典型文献
Interaction of brassinosteroid and cytokinin promotes ovule initiation and increases seed number per silique in Arabidopsis
文献摘要：
Ovule initiation is a key step that strongly influ-ences ovule number and seed yield. Notably, mu-tants with enhanced brassinosteroid (BR) and cy-tokinin (CK) signaling produce more ovules and have a higher seed number per silique (SNS) than wild-type plants. Here, we crossed BR- and CK-related mutants to test whether these phyto-hormones function together in ovule initiation. We determined that simultaneously enhancing BR and CK contents led to higher ovule and seed numbers than enhancing BR or CK separately, and BR and CK enhanced each other. Further, the BR-response transcription factor BZR1 directly interacted with the CK-response transcription factor ARABI-DOPSIS RESPONSE REGULATOR1 (ARR1). Treat-ments with BR or BR plus CK strengthened this interaction and subsequent ARR1 targeting and induction of downstream genes to promote ovule initiation. Enhanced CK signaling partially rescued the reduced SNS phenotype of BR-deficient/insensitive mutants whereas enhanced BR sig-naling failed to rescue the low SNS of CK-deficient mutants, suggesting that BR regulates ovule ini-tiation and SNS through CK-mediated and -independent pathways. Our study thus reveals that interaction between BR and CK promotes ovule initiation and increases seed number, pro-viding important clues for increasing the seed yield of dicot crops.
文献关键词：
中图分类号：
作者姓名：
Song-Hao Zu;Yu-Tong Jiang;Jin-Hui Chang;Yan-Jie Zhang;Hong-Wei Xue;Wen-Hui Lin
作者机构：
School of Life Sciences and Biotechnology,The Joint International Research Laboratory of Metabolic and Developmental Sciences,Joint Center for Single Cell Biology,Shanghai Jiao Tong University,Shanghai 200240,China;School of Agriculture and Biology,Joint Center for Single Cell Biology,Shanghai Jiao Tong University,Shanghai 200240,China
文献出处：
引用格式：
[1]Song-Hao Zu;Yu-Tong Jiang;Jin-Hui Chang;Yan-Jie Zhang;Hong-Wei Xue;Wen-Hui Lin-.Interaction of brassinosteroid and cytokinin promotes ovule initiation and increases seed number per silique in Arabidopsis)[J].植物学报（英文版）,2022(03):702-716
A类：
Ovule,tokinin,ARABI,DOPSIS,REGULATOR1,ARR1,dicot
B类：
Interaction,brassinosteroid,cytokinin,promotes,initiation,increases,seed,per,silique,Arabidopsis,key,step,that,strongly,influ,ences,yield,Notably,enhanced,BR,signaling,produce,more,ovules,have,higher,SNS,than,wild,plants,Here,crossed,related,mutants,test,whether,these,phyto,hormones,function,together,We,determined,simultaneously,enhancing,contents,numbers,separately,each,other,Further,response,transcription,BZR1,directly,interacted,RESPONSE,Treat,ments,plus,strengthened,this,interaction,subsequent,targeting,induction,downstream,genes,Enhanced,partially,rescued,reduced,phenotype,deficient,insensitive,whereas,failed,low,suggesting,regulates,through,mediated,independent,pathways,Our,study,thus,reveals,between,viding,important,clues,increasing,crops
AB值：
0.458988
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