Proton release by tea plant (Camellia sinensis L.) roots as affected by nutrient solution concentration and pH

Solution culture experiments were conducted and the protons released were measured with an automatic titration system to determine the main factors affecting proton release by tea roots. Results indicated that the higher were the cation concentrations, the more protons were released from the roots,...

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Main Authors: Q. Wan, R.K. Xu, X.H. Li
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2012-09-01
Series:Plant, Soil and Environment
Subjects:
Online Access:https://pse.agriculturejournals.cz/artkey/pse-201209-0007_proton-release-by-tea-plant-camellia-sinensis-l-roots-as-affected-by-nutrient-solution-concentration-and-ph.php
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author Q. Wan
R.K. Xu
X.H. Li
author_facet Q. Wan
R.K. Xu
X.H. Li
author_sort Q. Wan
collection DOAJ
description Solution culture experiments were conducted and the protons released were measured with an automatic titration system to determine the main factors affecting proton release by tea roots. Results indicated that the higher were the cation concentrations, the more protons were released from the roots, suggesting that tea roots took up a large amount of cations during growth, and then released protons to maintain charge balance of the plant body. The amount of protons released from tea roots at controlled pH was much higher than that in the treatments with uncontrolled pH. Stepwise multiple linear regression analysis showed that both NH4+ and Al(III) played distinct roles in proton release by tea plant roots. The uptake of Al(III) and NH4+ and subsequent release of protons may be an important mechanism for soil acidification in tea gardens.
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spelling doaj.art-4d631578349b4a05b06c7a927f4428442023-02-23T03:45:52ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682012-09-0158942943410.17221/326/2012-PSEpse-201209-0007Proton release by tea plant (Camellia sinensis L.) roots as affected by nutrient solution concentration and pHQ. Wan0R.K. Xu1X.H. Li2StateKey Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, P.R. ChinaStateKey Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, P.R. ChinaTea Science Research Institute, Nanjing Agriculture University, Nanjing, P.R. ChinaSolution culture experiments were conducted and the protons released were measured with an automatic titration system to determine the main factors affecting proton release by tea roots. Results indicated that the higher were the cation concentrations, the more protons were released from the roots, suggesting that tea roots took up a large amount of cations during growth, and then released protons to maintain charge balance of the plant body. The amount of protons released from tea roots at controlled pH was much higher than that in the treatments with uncontrolled pH. Stepwise multiple linear regression analysis showed that both NH4+ and Al(III) played distinct roles in proton release by tea plant roots. The uptake of Al(III) and NH4+ and subsequent release of protons may be an important mechanism for soil acidification in tea gardens.https://pse.agriculturejournals.cz/artkey/pse-201209-0007_proton-release-by-tea-plant-camellia-sinensis-l-roots-as-affected-by-nutrient-solution-concentration-and-ph.phpacidificationaluminumammoniumcharge balancetea gardens
spellingShingle Q. Wan
R.K. Xu
X.H. Li
Proton release by tea plant (Camellia sinensis L.) roots as affected by nutrient solution concentration and pH
Plant, Soil and Environment
acidification
aluminum
ammonium
charge balance
tea gardens
title Proton release by tea plant (Camellia sinensis L.) roots as affected by nutrient solution concentration and pH
title_full Proton release by tea plant (Camellia sinensis L.) roots as affected by nutrient solution concentration and pH
title_fullStr Proton release by tea plant (Camellia sinensis L.) roots as affected by nutrient solution concentration and pH
title_full_unstemmed Proton release by tea plant (Camellia sinensis L.) roots as affected by nutrient solution concentration and pH
title_short Proton release by tea plant (Camellia sinensis L.) roots as affected by nutrient solution concentration and pH
title_sort proton release by tea plant camellia sinensis l roots as affected by nutrient solution concentration and ph
topic acidification
aluminum
ammonium
charge balance
tea gardens
url https://pse.agriculturejournals.cz/artkey/pse-201209-0007_proton-release-by-tea-plant-camellia-sinensis-l-roots-as-affected-by-nutrient-solution-concentration-and-ph.php
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