A receptor-channel trio conducts Ca(2+) signalling for pollen tube reception.
A receptor-channel trio conducts Ca(2+) signalling for pollen tube reception.
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DOI:
10.1038/s41586-022-04923-7
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发表时间:
2022-07
期刊:
影响因子:
64.8
通讯作者:
Luan, Sheng
中科院分区:
文献类型:
--
作者:
Gao, Qifei;Wang, Chao;Xi, Yasheng;Shao, Qiaolin;Li, Legong;Luan, Sheng
Precise signaling between pollen tubes and synergid cells in the ovule initiates fertilization in flowering plants. The arrival of pollen tube to the ovule triggers Ca2+ spiking in the synergids that induce pollen tube rupture and sperm release. This process, named pollen tube reception, entails action of three synergid-expressed genes in Arabidopsis, including FERONIA (FER) encoding a receptor-like kinase (RLK), LORELEI (LRE) for a glycosylphosphatidylinositol (GPI)-anchored protein, and NORTIA (NTA) for a transmembrane protein of unknown function. While genetic analyses have placed these three players in the same pathway, it remains unknown how they work together to enable synergid-pollen tube communication. We identified two pollen-tube-derived small peptides of the rapid alkalinization factor (RALF) family as ligands for the FER-LRE co-receptor that in turn recruited NTA to the plasma membrane. We revealed that NTA functioned as a calmodulin-gated Ca2+ channel required for calcium spiking in the synergid. We further reconstituted the biochemical pathway in which FER-LRE perceived pollen tube-derived peptides to activate the NTA calcium channel and initiate calcium spiking, a second messenger for pollen tube reception. The FER-LRE-NTA trio thus formed a previously unanticipated receptor-channel complex in the female cell to recognize male signals and trigger fertilization process.
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影响因子:
64.5
作者:
Hwang JY;Mannowetz N;Zhang Y;Everley RA;Gygi SP;Bewersdorf J;Lishko PV;Chung JJ
通讯作者:
Chung JJ
DOI:
10.1126/science.1244454
发表时间:
2014-01-24
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Haruta M;Sabat G;Stecker K;Minkoff BB;Sussman MR
通讯作者:
Sussman MR
影响因子:
11.6
作者:
Chen, Zhongying;Noir, Sandra;Jones, Alan M.
通讯作者:
Jones, Alan M.
DOI:
10.1126/science.aao3642
发表时间:
2017-12-22
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Ge Z;Bergonci T;Zhao Y;Zou Y;Du S;Liu MC;Luo X;Ruan H;García-Valencia LE;Zhong S;Hou S;Huang Q;Lai L;Moura DS;Gu H;Dong J;Wu HM;Dresselhaus T;Xiao J;Cheung AY;Qu LJ
通讯作者:
Qu LJ
影响因子:
30.8
作者:
Consonni, Chiara;Humphry, Matthew E.;Panstruga, Ralph
通讯作者:
Panstruga, Ralph