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Rootstocks and drought stress impact the composition and functionality of grapevine rhizosphere bacterial microbiota.

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Title: Rootstocks and drought stress impact the composition and functionality of grapevine rhizosphere bacterial microbiota.
Authors: Labarga, David1 (AUTHOR), Mairata, Andreu1 (AUTHOR), Puelles, Miguel1 (AUTHOR), Wallner, Adrian1,2 (AUTHOR), Aziz, Aziz2 (AUTHOR), Alícia, Pou1 (AUTHOR) alicia.pou@icvv.es
Source: Microbiological Research. Apr2025, Vol. 293, pN.PAG-N.PAG. 1p.
Subjects: Bacterial genetic engineering, Amino acid transport, Water management, Rootstocks, Bacterial communities
Abstract: The microbiota, a component of the plant holobiont, plays an active role in the response to biotic and abiotic stresses. Nowadays, with recurrent drought and global warming, a growing challenge in viticulture is being addressed by different practices, including the use of adapted rootstocks. However, the relationships between these practices, abiotic stress and the composition and functions of the rhizosphere microbiota remain to be deciphered. This study aimed to unravel the impact of five rootstocks, water management and the combination of both on the rhizosphere bacterial microbiota in grapevines using shotgun metagenomics approach. The results showed that drought impacted the diversity, composition and functionality of the rhizosphere bacterial community. The genera Mycolicibacterium , Mycobacterium and Rhodococcus , and the bacterial functions, including DNA damage repair, fatty acid synthesis, sugar and amino acid transport, oxidative stress reduction, toxin synthesis and detoxification of exogenous compounds were significantly enriched under drought conditions. Rootstocks also significantly affected the rhizosphere bacterial richness but its influence on diversity and functionality compared to water management was weaker. Some taxa and function could be linked to water managements applied. The interaction between rootstocks and water management further influenced the rhizosphere composition, especially under drought conditions, where distinct clustering was observed for specific rootstocks. The results highlight the importance of conducting multifactorial studies to better understand their impact on shaping functional rhizosphere bacterial communities. This study paves the way for future research on beneficial bacterial inoculation and genetic engineering of rootstock to cope with drought stress. [Display omitted] • Drought impacts diversity, composition, and function of rhizosphere microbiota. • Rootstocks affect microbiota, but impact is weaker than water management effects. • Key gram- bacteria were enriched under drought conditions. • Specific taxa and functions enriched in drought suggest potential future treatments. [ABSTRACT FROM AUTHOR]
Copyright of Microbiological Research is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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  Data: Rootstocks and drought stress impact the composition and functionality of grapevine rhizosphere bacterial microbiota.
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  Data: <searchLink fieldCode="AR" term="%22Labarga%2C+David%22">Labarga, David</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mairata%2C+Andreu%22">Mairata, Andreu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Puelles%2C+Miguel%22">Puelles, Miguel</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wallner%2C+Adrian%22">Wallner, Adrian</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aziz%2C+Aziz%22">Aziz, Aziz</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alícia%2C+Pou%22">Alícia, Pou</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> alicia.pou@icvv.es</i>
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  Data: <searchLink fieldCode="JN" term="%22Microbiological+Research%22">Microbiological Research</searchLink>. Apr2025, Vol. 293, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Bacterial+genetic+engineering%22">Bacterial genetic engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Amino+acid+transport%22">Amino acid transport</searchLink><br /><searchLink fieldCode="DE" term="%22Water+management%22">Water management</searchLink><br /><searchLink fieldCode="DE" term="%22Rootstocks%22">Rootstocks</searchLink><br /><searchLink fieldCode="DE" term="%22Bacterial+communities%22">Bacterial communities</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The microbiota, a component of the plant holobiont, plays an active role in the response to biotic and abiotic stresses. Nowadays, with recurrent drought and global warming, a growing challenge in viticulture is being addressed by different practices, including the use of adapted rootstocks. However, the relationships between these practices, abiotic stress and the composition and functions of the rhizosphere microbiota remain to be deciphered. This study aimed to unravel the impact of five rootstocks, water management and the combination of both on the rhizosphere bacterial microbiota in grapevines using shotgun metagenomics approach. The results showed that drought impacted the diversity, composition and functionality of the rhizosphere bacterial community. The genera Mycolicibacterium , Mycobacterium and Rhodococcus , and the bacterial functions, including DNA damage repair, fatty acid synthesis, sugar and amino acid transport, oxidative stress reduction, toxin synthesis and detoxification of exogenous compounds were significantly enriched under drought conditions. Rootstocks also significantly affected the rhizosphere bacterial richness but its influence on diversity and functionality compared to water management was weaker. Some taxa and function could be linked to water managements applied. The interaction between rootstocks and water management further influenced the rhizosphere composition, especially under drought conditions, where distinct clustering was observed for specific rootstocks. The results highlight the importance of conducting multifactorial studies to better understand their impact on shaping functional rhizosphere bacterial communities. This study paves the way for future research on beneficial bacterial inoculation and genetic engineering of rootstock to cope with drought stress. [Display omitted] • Drought impacts diversity, composition, and function of rhizosphere microbiota. • Rootstocks affect microbiota, but impact is weaker than water management effects. • Key gram- bacteria were enriched under drought conditions. • Specific taxa and functions enriched in drought suggest potential future treatments. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Microbiological Research is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.micres.2025.128073
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Bacterial genetic engineering
        Type: general
      – SubjectFull: Amino acid transport
        Type: general
      – SubjectFull: Water management
        Type: general
      – SubjectFull: Rootstocks
        Type: general
      – SubjectFull: Bacterial communities
        Type: general
    Titles:
      – TitleFull: Rootstocks and drought stress impact the composition and functionality of grapevine rhizosphere bacterial microbiota.
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            NameFull: Labarga, David
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            NameFull: Mairata, Andreu
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            NameFull: Puelles, Miguel
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            – D: 01
              M: 04
              Text: Apr2025
              Type: published
              Y: 2025
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              Value: 293
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