+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Water Stress Reduces Ozone Injury via a Stomatal Mechanism

Water Stress Reduces Ozone Injury via a Stomatal Mechanism

Plant Physiology 77(4): 944-947

Various studies have shown that water-stressed plants are more tolerant of ozone exposures than are unstressed plants. Two probable explanations for this tolerance are (a) stomatal closure which reduces ozone uptake and (b) biochemical or anatomical changes within the leaves. Phaseolus vulgaris cv Pinto bean plants were established and transferred to membrane systems which controlled the osmotic potential around the roots at -35 or -80 kilopascals for 5 days prior to ozone treatment (0 or 1.0 microliters per liter for 2 hours). Both water-stressed and unstressed plants were sprayed with various concentrations of abscisic acid to close the stomata or with fusicoccin to induce stomata opening. The abaxial stomatal resistances of primary and trifoliate leaves were measured just prior to ozone exposure. Plant response to ozone was determined by stress ethylene production and chlorophyll loss. Both water stress and abscisic acid induced stomatal closure and reduced ozone injury. In water-stressed plants, fusicoccin induced stomatal opening and those plants were as sensitive to ozone as were the non-water-stressed plants. These data suggest that water stress protects plants from ozone injury mainly through its influence on stomatal aperture rather than through biochemical or anatomical changes.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 050963075

Download citation: RISBibTeXText

PMID: 16664168

DOI: 10.1104/pp.77.4.944

Related references

Water stress reduces ozone injury via a stomatal mechanism. Plant Physiology 72(Suppl. 1): 91, 1983

Both ozone exposure and soil water stress are able to induce stomatal sluggishness. Environmental and Experimental Botany 88: 19-23, 2013

Interacting effects of ozone and water stress on the stomatal resistance of beech (Fagus sylvatica L.). New Phytologist 123(2): 351-358, 1993

Physiological, stomatal and ultrastructural ozone responses in birch (Betula pendula Roth.) are modified by water stress. Plant, Cell and Environment 21(7): 671-684, 1998

Effects of treatment with low ozone concentrations on stomatal behaviour, growth, and susceptibility to acute ozone injury. Dissertation Abstracts International, B 40(11): 5095, 1980

Influencing Mechanism and Spatio-temporal Pattern of Stomatal Ozone Flux of Winter Wheat Under Ozone Pollution. Huan Jing Ke Xue= Huanjing Kexue 38(1): 412-422, 2017

Stomatal response and leaf injury of pisum sativum cultivar alsweet with sulfur di oxide and ozone exposures 2. influence of moisture stress and time of exposure. Plant Physiology 67(3): 545-549, 1981

An epidemiological assessment of stomatal ozone flux-based critical levels for visible ozone injury in Southern European forests. Science of the Total Environment 541: 729-741, 2016

AMP-activated protein kinase deficiency reduces ozone-induced lung injury and oxidative stress in mice. Respiratory Research 12: 64, 2011

Validation of the stomatal flux approach for the assessment of ozone visible injury in young forest trees. Results from the TOP (transboundary ozone pollution) experiment at Curno, Italy. Environmental Pollution 157(5): 1497-1505, 2009

Ozone-induced foliar damage and release of stress volatiles is highly dependent on stomatal openness and priming by low-level ozone exposure in Phaseolus vulgaris. Plant Cell and Environment 40(9): 1984-2003, 2017

Stomatal resistance and the ratio of intercellular to ambient carbon dioxide in container-grown yellow-poplar seedlings exposed to chronic ozone fumigation and water stress. Environmental & Experimental Botany 35(2): 161-165, 1995

Stomatal and non-stomatal limitations of photosynthesis under water stress in field-grown grapevines. Australian Journal of Plant Physiology 26(5): 421-433, 1999

Stomatal and non-stomatal control of photosynthesis in poplar genotypes in response to water stress. Journal of Beijing Forestry University, English edition 5(2): 63-72, 1996

Non uniform stomatal closure induced by water stress causes putative non stomatal inhibition of photosynthesis. New Phytologist 110(4): 503-510, 1988