Abstract
The effects of aqueous solution of tea pruning materials and tea polyphenols on tea plant [Camellia sinensis(L.)] growth and the mechanisms were investigated using hydroponic culture in th is paper.The plants were harvested and root exudates were collected after growing periods of 15,35,55,75 and 95 d.The contents of organic acids in the secretes from roots were determined using a HPLC equipped with C18 column after passed through cation and anion exchange resin and concentrated.Besides,the dry weight,tea polyphenols and mineral uptake were analyzed.The results showed that tea polyphenols added in nutrient solution inhibited the uptake of Ca,Mg,Fe,Mn,Zn and growth rate and induced citric and succinic acids efflux from roots.Ho wever,the aqueous solution of tea pruning materials added in nutrient solution promoted the uptake of K,Ca,Mg,Fe,Mn,Zn,Al and growth rate and at the meantime induced oxalic,malic,citric and succinic acids efflux from roots.Besides,the aqueous so lution of tea pruning materials also lowered p H of collection solution,which were closely linked with organic acids secretion changes,hinting tea pruning materials may result in soil acidification.
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Claims 12
Claim · model-written summary
Tea polyphenols inhibited the uptake of Ca, Mg and Fe by tea plants.
- Taxon
- tea plante0
- Treatment
- tea polyphenols added in nutrient solutione1
- Outcome
- uptake of Ca,Mg,Fee1
- Direction
- inhibitede1
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e1“The results showed that tea polyphenols added in nutrient solution inhibited the uptake of Ca,Mg,Fe,Mn,Zn and growth rate and induced citric and succinic acids efflux from roots”
Claim · model-written summary
Tea polyphenols inhibited the uptake of Mn and Zn by tea plants.
- Taxon
- tea plante0
- Treatment
- tea polyphenols added in nutrient solutione1
- Outcome
- Mn,Zne1
- Direction
- inhibitede1
- Qualifier
- uptakee1
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e1“The results showed that tea polyphenols added in nutrient solution inhibited the uptake of Ca,Mg,Fe,Mn,Zn and growth rate and induced citric and succinic acids efflux from roots”
Claim · model-written summary
Tea polyphenols inhibited the growth rate of tea plants.
- Taxon
- tea plante0
- Treatment
- tea polyphenols added in nutrient solutione1
- Outcome
- growth ratee1
- Direction
- inhibitede1
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e1“The results showed that tea polyphenols added in nutrient solution inhibited the uptake of Ca,Mg,Fe,Mn,Zn and growth rate and induced citric and succinic acids efflux from roots”
Claim · model-written summary
Tea polyphenols induced efflux of citric and succinic acids from tea plant roots.
- Taxon
- tea plante0
- Treatment
- tea polyphenols added in nutrient solutione1
- Outcome
- citric and succinic acids effluxe1
- Direction
- inducede1
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e1“The results showed that tea polyphenols added in nutrient solution inhibited the uptake of Ca,Mg,Fe,Mn,Zn and growth rate and induced citric and succinic acids efflux from roots”
Claim · model-written summary
Aqueous solution of tea pruning materials promoted the uptake of K, Ca and Mg by tea plants.
- Taxon
- tea plante0
- Treatment
- aqueous solution of tea pruning materialse2
- Outcome
- uptake of K,Ca,Mge2
- Direction
- promotede2
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e2“the aqueous solution of tea pruning materials added in nutrient solution promoted the uptake of K,Ca,Mg,Fe,Mn,Zn,Al and growth rate and at the meantime induced oxalic,malic,citric and succinic acids efflux from roots”
Claim · model-written summary
Aqueous solution of tea pruning materials promoted the uptake of Fe, Mn and Zn by tea plants.
- Taxon
- tea plante0
- Treatment
- aqueous solution of tea pruning materialse2
- Outcome
- Fe,Mn,Zne2
- Direction
- promotede2
- Qualifier
- uptakee2
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e2“the aqueous solution of tea pruning materials added in nutrient solution promoted the uptake of K,Ca,Mg,Fe,Mn,Zn,Al and growth rate and at the meantime induced oxalic,malic,citric and succinic acids efflux from roots”
Claim · model-written summary
Aqueous solution of tea pruning materials promoted the uptake of Al by tea plants.
- Taxon
- tea plante0
- Treatment
- aqueous solution of tea pruning materialse2
- Outcome
- Ale2
- Direction
- promotede2
- Qualifier
- uptakee2
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e2“the aqueous solution of tea pruning materials added in nutrient solution promoted the uptake of K,Ca,Mg,Fe,Mn,Zn,Al and growth rate and at the meantime induced oxalic,malic,citric and succinic acids efflux from roots”
Claim · model-written summary
Aqueous solution of tea pruning materials promoted the growth rate of tea plants.
- Taxon
- tea plante0
- Treatment
- aqueous solution of tea pruning materialse2
- Outcome
- growth ratee2
- Direction
- promotede2
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e2“the aqueous solution of tea pruning materials added in nutrient solution promoted the uptake of K,Ca,Mg,Fe,Mn,Zn,Al and growth rate and at the meantime induced oxalic,malic,citric and succinic acids efflux from roots”
Claim · model-written summary
Aqueous solution of tea pruning materials induced efflux of oxalic, malic and citric acids from tea plant roots.
- Taxon
- tea plante0
- Treatment
- aqueous solution of tea pruning materialse2
- Outcome
- oxalic,malic,citrice2
- Direction
- inducede2
- Qualifier
- acids effluxe2
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e2“the aqueous solution of tea pruning materials added in nutrient solution promoted the uptake of K,Ca,Mg,Fe,Mn,Zn,Al and growth rate and at the meantime induced oxalic,malic,citric and succinic acids efflux from roots”
Claim · model-written summary
Aqueous solution of tea pruning materials induced efflux of succinic acid from tea plant roots.
- Taxon
- tea plante0
- Treatment
- aqueous solution of tea pruning materialse2
- Outcome
- succinic acids effluxe2
- Direction
- inducede2
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e2“the aqueous solution of tea pruning materials added in nutrient solution promoted the uptake of K,Ca,Mg,Fe,Mn,Zn,Al and growth rate and at the meantime induced oxalic,malic,citric and succinic acids efflux from roots”
Claim · model-written summary
Aqueous solution of tea pruning materials lowered the pH of the collection solution.
- Taxon
- tea plante0
- Treatment
- aqueous solution of tea pruning materialse2
- Outcome
- p H of collection solutione3
- Direction
- lowerede3
Not reportedComparator
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e2“the aqueous solution of tea pruning materials added in nutrient solution promoted the uptake of K,Ca,Mg,Fe,Mn,Zn,Al and growth rate and at the meantime induced oxalic,malic,citric and succinic acids efflux from roots”
e3“also lowered p H of collection solution, which were closely linked with organic acids secretion changes”
Claim · model-written summary
The pH of the collection solution was closely linked with changes in organic acid secretion in tea plants.
Not reportedDirection
Verbatim
e0“tea plant [Camellia sinensis(L.)] growth”
e3“also lowered p H of collection solution, which were closely linked with organic acids secretion changes”
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