ALUMINIUM INDUCED TOXICITY AND GROWTH RESPONSES OF CYANOBACTERIAK. KAPOOR AND LEENA ARORA
Aluminium is one of the abundant elements found on the earth and is second most important metal used in industrial societies. Toxic effect of Al on cyanobacteria were studied using growth parameters, viz., absorbance, total chl a, carbohydrate, protein, amino acid, pH, conductivity measurements a5 well as heterocyst frequency and sporulation under laboratory conditions- Activity of ascorbic acid oxidase, urease of the test organisms in control and metal containing medium were studied. The results indicate growth retarding effect of Al on on cyanohacteria including cell morphogenesis, heterocyst frequency and sportdatiort, on two cyanobacteria Am/buena (Ioliiiltini and Nostoc museorurn.
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