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Acta Virologica Vol.49, p.23-28, 2005 |
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Title: GROWTH OF CYANOPHAGE N-1 UNDER THE INFLUENCE OF HEAVY METAL IONS | ||
Author: T.A. SARMA, SUKHRISH P. KAUR | ||
Abstract: The growth of cyanophage N-1 in the cyanobacterium Nostoc muscorum under the influence of heavy metal ions, namely Co2+, Cr6+, Cu2+, Mn2+ and Ni2+ has been studied. One-step growth experiments revealed that heavy metal ions extended the latent period by 1–2 hrs with a concomitant decrease in the phage burst size. The latter was reduced in the order Cu2+/Mn2+, Ni2+, Co2+ and Cr6+. The treatment of the phageinfected bacteria with heavy metal ions did not induce mutations affecting either the phage plaque morphology or burst size. The final phage titer after such a treatments was lowest with Co2+, Cu2+ and Cr6+. The inhibition of the phage growth under the influence of heavy metal ions is discussed in context with the interaction of cyanophage N-1 with the photosynthetic reactions in the host bacteria. |
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Keywords: cyanophage N-1; heavy metal ions; growth; Nostoc muscorum; photosynthesis | ||
Year: 2005, Volume: 49, Issue: | Page From: 23, Page To: 28 | |
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