A high level of atmospheric oxygen, as occurred toward the end of the Cretaceous period, increases leaf diffusion conductance

Shimon Rachmilevitch; Joseph Reuveni; Robert W. Pearcy; Joseph Gale

doi:10.1093/jxb/50.335.869

A high level of atmospheric oxygen, as occurred toward the end of the Cretaceous period, increases leaf diffusion conductance

Shimon Rachmilevitch, Joseph Reuveni, Robert W. Pearcy, Joseph Gale^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Leaf diffusion conductance much increased when Xanthium strumarium (C₃), Atriplex prostata (C₃) and Flaveria pringlei (C₃), F. sonorensis (C₃/C₄), F. floridana (C₃/C₄), and F. trinervia (C₄) plants were grown under relatively high (28 kPa) ambient oxygen. This phenomenon, which increases sensitivity to water stress, could have adversely affected vegetation during the late Cretaceous, high O₂ episode.

Original language	English
Pages (from-to)	869-872
Number of pages	4
Journal	Journal of Experimental Botany
Volume	50
Issue number	335
DOIs	https://doi.org/10.1093/jxb/50.335.869
State	Published - Jun 1999

Keywords

Cretaceous
Oxygen
Palaeo-atmosphere
Stomata

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abstract = "Leaf diffusion conductance much increased when Xanthium strumarium (C3), Atriplex prostata (C3) and Flaveria pringlei (C3), F. sonorensis (C3/C4), F. floridana (C3/C4), and F. trinervia (C4) plants were grown under relatively high (28 kPa) ambient oxygen. This phenomenon, which increases sensitivity to water stress, could have adversely affected vegetation during the late Cretaceous, high O2 episode.",

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AU - Gale, Joseph

PY - 1999/6

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AB - Leaf diffusion conductance much increased when Xanthium strumarium (C3), Atriplex prostata (C3) and Flaveria pringlei (C3), F. sonorensis (C3/C4), F. floridana (C3/C4), and F. trinervia (C4) plants were grown under relatively high (28 kPa) ambient oxygen. This phenomenon, which increases sensitivity to water stress, could have adversely affected vegetation during the late Cretaceous, high O2 episode.

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KW - Oxygen

KW - Palaeo-atmosphere

KW - Stomata

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JO - Journal of Experimental Botany

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A high level of atmospheric oxygen, as occurred toward the end of the Cretaceous period, increases leaf diffusion conductance

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