The growth curve of Synechococcus HS-7 and Synechococcus HS-9 isolated from Indonesia hot springs grown in CT medium with initial pH 9

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Abstract

Cyanobacteria or blue-green algae is a major group of microorganisms containing chlorophyll and phycocyanin pigments. The genus Synechococcus is an example of cyanobacteria. Research on comparison of the growth curve of Synechococcus HS-7 and Synechococcus HS-9 were grown at temperature 35°C and initial pH of medium 9 had been performed. Synechococcus used in the study is Indonesian indigenous microorganisms. Synechococcus HS-7 isolated from Ciseeng hot springs in West Java with water temperature between habitats was 43°C and pH ranges were 7.5 - 8. Synechococcus HS-9 isolated from Rawa Danau Banten hot springs with water temperature of habitats was 50°C and pH ranges were 6.5 - 7.5. The purpose of this research is to know the differences of the growth curve of Synechococcus HS-7 and Synechococcus HS-9 with the mean of cell density parameter. Counting cell density was done for 7 days from day-0 (t0) to day-7 (t7). Each treatment carried out in two replications. The result showed that there were differences between cell density of Synechococcus HS-7 and Synechococcus HS-9. All of Synechococcus strains experienced adaptation (lag) phase and exponential (log) phase. Synechococcus HS-7 experienced adaptation (lag) phase shortly than Synechococcus HS-9. Adaptation (lag) phase in Synechococcus HS-7 occurred at t0 - t1 while in Synechococcus HS-9 occurred at t0 - t3. Exponential (log) phase in Synechococcus HS-7 also occurred faster at t1 - t4. Synechococcus HS-9 experienced exponential (log) phase from day-3 (t3) until the last day of observation. The highest cell density of Synechococcus HS-7 occurred at t6 while Synechococcus HS-9 occurred at t7 for 7 days observation. Synechococcus HS-9 grows well in CT medium with initial pH 9 than Synechococcus HS-7.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
EditorsRatna Yuniati, Terry Mart, Ivandini T. Anggraningrum, Djoko Triyono, Kiki A. Sugeng
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735417410
DOIs
Publication statusPublished - 22 Oct 2018
Event3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017 - Bali, Indonesia
Duration: 26 Jul 201727 Jul 2017

Publication series

NameAIP Conference Proceedings
Volume2023
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017
CountryIndonesia
CityBali
Period26/07/1727/07/17

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    Julia, R., & Prihantini, N. B. (2018). The growth curve of Synechococcus HS-7 and Synechococcus HS-9 isolated from Indonesia hot springs grown in CT medium with initial pH 9. In R. Yuniati, T. Mart, I. T. Anggraningrum, D. Triyono, & K. A. Sugeng (Eds.), Proceedings of the 3rd International Symposium on Current Progress in Mathematics and Sciences 2017, ISCPMS 2017 [020145] (AIP Conference Proceedings; Vol. 2023). American Institute of Physics Inc.. https://doi.org/10.1063/1.5064142