Effects of sub-lethal UV-C irradiation on the growth of Microcystis aeruginosa

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1412-1415
Journal / PublicationQinghua Daxue Xuebao/Journal of Tsinghua University
Volume50
Issue number9
Publication statusPublished - Sep 2010

Abstract

Microcystis aeruginosa is a typical bloom forming species in China waters. This study investigates the suppression of the algae growth by sub-lethal Ultraviolet-C (UV-C) irradiation. The algae were exposed to UV-C irradiation using a collimated beam apparatus and then sampled to determine the cell density using a confocal laser scanning microscope, the membrane integrity using flow cytometry, and the relative fluorescence level of phycocyanin and Chl a using a three-dimensional excitation-emission matrix analysis. The results show that UV-C irradiation at 50~100 mJ/cm2 suppresses M. aeruginosa growth of 106 cells/mL for 7 days and the suppression effect is sub-lethal to the cells.

Research Area(s)

  • Growth suppression, Lake, Membrane integrity, Microcystis aeruginosa, Sub-lethal UV-C irradiation

Citation Format(s)

Effects of sub-lethal UV-C irradiation on the growth of Microcystis aeruginosa. / Tao, Yi; Mao, Xianzhong; Zhang, Xihui; Yuan, Kan; Au, Doris W T.

In: Qinghua Daxue Xuebao/Journal of Tsinghua University, Vol. 50, No. 9, 09.2010, p. 1412-1415.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review