Identification and characteristics of a cyanobacterium isolated from a hot spring with dissolved inorganic carbon

研究成果: Article同行評審

34 引文 斯高帕斯(Scopus)


A photosynthetic species, isolated from an alkaline hot spring in eastern Taiwan, was applied to enhance the dissolved inorganic carbon (DIC) uptake capability under high alkaline and temperature conditions and was identified. The strain was found to be close to Thermosynechococcus elongatus BP-1 and Synechococcus elongatus based on phylogenetic analysis of 16S rRNA genes. The result was verified with morphological observations. This strain was named as Thermosynechococcus sp. CL-1 (TCL-1). A study of the effects of pH and DIC on the content variations of four elements (C, N, H, and O), lipids (LI), proteins (PR), carbohydrates (CA), and the bioenergy potential was carried out. The concentrations of PR and LI were the highest under the cultivation of pH 7 and CA was at 10.5. According to the analysis of three compositions, the production pathway of LI might be shifted to CA from pH 7 to 10.5 and then shifted to inorganic compounds from pH 10.5 to 11. Regarding the effect of DIC at pH 9, the results revealed that the uptake pathway shift (such as metals uptake) might happen while DIC is less than 18.9 mM. From 18.9 to 47.2 mM DIC, the production pathway of LI shifted to CA and the contents of CA increased quickly from 47.2 to 94.3 mM without a further decrease of LI. Regarding the pyrolysis experiments with a thermogravimetric analyzer coupled with Fourier transform infrared spectroscopy (TG-IR), the transformation of xylan, cellulose, and lignin contents was observed under various pHs and DIC concentrations.

頁(從 - 到)1909-1914
期刊Environmental Science and Technology
出版狀態Published - 2007 3月 15

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 環境化學


深入研究「Identification and characteristics of a cyanobacterium isolated from a hot spring with dissolved inorganic carbon」主題。共同形成了獨特的指紋。