| RRC ID |
66116
|
| 著者 |
Shimoki A, Tsugawa S, Ohashi K, Toda M, Maeno A, Sakamoto T, Kimura S, Nobusawa T, Nagao M, Nitasaka E, Demura T, Okada K, Takeda S.
|
| タイトル |
Reduction in organ-organ friction is critical for corolla elongation in morning glory.
|
| ジャーナル |
Commun Biol
|
| Abstract |
In complex structures such as flowers, organ-organ interactions are critical for morphogenesis. The corolla plays a central role in attracting pollinators: thus, its proper development is important in nature, agriculture, and horticulture. Although the intraorgan mechanism of corolla development has been studied, the importance of organ-organ interactions during development remains unknown. Here, using corolla mutants of morning glory described approximately 200 years ago, we show that glandular secretory trichomes (GSTs) regulate floral organ interactions needed for corolla morphogenesis. Defects in GST development in perianth organs result in folding of the corolla tube, and release of mechanical stress by sepal removal restores corolla elongation. Computational modeling shows that the folding occurs because of buckling caused by mechanical stress from friction at the distal side of the corolla. Our results suggest a novel function of GSTs in regulating the physical interaction of floral organs for macroscopic morphogenesis of the corolla.
|
| 巻・号 |
4(1)
|
| ページ |
285
|
| 公開日 |
2021-3-5
|
| DOI |
10.1038/s42003-021-01814-x
|
| PII |
10.1038/s42003-021-01814-x
|
| PMID |
33674689
|
| PMC |
PMC7935917
|
| MeSH |
Computer Simulation
Flowers / genetics
Flowers / growth & development*
Friction
Ipomoea nil / genetics
Ipomoea nil / growth & development*
Models, Biological
Mutation
Plant Development*
Plants, Genetically Modified / genetics
Plants, Genetically Modified / growth & development*
Stress, Mechanical
Trichomes / genetics
Trichomes / growth & development*
|
| IF |
4.165
|
| リソース情報 |
| アサガオ |
Q510
Q513
Q531
Q532
Q533
Q1017
Q1089
Q1096
Q1097
Q1141 |
