Abstract
Fig. 1 Regulatory schematic diagram of soybean genotypically conserved core microbiota-rhizosphere nutrient turnover. The study established a model linking soybean genotypes, genotypically conserved core microbiota, and rhizosphere nutrient turnover. The model’s pathways involve three key components: 1. Soybean genotype differences determine root − associated microbial community composition, accounting for 2.07 % of total variation; 2. SnyCom (SRNT) constructed from genotypically conserved core microbes enhance yield by boosting rhizosphere nutrient activation and host nutrient uptake; 3. Host genotype differences can directly regulate rhizosphere nutrient availability in soybeans, with different groupings explaining 11.75 % of total variation. • Soybean host genotype dictates nutrient dynamics in the rhizosphere. • Tripartite interactions among host genotype, conserved core microbiota, and rhizosphere nutrient turnover in soybean. • Phylogenetically conserved core microbiota members orchestrate rhizosphere nutrient turnover. • Phylogenetically conserved core microbiota members promote host soybean growth through modulating nutrient turnover. • Integration of core microbiota into soybean molecular breeding to enhance soil fertility. Microbiota-mediated nutrient turnover in the rhizosphere determines nutrient bioavailability, thereby enhancing nutrient uptake, utilization, and ultimately crop productivity. Consequently, elucidating the functional core microbiota in rhizosphere nutrient turnover is of critical importance. In this study, we leveraged soybean germplasm core collections to investigate the tripartite relationship among host genotype, core microbiota and nutrient availability, with a focus on delineating the pivotal role of core microbiota in nutrient turnover. Our results suggest that phylogenetic variation significantly shape root-associated microbial communities and rhizosphere nutrient availability, explaining 11.75 % and 2.07 % of total variances, respectively. Core microbiota analysis identified 29 phylogenetic conserved core amplicon sequence variants (ASVs), the majority of which exhibited significant correlated with nutrient availability. Notably, three key core ASVs—ASV13, ASV14 and ASV12, positively correlated with alkali-hydrolyzed nitrogen, available phosphorus, and soil organic matter, respectively. These taxa were subsequently incorporated into a Bradyrhizobium -based synthetic bacterial community (SynCom) to validate their functional roles. Further experiments confirmed that core microbiota-driven nutrient turnover directly facilitates host plant, as evidenced by SynCom inoculation assays. Collectively, this study establishes that phylogenetically conserved core microbiota critically regulate nutrient turnover and acquisition efficiency in the rhizosphere. These insights advance our understanding the ecological function of core microbiota in the rhizosphere and provide a framework for harnessing the beneficial traits in sustainable agriculture.
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Claims 9
Claim · model-written summary
Soybean genotypic variation shaped root-associated microbial communities, explaining 11.75 percent of variance.
- Taxon
- soybean
Glycine maxt0 - Material
- phylogenetic variatione0
- Outcome
- root-associated microbial communitiese0
- Value
- 11.75 %e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phylogenetic variation significantly shape root-associated microbial communities and rhizosphere nutrient availability, explaining 11.75 % and 2.07 % of total variances, respectively”
t0“soybean”
Claim · model-written summary
Soybean genotypic variation shaped rhizosphere nutrient availability, explaining 2.07 percent of variance.
- Taxon
- soybeanGlycine maxt0
- Material
- phylogenetic variatione0
- Outcome
- rhizosphere nutrient availabilitye0
- Value
- 2.07 %e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“phylogenetic variation significantly shape root-associated microbial communities and rhizosphere nutrient availability, explaining 11.75 % and 2.07 % of total variances, respectively”
t0“soybean”
Claim · model-written summary
Core microbiota analysis identified 29 conserved core ASVs.
- Taxon
- soybeanGlycine maxt0
- Outcome
- phylogenetic conserved core amplicon sequence variants (ASVs)e0
- Value
- 29e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Core microbiota analysis identified 29 phylogenetic conserved core amplicon sequence variants (ASVs)”
t0“soybean”
Claim · model-written summary
Most conserved ASVs were significantly correlated with nutrient availability.
- Taxon
- soybeanGlycine maxt0
- Outcome
- nutrient availabilitye0
Not reportedOrgan / stageDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the majority of which exhibited significant correlated with nutrient availability”
t0“soybean”
Claim · model-written summary
ASV13 positively correlated with alkali-hydrolyzed nitrogen.
- Taxon
- soybeanGlycine maxt0
- Interactor
- ASV13e0symbiont
- Outcome
- alkali-hydrolyzed nitrogene0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASV13, ASV14 and ASV12, positively correlated with alkali-hydrolyzed nitrogen, available phosphorus, and soil organic matter, respectively”
t0“soybean”
Claim · model-written summary
ASV14 positively correlated with available phosphorus.
- Taxon
- soybeanGlycine maxt0
- Interactor
- ASV14e0symbiont
- Outcome
- available phosphoruse0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASV13, ASV14 and ASV12, positively correlated with alkali-hydrolyzed nitrogen, available phosphorus, and soil organic matter, respectively”
t0“soybean”
Claim · model-written summary
ASV12 positively correlated with soil organic matter.
- Taxon
- soybeanGlycine maxt0
- Interactor
- ASV12e0symbiont
- Outcome
- soil organic mattere0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ASV13, ASV14 and ASV12, positively correlated with alkali-hydrolyzed nitrogen, available phosphorus, and soil organic matter, respectively”
t0“soybean”
Claim · model-written summary
SynCom inoculation facilitated soybean growth through nutrient turnover.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SynCom inoculatione0
- Interactor
- SynCome0symbiont
- Outcome
- host plante0
- Direction
- facilitatese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“core microbiota-driven nutrient turnover directly facilitates host plant, as evidenced by SynCom inoculation assays”
t0“soybean”
Claim · model-written summary
The synthetic community enhanced soybean yield through nutrient activation and uptake.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SnyCom (SRNT)e0
- Interactor
- SnyCom (SRNT)e0symbiont
- Outcome
- yielde0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SnyCom (SRNT) constructed from genotypically conserved core microbes enhance yield by boosting rhizosphere nutrient activation and host nutrient uptake”
t0“soybean”