[Download] "Response of Glutathione Level in a Protozoan Ciliate, Stylonychia Mytilus, To Increasing Uptake of and Tolerance to Nickel and Zinc in the Medium (Report)" by Pakistan Journal of Zoology * eBook PDF Kindle ePub Free
eBook details
- Title: Response of Glutathione Level in a Protozoan Ciliate, Stylonychia Mytilus, To Increasing Uptake of and Tolerance to Nickel and Zinc in the Medium (Report)
- Author : Pakistan Journal of Zoology
- Release Date : January 30, 2011
- Genre: Life Sciences,Books,Science & Nature,
- Pages : * pages
- Size : 196 KB
Description
Byline: Farah R. Shakoori, Mahvish F. Zafar, Ayesha Fatehullah, A. Rehman and A. R. Shakoori - Email: arshak@brain.net.pk Abstract A ciliate protozoan, Stylonychia mytilus, has been shown to tolerate Zn2+ up to 29 ug/mL and Ni2+ up to 16 ug/mL. S. mytilus could uptake 28% Ni?2+ and 40% Zn2+ from the medium containing 5 mg/L of Ni2+ and 16 ug/mL of Zn2+ after 48 hrs of incubation. Ni and Zn uptake resulted in an increase in glutathione (GSH) level by 148% and 102% and non-protein thiols level by 49% and 37%, respectively at 5 mg/L. An increased GSH level correlates with metal tolerance and hence this high GSH level may be used as a marker for metal stress.