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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2019.01.020
|2 doi
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|a pubmed24n0977.xml
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|a (DE-627)NLM293130329
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|a (NLM)30685699
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|a (PII)S0981-9428(19)30028-2
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Zhang, Xianchen
|e verfasserin
|4 aut
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| 245 |
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|a Mesophyll cells' ability to maintain potassium is correlated with drought tolerance in tea (Camellia sinensis)
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|c 2019
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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 11.02.2019
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2019 Elsevier Masson SAS. All rights reserved.
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|a Tea plant is an important economic crop and is vulnerable to drought. A good understanding of tea drought tolerance mechanisms is required for breeding robust drought tolerant tea varieties. Previous studies showed mesophyll cells' ability to maintain K+ is associated with its stress tolerance. Here, in this study, 12 tea varieties were used to investigate the role of mesophyll K+ retention ability towards tea drought stress tolerance. A strong and negative correlation (R2 = 0.8239, P < 0.001) was found between PEG (mimic drought stress)-induced K+ efflux from tea mesophyll cells and overall drought tolerance in 12 tea varieties. In agreement with this, a significantly higher retained leaf K+ content was found in drought tolerant than the sensitive tea varieties. Furthermore, exogenous applied K+ (5 mM) significantly alleviated drought-induced symptom in tea plants, further supporting our finding that mesophyll K+ retention is an important component for drought tolerance mechanisms in tea plants. Moreover, pharmacological experiments showed that the contribution of K+ outward rectifying channels and non-selective cation channels in controlling PEG-induced K+ efflux from mesophylls cells are varied between drought tolerant and sensitive tea varieties
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|a Journal Article
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|a Drought
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|a K(+) channels
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|a K(+) fluxes
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|a Mesophyll K(+) retention
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|a Tea plant
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|a Potassium Channels
|2 NLM
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| 650 |
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|a Malondialdehyde
|2 NLM
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|a 4Y8F71G49Q
|2 NLM
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|a Hydrogen Peroxide
|2 NLM
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| 650 |
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|a BBX060AN9V
|2 NLM
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| 650 |
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|a Potassium
|2 NLM
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| 650 |
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|a RWP5GA015D
|2 NLM
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| 700 |
1 |
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|a Wu, Honghong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Linmu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Ningning
|e verfasserin
|4 aut
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| 700 |
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|a Wei, Chaoling
|e verfasserin
|4 aut
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| 700 |
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|a Wan, Xiaochun
|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 136(2019) vom: 15. März, Seite 196-203
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
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|g volume:136
|g year:2019
|g day:15
|g month:03
|g pages:196-203
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|u http://dx.doi.org/10.1016/j.plaphy.2019.01.020
|3 Volltext
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|d 136
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|h 196-203
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