Response of tropical trees to sulphur dioxide stress and recovery
Authors:
- 1 November 1995
- journal article
- research article
- Published by Taylor & Francis in International Journal of Environmental Studies
- Vol. 49 (1) , 13-21
Abstract
Ethylene emission, ascorbic acid content, peroxidase and superoxide dismutase activity were measured in four tropical tree species. Six month old saplings of Morus alba Linn., Azadirachta indica A. Juss., Melia azadirach Linn, and Syzygium jambolina Lamk. were exposed to 0.5 ppm SO2 for four hours for six consequtive days. Recovery from SO2 stress was followed for twelve days after termination of the fumigation. SO2 induced foliar ethylene emission increased during fumigation but declined following termination of fumigation. SO2 fumigation enhanced the activities of superoxide dismutase and peroxidase in all four species. Their activities, however, declined on withdrawal of SO2 stress. Ascorbic acid content decreased due to SO2 stress but exhibited recovery on termination of fumigation. The response of the four plant species was widely different both during the fumigation period and during post‐fumigation recovery regime.Keywords
This publication has 18 references indexed in Scilit:
- The Basis for Different Sensitivities of Photosynthesis to SO2in Two Cultivars of PeaJournal of Experimental Botany, 1987
- Interspecific Variation in SO2 FluxPlant Physiology, 1985
- Response of peroxidase to low levels of SO2Environmental and Experimental Botany, 1985
- SO2‐induced ethylene evolution of forest tree foliage, and its potential use as stress‐indicatorEuropean Journal of Forest Pathology, 1981
- Sorption of O3, SO2, NO2 or their mixture by nine Poa pratensis cultivars of differing pollutant sensitivityAtmospheric Environment (1967), 1981
- Residence time of sulphite in SO2 ‘sensitive’ and ‘tolerant’ soybean cultivarsEnvironmental Pollution, 1979
- Effect of chlorine on stress ethylene productionEnvironmental and Experimental Botany, 1978
- The uptake and metabolism of 35SO2 in plants of differing sensitivity to sulphur dioxideEnvironmental Pollution, 1977
- Stress ethylene evolution: A measure of ozone effects on plantsAtmospheric Environment (1967), 1976
- Leaf age and air pollutant susceptibility: Uptake of ozone and sulfur dioxideEnvironmental Research, 1973