bZIP TFs involved in drought stress response
Drought is an adverse
environmental factor that threatens plant growth and development. Many
plant bZIP family members are involved in response to drought stress.
Series of studies have shown that many rice bZIP transcription factors
are involved in drought resistance. Liu et al. (2014b) found that riceOsbZIP71 directly binds to the promoters of OsNHX1 andCOR413-TM1 and activates their transcription so as to enhance
drought resistance of transgenic rice. Except rice, some drought-related
bZIP transcription factor genes cloned in other plants also
significantly enhanced the drought resistance of transgenic crops.
Overexpression of maize ABP9 confers excellent drought tolerance
to transgenic Arabidopsis thaliana plant (Wang et al., 2017a).
During seed germination and plant development, transgenic ramie plants
overexpressing ramie BnbZIP2 were more tolerant to salt stress
than wild-type and more sensitive to drought stress (Huang et al.,
2016). In addition, overexpression of transcription factors such asArabidopsis thaliana ABF3 (Wang et al., 2016b) and wheat TabZIP60
(Zhang et al., 2015b) in plants can significantly improve the drought
resistance of transgenic plants. On the contrary, Lim et al. (2018)
found that the pepper bZIP transcription factor CaDILZ1 plays a negative
regulatory role in response to drought stress.