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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1016/j.jplph.2012.06.008
|2 doi
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|a pubmed24n1222.xml
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|a eng
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|a Zhang, Maoying
|e verfasserin
|4 aut
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|a ZmMKK3, a novel maize group B mitogen-activated protein kinase kinase gene, mediates osmotic stress and ABA signal responses
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|c 2012
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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 11.04.2013
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2012 Elsevier GmbH. All rights reserved.
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|a Mitogen-activated protein kinase (MAPK) cascades are important intracellular signaling modules and function as a convergent point for crosstalk during abiotic stress signaling. In this article, we isolated a novel group B MAPKK gene, ZmMKK3, from Zea mays. ZmMKK3 protein might be localized in both the cytoplasm and the nucleus. RNA blot analysis indicated that the ZmMKK3 transcription was up-regulated by abscisic acid (ABA), hydrogen peroxide (H(2)O(2)) and PEG, and that H(2)O(2) mediated PEG-induced expression of ZmMKK3. Constitutive expression of ZmMKK3 in Nicotiana tabacum reduced H(2)O(2) accumulation under osmotic stress by affecting antioxidant defense systems and alleviated reactive oxygen species-mediated injury under oxidative stress. Transgenic tobacco exhibited attenuated ABA sensitivity by means of an increased germination rate and main root growth. Taken together, these results indicate that ZmMKK3 is a positive regulator of osmotic tolerance and ABA signaling in plants
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Polyethylene Glycols
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|a 3WJQ0SDW1A
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|a Abscisic Acid
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|a Hydrogen Peroxide
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|a Mitogen-Activated Protein Kinases
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|a EC 2.7.11.24
|2 NLM
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| 700 |
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|a Pan, Jiaowen
|e verfasserin
|4 aut
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|a Kong, Xiangpei
|e verfasserin
|4 aut
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|a Zhou, Yan
|e verfasserin
|4 aut
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|a Liu, Yang
|e verfasserin
|4 aut
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|a Sun, Liping
|e verfasserin
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|a Li, Dequan
|e verfasserin
|4 aut
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 169(2012), 15 vom: 15. Okt., Seite 1501-10
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|x 1618-1328
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|g volume:169
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|g pages:1501-10
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|u http://dx.doi.org/10.1016/j.jplph.2012.06.008
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