Maternal control of suspensor programmed cell death via gibberellin signaling

Ce Shi, Pan Luo, Yu-Ting Du, Hong Chen, Xiaorong Huang, Tian-He Cheng, An Luo, Hong-Ju Li, Wei-Cai Yang, Peng Zhao () and Meng-Xiang Sun ()
Additional contact information
Ce Shi: Wuhan University
Pan Luo: Wuhan University
Yu-Ting Du: Wuhan University
Hong Chen: Wuhan University
Xiaorong Huang: Wuhan University
Tian-He Cheng: Wuhan University
An Luo: Wuhan University
Hong-Ju Li: Chinese Academy of Sciences
Wei-Cai Yang: Chinese Academy of Sciences
Peng Zhao: Wuhan University
Meng-Xiang Sun: Wuhan University

Nature Communications, 2019, vol. 10, issue 1, 1-12

Abstract: Abstract Plant embryos are generated and develop in a stable and well-protected microenvironment surrounded by maternal tissue, which is vital for embryogenesis. However, the signaling mechanisms responsible for maternal tissue-to-proembryo communication are not well understood. Here, we report a pathway for maternal tissue-to-proembryo communication. We identify a DELLA protein, NtCRF1 (NtCYS regulative factor 1), which regulates suspensor programmed cell death (PCD). NtCRF1 can bind to the promoter of NtCYS and regulate the suspensor PCD-switch module NtCYS-NtCP14 in response to gibberellin (GA). We confirm that GA4, as a primary signal triggering suspensor PCD, is generated in the micropylar endothelium by the transient activation of NtGA3oxs in the maternal tissue. Thus, we propose that GA is a maternal-to-proembryo communication signal that is decoded in the proembryo by a GID1-CRF1-CYS-CP14 signaling cascade. Using this mode of communication, maternal tissue precisely controls the embryonic suspensor PCD and is able to nurse the proembryo in a stage-dependent manner.

Date: 2019
References: Add references at CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/s41467-019-11476-3 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11476-3

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-019-11476-3

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().