Coordinated bacterial and plant sulfur metabolism in
            <i>Enterobacter</i>
            sp. SA187–induced plant salt stress tolerance

Andrés‐Barrao, Cristina; Alzubaidy, Hanin S.; Jalal, Rewaa S.; Mariappan, Kadarkaraisamy; Zélicourt, Axel de; Bokhari, Ameerah; Artyukh, Olga; Alwutayd, Khairiah Mubarak; Rawat, Anamika; Shekhawat, Kirti; Almeida‐Trapp, Marilia; Saad, Maged M.; Hirt, Heribert

doi:10.1073/pnas.2107417118

Cited by 42 publications

(27 citation statements)

References 57 publications

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“…Another study showed the beneficial endophytic bacterium Enterobacter sp. SA187 (Proteobacteria) transcriptionally induces sulfur metabolic pathways in planta (Andrés‐Barrao et al , 2021). These results suggest that sulfate acquisition is important for the adaptation of commensal Proteobacteria to the plant environment.…”

Section: Resultsmentioning

confidence: 99%

Dissecting the cotranscriptome landscape of plants and their microbiota

et al. 2022

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Interactions between plants and neighboring microbial species are fundamental elements that collectively determine the structure and function of the plant microbiota. However, the molecular basis of such interactions is poorly characterized. Here, we colonize Arabidopsis leaves with nine plant-associated bacteria from all major phyla of the plant microbiota and profile cotranscriptomes of plants and bacteria six hours after inoculation. We detect both common and distinct cotranscriptome signatures among plantcommensal pairs. In planta responses of commensals are similar to those of a disarmed pathogen characterized by the suppression of genes involved in general metabolism in contrast to a virulent pathogen. We identify genes that are enriched in the genome of plant-associated bacteria and induced in planta, which may be instrumental for bacterial adaptation to the host environment and niche separation. This study provides insights into how plants discriminate among bacterial strains and lays the foundation for indepth mechanistic dissection of plant-microbiota interactions.

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Section: Resultsmentioning

confidence: 99%

Dissecting the cotranscriptome landscape of plants and their microbiota

et al. 2022

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“…Another study showed the beneficial endophytic bacterium Enterobacter sp. SA187 (Proteobacteria) transcriptionally induces sulfur metabolic pathways in planta ( 29 ). These results suggest that sulfate acquisition is important for the adaptation of commensal Proteobacteria to the plant environment.…”

Section: Resultsmentioning

confidence: 99%

Dissecting the co-transcriptome landscape of plants and microbiota members

Nobori

Cao

Entila

et al. 2021

Preprint

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Interactions between plants and each neighboring microbial species are fundamental building blocks that collectively determine the structure and function of the plant microbiota, but the molecular basis of such interactions is poorly characterized. Here, we monocolonized Arabidopsis leaves with nine plant-associated bacteria from all major phyla of the plant microbiota and profiled co-transcriptomes of plants and bacteria. These strains elicited quantitatively different plant transcriptional responses including typical pattern-triggered immunity responses. Genes of non-pathogenic bacteria involved in general metabolism and energy production were commonly suppressed in planta in contrast to a virulent pathogen. Various nutrient acquisition pathways that are frequently encoded in the genomes of plant-associated bacteria were induced in planta in a strain-specific manner, shedding light on bacterial adaptation to the plant environment and identifying a potential driving force of niche separation. Integrative analyses of plant and bacterial transcriptomes suggested that the transcriptional reprogramming of plants is largely uncoupled from that of bacteria at an early stage of interactions. This study provides insights into how plants discriminate among bacterial strains and sets the foundation for in-depth mechanistic dissection of plant-microbiota interactions.

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“…SA187 produces 2-keto-4-methylthiobutyric acid (KMBA), which can be converted to ethylene in planta. KMBA is a sulfur-containing compound, and plant ethylene signaling is linked to the sulfur metabolism via SAM (S-adenosyl methionine) as a precursor of ethylene [18,83]. This suggests that microbe-produced compounds trigger ethylene signaling in arabidopsis to regulate HS tolerance via increased ERF-mediated expression of HSFA2 and HSP genes.…”

Section: Bacillus Cereusmentioning

confidence: 99%