Active and adaptive plasticity in a changing climate

Brooker, Rob W.; Brown, Lawrie; George, Timothy S.; Pakeman, Robin J.; Palmer, Sarah Jane; Ramsay, Luke; Schöb, Christian; Schurch, Nicholas J.; Wilkinson, Mike

doi:10.1016/j.tplants.2022.02.004

Cited by 55 publications

(48 citation statements)

References 85 publications

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“…Nevertheless, this plasticity might be relevant for crop production (Nicotra and Davidson, 2010). It is proposed that future breeding programs should emphasise on adaptive plasticity of crop species (Brooker et al, 2022; Milla et al, 2017) such as root plasticity (Schneider and Lynch, 2020) especially in more variable environments and due to climate change (Matesanz et al, 2010; Nicotra et al, 2010). Furthermore, higher plasticity might also be favourable in mixtures, particularly for the complementary use of resources (Zhu et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…For crop production, plasticity might be relevant (Nicotra and Davidson, 2010) especially for resource partitioning in mixtures (Zhu et al, 2015). It is proposed that future breeding programs should emphasise on adaptive plasticity of crop species (Brooker et al, 2022; Milla et al, 2017) such as root plasticity (Schneider and Lynch, 2020) especially in more variable environments and due to climate change (Matesanz et al, 2010; Nicotra et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

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Crops grown in mixtures show niche partitioning in spatial water uptake

Schmutz

Schöb

2022

Preprint

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More diverse plant communities generally produce more biomass than monocultures. This benefit of plant diversity is supposed to stem from resource complementarity of species in mixtures. Different plant species might use the resources spatially, temporally, or chemically in different ways. Along the same lines, for agricultural production crop mixtures outperform monocultures. Complementarity in water use of crop species in mixtures could result in higher yield. Therefore, complementarity in water use could be relevant for crop production in the future when water for agriculture becomes increasingly limited.Here we used the stable isotopes of water and a Bayesian model to investigate the spatial water uptake patterns of six different crops species and how these patterns change upon increasing crop diversity. In addition, we calculated niche overlaps of water uptake and compared them among the different diversity levels.The spatial water uptake pattern differed among crop species. The effect of crop diversity had a minor effect on water uptake but varied strongly depending on the crop species. Niche overlap in water uptake was highest in monocultures and decreased strongly in mixtures. Additionally, we show that increased competition intensity caused stronger changes in water uptake patterns.Synthesis. We found evidence for niche partitioning of water uptake in crop mixtures which might lead to a more efficient use of the limited resource water in intercropping systems. Intercropping can therefore increase and stabilise crop yields under forthcoming drier climatic conditions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Crops grown in mixtures show niche partitioning in spatial water uptake

Schmutz

Schöb

2022

Preprint

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“…Thus, range expansion should be less hindered in desert environments. However, low spatial-environmental variation (i.e., ΔE) may constrain adaptative flexibility (i.e., adaptability) in desert organisms because of the reduction in the G × E effect ( Brooker et al, 2022 ). Altitude differences increase environmental heterogeneity in deserts, enhancing the edge effect in desert plants.…”

Section: Discussionmentioning

confidence: 99%

Parallel adaptation prompted core-periphery divergence of Ammopiptanthus mongolicus

et al. 2022

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Range expansion requires peripheral populations to shift adaptive optima to breach range boundaries. Opportunities for range expansion can be assessed by investigating the associations of core-periphery environmental and genetic differences. This study investigates differences in the core-periphery adaptation of Ammopiptanthus mongolicus, a broad-leaved evergreen shrub species in a relatively homogeneous temperate Asian desert environment, to explore the environmental factors that limit the expansion of desert plants. Temperate deserts are characterized by severe drought, a large diurnal temperature range, and seasonality. Long-standing adaptation to the harsh desert environment may confine the genetic diversity of A. mongolicus, despite its distribution over a wide range of longitude, latitude, and altitude. Since range edges defined by climate niches may have different genetic responses to environmental extremes, we compared genome-wide polymorphisms between nine environmental core populations and ten fragmented peripheral populations to determine the “adaptive peripheral” populations. At least four adaptive peripheral populations had similar genetic-environmental association patterns. High elevations, summer drought, and winter cold were the three main determinants of converging these four adaptive peripheral populations. Elevation mainly caused similar local climates among different geographic regions. Altitudinal adaptation resulting from integrated environmental-genetic responses was a breakthrough in breaching niche boundaries. These peripheral populations are also located in relatively humid and warmer environments. Relaxation of the drought and cold constraints facilitated the genetic divergence of these peripheral populations from the core population’s adaptive legacy. We conclude that pleiotropic selection synchronized adaptative divergence to cold and drought vs. warm and humid environments between the core and peripheral populations. Such parallel adaptation of peripheral populations relies on selection under a background of abundant new variants derived from the core population’s standing genetic variation, i.e., integration of genetic surfing and local adaptation.

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“…Most biologists refer to this as plasticity. However, infrequently, researchers have openly used theory and models from animal behavioural ecology to construct ideas regarding plant plasticity (Brooker et al 2022;Jessup et al 2022;Mu et al 2022). They possess systems that allow them to encode and decode this information within their cells and tissues if they are to display adaptive plasticity in response to environmental signals.…”

Section: Introductionmentioning

confidence: 99%

Melatonin administration decrypts the inferential determinants of idiosyncratic foliar nastic movements

Babu

Bargunam

Roy

et al. 2022

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Plant nastic movements follow unique plant behavioural patterns that synchronize with external cues. Because the foliar nastic motions of Portulaca species are solely circadian, it would be fascinating to explore whether and how melatonin governs these movements. Analyzing morphological and anatomical traits in accordance with stomatal behaviour offers visual data regarding the plant species’ gnosophysiology and ecology. Morphometric and anatomical features provide clues and even prove the function of pleiotropic external stimuli. The current study seeks to understand how exogenous melatonin affects the foliar nastic movements in Portulaca oleracea. According to the findings, melatonin functioned as an intracellular hydrodynamic controller by navigating idioblast, crystal densities, and stomatal behaviour. Thus this hormone can be one of the auxiliary internal regulators of turgor pressure, thereby assisting P.oleracea’s characteristic foliar nastic movement that is circadian. The timepoint study at specific zeitgebers indicated that abiotic variables alter the endogenous melatonin concentration of P.oleracea. The idioblast and crystal torques and their angular momentum must be investigated further to calculate the hydraulic forces at work in the leaf lamina. This could decrypt melatonin’s pleiotropic action and the underlying mechanism of foliar nastic motions of other plant species.

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Active and adaptive plasticity in a changing climate

Cited by 55 publications

References 85 publications

Crops grown in mixtures show niche partitioning in spatial water uptake

Crops grown in mixtures show niche partitioning in spatial water uptake

Parallel adaptation prompted core-periphery divergence of Ammopiptanthus mongolicus

Melatonin administration decrypts the inferential determinants of idiosyncratic foliar nastic movements

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