| Categories genes  | Tags salt  tolerance  salt tolerance  salt stress  stress  nucleus  R protein  stress tolerance  stem  ga  GA  transcription factor  growth  resistance  internode elongation 
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  • Key message
    • A C2H2 zinc-finger protein OsZFP213 interacts with OsMAPK3 to enhance salt tolerance in rice.
    • Here, we report that the zinc-finger protein (ZFP) OsZFP213 functions in enhancing salt tolerance in rice
    • Transgenic rice overexpressing OsZFP213 showed enhanced salt tolerance compared with wild type and OsZFP213 RNAi plants
    • Furthermore, OsZFP213 overexpression plants showed higher transcription levels of antioxidant system genes and higher catalytic activity of scavenging enzymes of reactive oxygen, such as superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT), and glutathione reductase (GR), and a lower level of ROS accumulation than that in wild type and OsZFP213 RNAi plants under salt treatment
    • Taken together, these results suggest that OsZFP213 cooperates with OsMAPK3 in the regulation of rice salt stress tolerance by enhancing the ability of scavenging reactive oxygen
    • OsZFP213 is localized in the nucleus and has transactivation activity
    • The florigens reduce PINE1 expression to increase stem responsiveness to GA and promote flowering
    • By contrast, upregulation of DECELERATOR OF INTERNODE ELONGATION 1 (DEC1), which encodes a zinc-finger transcription factor, suppresses internode elongation, whereas downregulation of DEC1 allows internode elongation
    • Furthermore, an analysis of genetic diversity suggests that mutations in ACE1 and DEC1 have historically contributed to the selection of shorter plants in domesticated populations of rice to increase their resistance to lodging, and of taller plants in wild species of rice for adaptation to growth in deep water
    • We also show that the mechanism of internode elongation that is mediated by ACE1 and DEC1 is conserved in the Gramineae family
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