We have located links that may give you full text access.
Switchgrass PvDREB1C plays opposite roles in plant cold and salt tolerance in transgenic tobacco.
Hereditas 2018
Background: The C-repeat-binding factors/DRE-binding factors (CBF/DREBs) comprise a key transcription factor family involved in plant stress tolerance. Yet, there is limited information about switchgrass DREB genes and their functional roles.
Results: In this study, four cold-inducible PvDREB1s were identified from switchgrass ( Panicum virgatum ), among which PvDREB1C was the one responded to cold stress later than the other three PvDREB1s . Yet, ectopic overexpression of PvDREB1C led to significantly compromised, instead of improved cold tolerance in transgenic tobacco. On the other hand, PvDREB1C was transcriptionally down-regulated in response to salt stress, but overexpression of PvDREB1C improved plant salt tolerance in transgenic tobacco. The improved salt tolerance was associated with increased K+ /Na+ ratio and Ca2+ content, higher cellular osmotic potential, and activation of stress-related functional genes in the leaves of transgenic plants under salt stress.
Conclusions: The current results implied that PvDREB1C played opposite roles in plant cold and salt tolerance. Although DREB1s were known as positive stress regulators, particular attentions shall be paid to their potential negative regulatory role(s).
Results: In this study, four cold-inducible PvDREB1s were identified from switchgrass ( Panicum virgatum ), among which PvDREB1C was the one responded to cold stress later than the other three PvDREB1s . Yet, ectopic overexpression of PvDREB1C led to significantly compromised, instead of improved cold tolerance in transgenic tobacco. On the other hand, PvDREB1C was transcriptionally down-regulated in response to salt stress, but overexpression of PvDREB1C improved plant salt tolerance in transgenic tobacco. The improved salt tolerance was associated with increased K+ /Na+ ratio and Ca2+ content, higher cellular osmotic potential, and activation of stress-related functional genes in the leaves of transgenic plants under salt stress.
Conclusions: The current results implied that PvDREB1C played opposite roles in plant cold and salt tolerance. Although DREB1s were known as positive stress regulators, particular attentions shall be paid to their potential negative regulatory role(s).
Full text links
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app