Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 70: Issue 2
A microcalorimetric study of the biologic effect of Mn(II) on Bacillus thuringiensis growth
Authors:
J. Yao Huazhong Agricultural University Key Laboratory of Agricultural Microbiology of Chinese Agriculture Ministry Wuhan 430070 P. R. China Wuhan 430070 P. R. China

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Y. Liu Wuhan University Department of Chemistry, College of Chemistry and Molecular Science Wuhan 430072 P. R. China Wuhan 430072 P. R. China

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Z. Gao Wuhan University Department of Chemistry, College of Chemistry and Molecular Science Wuhan 430072 P. R. China Wuhan 430072 P. R. China

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P. Liu Wuhan University Department of Chemistry, College of Chemistry and Molecular Science Wuhan 430072 P. R. China Wuhan 430072 P. R. China

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M. Sun Huazhong Agricultural University Key Laboratory of Agricultural Microbiology of Chinese Agriculture Ministry Wuhan 430070 P. R. China Wuhan 430070 P. R. China

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S. Qu Wuhan University Department of Chemistry, College of Chemistry and Molecular Science Wuhan 430072 P. R. China Wuhan 430072 P. R. China

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Z. Yu Huazhong Agricultural University Key Laboratory of Agricultural Microbiology of Chinese Agriculture Ministry Wuhan 430070 P. R. China Wuhan 430070 P. R. China

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Pages:
415–421
Online Publication Date:
01 Nov 2004
Publication Date:
01 Sep 2002
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1021616305653
Keywords:
Bacillus thuringiensis; Mn(II); growth metabolism; microcalorimetry
Restricted access

Abstract  

A microcalorimetric technique based on the bacterial heat-output was explored to evaluate the effect of Mn(II) on Bacillus thuringiensis. The power-time curves of the growth metabolism of B. thuringiensis and the effect of Mn(II) on it were studied using an LKB-2277 BioActivity Monitor, ampoules method, at 28C. For evaluation of the results, the maximum peak-heat output power (Pmax) in the growth phase, the growth rate constants (k), the log phase heat effects (Qlog ), and the total heat effect in 23 h (QT) for B. thuringiensis were determined. Manganese has been regarded as the essential biological trace element. Mn(II) of different concentration have different effects on B. thuringiensis growth metabolism. High concentration (800-1600 μg mL-1) of Mn(II) can promote the growth of B. thuringiensis; low concentration (500-800 μg mL-1) can inhabit its growth.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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