Rhizosphere-xylem sap connections in the olive tree microbiome: implications for biostimulation approaches.
J Appl Microbiol
; 135(7)2024 Jul 02.
Article
en En
| MEDLINE
| ID: mdl-38906841
ABSTRACT
AIMS:
Climate change is endangering olive groves. Farmers are adapting by exploring new varieties of olive trees and examining the role of microbiomes in plant health.The main objectives of this work were to determine the primary factors that influence the microbiome of olive trees and to analyze the connection between the rhizosphere and endosphere compartments. METHODS ANDRESULTS:
The rhizosphere and xylem sap microbiomes of two olive tree varieties were characterized by next-generation 16S rRNA amplicon sequencing, and soil descriptors were analyzed. Bacterial communities in the rhizosphere of olive trees were more diverse than those found in the xylem sap. Pseudomonadota, Actinobacteriota, Acidobacteriota, and Bacillota were the dominant phyla in both compartments. At the genus level, only very few taxa were shared between soil and sap bacterial communities.CONCLUSIONS:
The composition of the bacteriome was more affected by the plant compartment than by the olive cultivar or soil properties, and a direct route from the rhizosphere to the endosphere could not be confirmed. The large number of plant growth-promoting bacteria found in both compartments provides promising prospects for improving agricultural outcomes through microbiome engineering.Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Microbiología del Suelo
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Bacterias
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ARN Ribosómico 16S
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Olea
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Xilema
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Rizosfera
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Microbiota
Idioma:
En
Revista:
J Appl Microbiol
Asunto de la revista:
MICROBIOLOGIA
Año:
2024
Tipo del documento:
Article
País de afiliación:
Portugal