|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM378516663 |
| 003 |
DE-627 |
| 005 |
20241004233247.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
241004s2024 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1093/jxb/erae413
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n1557.xml
|
| 035 |
|
|
|a (DE-627)NLM378516663
|
| 035 |
|
|
|a (NLM)39365061
|
| 035 |
|
|
|a (PII)erae413
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Cardoso, João C F
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Flowers meet Newton
|b testing the role of gravitational pull in resupination of orchid flowers
|
| 264 |
|
1 |
|c 2024
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Revised 04.10.2024
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status Publisher
|
| 520 |
|
|
|a © The Author(s) 2024. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For commercial re-use, please contact reprintsoup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.
|
| 520 |
|
|
|a Resupination refers to the developmental orientation changes of flowers through ≈180º, leaving them effectively upside-down. It is a widespread trait present in 14 angiosperm families, including the Orchidaceae, where it is a gravitropic phenomenon actively controlled by auxins. Here, we demonstrate that the passive gravitational pull on flower parts can have an additional influence on resupination. We studied a lady's slipper orchid in which some flowers naturally fail to resupinate. We conducted a manipulative experiment removing floral parts and showed that both the probability of complete resupination and the degree of flower vertical movement (from 0º - 180º) are related to the mass of floral organs. During flower development, the tip of the ovary slightly curves actively (14.75º) due to gravitropism. This promotes a lever arm effect so that the gravitational pull acting on flower mass creates a torque that bends the ovary, orienting the flower into a resupinate position that is accessible to pollinators. The role of the mass of floral organs in resupination provides new insights into flower development and its role in pollination mechanisms
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a Flower orientation
|
| 650 |
|
4 |
|a Orchidaceae
|
| 650 |
|
4 |
|a gravity
|
| 650 |
|
4 |
|a labellum
|
| 650 |
|
4 |
|a pollination
|
| 650 |
|
4 |
|a resupination
|
| 700 |
1 |
|
|a Johnson, Steven D
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Oliveira, Paulo E
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Journal of experimental botany
|d 1985
|g (2024) vom: 04. Okt.
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
|
| 773 |
1 |
8 |
|g year:2024
|g day:04
|g month:10
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1093/jxb/erae413
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|j 2024
|b 04
|c 10
|