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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2017.09.002
|2 doi
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|a pubmed24n0919.xml
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|a (DE-627)NLM275878163
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|a (NLM)28917145
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|a (PII)S0981-9428(17)30293-0
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Li, Dongqin
|e verfasserin
|4 aut
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| 245 |
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|a Cell wall pectin methyl-esterification and organic acids of root tips involve in aluminum tolerance in Camellia sinensis
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 26.12.2017
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|a Date Revised 08.04.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2017 Elsevier Masson SAS. All rights reserved.
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|a Tea plant (Camellia sinensis (O.) Kuntze) can survive from high levels of aluminum (Al) in strongly acidic soils. However, the mechanism driving its tolerance to Al, the predominant factor limiting plant growth in acid condition, is still not fully understood. Here, two-year-old rooted cuttings of C. sinensis cultivar 'Longjingchangye' were used for Al resistance experiments. We found that the tea plants grew better in the presence of 0.4 mM Al than those grew under lower concentration of Al treatments (0 and 0.1 mM) as well as higher levels treatment (2 and 4 mM), confirming that appropriate Al increased tea plant growth. Hematoxylin staining assay showed that the apical region was the main accumulator in tea plant root. Subsequently, immunolocalization of pectins in the root tip cell wall showed a rise in low-methyl-ester pectin levels and a reduction of high-methyl-ester pectin content with the increasing Al concentration of treatments. Furthermore, we observed the increased expressions of C. sinensis pectin methylesterase (CsPME) genes along with the increasing de-esterified pectin levels during response to Al treatments. Additionally, the levels of organic acids increased steadily after treatment with 0.1, 0.4 or 2 mM Al, while they dropped after treatment with 4 mM Al. The organic acids secretion from root followed a similar trend. Similarly, a gradual increase in malate dehydrogenase (MDH), citrate synthase (CS) and glycolate oxidase (GO) enzyme activities and relevant metabolic genes expression were detected after the treatment of 0.1, 0.4 or 2 mM Al, while a sharp decrease was resulted from treatment with 4 mM Al. These results confirm that both pectin methylesterases and organic acids contribute to Al tolerance in C. sinensis
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|a Journal Article
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|a Aluminum tolerance
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|a Camellia sinensis
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|a Organic acids
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|a Pectin methyl-esterification
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|a Plant Proteins
|2 NLM
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|a Pectins
|2 NLM
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| 650 |
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|a 89NA02M4RX
|2 NLM
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| 650 |
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|a Aluminum
|2 NLM
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| 650 |
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|a CPD4NFA903
|2 NLM
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| 700 |
1 |
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|a Shu, Zaifa
|e verfasserin
|4 aut
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| 700 |
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|a Ye, Xiaoli
|e verfasserin
|4 aut
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|a Zhu, Jiaojiao
|e verfasserin
|4 aut
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|a Pan, Junting
|e verfasserin
|4 aut
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|a Wang, Weidong
|e verfasserin
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|a Chang, Pinpin
|e verfasserin
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|a Cui, Chuanlei
|e verfasserin
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|a Shen, Jiazhi
|e verfasserin
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|a Fang, Wanping
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|a Zhu, Xujun
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|a Wang, Yuhua
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 119(2017) vom: 01. Okt., Seite 265-274
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:119
|g year:2017
|g day:01
|g month:10
|g pages:265-274
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|u http://dx.doi.org/10.1016/j.plaphy.2017.09.002
|3 Volltext
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|a AR
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|d 119
|j 2017
|b 01
|c 10
|h 265-274
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