典型文献
A feedback regulation between ARF7-mediated auxin signaling and auxin homeostasis involving MES17 affects plant gravitropism
文献摘要:
Gravitropism is an essential adaptive response of land plants. Asymmetric auxin gradients across plant organs, interpreted by multiple auxin signaling components including AUXIN RESPONSE FACTOR7 (ARF7), trigger differential growth and bending response. However, how this fundamental process is strictly maintained in nature remains un-clear. Here, we report that gravity stimulates the transcription of METHYL ESTERASE17 (MES17) along the lower side of the hypocotyl via ARF7-dependent auxin signaling. The asymmetric dis-tribution of MES17, a methyltransferase that con-verts auxin from its inactive form methyl indole-3-acetic acid ester (MeIAA) to its biologically active form free-IAA, enhanced the gradient of active auxin across the hypocotyl, which in turn reversely am-plified the asymmetric auxin responses and differ-ential growth that shape gravitropic bending. Taken together, our findings reveal the novel role of MES17-mediated auxin homeostasis in gravitropic responses and identify an ARF7-triggered feedback mechanism that reinforces the asymmetric dis-tribution of active auxin and strictly controls gravi-tropism in plants.
文献关键词:
中图分类号:
作者姓名:
Feng Zhang;Cuiling Li;Xingzhen Qu;Jiajia Liu;Zipeng Yu;Junxia Wang;Jiayong Zhu;Yongqiang Yu;Zhaojun Ding
作者机构:
The Key Laboratory of Plant Development and Environmental Adaptation Biology,Ministry of Education,College of Life Sciences,Shandong University,Qingdao 266237,China;Horticulture Biology and Metabolomics Center,Haixia Institute of Science and Technology,Fujian Agriculture and Forestry University,Fuzhou 350002,China
文献出处:
引用格式:
[1]Feng Zhang;Cuiling Li;Xingzhen Qu;Jiajia Liu;Zipeng Yu;Junxia Wang;Jiayong Zhu;Yongqiang Yu;Zhaojun Ding-.A feedback regulation between ARF7-mediated auxin signaling and auxin homeostasis involving MES17 affects plant gravitropism)[J].植物学报(英文版),2022(07):1339-1351
A类:
ARF7,MES17,gravitropism,Gravitropism,AUXIN,FACTOR7,METHYL,ESTERASE17,verts,MeIAA,gravitropic
B类:
feedback,regulation,between,mediated,auxin,signaling,homeostasis,involving,affects,essential,adaptive,land,plants,Asymmetric,gradients,across,organs,interpreted,by,multiple,components,including,RESPONSE,differential,growth,bending,However,how,this,fundamental,process,strictly,maintained,nature,remains,clear,Here,report,that,gravity,stimulates,transcription,along,lower,side,hypocotyl,via,dependent,asymmetric,dis,tribution,methyltransferase,from,its,inactive,form,indole,acetic,acid,ester,biologically,free,enhanced,which,turn,reversely,plified,responses,shape,Taken,together,our,findings,reveal,novel,role,identify,triggered,mechanism,reinforces,controls
AB值:
0.439491
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