Loading...
Please wait, while we are loading the content...
Similar Documents
From dark to darkness, negative phototropism influences the support-tree location of the massive woody climber Hydrangea serratifolia (Hydrangeaceae) in a Chilean temperate rainforest.
| Content Provider | Europe PMC |
|---|---|
| Author | Rodriguez-Quintero, W. David Moreno-Chacón, María Carrasco-Urra, Fernando Saldaña, Alfredo |
| Copyright Year | 2022 |
| Abstract | ABSTRACTClimbing plants rely on suitable support to provide the light conditions they require in the canopy. Negative phototropism is a directional search behavior proposed to detect a support-tree, which indicates growth or movement away from light, based on light attenuation. In a Chilean temperate rainforest, we addressed whether the massive woody climber Hydrangea serratifolia (H. et A.) F. Phil (Hydrangeaceae) presents a support-tree location pattern influenced by light availability. We analyzed direction and light received in two groups of juvenile shoots: searching shoots (SS), with plagiotropic (creeping) growth vs. ascending shoots (AS), with orthotropic growth. We found that, in accordance with light attenuation, SS and AS used directional orientation to search and then ascend host trees. The light available to H. serratifolia searching shoots was less than that of the general forest understory; the directional orientation in both groups showed a significant deviation from a random distribution, with no circular statistical difference between them. Circular-linear regression indicated a relationship between directional orientations and light availability. Negative phototropism encodes the light environment’s heterogeneous spatial and temporal information, guiding the shoot apex to the most shaded part of the support-tree base, the climbing start point. |
| Related Links | https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC9733698&blobtype=pdf |
| Page Count | 1 |
| ISSN | 15592316 |
| Journal | Plant Signaling & Behavior [Plant Signal Behav] |
| Volume Number | 17 |
| DOI | 10.1080/15592324.2022.2122244 |
| PubMed Central reference number | PMC9733698 |
| Issue Number | 1 |
| PubMed reference number | 36476262 |
| e-ISSN | 15592324 |
| Language | English |
| Publisher | Taylor & Francis |
| Publisher Date | 2022-12-01 |
| Access Restriction | Open |
| Rights License | This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. © 2022 The Author(s). Published with license by Taylor & Francis Group, LLC. |
| Subject Keyword | support-tree location woody root climber Hydrangeaceae temperate rainforest circular statistics negative phototropism |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science |
