Abstract
BACKGROUND: Although it is well recognized that core root microorganisms contribute to plant health and productivity, little is known about their role to the accumulation of secondary metabolites. The roots of Anisodus tanguticus, a traditional herbal medication utilized by Tibetan medicine, are rich in tropane alkaloids. We collected wild A. tanguticus populations throughout a 1500 km transect on the Qinghai-Tibetan Plateau. RESULTS: Our results showed that despite sampling at a distance of 1500 km, the root of A. tanguticus selectively recruits core root bacteria. We obtained 102 root bacterial core OTUs, and although their number only accounted for 2.99% of the total, their relative abundance accounted for 73% of the total. Spearman correlation and random forest analyses revealed that the composition of core root microbiomes was related to anisodine contents, aboveground biomass and nitrogen contents of Anisodus tanguticus. Among them, the main role is played by Rhizobacter, Variovorax, Polaromonas, and Mycobacterium genus that are significantly enriched in roots. Functional prediction by FAPROTAX showed that nitrogen-cycling microorganisms and pathogenic bacteria are strongly associated with anisodine contents, aboveground biomass and nitrogen contents of Anisodus tanguticus. CONCLUSIONS: Our findings show that the root selectively recruits core root bacteria and revealed that the core microbiomes and microbial functions potentially contributed to the anisodine contents, aboveground biomass and nitrogen contents of the plant. This work may increase our understanding of the interactions between microorganisms and plants and improve our ability to manage root microbiota to promote sustainable production of herbal medicines.
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Claims 6
Claim · model-written summary
Anisodus tanguticus roots selectively recruit core root bacteria across a 1500 km sampling distance.
- Taxon
- Anisodus tanguticus
Anisodus tanguticust0 - Interactor
- core root bacteriae1symbiont
- Outcome
- selectively recruits core root bacteriae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Anisodus tanguticus”
e1“the root of A. tanguticus selectively recruits core root bacteria”
Claim · model-written summary
The 102 root bacterial core OTUs accounted for only 2.99% of the total OTUs.
- Taxon
- Anisodus tanguticusAnisodus tanguticust0
- Interactor
- root bacterial core OTUse1symbiont
- Outcome
- their numbere1
- Value
- 2.99%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Anisodus tanguticus”
e1“We obtained 102 root bacterial core OTUs, and although their number only accounted for 2.99% of the total, their relative abundance accounted for 73% of the total”
Claim · model-written summary
The same core root OTUs accounted for 73% of the total relative abundance.
- Taxon
- Anisodus tanguticusAnisodus tanguticust0
- Interactor
- root bacterial core OTUse1symbiont
- Outcome
- their relative abundancee1
- Value
- 73%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Anisodus tanguticus”
e1“We obtained 102 root bacterial core OTUs, and although their number only accounted for 2.99% of the total, their relative abundance accounted for 73% of the total”
Claim · model-written summary
The composition of core root microbiomes was related to anisodine contents, aboveground biomass and nitrogen contents of Anisodus tanguticus.
- Taxon
- Anisodus tanguticusAnisodus tanguticust0
- Interactor
- core root microbiomese2symbiont
- Outcome
- anisodine contents, aboveground biomass and nitrogen contentse2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Anisodus tanguticus”
e2“Spearman correlation and random forest analyses revealed that the composition of core root microbiomes was related to anisodine contents, aboveground biomass and nitrogen contents of Anisodus tanguticus”
Claim · model-written summary
Rhizobacter and Variovorax, with Polaromonas and Mycobacterium, are significantly enriched in roots of Anisodus tanguticus.
- Taxon
- Anisodus tanguticusAnisodus tanguticust0
- Interactor
- RhizobacterRhizobactere3symbiont
- Second interactor
- VariovoraxVariovoraxe3symbiont
- Outcome
- significantly enriched in rootse3
- Qualifier
- Polaromonas, and Mycobacterium genuse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Anisodus tanguticus”
e3“Among them, the main role is played by Rhizobacter, Variovorax, Polaromonas, and Mycobacterium genus that are significantly enriched in roots”
Claim · model-written summary
Nitrogen-cycling microorganisms and pathogenic bacteria are strongly associated with anisodine contents, aboveground biomass and nitrogen contents of Anisodus tanguticus.
- Taxon
- Anisodus tanguticusAnisodus tanguticust0
- Interactor
- nitrogen-cycling microorganismse4other
- Second interactor
- pathogenic bacteriae4pathogen
- Outcome
- anisodine contents, aboveground biomass and nitrogen contentse4
- Qualifier
- Functional prediction by FAPROTAXe4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Anisodus tanguticus”
e4“Functional prediction by FAPROTAX showed that nitrogen-cycling microorganisms and pathogenic bacteria are strongly associated with anisodine contents, aboveground biomass and nitrogen contents of Anisodus tanguticus”