Response of stomatal numbers to CO2 and humidity:: control by transpiration rate and abscisic acid

被引:128
作者
Lake, J. A. [1 ]
Woodward, F. I. [1 ]
机构
[1] Univ Sheffield, Dept Anim & Plant Sci, Sheffield S10 2TN, S Yorkshire, England
关键词
abscisic acid; CO2; mechanism; stomatal aperture; stomatal density; transpiration;
D O I
10.1111/j.1469-8137.2008.02485.x
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The observation that stomatal density (number mm(-2)) on herbarium leaves had decreased over the last century represents clear evidence that plants have responded to anthropogenic increases in CO2 concentration. The mechanism of the response has proved elusive but here it is shown that density responses to both CO2 concentration and humidity are correlated with changes in whole-plant transpiration and leaf abscisic acid (ABA) concentration. The transpiration rate of a range of accessions of Arabidopsis thaliana was manipulated by changing CO2 concentration, humidity and by exogenous application of ABA. Stomatal density increased with transpiration and leaf ABA concentration. A common property of signal transduction systems is that they rapidly lose their ability to respond to the co-associated stimulus. Pathways of water movement within the plant are connected and so variations in supply and demand can be signalled throughout the plant directly, modifying stomatal aperture of mature leaves and stomatal density of developing leaves. Furthermore, the system identified here does not conform to the loss of ability to respond. A putative mechanism is proposed for the control of stomatal density by transpiration rate and leaf ABA concentration.
引用
收藏
页码:397 / 404
页数:8
相关论文
共 38 条
[1]   Stomatal development and pattern controlled by a MAPKK kinase [J].
Bergmann, DC ;
Lukowitz, W ;
Somerville, CR .
SCIENCE, 2004, 304 (5676) :1494-1497
[2]   GAS-EXCHANGE, STOMATAL BEHAVIOR, AND DELTA-C-13 VALUES OF THE FLACCA TOMATO MUTANT IN RELATION TO ABSCISIC-ACID [J].
BRADFORD, KJ ;
SHARKEY, TD ;
FARQUHAR, GD .
PLANT PHYSIOLOGY, 1983, 72 (01) :245-250
[3]   Unraveling the effects of plant hydraulics on stomatal closure during water stress in walnut [J].
Cochard, H ;
Coll, L ;
Le Roux, X ;
Améglio, T .
PLANT PHYSIOLOGY, 2002, 128 (01) :282-290
[4]   The effect of exogenous abscisic acid on stomatal development, stomatal mechanics, and leaf gas exchange in Tradescantia virginiana [J].
Franks, PJ ;
Farquhar, GD .
PLANT PHYSIOLOGY, 2001, 125 (02) :935-942
[5]   Detection of a direct carbon dioxide effect in continental river runoff records [J].
Gedney, N ;
Cox, PM ;
Betts, RA ;
Boucher, O ;
Huntingford, C ;
Stott, PA .
NATURE, 2006, 439 (7078) :835-838
[6]   Oriented asymmetric divisions that generate the stomatal spacing pattern in Arabidopsis are disrupted by the too many mouths mutation [J].
Geisler, M ;
Nadeau, J ;
Sack, FD .
PLANT CELL, 2000, 12 (11) :2075-2086
[7]   The HIC signalling pathway links CO2 perception to stomatal development [J].
Gray, JE ;
Holroyd, GH ;
van der Lee, FM ;
Bahrami, AR ;
Sijmons, PC ;
Woodward, FI ;
Schuch, W ;
Heterington, AM .
NATURE, 2000, 408 (6813) :713-716
[8]   EXPLOITING THE TRIPLE RESPONSE OF ARABIDOPSIS TO IDENTIFY ETHYLENE-RELATED MUTANTS [J].
GUZMAN, P ;
ECKER, JR .
PLANT CELL, 1990, 2 (06) :513-523
[9]   General relations of stomatal responses to xylem sap abscisic acid under stress in the rooting zone - A global perspective [J].
Heilmeier, Hermann ;
Schulze, Ernst-Detlef ;
Fan, Jiang ;
Hartung, Wolfram .
FLORA, 2007, 202 (08) :624-636
[10]   The role of stomata in sensing and driving environmental change [J].
Hetherington, AM ;
Woodward, FI .
NATURE, 2003, 424 (6951) :901-908