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

Research output: Contribution to journalArticlepeer-review

5 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 languageEnglish
Pages (from-to)869-872
Number of pages4
JournalJournal of Experimental Botany
Volume50
Issue number335
DOIs
StatePublished - 1 Jan 1999
Externally publishedYes

Keywords

  • Cretaceous
  • Oxygen
  • Palaeo-atmosphere
  • Stomata

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