Paper Title:
The Enhanced Cu2+- Stress Resistance of Microcystis Aeruginosa Induced by Exogenous Abscisic Acid
  Abstract

Previous studies showed that abscisic acid (ABA) play a role in oxidative and osmotic stress response of cyanobacteria cells. Whether it has function in metal stress response remains unclear. The effect of exogenous Abscisic Acid on Cu2+ -Stress resistance of bloom-forming cyanobacteria Microcystis aeruginosa was studied in this paper. The results showed that 20 mg. l-1 exogenous ABA can effectively enhance the resistance ability of Microcystis aeruginosa cells to Cu2+-stress at the concentration of 0.25 mg.l-1. Exogenous ABA can restore the growth inhibition by elevating chlorophyll a, phycocyanin and allophycocyanin protein content in Cu2+ -stressed cells. ABA helps absorbing more metal ions to decrease its toxicity by inducing solvable protein and cellular polysaccharides biosynthesis. By promoting the Superoxide Dismutase and Glutathione Peroxidase activities, exogenous ABA can effectively help scavenge the excess superoxide radicals in the cells caused by Cu2+ -Stress. These results indicated that ABA might also play important role in metal-stress response and resistance.

  Info
Periodical
Advanced Materials Research (Volumes 343-344)
Chapter
Session 3: Biology-Related Materials Research in Environmental Protection
Edited by
David Wang
Pages
1229-1235
DOI
10.4028/www.scientific.net/AMR.343-344.1229
Citation
S. B. Li, J. Lv, H. F. Xue, Z. X. Xu, J. Y. Wei, L. H. Guo, M. Z. Yang, X. L. Chen, "The Enhanced Cu2+- Stress Resistance of Microcystis Aeruginosa Induced by Exogenous Abscisic Acid", Advanced Materials Research, Vols. 343-344, pp. 1229-1235, 2012
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hai Yan Li, Wan Zhong Zhang
Chapter 3: Environmental and Materials
Abstract:Abscisic acid (ABA) and sodium nitroprusside (SNP) treatment significantly increased chilling tolerance in maize seedlings. ABA in...
423
Authors: Zhe Hua Xue, Yu Lin Tang, Yu Hui Sun
Chapter 2: Environmental Chemistry and Biology
Abstract:Anabaena sp. and M. aeruginosa were used to examine the toxic mechanism of nano-ZnO to them, as well as the toxicity. Typical...
278
Authors: Jian Fen Du, Yu Lin Tang, Qian Li
Chapter 1: Environmental Materials and Processing Technology
Abstract:Anabaena sp. and M. aeruginosa were used to examine the toxic mechanism of nanoZnO to them, as well as the...
77
Authors: Wei Shun Cheng, Dan Li Zeng, Na Zhang, Hong Xia Zeng, Xian Feng Shi, Yu Hua Li, Yu Hong Sun
Chapter 11: Biological and Environment-Friendly Materials
Abstract:The effects of exogenous abscisic acid and two sulfonamide compounds: Sulfacetamide and Sulfasalazine were studied on tolerance of watermelon...
705