Abstract
Effective land use in cadmium (Cd)-contaminated agricultural soils requires integrated strategies that not only promote phytoremediation but also enhance productivity and sustainability. However, whether these multifunctional goals can be simultaneously achieved through a rationally designed synthetic microbial community (SynCom) remains unclear. Here, this study developed a simplified plant–microbiome strategy that combines the perennial medicinal plant Artemisia argyi with a native rhizosphere SynCom to improve soil health, crop performance, and carbon sequestration. Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter. The custom high-throughput culturomics pipeline that enabled the identification and isolation efficiency of functional rhizobacteria from complex native communities (purity > 70 %). A top-down design strategy guided the assembly of a simplified, yet functionally complementary SynCom with minimal antagonism. The selected Pseudomonas–Rahnella pair exhibited strong Cd tolerance (∼ 2 mM), Plant growth promotion (PGP) traits, and carbon fixation capacity. SynCom inoculation under Cd stress confirmed stable endophytic colonization (10–15 %) rather than colonization of the rhizoplane, and significantly improved root biomass (+43 %), Cd uptake (+110 %), soil organic carbon accumulation (+50 %), and essential oil precursors. Rhizosphere and leaf metabolomics further indicated SynCom inoculation reallocated secondary metabolism supporting both plant’s resilience and oil biosynthesis. Our findings support a mechanistic model in which a simplified A. argyi + SynCom partnership enhances phytoremediation and productivity by coupling endophytic colonization, plant secondary metabolism, and microbial carbon turnover, thereby providing generalizable insights into how native SynCom can be rationally designed for multifunctional outcomes in contaminated soils. The simplified A. argyi + SynCom system reveals the intrinsic resilience of A. argyi and the functional complementary of a native two-member SynCom to simultaneously stabilize heavy metals, promote soil health, enrich beneficial metabolites, and increase economic returns. • Root-native bacteria of A. argyi yielded a simple, robust SynCom. • SynCom boosted A. argyi growth, Cd uptake, and oil precursors synthesis. • Nutrient-mobilizing and C-fixing strains drove stable endophilic colonization. • A top-down design revealed a general principle for native SynCom engineering. • argyi + SynCom offers a scalable method for remediation and land productivity.
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Claims 12
Claim · model-written summary
Artemisia argyi cultivation enhanced soil Cd uptake by up to twofold.
- Taxon
- A. argyi
Artemisia argyie0 - Treatment
- A. argyi cultivatione0
- Outcome
- soil Cd uptakee1
- Direction
- enhancede1
- Value
- up to twofolde1
- Setting
- Field investigationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“enhanced soil Cd uptake by up to twofold”
Claim · model-written summary
Artemisia argyi cultivation increased soil organic matter accumulation threefold.
- Taxon
- A. argyiArtemisia argyie0
- Treatment
- A. argyi cultivatione0
- Outcome
- accumulation in soil organic mattere1
- Direction
- increaseinferrede1
- Value
- threefolde1
- Setting
- Field investigationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“a threefold accumulation in soil organic matter”
Claim · model-written summary
The culturomics pipeline isolated functional rhizobacteria with purity above 70 %.
- Taxon
- A. argyiArtemisia argyie0
- Outcome
- puritye1
- Value
- > 70 %e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“The custom high-throughput culturomics pipeline that enabled the identification and isolation efficiency of functional rhizobacteria from complex native communities (purity > 70 %)”
Claim · model-written summary
The selected Pseudomonas–Rahnella pair showed strong Cd tolerance of about 2 mM.
- Taxon
- A. argyiArtemisia argyie0
- Interactor
- Pseudomonas–Rahnella
Pseudomonas
Rahnellae1symbiont - Outcome
- Cd tolerancee1
- Value
- ∼ 2 mMe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“The selected Pseudomonas–Rahnella pair exhibited strong Cd tolerance (∼ 2 mM), Plant growth promotion (PGP) traits, and carbon fixation capacity”
Claim · model-written summary
The selected Pseudomonas–Rahnella pair showed plant growth promotion traits and carbon fixation capacity.
- Taxon
- A. argyiArtemisia argyie0
- Interactor
- Pseudomonas–RahnellaPseudomonasRahnellae1symbiont
- Outcome
- Plant growth promotion (PGP) traits, and carbon fixation capacitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“The selected Pseudomonas–Rahnella pair exhibited strong Cd tolerance (∼ 2 mM), Plant growth promotion (PGP) traits, and carbon fixation capacity”
Claim · model-written summary
SynCom inoculation under Cd stress gave stable endophytic colonization at 10–15 %, higher than rhizoplane colonization.
- Taxon
- A. argyiArtemisia argyie0
- Treatment
- SynCom inoculation under Cd stresse1
- Interactor
- SynCome1symbiont
- Outcome
- endophytic colonizatione1
- Direction
- higherinferrede1
- Value
- 10–15 %e1
- Comparator
- colonization of the rhizoplanee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“SynCom inoculation under Cd stress confirmed stable endophytic colonization (10–15 %) rather than colonization of the rhizoplane”
Claim · model-written summary
SynCom inoculation under Cd stress significantly improved root biomass by 43 %.
- Taxon
- A. argyiArtemisia argyie0
- Treatment
- SynCom inoculation under Cd stresse1
- Interactor
- SynCome1symbiont
- Outcome
- root biomasse2
- Direction
- significantly improvede2
- Value
- +43 %e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“SynCom inoculation under Cd stress confirmed stable endophytic colonization (10–15 %) rather than colonization of the rhizoplane”
e2“significantly improved root biomass (+43 %), Cd uptake (+110 %), soil organic carbon accumulation (+50 %), and essential oil precursors”
Claim · model-written summary
SynCom inoculation under Cd stress improved Cd uptake by 110 % in Artemisia argyi.
- Taxon
- A. argyiArtemisia argyie0
- Treatment
- SynCom inoculation under Cd stresse1
- Interactor
- SynCome1symbiont
- Outcome
- Cd uptakee2
- Direction
- significantly improvede2
- Value
- +110 %e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“SynCom inoculation under Cd stress confirmed stable endophytic colonization (10–15 %) rather than colonization of the rhizoplane”
e2“significantly improved root biomass (+43 %), Cd uptake (+110 %), soil organic carbon accumulation (+50 %), and essential oil precursors”
Claim · model-written summary
SynCom inoculation under Cd stress improved soil organic carbon accumulation by 50 %.
- Taxon
- A. argyiArtemisia argyie0
- Treatment
- SynCom inoculation under Cd stresse1
- Interactor
- SynCome1symbiont
- Outcome
- soil organic carbon accumulatione2
- Direction
- significantly improvede2
- Value
- +50 %e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“SynCom inoculation under Cd stress confirmed stable endophytic colonization (10–15 %) rather than colonization of the rhizoplane”
e2“significantly improved root biomass (+43 %), Cd uptake (+110 %), soil organic carbon accumulation (+50 %), and essential oil precursors”
Claim · model-written summary
SynCom inoculation under Cd stress improved essential oil precursors in Artemisia argyi.
- Taxon
- A. argyiArtemisia argyie0
- Treatment
- SynCom inoculation under Cd stresse1
- Interactor
- SynCome1symbiont
- Outcome
- essential oil precursorse2
- Direction
- significantly improvede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“SynCom inoculation under Cd stress confirmed stable endophytic colonization (10–15 %) rather than colonization of the rhizoplane”
e2“significantly improved root biomass (+43 %), Cd uptake (+110 %), soil organic carbon accumulation (+50 %), and essential oil precursors”
Claim · model-written summary
SynCom inoculation reallocated secondary metabolism in Artemisia argyi.
- Taxon
- A. argyiArtemisia argyie0
- Treatment
- SynCom inoculatione1
- Outcome
- secondary metabolisme1
- Direction
- reallocatede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“SynCom inoculation reallocated secondary metabolism”
Claim · model-written summary
A simplified Artemisia argyi plus SynCom partnership is proposed to enhance phytoremediation and productivity through endophytic colonization, secondary metabolism and microbial carbon turnover.
- Taxon
- A. argyiArtemisia argyie0
- Outcome
- phytoremediation and productivitye1
- Qualifier
- coupling endophytic colonization, plant secondary metabolism, and microbial carbon turnovere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Field investigations initially showed that A. argyi cultivation enhanced soil Cd uptake by up to twofold and a threefold accumulation in soil organic matter”
e1“Our findings support a mechanistic model in which a simplified A. argyi + SynCom partnership enhances phytoremediation and productivity by coupling endophytic colonization, plant secondary metabolism, and microbial carbon turnover”
The same questions in other papers
cadmium atom · growth · Artemisia argyiResults agree
1 paper in the same direction as this paper
- positive
heavy metal · growth · Artemisia argyiResults agree
1 paper in the same direction as this paper
- positive
inoculation · growth · Artemisia argyiResults agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.