The CCCH-type Zinc Finger Protein ZNF1 is Involved in Brassinosteroid-regulated Plant Growth in Arabidopsis
Refereed conference paper presented and published in conference proceedings



摘要Brassinosteroids (BRs) are important steroidal hormones which can regulate numerous developmental processes in
plants, including cell expansion, cell division, senescence, male fertility, fruit ripening, and responses to environmental
stresses. BR signaling is mediated by a signaling pathway that is composed of the BR receptors BRI1/BAK1, transcription factors BZR1/BES1, and other signaling components. As a key transcription factor and positive regulator of BR signaling, BZR1 has been shown to mediate BR crosstalk with many other signaling pathways in plants. From a BZR1-based yeast two-hybrid screen, we identified a BZR1-interacting protein ZNF1, which is a CCCH-type zinc finger protein with putative transcriptional regulatory activity. ZNF1 and family proteins have been previously reported to be involved in plant response to abiotic stresses such as salinity; however, their functions in plant growth have been poorly understood. Here we show that ZNF1 interacts with BZR1 in vitro and in vivo and overexpression of ZNF1 inhibits plant growth. ZNF1 accumulation in plants is BR-inducible and overexpression of ZNF1 suppresses BZR1’sactivity in regulating plant growth, target gene expression and responses to BR treatments. Our results suggest that ZNF1 may represent a new negative regulator of pant growth and BR signaling.
著者Zheze Zhao, Mei-Hui Yu, Zhiyong Wang, Junxian He
會議名稱Plant Biology 2017
會議地點Honolulu, Hawaii
會議論文集題名Abstract/Poster Book, Plant Biology 2017
出版社American Society of Plant Biologists
出版地Honolulu, Hawaii, USA

上次更新時間 2018-07-05 於 12:17