Abolition of Heavy Metal Toxicity on Kirchneriella lunaris (Chlorophyta) by Calcium |
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| Authors: | Issa A A; Abdel-Basset R; Adam M S |
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| Institution: | Botany Department, Faculty of Science, Assiut University, Assiut, Egypt |
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| Abstract: | The green alga Kirchneriella lunaris was incubated with variousheavy metals (Cd2+, Co2+, Mn2+, Ni2+) in presence/absence ofcalcium (Ca2+). The uptake of heavy metal was affected by Ca2+.Growth rate was inhibited by all heavy metals applied. In allCa2+-containing cultures Kirchneriella exhibited higher ratesof growth than those containing heavy metal alone. Photosynthesis/respirationratio of K. lunaris cells seems to be the determinant in thiswork. Ca2+ variably abolished the effects of the heavy metalsstudied. Maximal positive effect of Ca2+ was found with Cd2+while with Ni2+ it was negligible.Copyright 1995, 1999 AcademicPress Cadmium, cobalt, manganese, nickel, calcium, heavy metals, growth, photosynthesis, Kirchneriella lunaris |
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