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Physiological responses of leaves of Phaseolus vulgaris to simulated acid rain

Journal Article · · Plant Physiol.; (United States)
OSTI ID:6291048
; ;
Relative rates of nutrient penetration, nutrient leaching, and cell permeability of simulated acid rain sensitive, first trifoliate leaves of Phaseolus vulgaris were examined. When leaves were exposed to various isotopic nutrients in buffered solutions TVSO4 penetrated faster but YWRb penetrated slower at pH 2.7 than at 5.7. Calcium, nitrate, and sulfate were preferentially leached by low pH while potassium, ammonium, and zinc were preferentially leached at pH 5.7 and 3.4 compared with 2.7 and 2.9. Isotope tests indicated that cells are more permeable to TVSO4 and TH2O but less permeable to YWRb at pH 2.7 compared with higher pH levels. The results suggest a diversity of leaf and cell permeability responses to various ions after exposure to simulated rain. A lower rate of nutrient leaching with more acidic simulated rain was correlated with a lower adaxial leaf resistance during development.
Research Organization:
Manhattan College, Bronx, NY
OSTI ID:
6291048
Journal Information:
Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 61:426; ISSN PLPHA
Country of Publication:
United States
Language:
English

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Related Subjects

551001 -- Physiological Systems-- Tracer Techniques
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACID RAIN
ALKALI METAL ISOTOPES
ALKALI METALS
ALKALINE EARTH METALS
AMMONIUM COMPOUNDS
ATMOSPHERIC PRECIPITATIONS
BACTERIA
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCIUM
DAYS LIVING RADIOISOTOPES
DISSOLUTION
ELEMENTS
EVEN-ODD NUCLEI
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
LEACHING
LEAVES
LEGUMINOSAE
LIGHT NUCLEI
METALS
MICROORGANISMS
MINUTES LIVING RADIOISOTOPES
NITRATES
NITROGEN COMPOUNDS
NUCLEI
NUTRIENTS
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
PERMEABILITY
PH VALUE
PHASEOLUS
PLANT CELLS
PLANTS
POTASSIUM
RADIOISOTOPES
RAIN
RHIZOBIUM
RUBIDIUM 86
RUBIDIUM ISOTOPES
SENSITIVITY
SEPARATION PROCESSES
SULFATES
SULFUR 35
SULFUR COMPOUNDS
SULFUR ISOTOPES
TOXICITY
TRACER TECHNIQUES
ZINC