Response of Bush Bean Exposed to Acid Mist

Hindawi, I.J.; Rea, James A.; Griffis, William L.

doi:10.1002/j.1537-2197.1980.tb07638.x

Cited by 28 publications

(13 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, as the number of daily rainfall exposures increases, the changes in rates of leaching and accumulation of specific nutrients become more striking, and significant alterations in resistance to gas exchange become evident. The results of this study complement and extend those of previous experiments on the effects of simulated acidic rain on plant foliage (Wood and Bormann, 1975;Fairfax and Lepp, 1975;Ferenbaugh, 1976;Hindawi et al, 1977). Hindawi, Rea and Griflfis (1980) demonstrated lower contents of nitrogen, calcium, magnesium, and phosphorus in foliage of Phaseolus vulgaris L. exposed to simulated acid mist.…”

Section: Discussionsupporting

confidence: 79%

RESPONSES OF LEAVES OF PHASEOLUS VULGARIS L. TO SIMULATED ACIDIC RAIN

1981

View full text Add to dashboard Cite

SUMMARYRelative rates of nutrient penetration, nutrient leaching, and cell permeability of first trifoliate leaves oi Phaseolus vulgaris L. cv. Univ. of Idaho 111 were examined after exposure to simulated acidic rain. In buffer solutions ^^804^" penetrated leaves faster at pH 27 than at 57. In contrast, •^Rb^ pervaded fastest at pH 57, and ^HgO entered foliage at similar rates at all pH levels tested. When plants were exposed to simulated rains of various pH levels, calcium, nitrate and sulphate were preferentially leached from whole leaves by rainfalls of low pH, whereas potassium and chloride leached more at pH 5 7 and 34 compared with 2 7 and 29. Isotope tests indicated that cells within leaves were more permeable to ^^804^"^ and ^HjO and less permeable to ^*Rb+ at pH 2 7 than at higher pH levels. These results suggest a wide diversity of leaf and cell permeability responses to various ions after exposure to acidic rain. In general, an increased rate of nutrient leaching at more acidic levels was correlated with a lower adaxial leaf resistance during leaf development.

show abstract

Section: Discussionsupporting

confidence: 79%

RESPONSES OF LEAVES OF PHASEOLUS VULGARIS L. TO SIMULATED ACIDIC RAIN

1981

View full text Add to dashboard Cite

show abstract

“…Analysis of leaf element concentrations before and after exposure to acidic rains and mists has shown that acid-induced ion effluxes can reduce foliar P, K, Ca, and Mg (Blanpied, 1979;Hindawi, Rea & Griffis, 1980;Jacobson et al, 1989). Detectable depletion is more likely in plants of low nutritional status than in plants with adequate nutrition (Leonardi & Fluckiger, 1989;Turner & Tingey, 1990).…”

Section: Evidence For Depletion Of Foliar Elementsmentioning

confidence: 99%

Influence of pH and plant nutrient status on ion fluxes between tomato plants and simulated acid mists

Foster

1990

New Phytologist

View full text Add to dashboard Cite

SUMMARYDiffusion along concentration gradients, ion exchange, active uptake, and physical damage are possible mechanisms causing fluxes of ions between plant tissues and acidified moisture on plant surfaces. The temporal patterns of ion fluxes during individual wetting events should vary in a predictable manner in relation to moisture pH, plant nutritional status, and the operational mechanism. Tomatoes {Lycopersicon esculentum Mill.) were grown hydroponically at relative nutrient addition rates (/?J of 7, 12, and 15% per day. At similar growth stages, the plants were exposed to HCl-acidified mists of pH 2-5, 4-0, or 5-6 for 4 h, or left unmisted as controls. Whole-plant throughfall was analysed for pH and ion concentrations after 15, 30, 60, 120, and 240 min. Surface chemical contamination was minimized by pre-rinsing with deionized water. Except for H+ during the first 15-30 min, all ions showed efflux for the duration of the mistings. Effluxes were low (< 150/*equiv m""^ h"^), time-invariant, and unrelated to R^ at mist pH of 4-0 and 5-6. At pH 2-5, effluxes of K+, Mg2+, NOg", and PO/-increased over time, while Ca^+ efflux increased during the first hour, then remained constant. Maximum efflux (105 to 730 /*equiv m'^ h^^) mostly occurred at pH 2-5 and R^ = 17 % d'S increasing in the order NH/ = SO/" < NOf < PO/~ < Ca^+ = Mg2+ < K+ < H+. These results suggested that although ion diffusion and ion exchange contributed to observed effluxes, an additional mechanism, temporally accumulating physical damage to cuticles and cell membranes below a threshold pH between 4 0 and 2-5, was involved. Foliar concentrations of K, Ca, and Mg did not differ significantly among treatments, but ion effluxes into pH 2-5 mists removed 1-13 % of the wholeplant element contents, with the largest removal for Ca.

show abstract

“…Reduced levels of pigments due to acidic wet deposition have been frequently reported (e.g. Ferenbaugh, 1976;Hindawi, Rae & Giffis, 1980;Jakhola et al, 1980) but processes such as photosynthesis and respiration have been shown to be positively affected only at unrealistically low pH levels around pH 2 (F"erenbaugh, 1976).…”

Section: Introductionmentioning

confidence: 99%

Cellular Readjustment of Barley Seedlings to Simulated Acid Rain

Wolfenden

Wellburn

1986

New Phytologist

View full text Add to dashboard Cite

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.

show abstract

Response of Bush Bean Exposed to Acid Mist

Cited by 28 publications

References 15 publications

RESPONSES OF LEAVES OF PHASEOLUS VULGARIS L. TO SIMULATED ACIDIC RAIN

RESPONSES OF LEAVES OF PHASEOLUS VULGARIS L. TO SIMULATED ACIDIC RAIN

Influence of pH and plant nutrient status on ion fluxes between tomato plants and simulated acid mists

Cellular Readjustment of Barley Seedlings to Simulated Acid Rain

Contact Info

Product

Resources

About