Modeling the response of greenhouse-grown radish plants to acidic rain

Irving, Patricia M.

doi:10.1016/0098-8472(85)90030-9

Cited by 40 publications

(17 citation statements)

References 8 publications

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“…Exposures of plants to simulated rain of higher acidity (< pH 3-4) have caused reductions in growth (Wood & Bormann, 1974;Ferenbaugh, 1976;Evans & Lewin, 1980;Harcourt & Farrar, 1980;Irving, 1985) and these lower pH levels are often the cause of leaf injury (e.g. Paparozzi & Tukey, 1983).…”

Section: Introductionmentioning

confidence: 99%

Cellular Readjustment of Barley Seedlings to Simulated Acid Rain

Wolfenden

Wellburn

1986

New Phytologist

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SUMMARYNo changes in buffer capacity at any range of pH were detected in either the shoots or roots of 9 d old hydroponically-grown harley seedlings which had heen grown in dilute acid (pH 3 or 4) for the last 4 days of growth. Similar lack of change in buffer capacity was observed in barley which had been intermittently sprayed with acidic mists (pH 3 or 4) as compared to those sprayed with pH 5-6 media for the last 2 or 4 d of growth. Acidic treatments, especially growth in acidic media or 2 d of occasional spraying, caused significant increases in the levels of plastidic sulphate, as measured hy high performance ion chromatography but no changes in the plastidic concentrations of other anions occurred. High field ^'P-NMR spectroscopy of barley shoot tissue showed that the vacuolar pH levels (as revealed by the pH-dependent orthophosphate signals) of those tissues which had been sprayed with acidic solutions (pH 3 or 4) for 2 d were significantly lower than in those similarly sprayed with pH 5-6 solutions. This may mean that ATP-dependent H+-pumps in the tonoplast are involved in cellular readjustments to the imposed acidity. No growth reductions or visible injury were detected over these short term treatments but these changes of vacuolar pH and plastidic sulphate content may indicate that homeostatic adjustments have an energetic cost which may ultimately account for reductions in plant growth attributed elsewhere to acidic precipitation.

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Section: Introductionmentioning

confidence: 99%

Cellular Readjustment of Barley Seedlings to Simulated Acid Rain

Wolfenden

Wellburn

1986

New Phytologist

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“…After filling the rain simulant storage tanks with deionized water, the rain simulant solutions were mixed to approximate the chemistry of an average summer rain event adjusted to pH 5.2, 4.2, or 3.2 with sulfuric and nitric acid. 21 Stock solutions were mixed to 500X strength for each rain simulant pH. The ionic constituents of each stock solution were identical except for the added sulfate, nitrate, and hydrogen ions.…”

Section: Simulant Dispensing Systemmentioning

confidence: 99%

Design and Performance of an Exposure System for Measuring the Response of Crops to Acid Rain and Gaseous Pollutants in the Field

Johnston

Shriner

Abner

1986

Journal of the Air Pollution Control Association

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“…Both simple and complex dose-response relationships between acidity and growth or yield have been reported (Evans et al, 1982b;Jacobson & Troiano, 1983;Irving, 1985). Much of this research has focussed on vegetative tissues (Jacobsen & van Leuken, 1977;Harcourt & Earrar, 1980;Evans, Gmur & Mancini, 1982a;Troiano, Heller & Jacobson, 1982;Rebbeck & Brennan, 1984).…”

Section: Introductionmentioning

confidence: 99%

THE INFLUENCE OF SIMULATED ACIDIC RAIN ON VEGETATIVE AND REPRODUCTIVE TISSUES OF CUCUMBER (CUCUMIS SATIVUS L.)

et al. 1987

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SUMMARYCucumis sativus L. plants were grown in the greenhouse and exposed 21 times to simulated acidic rain over a period of 6 weeks to compare the responses of vegetative and reproductive tissues. Chemical composition and temporal characteristics of rain were patterned according to rainfall in the growing season in the eastern US. Flowers were hand-pollinated to promote fruit set. Foliar symptoms were the most sensitive response of all the variables measured. Necrosis was visible after exposures to simulated acidic rain at pH 2-6, 30, and 3-4 but not at 3*8, 4-2, 46, 5"0, or 5*4. Despite these injury symptoms, there were no significant reductions in most measures of vegetative or reproductive tissues, even at pH 2-6. When durations of exposure were increased from 80 to 160 min, there was an increase in the severity of foliar injury, a significant reduction in dry mass of stems, numbers of female flowers produced and dry mass of flowers and immature fruit. However, there still were no significant reductions in numbers or weight of fruit, even though the plants were exposed to as much as a 20-fold greater deposition of acidity than ambient rainfall (average pH 4-0 to 4-3) in the north-eastern US. Evidently, cucumber plants have the capacity to recover and compensate for initial decreases in foliage and flower production, and the reproductive stage is not particularly susceptible to simulated acidic rain. These findings support previous results indicating that considerable increases in acidity of ambient rain would have to occur before the yield of crops would be measurably reduced.

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Modeling the response of greenhouse-grown radish plants to acidic rain

Cited by 40 publications

References 8 publications

Cellular Readjustment of Barley Seedlings to Simulated Acid Rain

Cellular Readjustment of Barley Seedlings to Simulated Acid Rain

Design and Performance of an Exposure System for Measuring the Response of Crops to Acid Rain and Gaseous Pollutants in the Field

THE INFLUENCE OF SIMULATED ACIDIC RAIN ON VEGETATIVE AND REPRODUCTIVE TISSUES OF CUCUMBER (CUCUMIS SATIVUS L.)

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