| RRC ID |
71601
|
| 著者 |
Truskina J, Brück S, Stintzi A, Boeuf S, Doll NM, Fujita S, Geldner N, Schaller A, Ingram GC.
|
| タイトル |
A peptide-mediated, multilateral molecular dialogue for the coordination of pollen wall formation.
|
| ジャーナル |
Proc Natl Acad Sci U S A
|
| Abstract |
SignificancePollen viability depends on a tough external barrier called the pollen wall. Pollen wall components are produced by tapetum cells, which surround developing pollen grains within the anther. Precise coordination of tapetum activity with pollen grain development is required to ensure effective pollen wall formation. Here, we reveal that this is achieved through a multidirectional dialogue involving three distinct cell types. We show that peptide precursors from the tapetum are activated by proteases produced stage specifically in developing pollen grains. Unexpectedly, we found that activated peptides are perceived not in the tapetum, but in the middle layer, which encloses the developing tapetum and pollen grains, revealing an unsuspected role for this enigmatic cell layer in the control of tapetum development.
|
| 巻・号 |
119(22)
|
| ページ |
e2201446119
|
| 公開日 |
2022-5-31
|
| DOI |
10.1073/pnas.2201446119
|
| PMID |
35609199
|
| PMC |
PMC9295805
|
| MeSH |
Flowers*
Gene Expression Regulation, Plant
Peptides / metabolism
Pollen* / metabolism
|
| IF |
9.412
|
| リソース情報 |
| シロイヌナズナ / 植物培養細胞・遺伝子 |
pda11071 |
