Paper · 2025 · Industrial Crops and Products

Aluminum induced flavonols in root exudates: Orchestrating rhizosphere bacteria to fuel tea plant growth

Tianlin Shen; Jilai Cui; Shuo Yang; et al.

10
claims
22
verbatim quotes
1
citations
3
research areas
✓
Open access · cc-by-nc

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

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Aluminum treatment significantly promoted the growth of tea plants.

Taxon
tea plantt0
Treatment
Aluminum treatmente1
Outcome
growth of tea plantse1
Direction
promotede1

Not reportedComparator

Verbatim

t0

“fuel tea plant growth”

✓ located verbatim in the source · title, characters 83–104 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 353–527 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

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”

✓ located verbatim in the source · title, characters 83–104 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 353–527 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

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”

✓ located verbatim in the source · title, characters 83–104 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 353–527 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

After aluminum treatment, rhizosphere Burkholderia was significantly enriched in tea plants.

Taxon
tea plantt0
Treatment
aluminum treatmente2
Interactor
BurkholderiaBurkholderiae2symbiont
Outcome
rhizosphere bacteria Burkholderiae2
Direction
significantly enrichede2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Burkholderia
Burkholderia · Interactor · picture from its Wikimedia Commons categoryMelww at English Wikipedia · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

t0

“fuel tea plant growth”

✓ located verbatim in the source · title, characters 83–104 · show in text ↑
e2

“after aluminum treatment, the rhizosphere bacteria Burkholderia of the Proteobacteria phylum were significantly enriched”

✓ located verbatim in the source · abstract, characters 562–682 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Tea cultivar Huangjinye accumulated more flavonols in its roots than Longjin43.

Taxon
tea plantt0
Material
Huangjinyee3
Outcome
flavonolse3
Direction
moree3
Comparator
Longjin43e3

Verbatim

t0

“fuel tea plant growth”

✓ located verbatim in the source · title, characters 83–104 · show in text ↑
e3

“Compared to 'Longjin43' (LJ43), in roots of 'Huangjinye' (HJY), more flavonols were accumulated”

✓ located verbatim in the source · abstract, characters 684–779 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

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.

Burkholderia
Burkholderia · Interactor · picture from its Wikimedia Commons categoryMelww at English Wikipedia · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

t0

“fuel tea plant growth”

✓ located verbatim in the source · title, characters 83–104 · show in text ↑
e4

“Moreover, Burkholderia in the rhizosphere of 'HJY' was significantly enriched”

✓ located verbatim in the source · abstract, characters 810–887 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

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.

Burkholderia
Burkholderia · Interactor · picture from its Wikimedia Commons categoryMelww at English Wikipedia · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

t0

“fuel tea plant growth”

✓ located verbatim in the source · title, characters 83–104 · show in text ↑
e5

“the abundance of Burkholderia was significantly positively correlated with the secretion of flavonols under aluminum treatment or in different tea cultivar”

✓ located verbatim in the source · abstract, characters 940–1095 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Exogenous 0.05 mM kaempferol promoted tea root growth.

Taxon
tea plantt0
Treatment
0.05 mM kaempferole2
Outcome
tea root growthe1
Direction
promotede1

Not reportedComparator

Verbatim

t0

“fuel tea plant growth”

✓ located verbatim in the source · title, characters 83–104 · show in text ↑
e1

“Exogenous kaempferol promoted tea root growth and enriched rhizosphere Burkholderia”

✓ located verbatim in the source · abstract, characters 1735–1818 · show in text ↑
e2

“0.05 mM kaempferol were exogenous application”

✓ located verbatim in the source · abstract, characters 1102–1147 · show in text ↑
Intervention effectobservedoriginal resultmeasured

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.

Burkholderia
Burkholderia · Interactor · picture from its Wikimedia Commons categoryMelww at English Wikipedia · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

t0

“fuel tea plant growth”

✓ located verbatim in the source · title, characters 83–104 · show in text ↑
e1

“Exogenous kaempferol promoted tea root growth and enriched rhizosphere Burkholderia”

✓ located verbatim in the source · abstract, characters 1735–1818 · show in text ↑
e2

“0.05 mM kaempferol were exogenous application”

✓ located verbatim in the source · abstract, characters 1102–1147 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

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.

Burkholderia
Burkholderia · Interactor · picture from its Wikimedia Commons categoryMelww at English Wikipedia · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

t0

“fuel tea plant growth”

✓ located verbatim in the source · title, characters 83–104 · show in text ↑
e3

“tea roots secrete flavonol glycosides into the rhizosphere soil, which can recruit Burkholderia and further promote the growth of tea plants”

✓ located verbatim in the source · abstract, characters 1294–1434 · show in text ↑

aluminium atom · growth · Camellia sinensis (black tea)Results differ

16 papers: 14 positive, 2 negative or no effect

13 papers in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. negative
  3. negative

12 papers more in this group

See all 16 papers →

kaempferol · growth · Camellia sinensis (black tea)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

aluminium atom · molecular: metabolites · Camellia sinensis (black tea)Results agree

12 papers: 12 positive, 0 negative or no effect

11 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

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.