Abstract
Plant-soil-microbe interactions can affect plant growth, development, and health. Plants can secrete bioactive molecules into the rhizosphere to alter the soil microbiota, further influencing plant growth. In this paper, the effects of flavonols secreted by tea roots on the remodeling of rhizosphere bacteria and on growth of tea plants were explored. Aluminum treatment significantly promoted the growth of tea plants, the accumulation of flavonols glycosides in the roots and the secretion of flavonols glycosides from roots. 16S rRNA analysis indicated that after aluminum treatment, the rhizosphere bacteria Burkholderia of the Proteobacteria phylum were significantly enriched. Compared to 'Longjin43' (LJ43), in roots of 'Huangjinye' (HJY), more flavonols were accumulated, so did in the root exudates. Moreover, Burkholderia in the rhizosphere of 'HJY' was significantly enriched. The results of correlation analysis indicated that the abundance of Burkholderia was significantly positively correlated with the secretion of flavonols under aluminum treatment or in different tea cultivar. Then 0.05 mM kaempferol were exogenous application to confirm the growth-promoting effect of flavonols on tea plants and the recruitment of Burkholderia in rhizosphere of tea roots. In conclusion, tea roots secrete flavonol glycosides into the rhizosphere soil, which can recruit Burkholderia and further promote the growth of tea plants. This study laid foundation for the subsequent development of bacterial fertilizers to promote the growth of tea plants. • Aluminum treatment enhances tea growth and root flavonoid glycosides secretion. • 'HJY' root secreted higher flavonols and enriched more rhizosphere Burkholderia than 'LJ43'. • Exogenous kaempferol promoted tea root growth and enriched rhizosphere Burkholderia . • Root-secreted flavonol glycosides recruit Burkholderia , further boosting growth.
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Claims 10
Claim · model-written summary
Aluminum treatment significantly promoted the growth of tea plants.
Not reportedComparator
Verbatim
t0“fuel tea plant growth”
e1“Aluminum treatment significantly promoted the growth of tea plants, the accumulation of flavonols glycosides in the roots and the secretion of flavonols glycosides from roots”
Claim · model-written summary
Aluminum treatment significantly promoted flavonol glycoside accumulation in tea roots.
- Taxon
- tea plantt0
- Treatment
- Aluminum treatmente1
- Outcome
- accumulation of flavonols glycosides in the rootse1
- Direction
- promotede1
Not reportedComparator
Verbatim
t0“fuel tea plant growth”
e1“Aluminum treatment significantly promoted the growth of tea plants, the accumulation of flavonols glycosides in the roots and the secretion of flavonols glycosides from roots”
Claim · model-written summary
Aluminum treatment significantly promoted flavonol glycoside secretion from tea roots.
- Taxon
- tea plantt0
- Treatment
- Aluminum treatmente1
- Outcome
- secretion of flavonols glycosides from rootse1
- Direction
- promotede1
Not reportedComparator
Verbatim
t0“fuel tea plant growth”
e1“Aluminum treatment significantly promoted the growth of tea plants, the accumulation of flavonols glycosides in the roots and the secretion of flavonols glycosides from roots”
Claim · model-written summary
After aluminum treatment, rhizosphere Burkholderia was significantly enriched in tea plants.
- Taxon
- tea plantt0
- Treatment
- aluminum treatmente2
- Interactor
- Burkholderia
Burkholderiae2symbiont - Outcome
- rhizosphere bacteria Burkholderiae2
- Direction
- significantly enrichede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“fuel tea plant growth”
e2“after aluminum treatment, the rhizosphere bacteria Burkholderia of the Proteobacteria phylum were significantly enriched”
Claim · model-written summary
Tea cultivar Huangjinye accumulated more flavonols in its roots than Longjin43.
Verbatim
t0“fuel tea plant growth”
e3“Compared to 'Longjin43' (LJ43), in roots of 'Huangjinye' (HJY), more flavonols were accumulated”
Claim · model-written summary
Rhizosphere Burkholderia was significantly enriched under the Huangjinye cultivar.
- Taxon
- tea plantt0
- Material
- HJYe4
- Interactor
- BurkholderiaBurkholderiae4symbiont
- Outcome
- Burkholderia in the rhizospheree4
- Direction
- was significantly enrichede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“fuel tea plant growth”
e4“Moreover, Burkholderia in the rhizosphere of 'HJY' was significantly enriched”
Claim · model-written summary
Abundance of Burkholderia was significantly positively correlated with flavonol secretion under aluminum treatment or across tea cultivars.
- Taxon
- tea plantt0
- Treatment
- aluminum treatmente5
- Interactor
- BurkholderiaBurkholderiae5symbiont
- Outcome
- abundance of Burkholderiae5
- Direction
- significantly positively correlatede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“fuel tea plant growth”
e5“the abundance of Burkholderia was significantly positively correlated with the secretion of flavonols under aluminum treatment or in different tea cultivar”
Claim · model-written summary
Exogenous 0.05 mM kaempferol promoted tea root growth.
Not reportedComparator
Verbatim
t0“fuel tea plant growth”
e1“Exogenous kaempferol promoted tea root growth and enriched rhizosphere Burkholderia”
e2“0.05 mM kaempferol were exogenous application”
Claim · model-written summary
Exogenous kaempferol enriched rhizosphere Burkholderia in tea.
- Taxon
- tea plantt0
- Treatment
- 0.05 mM kaempferole2
- Interactor
- BurkholderiaBurkholderiae1symbiont
- Outcome
- rhizosphere Burkholderiae1
- Direction
- enrichede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“fuel tea plant growth”
e1“Exogenous kaempferol promoted tea root growth and enriched rhizosphere Burkholderia”
e2“0.05 mM kaempferol were exogenous application”
Claim · model-written summary
Root-secreted flavonol glycosides recruit Burkholderia, which is proposed to promote tea plant growth.
- Taxon
- tea plantt0
- Interactor
- BurkholderiaBurkholderiae3symbiont
- Outcome
- growth of tea plantse3
- Qualifier
- recruit Burkholderiae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“fuel tea plant growth”
e3“tea roots secrete flavonol glycosides into the rhizosphere soil, which can recruit Burkholderia and further promote the growth of tea plants”
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