Abstract
The objective of this study was to examine the effects of different abiotic stresses on the activity of an NADP-dependent malic enzyme (NADP-ME) and the corresponding gene transcription in the leaves of the hexaploid wheat (Triticum aestivum L.) The activity of the NADP-ME enzyme was increased by water stress (20 % polyethylene glycol 6000), low temperature (4 °C), darkness, salinity (200 mM NaCl), abscisic acid and salicylic acid. The transcription of the TaNADP-ME1 gene decreased in response to all of the stresses except darkness and NaCl. In addition, the transcription of TaNADP-ME2 was down-regulated by all of the tested treatments and could not be detected under dark stress.
Abbreviations
- ABA:
-
abscisic acid
- CAM:
-
Crassulacean acid metabolism
- ME:
-
malic enzyme
- PEG:
-
polyethylene glycol
- SA:
-
salicylic acid
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Acknowledgments
This work is part of a doctoral degree program and was supported by grants from National Basic Research Program of China (2010CB951501) and the China National Science and Technology Uphold Plan (2009BADA3B01).
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Fu, Z.Y., Zhang, Z.B., Liu, Z.H. et al. The effects of abiotic stresses on the NADP-dependent malic enzyme in the leaves of the hexaploid wheat. Biol Plant 55, 196–200 (2011). https://doi.org/10.1007/s10535-011-0030-x
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DOI: https://doi.org/10.1007/s10535-011-0030-x