resistant cultivars, thus, plant genotype-by-microbiome interactions have gained attention. In this sense, local wheat cultivars represent a unique opportunity to examine how bacterial communities are recruited and support plant growth under field conditions. In this study, we explored the diversity, community structure, and potential functions of root-associated bacterial communities of four Chilean wheat (Triticum aestivum) cultivars under field conditions through Illumina MiSeq. Analyses showed that Proteobacteria was the most abundant phylum in root endosphere (51.1 to 74.4%) and rhizosphere samples (39.3 to 44.9%) across wheat cultivars. Significant differences (p = 0.05) in alpha and beta diversity were observed in root endosphere and rhizosphere samples, independently of wheat genotypes. Potassium was identified as the main factor driving the rhizosphere microbiomes of wheat. A higher proportion of shared operational taxonomic units (OTUs) were found in rhizosphere (mainly Pseudomonas, Flavobacterium, and Janthinobacterium) compared with root endosphere (dominated by Delftia, Acinetobacter, Stenotrophomonas, Kaistobacter) samples across all cultivars. Analyses of larger predicted functional activities revealed that chemoheterotrophy and aerobic chemoheterotrophy were more observed in the root endosphere environment, whereas among the minor functions, nitrogen cycling was the more predicted trait, related to rhizosphere samples. A co-occurrence analysis revealed complex bacterial interactions in wheat cultivars' niche microbiomes identifying three (Comamonadaceae, Enterobacteraceae, Micrococcaceae) and four (Corynebacteraceae, Dermabacteraceae, Xanthomonadaceae, Staphylococcaceae) families as keystone taxa for the root endosphere and rhizosphere, respectively. It is suggested that such findings on the differences in root microbiomes associated with wheat cultivars under field conditions would help to develop new cultivars with abilities to recruit specific bacterial communities.
Fecha Publicación	2023
Tipo de Recurso	artículo original
doi	10.3390/agronomy13051392
Formato Recurso	PDF
Palabras Claves	root microbiome wheat cultivars bacterial diversity putative functions
Ubicación del archivo	http://dx.doi.org/10.3390/agronomy13051392
Categoría OCDE	Agricultura Ciencias Vegetales
Materias	microbioma de la raíz cultivares de trigo diversidad bacteriana funciones putativas
Identificador del recurso (Mandatado-único)	artículo original
Versión del recurso (Recomendado-único)	versión publicada
License	CC BY 4.0
Condición de la licencia (Recomendado-repetible)	CC BY 4.0
Derechos de acceso	acceso abierto
Access Rights	acceso abierto
Id de Web of Science	WOS:000994673500001
Tipo de ruta	verde# dorado
Categoría WOS	Agricultura Ciencias Vegetales
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID-FONDECYT 1201386 ANID-FONDECYT 1221228 ANID-FONDECYT 3210594 DIUFRO DI21-0044 ICN2021_044 ANID FONDECYT 1201386 ANID FONDECYT 1221228 ANID FONDECYT 3210594 UFRO DI21-0044