Plant-plant interactions mediate the plastic and genotypic response of Plantago asiatica to CO2: An experiment with plant populations from naturally high CO2 areas

Marloes P. Van Loon, Max Rietkerk, Stefan C. Dekker, Kouki Hikosaka, Miki U. Ueda, Niels P.R. Anten

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Abstract

Background and Aims The rising atmospheric CO2 concentration ([CO2]) is a ubiquitous selective force that may strongly impact species distribution and vegetation functioning. Plant-plant interactions could mediate the trajectory of vegetation responses to elevated [CO2], because some plants may benefit more from [CO2] elevation than others. The relative contribution of plastic (within the plant's lifetime) and genotypic (over several generations) responses to elevated [CO2] on plant performance was investigated and how these patterns are modified by plant-plant interactions was analysed. Methods Plantago asiatica seeds originating from natural CO2 springs and from ambient [CO2] sites were grown in mono stands of each one of the two origins as well as mixtures of both origins. In total, 1944 plants were grown in [CO2]-controlled walk-in climate rooms, under a [CO2] of 270, 450 and 750 ppm. A model was used for upscaling from leaf to whole-plant photosynthesis and for quantifying the influence of plastic and genotypic responses. Key Results It was shown that changes in canopy photosynthesis, specific leaf area (SLA) and stomatal conductance in response to changes in growth [CO2] were mainly determined by plastic and not by genotypic responses. We further found that plants originating from high [CO2] habitats performed better in terms of whole-plant photosynthesis, biomass and leaf area, than those from ambient [CO2] habitats at elevated [CO2] only when both genotypes competed. Similarly, plants from ambient [CO2] habitats performed better at low [CO2], also only when both genotypes competed. No difference in performance was found in mono stands. Conclusion The results indicate that natural selection under increasing [CO2] will be mainly driven by competitive interactions. This supports the notion that plant-plant interactions have an important influence on future vegetation functioning and species distribution. Furthermore, plant performance was mainly driven by plastic and not by genotypic responses to changes in atmospheric [CO2].

Original languageEnglish
Pages (from-to)1197-1207
JournalAnnals of Botany
Volume117
Issue number7
DOIs
Publication statusPublished - 2016

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Plantago asiatica
plastics
photosynthesis
vegetation
leaf area
biogeography
habitats

Keywords

  • Canopy functioning
  • climate change
  • competition
  • elevated CO
  • evolutionary response
  • game theory
  • genotypic response
  • naturally high CO
  • plant-plant interactions
  • Plantago asiatica L.
  • plastic response
  • selection pressure

Cite this

@article{794c846ff5f94b7c8914657df497f9fc,
title = "Plant-plant interactions mediate the plastic and genotypic response of Plantago asiatica to CO2: An experiment with plant populations from naturally high CO2 areas",
abstract = "Background and Aims The rising atmospheric CO2 concentration ([CO2]) is a ubiquitous selective force that may strongly impact species distribution and vegetation functioning. Plant-plant interactions could mediate the trajectory of vegetation responses to elevated [CO2], because some plants may benefit more from [CO2] elevation than others. The relative contribution of plastic (within the plant's lifetime) and genotypic (over several generations) responses to elevated [CO2] on plant performance was investigated and how these patterns are modified by plant-plant interactions was analysed. Methods Plantago asiatica seeds originating from natural CO2 springs and from ambient [CO2] sites were grown in mono stands of each one of the two origins as well as mixtures of both origins. In total, 1944 plants were grown in [CO2]-controlled walk-in climate rooms, under a [CO2] of 270, 450 and 750 ppm. A model was used for upscaling from leaf to whole-plant photosynthesis and for quantifying the influence of plastic and genotypic responses. Key Results It was shown that changes in canopy photosynthesis, specific leaf area (SLA) and stomatal conductance in response to changes in growth [CO2] were mainly determined by plastic and not by genotypic responses. We further found that plants originating from high [CO2] habitats performed better in terms of whole-plant photosynthesis, biomass and leaf area, than those from ambient [CO2] habitats at elevated [CO2] only when both genotypes competed. Similarly, plants from ambient [CO2] habitats performed better at low [CO2], also only when both genotypes competed. No difference in performance was found in mono stands. Conclusion The results indicate that natural selection under increasing [CO2] will be mainly driven by competitive interactions. This supports the notion that plant-plant interactions have an important influence on future vegetation functioning and species distribution. Furthermore, plant performance was mainly driven by plastic and not by genotypic responses to changes in atmospheric [CO2].",
keywords = "Canopy functioning, climate change, competition, elevated CO, evolutionary response, game theory, genotypic response, naturally high CO, plant-plant interactions, Plantago asiatica L., plastic response, selection pressure",
author = "{Van Loon}, {Marloes P.} and Max Rietkerk and Dekker, {Stefan C.} and Kouki Hikosaka and Ueda, {Miki U.} and Anten, {Niels P.R.}",
year = "2016",
doi = "10.1093/aob/mcw064",
language = "English",
volume = "117",
pages = "1197--1207",
journal = "Annals of Botany",
issn = "0305-7364",
publisher = "Oxford University Press",
number = "7",

}

Plant-plant interactions mediate the plastic and genotypic response of Plantago asiatica to CO2 : An experiment with plant populations from naturally high CO2 areas. / Van Loon, Marloes P.; Rietkerk, Max; Dekker, Stefan C.; Hikosaka, Kouki; Ueda, Miki U.; Anten, Niels P.R.

In: Annals of Botany, Vol. 117, No. 7, 2016, p. 1197-1207.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Plant-plant interactions mediate the plastic and genotypic response of Plantago asiatica to CO2

T2 - An experiment with plant populations from naturally high CO2 areas

AU - Van Loon, Marloes P.

AU - Rietkerk, Max

AU - Dekker, Stefan C.

AU - Hikosaka, Kouki

AU - Ueda, Miki U.

AU - Anten, Niels P.R.

PY - 2016

Y1 - 2016

N2 - Background and Aims The rising atmospheric CO2 concentration ([CO2]) is a ubiquitous selective force that may strongly impact species distribution and vegetation functioning. Plant-plant interactions could mediate the trajectory of vegetation responses to elevated [CO2], because some plants may benefit more from [CO2] elevation than others. The relative contribution of plastic (within the plant's lifetime) and genotypic (over several generations) responses to elevated [CO2] on plant performance was investigated and how these patterns are modified by plant-plant interactions was analysed. Methods Plantago asiatica seeds originating from natural CO2 springs and from ambient [CO2] sites were grown in mono stands of each one of the two origins as well as mixtures of both origins. In total, 1944 plants were grown in [CO2]-controlled walk-in climate rooms, under a [CO2] of 270, 450 and 750 ppm. A model was used for upscaling from leaf to whole-plant photosynthesis and for quantifying the influence of plastic and genotypic responses. Key Results It was shown that changes in canopy photosynthesis, specific leaf area (SLA) and stomatal conductance in response to changes in growth [CO2] were mainly determined by plastic and not by genotypic responses. We further found that plants originating from high [CO2] habitats performed better in terms of whole-plant photosynthesis, biomass and leaf area, than those from ambient [CO2] habitats at elevated [CO2] only when both genotypes competed. Similarly, plants from ambient [CO2] habitats performed better at low [CO2], also only when both genotypes competed. No difference in performance was found in mono stands. Conclusion The results indicate that natural selection under increasing [CO2] will be mainly driven by competitive interactions. This supports the notion that plant-plant interactions have an important influence on future vegetation functioning and species distribution. Furthermore, plant performance was mainly driven by plastic and not by genotypic responses to changes in atmospheric [CO2].

AB - Background and Aims The rising atmospheric CO2 concentration ([CO2]) is a ubiquitous selective force that may strongly impact species distribution and vegetation functioning. Plant-plant interactions could mediate the trajectory of vegetation responses to elevated [CO2], because some plants may benefit more from [CO2] elevation than others. The relative contribution of plastic (within the plant's lifetime) and genotypic (over several generations) responses to elevated [CO2] on plant performance was investigated and how these patterns are modified by plant-plant interactions was analysed. Methods Plantago asiatica seeds originating from natural CO2 springs and from ambient [CO2] sites were grown in mono stands of each one of the two origins as well as mixtures of both origins. In total, 1944 plants were grown in [CO2]-controlled walk-in climate rooms, under a [CO2] of 270, 450 and 750 ppm. A model was used for upscaling from leaf to whole-plant photosynthesis and for quantifying the influence of plastic and genotypic responses. Key Results It was shown that changes in canopy photosynthesis, specific leaf area (SLA) and stomatal conductance in response to changes in growth [CO2] were mainly determined by plastic and not by genotypic responses. We further found that plants originating from high [CO2] habitats performed better in terms of whole-plant photosynthesis, biomass and leaf area, than those from ambient [CO2] habitats at elevated [CO2] only when both genotypes competed. Similarly, plants from ambient [CO2] habitats performed better at low [CO2], also only when both genotypes competed. No difference in performance was found in mono stands. Conclusion The results indicate that natural selection under increasing [CO2] will be mainly driven by competitive interactions. This supports the notion that plant-plant interactions have an important influence on future vegetation functioning and species distribution. Furthermore, plant performance was mainly driven by plastic and not by genotypic responses to changes in atmospheric [CO2].

KW - Canopy functioning

KW - climate change

KW - competition

KW - elevated CO

KW - evolutionary response

KW - game theory

KW - genotypic response

KW - naturally high CO

KW - plant-plant interactions

KW - Plantago asiatica L.

KW - plastic response

KW - selection pressure

U2 - 10.1093/aob/mcw064

DO - 10.1093/aob/mcw064

M3 - Article

VL - 117

SP - 1197

EP - 1207

JO - Annals of Botany

JF - Annals of Botany

SN - 0305-7364

IS - 7

ER -