Influence of tris(2,3-dibromopropyl) isocyanurate on the expression of photosynthesis genes of Nannochloropsis sp

Gene. 2014 Apr 25;540(1):68-70. doi: 10.1016/j.gene.2014.02.025. Epub 2014 Feb 25.

Abstract

The proteins encoded by psaA and psaB form a heterodimer, an essential compound of photosystem; while the protein encoded by psbC binds with chlorophyll a in photosystem II, serving as antennae in photosystem. Here we report that a heterocyclic brominated flame retardant, tris(2,3-dibromopropyl) isocyanurate (TBC), inhibited the expression of psaA and psbC, then leads to the decrease of Nannochloropsis sp.'s growth biomass. TBC exposure inhibited the expression of psaA and psbC at 10, 100ng/mL slightly and 1000ng/mL significantly. In addition, TBC was found to slow down the growth of Nannochloropsis sp. at concentrations ranging from 10 to 1000ng/mL. These results indicated that TBC influenced both photosynthesis and growth performance of Nannochloropsis sp.

Keywords: Nannochloropsis sp.; Photosynthesis; Tris(2,3-dibromopropyl) isocyanurate; psaA; psbC.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Flame Retardants / pharmacology*
  • Gene Expression / drug effects
  • Gene Expression Regulation
  • Photosynthesis / genetics
  • Photosynthetic Reaction Center Complex Proteins / genetics*
  • Photosynthetic Reaction Center Complex Proteins / metabolism
  • Stramenopiles / drug effects
  • Stramenopiles / genetics*
  • Stramenopiles / growth & development
  • Triazines / pharmacology*
  • Water Pollutants, Chemical / pharmacology*

Substances

  • Flame Retardants
  • Photosynthetic Reaction Center Complex Proteins
  • Triazines
  • Water Pollutants, Chemical
  • tris(2,3-dibromopropyl)isocyanurate