Influence of Temperature Variations on Growth of Nostoc (Cyanobacteria) HS-5 and HS-20 Isolated from Indonesian Hot Springs

NINING BETAWATI PRIHANTINI, CAHYA GUSLYANI, RATNA YUNIATI, WELLYZAR SJAMSURIDZAL

Abstract


The research aims to know the effect of variation temperature to the growth of Nostoc HS (Hot Spring)-5 and HS-20. Strain of Nostoc HS-5 was isolated from Ciseeng hot spring which has habitat temperature range of 30-43 °C, and Nostoc HS-20 was isolated from Pancar Mountain hot spring which has temperature range of 46-69 °C. The research was done by measuring biomass weight and chlorophyll content on day-1, 2, 3, 4, 7, 10, 14, 17, and 21. The temperatures used were 20 °C, 35 °C, and 50 °C. The growth medium used was Bold Basal Medium (BBM) with pH 6.6. Each treatment was made in four replications. Non-parametric statistical analysis used were the Friedman test (a=0.05) and Spearman test (a=0.01).The result showed there were significant differences on the biomass weight of Nostoc HS-5 and HS-20 grown at temperature of 20 °C, 35 °C, and 50 °C. The average amount of biomass highest weight for Nostoc HS-5 and HS-20 occurred in both strains were grown at 35 °C.  Besides that, there was no correlation between the weight of biomass and chlorophyll content of Nostoc HS-5 and HS-20.


Keywords


Nostoc; biomass weight; cyanobacteria; hot spring; temperature

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DOI: http://dx.doi.org/10.5454/mi.12.2.%25p

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