Water Deficit History Selects Plant Beneficial Soil Bacteria Differently Under Conventional and Organic Farming.
ACC deaminase
PGPR
acdS gene
amplicon sequencing
barley
drought legacy
organic and conventional farming
wheat
Journal
Frontiers in microbiology
ISSN: 1664-302X
Titre abrégé: Front Microbiol
Pays: Switzerland
ID NLM: 101548977
Informations de publication
Date de publication:
2022
2022
Historique:
received:
29
11
2021
accepted:
29
04
2022
entrez:
30
6
2022
pubmed:
1
7
2022
medline:
1
7
2022
Statut:
epublish
Résumé
Water deficit tolerance is critical for plant fitness and survival, especially when successive drought events happen. Specific soil microorganisms are however able to improve plant tolerance to stresses, such as those displaying a 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity. Microorganisms adapted to dry conditions can be selected by plants over time because of properties such as sporulation, substrate preference, or cell-wall thickness. However, the complexity and interconnection between abiotic factors, like drought or soil management, and biotic factors, like plant species identity, make it difficult to elucidate the general selection processes of such microorganisms. Using a pot experiment in which wheat and barley were grown on conventional and organic farming soils, we determined the effect of water deficit history on soil microorganisms by comparing single and successive events of water limitation. The analysis showed that water deficit strongly impacts the composition of both the total microbial community (16S rRNA genes) and one of ACC deaminase-positive (
Identifiants
pubmed: 35770171
doi: 10.3389/fmicb.2022.824437
pmc: PMC9234553
doi:
Types de publication
Journal Article
Langues
eng
Pagination
824437Informations de copyright
Copyright © 2022 Gebauer, Breitkreuz, Heintz-Buschart, Reitz, Buscot, Tarkka and Bouffaud.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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