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

Authors
Rachmilevitch, S Reuveni, J Pearcy, RW Gale, J
Citation
S. Rachmilevitch et al., A high level of atmospheric oxygen, as occurred toward the end of the Cretaceous period, increases leaf diffusion conductance, J EXP BOT, 50(335), 1999, pp. 869-872
Citations number
15
Categorie Soggetti
Plant Sciences","Animal & Plant Sciences
Journal title
JOURNAL OF EXPERIMENTAL BOTANY
ISSN journal
00220957 → ACNP
Volume
50
Issue
335
Year of publication
1999
Pages
869 - 872
Database
ISI
SICI code
0022-0957(199906)50:335<869:AHLOAO>2.0.ZU;2-B
Abstract
Leaf diffusion conductance much increased when Xanthium strumarium (C-3), A triplex prostata (C-3) and Flaveria pringlei (C-3), F. sonorensis (C-3/C-4) , F. floridana (C-3/C-4), and F. trinervia (C-4) plants were grown under re latively high (28 kPa) ambient oxygen. This phenomenon, which increases sen sitivity to water stress, could have adversely affected vegetation during t he late Cretaceous, high O-2 episode.