ArticleAnnals of botany2021
Variation in climatic tolerance, but not stomatal traits, partially explains Pooideae grass species distributions.
Article in Annals of botany, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Some unique anatomical scaling relationships among genera in the grass subfamily Pooideae.AoB PLANTS · 2024Article
- Evolution of drought and frost responses in cool season grasses (Pooideae): was drought tolerance a precursor to frost tolerance?Journal of experimental botany · 2024Article
- Melica as an emerging model system for comparative studies in temperate Pooideae grasses.Annals of botany · 2023Article
- Extent of intraspecific trait variability in ecologically central and marginal populations of a dominant alpine plant across European mountains.Annals of botany · 2023Article
- Oligogalactolipid production during cold challenge is conserved in early diverging lineages.Journal of experimental botany · 2023Article
- Testing the chilling- before drought-tolerance hypothesis in Pooideae grasses.Molecular ecology · 2023Article
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6 authors.
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Abstract
BACKGROUND AND
aimsGrasses in subfamily Pooideae live in some of the world's harshest terrestrial environments, from frigid boreal zones to the arid windswept steppe. It is hypothesized that the climate distribution of species within this group is driven by differences in climatic tolerance, and that tolerance can be partially explained by variation in stomatal traits.
methodsWe determined the aridity index (AI) and minimum temperature of the coldest month (MTCM) for 22 diverse Pooideae accessions and one outgroup, and used comparative methods to assess predicted relationships for climate traits versus fitness traits, stomatal diffusive conductance to water (gw) and speed of stomatal closure following drought and/or cold. KEY
resultsResults demonstrate that AI and MTCM predict variation in survival/regreening following drought/cold, and gw under drought/cold is positively correlated with δ 13C-measured water use efficiency (WUE). However, the relationship between climate traits and fitness under drought/cold was not explained by gw or speed of stomatal closure.
conclusionsThese findings suggest that Pooideae distributions are at least partly determined by tolerance to aridity and above-freezing cold, but that variation in tolerance is not uniformly explained by variation in stomatal traits.
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