Barro M., Wonni I., Simonin Marie, Kassankogno A. I., Klonowska Agnieszka, Moulin Lionel, Béna Gilles, Somda I., Brunel Caroline, Tollenaere Charlotte. (2022). The impact of the rice production system (irrigated vs lowland) on root-associated microbiome from farmer's fields in western Burkina Faso. FEMS Microbiology Ecology, 98 (9), fiac085 [17 p.]. ISSN 0168-6496.
Titre du document
The impact of the rice production system (irrigated vs lowland) on root-associated microbiome from farmer's fields in western Burkina Faso
Année de publication
2022
Auteurs
Barro M., Wonni I., Simonin Marie, Kassankogno A. I., Klonowska Agnieszka, Moulin Lionel, Béna Gilles, Somda I., Brunel Caroline, Tollenaere Charlotte
Source
FEMS Microbiology Ecology, 2022,
98 (9), fiac085 [17 p.] ISSN 0168-6496
Due to their potential applications for food safety, there is a growing interest in rice root-associated microbial communities, but some systems remain understudied. Here, we compare the assemblage of root-associated microbiota in rice sampled in 19 small farmer's fields from irrigated and rainfed lowlands in Burkina Faso, using an amplicon metabarcoding approach of the 16S rRNA gene (prokaryotes, three plant samples per field) and ITS (fungi, one sample per field). In addition to the expected structure by root compartments (root vs rhizosphere) and geographical zones, we showed that the rice production system is a major driver of microbiome structure. In irrigated systems, we found a higher diversity of prokaryotic communities from the rhizosphere and more complex co-occurrence networks, compared to rainfed lowlands, while fungal communities exhibited an opposite pattern (higher richness in rainfed lowlands). Core taxa were different between the two systems, and indicator species were identified: mostly within Bacillaceae in rainfed lowlands, and within Burkholderiaceae and Moraxellaceae in irrigated areas. Finally, a higher abundance in rainfed lowlands was found for mycorrhizal fungi (both compartments) and rhizobia (rhizosphere only). Our results highlight deep microbiome differences induced by contrasted rice production systems that should consequently be considered for microbial engineering applications. Irrigated rice and rainfed lowlands harbor contrasted root-associated microbiomes in small farmer's fields from Burkina Faso, with contrasted richness, and peculiar indicator taxa in each system.
Plan de classement
Sciences du monde végétal [076]
;
Biotechnologies [084]
;
Economie et sociologie rurale [098]
Description Géographique
AFRIQUE DE L'OUEST ; BURKINA FASO
Localisation
Fonds IRD [F B010086001]
Identifiant IRD
fdi:010086001
