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Chapter 95 : Antimicrobial Activity of Some Lichen Extracts against

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Antimicrobial Activity of Some Lichen Extracts against , Page 1 of 2

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Abstract:

Humans have frequently used plants to treat common infectious diseases, and some of these traditional medicines are still part of the habitual treatment of various maladies. This chapter presents a study that investigated antibacterial activity of some lichens against serogroup (sg) 1 and sg 2 to 14 strains. The inhibition effects of lichen aqueous extract (AE) and ethanolic extract (EE) against sg 1 ATCC 33152 (A), sg 1 (C, E), and sg 2 to 14 (B, D) were performed according to the agar well diffusion method by using buffered charcoal yeast extract agar. It was found that the antimicrobial activity of the AE was greater than 70% of the activity of EE. Lichens now constitute important sources for prospecting for new bioactive molecules, either by the direct use of their secondary metabolites or by employing their biyosynthetic or semisynthetically derived compounds, which are produced with the aim of attaining higher effectiveness, improved absorption, or even decreased toxicity. The establishment disinfection procedure may not prevent the occurrence of in the water system. It is known that Legionnaires’ disease frequently appears because of contaminated water systems and it can be treated by antibiotics.

Citation: Zeybek Z, Doğruöz N, Çotuk A, Karagöz A, Aslan A. 2006. Antimicrobial Activity of Some Lichen Extracts against , p 407-410. In Cianciotto N, Kwaik Y, Edelstein P, Fields B, Geary D, Harrison T, Joseph C, Ratcliff R, Stout J, Swanson M (ed), . ASM Press, Washington, DC. doi: 10.1128/9781555815660.ch95

Key Concept Ranking

Legionella pneumophila
0.6
Escherichia coli
0.5625
0.6
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Figures

Image of FIGURE 1
FIGURE 1

Antimicrobial activity of aqueus extract of lichens. (A) Standard sg 1 (ATCC 33152); (B and D) environmental sg 2 to 14; (C and E) environmental sg 1.

Citation: Zeybek Z, Doğruöz N, Çotuk A, Karagöz A, Aslan A. 2006. Antimicrobial Activity of Some Lichen Extracts against , p 407-410. In Cianciotto N, Kwaik Y, Edelstein P, Fields B, Geary D, Harrison T, Joseph C, Ratcliff R, Stout J, Swanson M (ed), . ASM Press, Washington, DC. doi: 10.1128/9781555815660.ch95
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Image of FIGURE 2
FIGURE 2

Antimicrobial activity of 70% ethanolic extract of lichens. (A) Standard sg 1 (ATCC 33152); (B and D) environmental sg 2 to 14; (C and E) environmental sg 1.

Citation: Zeybek Z, Doğruöz N, Çotuk A, Karagöz A, Aslan A. 2006. Antimicrobial Activity of Some Lichen Extracts against , p 407-410. In Cianciotto N, Kwaik Y, Edelstein P, Fields B, Geary D, Harrison T, Joseph C, Ratcliff R, Stout J, Swanson M (ed), . ASM Press, Washington, DC. doi: 10.1128/9781555815660.ch95
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References

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1. Ahmad, I.,, Z. Mehmood, and, F. Mohammad. 1998. Screening of some Indian medicinal plants for their antimicrobial properties. J. Ethnopharm. 62:183193.
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10. Perry, N. G.,, M. H. Benn,, N. J. Brennan,, E. J. Burgess,, G. Ellis,, D. J. Galloway,, S. T. Lorimer, and, R. S. Tangney. 1999. Antimicro-bial, antiviral, and cyctotoxic activity of New Zealand lichens. Lichenologist 31:627636.
11. Poelt, Poelt., and, A. Vězda. 1981. Bestimmungs-schlüssel Europäisher Flechten. Ergänzungsheft II. Bibliotheca Lichenologica 16:1390.
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13. Zeybek, Z.,, A. Kimiran, and, A. Çotuk. 2003. Distribution of bacteria causing Legionnaires disease at potable water in Istanbul. Biol. Bratislava (58) 6.

Tables

Generic image for table
TABLE 1

Lichen specimens used for testing antimicrobial activity against strains

Citation: Zeybek Z, Doğruöz N, Çotuk A, Karagöz A, Aslan A. 2006. Antimicrobial Activity of Some Lichen Extracts against , p 407-410. In Cianciotto N, Kwaik Y, Edelstein P, Fields B, Geary D, Harrison T, Joseph C, Ratcliff R, Stout J, Swanson M (ed), . ASM Press, Washington, DC. doi: 10.1128/9781555815660.ch95

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