Light from below matters : Quantifying the consequences of responses to far-red light reflected upwards for plant performance in heterogeneous canopies
© 2020 The Authors. Plant, Cell & Environment published by John Wiley & Sons Ltd..
In vegetation stands, plants receive red to far-red ratio (R:FR) signals of varying strength from all directions. However, plant responses to variations in R:FR reflected from below have been largely ignored despite their potential consequences for plant performance. Using a heterogeneous rose canopy, which consists of bent shoots down in the canopy and vertically growing upright shoots, we quantified upward far-red reflection by bent shoots and its consequences for upright shoot architecture. With a three-dimensional plant model, we assessed consequences of responses to R:FR from below for plant photosynthesis. Bent shoots reflected substantially more far-red than red light, causing reduced R:FR in light reflected upwards. Leaf inclination angles increased in upright shoots which received low R:FR reflected from below. The increased leaf angle led to an increase in simulated plant photosynthesis only when this low R:FR was reflected off their own bent shoots and not when it reflected off neighbour bent shoots. We conclude that plant response to R:FR from below is an under-explored phenomenon which may have contrasting consequences for plant performance depending on the type of vegetation or crop system. The responses are beneficial for performance only when R:FR is reflected by lower foliage of the same plants.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:44 |
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| Enthalten in: |
Plant, cell & environment - 44(2021), 1 vom: 18. Jan., Seite 102-113 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhang, Ningyi [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 08.06.2021 Date Revised 08.06.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/pce.13812 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 100 | 1 | |a Zhang, Ningyi |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Light from below matters |b Quantifying the consequences of responses to far-red light reflected upwards for plant performance in heterogeneous canopies |
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| 500 | |a Date Revised 08.06.2021 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2020 The Authors. Plant, Cell & Environment published by John Wiley & Sons Ltd. | ||
| 520 | |a In vegetation stands, plants receive red to far-red ratio (R:FR) signals of varying strength from all directions. However, plant responses to variations in R:FR reflected from below have been largely ignored despite their potential consequences for plant performance. Using a heterogeneous rose canopy, which consists of bent shoots down in the canopy and vertically growing upright shoots, we quantified upward far-red reflection by bent shoots and its consequences for upright shoot architecture. With a three-dimensional plant model, we assessed consequences of responses to R:FR from below for plant photosynthesis. Bent shoots reflected substantially more far-red than red light, causing reduced R:FR in light reflected upwards. Leaf inclination angles increased in upright shoots which received low R:FR reflected from below. The increased leaf angle led to an increase in simulated plant photosynthesis only when this low R:FR was reflected off their own bent shoots and not when it reflected off neighbour bent shoots. We conclude that plant response to R:FR from below is an under-explored phenomenon which may have contrasting consequences for plant performance depending on the type of vegetation or crop system. The responses are beneficial for performance only when R:FR is reflected by lower foliage of the same plants | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a heterogeneous canopy | |
| 650 | 4 | |a light absorption | |
| 650 | 4 | |a photosynthesis | |
| 650 | 4 | |a red to far-red ratio | |
| 650 | 4 | |a reflection | |
| 650 | 4 | |a rose (Rosa hybrida) | |
| 650 | 4 | |a shade-avoidance | |
| 650 | 4 | |a three-dimensional plant modelling | |
| 700 | 1 | |a van Westreenen, Arian |e verfasserin |4 aut | |
| 700 | 1 | |a He, Lizhong |e verfasserin |4 aut | |
| 700 | 1 | |a Evers, Jochem B |e verfasserin |4 aut | |
| 700 | 1 | |a Anten, Niels P R |e verfasserin |4 aut | |
| 700 | 1 | |a Marcelis, Leo F M |e verfasserin |4 aut | |
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