Interaction between wheat translationally controlled tumor protein TCTP and SNF1-related protein kinase SnRK1 / 生物工程学报

Translationally controlled tumor proteins (TCTP) and SNF1- related protein kinase (SnRK1) are conserved and widely present in eukaryotic cells. TCTP regulates cell division, plant growth and development, and mediates plant resistance against pathogen infection. SnRK1 participates in a range of physiological processes including sugar metabolism and resistance to abiotic and biotic stresses. Previous work in our laboratory demonstrated that wheat TCTP can respond to Puccinia triticina infection and induce host defense responses. In order to further investigate the mechanism of TaTCTP in wheat resistance to Puccinia triticina infection, we used TAP (tandem affinity purification) and mass spectrometry to screen the potential interactants of TaTCTP. A SNF1- related protein kinase (SnRK1) was identified as a potential interacting protein of TaTCTP. The results of yeast two-hybrid assay showed that TCTP could interact with SnRK1 in yeast, and the yeast carrying TCTP and SnRK1 could grow on SD/-Leu/-Trp/-His/-Ade (SD/-LWHA) medium. The fluorescence signal of the interaction between TCTP and SnRK1 was found to be distributed in the cytoplasm in the Bi-fluorescense complementation experiment. Co-IP experiments further showed that TCTP and SnRK1 could interact in plant cells. This study lays an important foundation for further studying the mechanism of TaTCTP in the interaction between wheat and Puccinia triticina, and it play a great influence on further improving the molecular mechanism of wheat resistant to Puccinia triticina.

The effect of health intervention to changeable risk factors in persons with diabetes prophase / 中华健康管理学杂志

Objective To evaluate the value of health intervention to changeable risk factors in persons with diabetes prophase.Methods One hundred and eighteen persons in diabetes prophase were divided into two groups randomly.For 58 persons enrolled in the experimental group,health intervention including lectures of diabetes basic knowledge,introducing the necessity and significance of periodical check up and examination,suitable dietary and nutrition,weight control,physical exercise and movement was performed.For 60 persons enrolled in the control group,only the diagnosis of diabetes prophase was informed.The incidence of normalization of blood glucose and progressing to dominant diabetes was compared between the experimental group and the control group after follow-up for 6 months and 12 months.Results After 6 months of intervention,the difference of the number of persons was not significant for normalization of blood glucose between experimental group and control group(x2=0.04 and 0.79,P=0.84 and 0.12 for persons with IFG and IGT respectively),and was also not significant for progressing to dominant diabetes between the two groups(x2=0.96,P=0.33).After 12 months of intervention,the difference of the number of persons was significant for normalization of blood glucose between experimental group and control group(x2=13.34 and 22.58,P<0.01 and<0.01 for persons with IFG and IGT respectively),but still not significant for progressing to dominant diabetes between the two groups(x2=2.83,P=0.09).Conclusions The intervention to changeable risk factors can prevent or delay the occurrence of diabetes mellitus,and improve the quality of life for person with diabetes prophase.