Modulation of Maize Rhizosphere Microbiota Composition by Inoculation with Azospirillum argentinense Az39 (Formerly A. brasilense Az39)

Primer Autor
Cassan, Fabricio
Co-autores
Coniglio, Anahi
Larama, Giovanni
Molina, Romina
Mora, Veronica
Torres, Daniela
Marin, Anelis
Ignacio Avila, Andres
Lede NoirCarlan, Coline
Erijman, Leonardo
Lucia Figuerola, Eva
de Souza, Emanuel Maltempi
Título
Modulation of Maize Rhizosphere Microbiota Composition by Inoculation with Azospirillum argentinense Az39 (Formerly A. brasilense Az39)
Editorial
SPRINGER INT PUBL AG
Revista
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
Lenguaje
en
Resumen
Azospirillum is one of the most important plant growths promoting rhizobacteria used in agriculture worldwide. However, few reports are available describing the effects of this bacterial genus on the inoculated plant microbiome. In order to determine whether A. argentinense inoculation modifies the bacterial microbiota associated with the maize rhizosphere, we performed a high-throughput 16S rRNA gene sequence analysis under experimental controlled conditions. Rhizosphere metagenomic DNA was obtained from plants inoculated and non-inoculated with A. argentinense Az39, and bulk soil was used as a reference treatment. Biodiversity, microbial community composition, co-occurrence network and predicted function analyses (FAPROTAX) were performed. Azospirillum was the most abundant genus occurring in the rhizosphere of inoculated plants. Regarding the alpha diversity, a significant reduction in the bacteria evenness was observed in the inoculated rhizosphere. The beta diversity analysis showed a differential structure of the communities of each treatment. According to the LEfSe index, the three most abundant genera associated with Az39 inoculation were Burkholderia, Massilia and Sphingobium. An increase in the relative abundance of some members of the Hyphomicrobiales (ex Rhizobiales) order was observed in inoculated plants. Co-occurrence networks showed a positive interaction between Azospirillum and Pseudomonas and a negative correlation with Hyphomicrobium. The FAPROTAX analysis associated Azospirillum inoculation with some functions related to chemoheterotrophy, phototrophy and the nitrogen cycle. Our results allowed us to conclude that Azospirillum is able to colonize the maize rhizosphere after inoculation and that this colonization process induces an increase in the relative abundance of beneficial bacterial genera, also commonly used as biofertilizers in agriculture.
Tipo de Recurso
artículo original
doi
10.1007/s42729-022-00909-6
Formato Recurso
PDF
Palabras Claves
Rhizosphere
Microbiome
Azospirillum
Metagenomics analysis
PGPR inoculation
BACTERIAL COMMUNITY
ROOT EXUDATION
GROWTH
IMPACT
SEED
PERFORMANCE
DIVERSITY
SEEDLINGS
GENOTYPES
DYNAMICS
Ubicación del archivo
http://dx.doi.org/10.1007/s42729-022-00909-6
Categoría OCDE
Ciencias Vegetales
Ciencias Ambientales
Ciencia del suelo
Materias
Rizosfera
Microbioma
Azospirillum
Análisis metagenómico
Inoculación PGPR
COMUNIDAD BACTERIANA
EXUDACIÓN DE RAÍCES
CRECIMIENTO
IMPACTO
SEMILLAS
RENDIMIENTO
DIVERSIDAD
PLÁNTULAS
GENOTIPOS
DINÁMICA
Disciplinas de la OCDE
Biotecnología agrícola
Microbiología
Agricultura
Título de la cita (Recomendado-único)
Modulation of Maize Rhizosphere Microbiota Composition by Inoculation with Azospirillum argentinense Az39 (Formerly A. brasilense Az39)
Página de inicio (Recomendado-único)
3553
Página final (Recomendado-único)
3567
Identificador del recurso (Mandatado-único)
artículo original
Versión del recurso (Recomendado-único)
version publicada
Condición de la licencia (Recomendado-repetible)
0
Derechos de acceso
restringido
Access Rights
restringido
Identificador relacionado
https://rdcu.be/dJFy1
Id de Web of Science
WOS:000817837400001
Colecciones
Colección Publicaciones Científicas
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