ArticleAnnals of botany2010
Mechanosensing of stem bending and its interspecific variability in five neotropical rainforest species.
Article in Annals of botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Review
- Unidirectional versus bidirectional brushing: Simulating wind influence onQuantitative plant biology · 2022Article
- Internode elongation and strobili production of Humulus lupulus cultivars in response to local strain sensing.Scientific reports · 2021Article
- The Effect of Mechanical Stress on Plant Susceptibility to Pests: A Mini Opinion Review.Plants (Basel, Switzerland) · 2020Review
- Mechanosensitive control of plant growth: bearing the load, sensing, transducing, and responding.Frontiers in plant science · 2015Review
- Tree shoot bending generates hydraulic pressure pulses: a new long-distance signal?Journal of experimental botany · 2014Article
- Highly local environmental variability promotes intrapopulation divergence of quantitative traits: an example from tropical rain forest trees.Annals of botany · 2013Article
- Effect of mechanical perturbation on the biomechanics, primary growth and secondary tissue development of inflorescence stems of Arabidopsis thaliana.Annals of botany · 2011Article
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5 authors.
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Abstract
BACKGROUND AND
aimsIn rain forests, sapling survival is highly dependent on the regulation of trunk slenderness (height/diameter ratio): shade-intolerant species have to grow in height as fast as possible to reach the canopy but also have to withstand mechanical loadings (wind and their own weight) to avoid buckling. Recent studies suggest that mechanosensing is essential to control tree dimensions and stability-related morphogenesis. Differences in species slenderness have been observed among rainforest trees; the present study thus investigates whether species with different slenderness and growth habits exhibit differences in mechanosensitivity.
methodsRecent studies have led to a model of mechanosensing (sum-of-strains model) that predicts a quantitative relationship between the applied sum of longitudinal strains and the plant's responses in the case of a single bending. Saplings of five different neotropical species (Eperua falcata, E. grandiflora, Tachigali melinonii, Symphonia globulifera and Bauhinia guianensis) were subjected to a regimen of controlled mechanical loading phases (bending) alternating with still phases over a period of 2 months. Mechanical loading was controlled in terms of strains and the five species were subjected to the same range of sum of strains. The application of the sum-of-strain model led to a dose-response curve for each species. Dose-response curves were then compared between tested species. KEY
resultsThe model of mechanosensing (sum-of-strain model) applied in the case of multiple bending as long as the bending frequency was low. A comparison of dose-response curves for each species demonstrated differences in the stimulus threshold, suggesting two groups of responses among the species. Interestingly, the liana species B. guianensis exhibited a higher threshold than other Leguminosae species tested.
conclusionsThis study provides a conceptual framework to study variability in plant mechanosensing and demonstrated interspecific variability in mechanosensing.
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