The changes of nitric oxide production during the growth of Microcystis aerugrinosa.

Journal Article (Journal Article)

This study characterized the changes of nitric oxide (NO) production during the growth of Microcystis aerugrinosa, a cyanobacterium which usually cause cyanobacterial blooms. Results showed a drastic NO release accompanying with cell density and Chl-a content sharp rises when M. aerugrinosa grew from fifth day to sixth day. Moreover, high N:P ratio accelerated the cyanobacterial growth and NO burst. Sodium nitroprusside, an exogenous NO donor, promoted M. aerugrinosa growth with the optimal concentration of 0.1 mg/L. Experiments by supplementing with sodium nitrite and L-arginine demonstrated NO production in M. aerugrinosa cells was mainly through nitrate reductase (NR) pathway while minorly through NO synthase pathway. All these data suggested M. aerugrinosa produced increasing NO during its growth mainly by NR pathway, during which NO positively regulated the growth of M. aerugrinosa.

Full Text

Duke Authors

Cited Authors

  • Tang, X; Chen, J; Wang, W-H; Liu, T-W; Zhang, J; Gao, Y-H; Pei, Z-M; Zheng, H-L

Published Date

  • December 2011

Published In

Volume / Issue

  • 159 / 12

Start / End Page

  • 3784 - 3792

PubMed ID

  • 21807444

Electronic International Standard Serial Number (EISSN)

  • 1873-6424

International Standard Serial Number (ISSN)

  • 0269-7491

Digital Object Identifier (DOI)

  • 10.1016/j.envpol.2011.06.042


  • eng