What question did this study set out to answer?

Determine how decadal to centennial increases in atmospheric carbon dioxide alter plant stomatal conductance and anatomical traits.

February 17, 2011Proceedings of the National Academy of SciencesOpen Access

Global CO ₂ rise leads to reduced maximum stomatal conductance in Florida vegetation

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Determine how decadal to centennial increases in atmospheric carbon dioxide alter plant stomatal conductance and anatomical traits.
Reconstructed maximum stomatal conductance (g(smax)), stomatal density (D), and pore size at maximal opening (a(max)) across nine common Florida plant species over the past 150 years.
Compared morphological and physiological adaptation strategies across angiosperms, conifers, and a fern.
Maximum stomatal conductance decreased by 34% (±12%) per 100 ppm increase in atmospheric CO2.
Angiosperms generally exhibited numerous small stomata and higher g(smax), whereas conifers and the fern exhibited fewer, larger stomata and lower g(smax).
Despite distinct anatomical strategies between angiosperms and conifers, both lineages demonstrated a coherent reduction in g(smax) in response to centennial CO2 rise.

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Implication

Historical reconstruction reveals a 34% drop in maximum stomatal conductance across plant species over 150 years, indicating widespread physiological adaptation to rising carbon dioxide.

Cite This Study

Lammertsma et al. (2011) studied this question.

synapsesocial.com/papers/6a11c548d4922d3d9bc90ffe https://doi.org/10.1073/pnas.1100371108

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Implication

Historical reconstruction reveals a 34% drop in maximum stomatal conductance across plant species over 150 years, indicating widespread physiological adaptation to rising carbon dioxide.

Global CO ₂ rise leads to reduced maximum stomatal conductance in Florida vegetation

Key Points

Discussion

Implication

Cite This Study

Global CO ₂ rise leads to reduced maximum stomatal conductance in Florida vegetation

Key Points

Discussion

Implication

Cite This Study

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