TaZAT8-5B, a C2H2 zinc finger protein transcription factor, positively regulates drought tolerance in transgenic Arabidopsis. It promotes root growth under drought stress via the Aux/IAA-ARF module in the auxin signaling pathway. C2H2 zinc finger proteins (C2H2-ZFPs) represent the largest but relatively unexplored family of transcription factors in plants.
View Article and Find Full Text PDFTo explore the possible novel microRNA (miRNA) regulatory pathways in Zhengmai 1860, a newly cultivated drought-tolerant wheat ( L.) cultivar, miRNA transcriptome sequencing of the flag leaves of Zhengmai 1860, drought-sensitive variety Zhoumai 18, and drought-resistant variety Bainong 207 was performed during the grain filling stage. We also observed changes in the chloroplast ultrastructure, phytohormone levels, and antioxidant- and photosynthesis-related physiological indicators in three wheat varieties.
View Article and Find Full Text PDFPsb28 is a soluble protein in the photosystem II (PSII) complex, but its role in the drought stress response of wheat remains unclear. Here, we functionally characterized the gene, which positively regulates drought tolerance in wheat. When the full-length 546-bp cDNA was transferred into , it was located in the guard cell chloroplast around the stroma.
View Article and Find Full Text PDFProgesterone is a steroid hormone that performs important functions in mammals. However, studies on its physiological functions in plants have gradually increased in recent years. Therefore, this review summarizes the regulatory functions of progesterone on plant growth and development, as well as its response to stress.
View Article and Find Full Text PDFDrought is an environmental factor that deeply impacts wheat yield and quality. Hydrogen sulfide (HS) is a known regulator of drought resistance in plants. To preliminarily elucidate the regulatory mechanisms of HS on drought tolerance, the effects of HS on drought-responsive genes were investigated by transcriptome analysis.
View Article and Find Full Text PDF