ISOLATION, IDENTIFICATION AND CHARACTERIZATION OF MODERATELY HALOPHILIC BACTERIA PRODUCING HYDROLYTIC ENZYMES FROM ARAN- BIDGOL SALT LAKE

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BABAVALIAN H.; AMOUZGAR M.A.; POURBABAEI A.A.

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Journal: IRANIAN JOURNAL OF BIOLOGY Year:2009 | Volume:22 | Issue:1 Page(s): 24-45

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Title

ISOLATION, IDENTIFICATION AND CHARACTERIZATION OF MODERATELY HALOPHILIC BACTERIA PRODUCING HYDROLYTIC ENZYMES FROM ARAN- BIDGOL SALT LAKE

Author(s)

BABAVALIAN H. | AMOUZGAR M.A. | POURBABAEI A.A. | Issue Writer Certificate

Keywords

EXTREMOPHILESQ3

HALOPHILEQ2

HYDROLYTIC ENZYMESQ3

SCREENINGQ3

Abstract

Aran-Bidgol salt lake is one of the lakes in central desert zone of Iran and is largest playa in Iran. This lake has shape as like a triangle that top it is towards north. Base length this triangle is 35 Km and high it is 38 Km. SCREENING bacteria from different points Aran-Bidgol salt lake, led to the isolation of 61 Gram-positive halophilic bacteria and 22 Gram-negative bacteria able to produce different HYDROLYTIC ENZYMES. These strains are able to grow optimally in media with 5-15 % salts, 35-37°C temperature and pH 7.2. Strains No. 32, 20, 27, 40, 40, 9, 11, 24, 16 and 20 were produced amylase, protease, lipase, DNase, inulinase, xylanase, carboxy methyl cellulase, pectinase, pullulanase and chitinase. It is interesting that combined hydrolytic activities have been detected in some strains. DNase, indulines were the most enzymes produced in Grampositive bacilli and Gram- negative bacteria, lipase and Gram-positive cocci, pullulanase, carboxy methyl cellulase. Among these isolates, several strains with the ability to produce different valuable enzymes were selected, including AMB1(8 enzymes); AMB7, AMBI0, AMB12(7 enzymes); AMB5, AMB6, AMB11, AMB13(6 enzymes); AMB2, AMB3, AMB8, AMB9(5 enzymes); AMB4, AMGl(4 enzymes); AMCl, AMC2(3 enzymes); AMC3, AMC8, AMCI7, AMG2 (2 enzymes); AMG3(1 enzymes). Selected strains, after more accurate physiological and biochemical studies were identified regarding phylogeny and molecular characteristics using 16S rRNA technique. Sequencing 16SrRNA was performed to complete the identification process, which Gram-positive bacteria were belong to Halobacillus, Thalassobacillus, Bacillus, Salinicoccus and Gram-negative bacteria were belong to ldiomarina, Salicola and Halomonas.

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APA: Copy

BABAVALIAN, H., AMOUZGAR, M.A., & POURBABAEI, A.A.. (2009). ISOLATION, IDENTIFICATION AND CHARACTERIZATION OF MODERATELY HALOPHILIC BACTERIA PRODUCING HYDROLYTIC ENZYMES FROM ARAN- BIDGOL SALT LAKE. IRANIAN JOURNAL OF BIOLOGY, 22(1), 24-45. SID. https://sid.ir/paper/21417/en

Vancouver: Copy

BABAVALIAN H., AMOUZGAR M.A., POURBABAEI A.A.. ISOLATION, IDENTIFICATION AND CHARACTERIZATION OF MODERATELY HALOPHILIC BACTERIA PRODUCING HYDROLYTIC ENZYMES FROM ARAN- BIDGOL SALT LAKE. IRANIAN JOURNAL OF BIOLOGY[Internet]. 2009;22(1):24-45. Available from: https://sid.ir/paper/21417/en

IEEE: Copy

H. BABAVALIAN, M.A. AMOUZGAR, and A.A. POURBABAEI, “ISOLATION, IDENTIFICATION AND CHARACTERIZATION OF MODERATELY HALOPHILIC BACTERIA PRODUCING HYDROLYTIC ENZYMES FROM ARAN- BIDGOL SALT LAKE,” IRANIAN JOURNAL OF BIOLOGY, vol. 22, no. 1, pp. 24–45, 2009, [Online]. Available: https://sid.ir/paper/21417/en

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