Zhong, Sheng and Li, Ling and Wang, Zhijuan and Ge, Zengxiang and Li, Qiyun and Bleckmann, Andrea and Wang, Jizong and Song, Zihan and Shi, Yihao and Liu, Tianxu and Li, Luhan and Zhou, Huabin and Wang, Yanyan and Zhang, Li and Wu, Hen-Ming and Lai, Luhua and Gu, Hongya and Dong, Juan and Cheung, Alice Y. and Dresselhaus, Thomas and Qu, Li-Jia (2022) RALF peptide signaling controls the polytubey block in Arabidopsis. SCIENCE, 375 (6578). 290-+. ISSN 0036-8075, 1095-9203
Full text not available from this repository. (Request a copy)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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | POLLEN-TUBE; RNA-SEQ; FERTILIZATION; PENETRATION; RELEASE; FUSION; |
| Subjects: | 500 Science > 550 Earth sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Lehrstuhl für Zellbiologie und Pflanzenphysiologie (Prof. Dr. Klaus Grasser) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 01 Feb 2024 10:29 |
| Last Modified: | 29 Feb 2024 13:01 |
| URI: | https://pred.uni-regensburg.de/id/eprint/58448 |
Actions (login required)
 |
View Item |
