Arabidopsis pollen tube integrity and sperm release are regulated by RALF-mediated signaling.
Arabidopsis pollen tube integrity and sperm release are regulated by RALF-mediated signaling.
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拟南芥花粉管完整性和精子释放受 RALF 介导的信号调节
DOI:
10.1126/science.aao3642
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发表时间:
2017-12-22
期刊:
影响因子:
--
通讯作者:
Qu LJ
中科院分区:
文献类型:
--
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
In flowering plants, fertilization requires complex cell-to-cell communication events between the pollen tube and the female reproductive tissues, which are controlled by extracellular signaling molecules interacting with receptors at the pollen tube surface. We found that two such receptors in Arabidopsis, BUPS1 and BUPS2, and their peptide ligands, RALF4 and RALF19, are pollen tube–expressed and are required to maintain pollen tube integrity. BUPS1 and BUPS2 interact with receptors ANXUR1 and ANXUR2 via their ectodomains, and both sets of receptors bind RALF4 and RALF19. These receptor-ligand interactions are in competition with the female-derived ligand RALF34, which induces pollen tube bursting at nanomolar concentrations. We propose that RALF34 replaces RALF4 and RALF19 at the interface of pollen tube–female gametophyte contact, thereby deregulating BUPS-ANXUR signaling and in turn leading to pollen tube rupture and sperm release.
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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:
10.5
作者:
Lin G;Zhang L;Han Z;Yang X;Liu W;Li E;Chang J;Qi Y;Shpak ED;Chai J
通讯作者:
Chai J
影响因子:
7.4
作者:
Li, Chao;Wu, H. -M.;Cheung, Alice Y.
通讯作者:
Cheung, Alice Y.
DOI:
10.1073/pnas.1005366107
发表时间:
2010-10-12
影响因子:
11.1
作者:
Duan, Qiaohong;Kita, Daniel;Wu, Hen-Ming
通讯作者:
Wu, Hen-Ming
影响因子:
64.8
作者:
Takeuchi, Hidenori;Higashiyama, Tetsuya
通讯作者:
Higashiyama, Tetsuya