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KMID : 0368419790220040107
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Journal of Plant Biology
1979 Volume.22 No. 4 p.107 ~ p.113
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Effects of Some Heavy Metals(Al, Cd, Hg and Pb) on ATP Content in Plant Leaves
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Sung Min-Woong
Yang Woon-Jin
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Abstract
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The present study was carried out to estimate the comparative effects of hydroponic heavy metals (Al, Cd, Hg, and Pb) on ATP content in plant leaves grown with Hoagland solution under green house condition. The two plants, kidneybean (Phaseolus vulgaris L.) and buckwheat (Fagopyrum esculentum Mo¨nch), showed similar inhibitory effect of heavy metals on ATP content in order of Hg, Cd, Pb, and Al. But the overall inhibitory effect was greater in kidneybean than in buckwheat.
The affinity of heavy metals, in vitro, toward the enzyme (luciferin-luciferase) is in order of Hg, Al, Cd, and Pb, similar to that toward ATP. The results showed that the inhibitory effect of heavy metals on ATP hydrolysis is mainly due to the coordination of heavy metals with enzyme than ATP.
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