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| 1 | The jasmonate-induced bHLH gene SlJIG functions in terpene biosynthesis and resistance to insects and fungus显示文摘Jasmonic acid(JA)is a key regulator of plant defense responses.Although the transcription factor MYC2,the master regulator of the JA signaling pathway,orchestrates a hierarchical transcriptional cascade that regulates the JA responses,only a few transcriptional regulators involved in this cascade have been described.Here,we identified the basic helix-loop-helix(bHLH)transcription factor gene in tomato(Solanum lycopersicum),METHYL JASMONATE(MeJA)-INDUCED GENE(SlJIG),the expression of which was strongly induced by MeJA treatment.Genetic and molecular biology experiments revealed that SlJIG is a direct target of MYC2.SlJIG knockout plants generated by gene editing had lower terpene contents than the wild type from the lower expression of TERPENE SYNTHASE(TPS)genes,rendering them more appealing to cotton bollworm(Helicoverpa armigera).Moreover,SlJIG knockouts exhibited weaker JA-mediated induction of TPSs,suggesting that SlJIG may participate in JA-induced terpene biosynthesis.Knocking out SlJIG also resulted in attenuated expression of JA-responsive defense genes,which may contribute to the observed lower resistance to cotton bollworm and to the fungus Botrytis cinerea.We conclude that SlJIG is a direct target of MYC2,forms a MYC2-SlJIG module,and functions in terpene biosynthesis and resistance against cotton bollworm and B.cinerea. | Yunyun Cao Lun Liu Kangsheng Ma Wenjing Wang Hongmei Lv Ming Gao Xinman Wang Xichun Zhang Shuxin Ren Na Zhang Yang-Dong Guo | 2022 | Journal of Integrative Plant Biology2022，64，5： | 4 |
| 2 | Influence of alloplasm on resistance to wheat scab显示文摘Using alloplasmic wheat as test materials, the genetic effect of cytoplasm on wheat scab resistance was studied by three methods including the determination of resistance of explant calli to Gibberella zeae toxin, the identification of inoculating single fixed position and the identification of field resistance. The results showed that among 'the homonucleo_heterocytoplasmic lines', resistance of calli to G. zeae toxin was different; the difference of cytoplasmic effect among different nucleoplasm combinations showed certain nucleoplasm interaction relation. Resistance of hybrid F 1 plants of reciprocal cross between alloplasmic line and disease-sensitive wheat variety to wheat scab was of clear difference. Hybrid F 1 of reciprocal cross between Ae. ventricosa cytoplasmic wheat and disease-sensitive or -resistant wheat variety all exhibited fine resistance effect of alloplasm. Compared with general common wheat variety, most alloplasmic wheats tested have stronger resistance. A few selected lines having Ae. ventricosa cytoplasm have a strong and stable resistance to scab. They can be a finer new resistant source. | Wu Yuwen Ren Shuxin Liu Chunguang Hou Ning Zhang Cuilan Zhang Yan | 1998 | Chinese Science Bulletin1998，43，12： | 2 |
| 3 | Modifed Pre-stretching Assembly Method for Cable-Driven Systems显示文摘Soft cable-driven systems have been employed in many assembled mechanisms, such as industrial robots, parallel kinematic mechanism machines, medical devices, and humaniform hands. A pre-stretching process is necessary to guarantee the quality of cable-driven systems during the assembly process. However, the stress relaxation of cables becomes a critical concern during long-term operation. This study investigates the effects of non-uniform deformation and long-term stress relaxation of the driven cables owing to moving parts in the system. A simple closed-loop cable-driven system is built and an alternating load is applied to it to replicate the operation of transmission cables. Under different experimental conditions, the cable tension is recorded and the boundary data are selected to be curve-fitted. Based on the fitted results, a formula is presented to estimate the stress relaxation of cables to evaluate the assembly performance. Further experimental results show that the stress relaxation is mainly caused by cable creep and the assembly procedure. To remove the influence of the assembly procedure, a modified pre-stretching assembly method based on the stress relaxation theory is proposed and verification experiments are performed. Finally, the assembly performance is optimized using a cable-driven surgical robot as an example. This paper proposes a dual stretching method instead of the pre-stretching method to assemble the cable-driven system to improve its performance and prolong its service life. | Guokai Zhang Xuyang Ren Jinhua Li Kang Kong Shuxin Wang Jingchao Shen | 2019 | Chinese Journal of Mechanical Engineering2019，32，3： | 2 |
| 4 | The RNA ‐seq approach to discriminate gene expression profiles in response to melatonin on cucumber lateral root formation显示文摘 | Na Zhang Hai‐Jun Zhang Bing Zhao Qian‐Qian Sun Yun‐Yun Cao Ren Li Xin‐Xin Wu Sarah Weeda Li Li Shuxin Ren Russel J. Reiter Yang‐Dong Guo | 2014 | J Pineal Res2014，，1： | 1 |
| 5 | A Dual Role of Se on Cd Toxicity: Evidences from the Uptake of Cd and Some EssentialElements and the Growth Responses in Paddy Rice 显示文摘 | Ren wei Feng Chao yang Wei Shuxin Tu | 2013 | Biological Trace Element Research2013，151，1： | 1 |
| 6 | Hormones and carbohydrates synergistically regulate the formation of swollen roots in a Chinese cabbage translocation line显示文摘The genus Brassica contains a rich diversity of species and morphological types,including leaf,root,and oil crops,all of which show substantial phenotypic variation.Both Chinese cabbage and cabbage are typical leaf-type crops with normal roots.We created translocation lines based on interspecific crosses between Chinese cabbage and cabbage and identified qdh225,which exhibited a swollen-root phenotype.The swollen root of qdh225 contained a large number of granular substances,and the formation of its irregular morphological tissue was caused by a thickening of the phloem.Transcriptomic and metabolomic data suggested that differential expression of genes encoding nine types of enzymes involved in starch and sucrose metabolism caused changes in starch synthesis and degradation in the swollen root.These genes jointly regulated sucrose and starch levels,leading to significant enrichment of starch and soluble proteins in the swollen root and a reduction in the content of soluble sugars such as d-glucose and trehalose 6-phosphate.A significant increase in auxin(IAA)and abscisic acid(ABA)contents and a decrease in gibberellin(GA)content in the swollen root likely promoted the differential expression of genes associated with hormone signal transduction,thereby regulating the development of the swollen root.Taken together,our data suggest that accumulation of IAA and ABA and reduction in GA promote swollen root formation by regulating hormone-mediated signaling,leading to a thickening of phloem,root enlargement,and substantial accumulation of starch and soluble proteins.The latter provide materials,energy,and nutrient sources for the development of swollen roots. | Xiaojing Ren Wei Ma Shuxin Xuan Dandan Li Yanhua Wang Yuanchao Xu Daling Feng Jianjun Zhao Xueping Chen Shuangxia Luo Shuxing Shen Aixia Gu | 2023 | Horticulture Research2023，10，8： | 0 |
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