Jump to main content
US EPA
United States Environmental Protection Agency
Search
Search
Main menu
Environmental Topics
Laws & Regulations
About EPA
Health & Environmental Research Online (HERO)
Contact Us
Print
Feedback
Export to File
Search:
This record has one attached file:
Add More Files
Attach File(s):
Display Name for File*:
Save
Citation
Tags
HERO ID
4309213
Reference Type
Journal Article
Title
Unique responsiveness of angiosperm stomata to elevated CO2 explained by calcium signalling
Author(s)
Brodribb, TJ; Mcadam, SA
Year
2013
Is Peer Reviewed?
1
Journal
PLoS ONE
EISSN:
1932-6203
Volume
8
Issue
11
Page Numbers
e82057
Language
English
PMID
24278470
DOI
10.1371/journal.pone.0082057
Web of Science Id
WOS:000327313100166
Abstract
Angiosperm and conifer tree species respond differently when exposed to elevated CO2, with angiosperms found to dynamically reduce water loss while conifers appear insensitive. Such distinct responses are likely to affect competition between these tree groups as atmospheric CO2 concentration rises. Seeking the mechanism behind this globally important phenomenon we targeted the Ca(2+)-dependent signalling pathway, a mediator of stomatal closure in response to elevated CO2, as a possible explanation for the differentiation of stomatal behaviours. Sampling across the diversity of vascular plants including lycophytes, ferns, gymnosperms and angiosperms we show that only angiosperms possess the stomatal behaviour and prerequisite genetic coding, linked to Ca(2+)-dependent stomatal signalling. We conclude that the evolution of Ca(2+)-dependent stomatal signalling gives angiosperms adaptive benefits in terms of highly efficient water use, but that stomatal sensitivity to high CO2 may penalise angiosperm productivity relative to other plant groups in the current era of soaring atmospheric CO2.
Tags
NAAQS
•
ISA-Ozone (2020 Final Project Page)
Literature Search Results
Literature Search - Included
Citation Mapping
Ecology
Title-Abstract Screening (SWIFT-AS) - Excluded
Manually Excluded
Home
Learn about HERO
Using HERO
Search HERO
Projects in HERO
Risk Assessment
Transparency & Integrity