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Yong-Tao Yu,Zhenwu Zhu,Kai Lu,Chao Bi,Shan Liang,Xiao-Fang Wang,Da-Peng Zhang 한국식물학회 2016 Journal of Plant Biology Vol.59 No.2
The phytohormone abscisic acid (ABA) plays a vital role in plant development and response to abiotic stress, and many components in ABA signaling remain to be discovered to fully understand the highly complex ABA signaling network. Here we reported that over-expression of MYB28 or MYB99, two R2R3 MYB transcription factors in Arabidopsis thaliana, confers hypersensitivity to exogenous ABA during seed germination, cotyledon greening and early seedling growth. However, both myb28-1 and myb99-1 knockout mutants exhibit wild-type ABA phenotypes most likely due to a functional redundancy of the multiple MYB members. Real-time PCR analysis shows that over-expression of the MYB28 or MYB99 changes expression of a subset of ABA-responsive genes. Collectively, these findings suggest that MYB28 and MYB99 play important, positive roles in ABA signaling during seed germination and early seedling growth.
Yuqun Zhuo,Yaming Fan,Zhenwu Zhu,Liangliang Li,Qun Chen,Yu Lou 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.10
The preparation of activated carbon sorbent for Hg removal was simplified by combining activation and functionalization processes into one step. Jujube-based carbon material was first mixed with CuCl2 solution and then activated for the preparation of Cu-impregnated activated carbon. Physical and chemical properties of prepared activated carbon were investigated by means of N2 adsorption, SEM-EDS, XRD. A fixed-bed reactor with CEMS (Continuous emission monitoring system) was used to test the Hg adsorption ability of prepared activated carbon. DFT (Density functional theory) method of computational chemistry calculation was applied to identify the Hg adsorption mechanisms on sorbent surface.