| Title | RALF peptide signaling controls the polytubey block in Arabidopsis |
| Authors | Zhong, Sheng Li, Ling Wang, Zhijuan Ge, Zengxiang Li, Qiyun Bleckmann, Andrea Wang, Jizong Song, Zihan Shi, Yihao Liu, Tianxu Li, Luhan Zhou, Huabin Wang, Yanyan Zhang, Li Wu, Hen-Ming Lai, Luhua Gu, Hongya Dong, Juan Cheung, Alice Y. Dresselhaus, Thomas Qu, Li-Jia |
| Affiliation | Peking Univ, Coll Life Sci, State Key Lab Prot & Plant Gene Res, Peking Tsinghua Ctr Life Sci, Beijing 100871, Peoples R China Univ Regensburg, Cell Biol & Plant Biochem, D-93053 Regensburg, Germany Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China Univ Massachusetts, Dept Biochem & Mol Biol, Plant Biol Program, Mol & Cell Biol Program, Amherst, MA 01003 USA Natl Plant Gene Res Ctr Beijing, Beijing 100101, Peoples R China Rutgers State Univ, Waksman Inst Microbiol, Piscataway, NJ 08854 USA IST Austria, A-3400 Klosterneuburg, Austria |
| Keywords | POLLEN-TUBE RNA-SEQ FERTILIZATION PENETRATION RELEASE FUSION |
| Issue Date | 21-Jan-2022 |
| Publisher | SCIENCE |
| Abstract | Fertilization of an egg by multiple sperm (polyspermy) leads to lethal genome imbalance and chromosome segregation defects. In Arabidopsis thaliana, the block to polyspermy is facilitated by a mechanism that prevents polytubey (the arrival of multiple pollen tubes to one ovule). We show here that FERONIA, ANJEA, and HERCULES RECEPTOR KINASE 1 receptor-like kinases located at the septum interact with pollen tube-specific RALF6, 7,16, 36, and 37 peptide ligands to establish this polytubey block, The same combination of RALF (rapid alkalinization factor) peptides and receptor complexes controls pollen tube reception and rupture inside the targeted ovule. Pollen tube rupture releases the polytubey block at the septum, which allows the emergence of secondary pollen tubes upon fertilization failure. Thus, orchestrated steps in the fertilization process in Arabidopsis are coordinated by the same signaling components to guarantee and optimize reproductive success. |
| URI | http://hdl.handle.net/20.500.11897/637068 |
| ISSN | 0036-8075 |
| DOI | 10.1126/science.ab14683 |
| Indexed | SCI(E) |
| Appears in Collections: | 生命科学学院 å å¦ä¸ å å å·¥ç¨ å¦é ¢ |
