The Effects of Pb²⁺ Stress on the Growth and Physiological Characteristics of Chlorella pyrenoidosa

Abstract:

In the Pb²⁺ stress experiments, the concentrations of Pb²⁺ were 1, 5, 10, 50, and 80 mg/L respectively, BG11 culture medium was served as the control. The results showed that Pb²⁺ affected markedly on the growth and physiological characteristics of chlorella pyrenoidosa under certain concentration. As the exposure time, chlorella pyrenoidosa biomass is restrained gradually. Pb²⁺ also have significant inhibition to effect chlorophyll content and have an effect relationship with the malondialdehyde content of chlorella pyrenoidosa . Lead concentrations and the soluble protein content are time effect relationship . And the longer the inhibitory effect becomes more obvious. Superoxide dismutase (sod) activity increased first then decreased with the increase of the concentration of Pb²⁺.

• Periodical: Advanced Materials Research (Volumes 1073-1076)
• Pages: 147-153
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1073-1076.147
• Online since: December 2014
• Authors: Zhan Ning Zhang, Jian Sheng Cui*
• Keywords: Chlorella Pyrenoidosa, Growth, Pb²⁺, Physiological Characteristic

References

[1] Binglian Wang, Yan Yang: J. Shandong science, 2007, 20: 54-57 In Chinese.

[2] Ying Liang, Shuai Wang: J. Transactions of Oceanology and Limnology , 2009, 04: 72-82 In Chinese.

[3] Changen Qiu: J. Chongqing Medical University, 2006(5): 776-778 In Chinese.

[4] Jiang J, Li L, Li H P, Li F L． Biosorption of lead (Ⅱ) and cadmium (Ⅱ) from aqueous solution by Chlorella pyrenoidsa and its influential factors． Acta Ecologica Sinica, 2012, 32( 7) : 1995-2003 In Chinese.

DOI: 10.5846/stxb201108301268

[5] Qunying Zhou, Tingyao Gao. Environmental engineering microbiology [M] . Beijing: Higher education press, 2000. 292- 293 In Chinese.

[6] Tang Z C. The experimental guide of modern plant physiology [M] . Beijing: Academic Press. 1999, 95, 305, 314 In Chinese.

[7] Baoxing Ye, Xinchan Zhu. Biological science experiments[M]. Beijing: Higher education press, 2007. 439-442 In Chinese.

[8] Furong Wang. Biological engineering analysis and inspection [M]. Beijing: China light industry press. 2006: 124, 237-239 In Chinese.

[9] Ganesh K Sankar, Baskaran L , Rajasekaran S , Sumathi K, Chidambaram A LA, Sundaramoorthy P: J. Colloids and surfaces. B , Biointerfaces , 2008 , 63 ( 2 ) : 159 – 163.

DOI: 10.1016/j.colsurfb.2007.11.016

[10] Viehweger K, Geipel G: J. Environmental and Experimental Botany, 2010, 69: 39-46.

[11] Tong Luo, Wuyuan Deng, Ni Zeng: J. Journal of sichuan normal university, 2005 In Chinese.

[12] Bang Xiong. Toxicity assessment of Chlorella vulgaris and Chlorella protothecoides following exposure to [D], East China university of science and technology, 2013 In Chinese.

[13] Changen Qiu, Zhengyu Hu: J. Wuhan botanical research. 2007, 25(5): 521-526 In Chinese.

[14] Smirnoff N. Antioxicant systems and plants response to the environment, in: Smirnoff, N. (Ed. ), Environment and Plant Metabolism: Flexibility and Acclimation Bios Scientific Publishers, Oxford. (1995).

DOI: 10.1017/s0014479700025941

[15] Valavanidia A, Vlahogianni T, Dassenakis M. : J. Ecotox. Environ. Safe. 2006, 64: 178-189.

[16] Choudhary, M., Jetey, U.K., Khan, M.A.: J. Ecotox. Environ. Safe. 2007, 66: 204-209.

[17] Meenakshi Choudhary; Umesh Kumar Jetley; Mohammed Abash Khan; Sunaina Zutshi; Tasneem Fatma: J. Journal of Thermal Biology, 2005, 30: 524-531.

[18] Christine H. Foyer and Graham Notor: J. Plant Cell Environment, 2005, 28: 1056-1071.