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Search: authors:"Yan-Hong Xu"

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Overexpression of BcbZIP134 negatively regulates the biosynthesis of saikosaponins

Chaihu, the dried roots of several Bupleurum species, are widely used as herbal drugs. Triterpene saponins, as saikosaponins (SSs) in Chaihu, exhibit a wide range of pharmacological actions, including significant anti-inflammatory, immunomodulatory, hepatoprotective, antioxidant, anti-tumor and antiviral activities. To explore the regulatory biosynthesis of SS in Bupleurum...

Changes of deceleration and acceleration capacity of heart rate in patients with acute hemispheric ischemic stroke

Changes of deceleration and acceleration capacity of heart rate in patients with acute hemispheric ischemic stroke Yan-Hong Xu,1 Xing-De Wang,2 Jia-Jun Yang,1 Li Zhou,2 Yong-Chao Pan1 1Department of

Auto- and Cross-repression of Three Arabidopsis WRKY Transcription Factors WRKY18, WRKY40, and WRKY60 Negatively Involved in ABA Signaling

Some members of the WRKY transcription factor family are known to be involved in ABA signaling. However, it remains unclear how the WRKY transcription factors cooperate to regulate ABA signaling. In the present study, we showed that three Arabidopsis (A. thaliana) WRKY proteins previously identified as ABA signaling regulators, WRKY18, WRKY40, and WRKY60, directly target the W...

Light-harvesting chlorophyll a/b-binding proteins, positively involved in abscisic acid signalling, require a transcription repressor, WRKY40, to balance their function

The light-harvesting chlorophyll a/b-binding (LHCB) proteins are the apoproteins of the light-harvesting complex of photosystem II. In the present study, we observed that downregulation of any of the six LHCB genes resulted in abscisic acid (ABA)-insensitive phenotypes in seed germination and post-germination growth, demonstrating that LHCB proteins are positively involved in...

Light-harvesting chlorophyll a/b-binding proteins are required for stomatal response to abscisic acid in Arabidopsis

The light-harvesting chlorophyll a/b binding proteins (LHCB) are perhaps the most abundant membrane proteins in nature. It is reported here that the down-regulation or disruption of any member of the LHCB family, LHCB1, LHCB2, LHCB3, LHCB4, LHCB5, or LHCB6, reduces responsiveness of stomatal movement to ABA, and therefore results in a decrease in plant tolerance to drought stress...