Environmental and Agricultural Microbiology. Группа авторов
Читать онлайн книгу.species (ROS). In order to avoid this situation, the cell starts to produce special kind of protein, enzyme, or any substance which can able to reduce, remove, or transform the Cr(VI). Besides this, microalgae also release electron through photosynthesis and they have a very unique metabolic process compensating the electron for the reduction of Cr(VI) [16, 59].
According to the findings of Nacorda et al., (2010), there is an initial rapid phase of passive extracellular biosorption process [60]. It was carried out following a slower active intracellular bio-absorption. This method is quite similar to the biphasic uptake take place in bacteria, fungi and other microbes. It is also reported that the longer is the incubation time the higher is the amount of Cr(VI) absorbed by Chlorella vulgaris. Another reason behind this bio-absorption may be due to the high storing capacity of the protoplasm.
2.5 Conclusion
Although, chromium is pervasive metal in the environment and Cr(VI) is reported as toxic with several carcinogenic, mutagenic, and a few more hazards, which are affected to behavioral, physiological, biochemical, and immunological aspects. Although bacteria, fungi, and other algal forms are able to convert the hexavalent chromium to trivalent chromium (nontoxic form) but in addition to the common mechanism found in bacteria and all other microbes, the microalgae uses some special mechanism like the residues of flavonoids and the electrons release during photosynthesis for the conversion of hexavalent chromium to trivalent form. Microalgae are potential candidate for the detoxification of Cr(VI), which would be used for the treatment of chromium contaminated water and soil in an eco-friendly manner.
References
1. Hayat, S., Khalique, G., Irfan, M., Wani, A.S., Tripathi, B.N., Ahmad, A., Physiological changes induced by chromium stress in plants: an overview. Protoplasma, 249, 599, 2012.
2. Choudhury, S., Role of Chromite Mineralisation in Orissa. Orissa Rev., 57–60, 2006.
3. Mertz, W., Chromium occurance and its function in biological systems. Physiol. Rev., 49, 165, 1969.
4. Anderson, A.J., Mayer, D.R., Mayer, F.K., Heavy metal toxicities: levels of nickel, cobalt and chromium in the soil and plants associated with visual symptoms and variation in growth of an oat crop. Aust J Agric Pest., 89, 47, 1972.
5. Zhitkovich, A., Voitkun, V., Costa, M., Formation of the amino acid-DNA complexes by hexavalent and trivalent chromium in vitro: Importance of trivalent chromium and the phosphate group. Biochem., 35, 7275, 1996.
6. Costa, M., Toxicity and carcinogenicity of Cr(VI) in animal models and humans. Crit. Rev. Toxicol., 27, 431, 1997.
7. Jordão, C.P., Pereira, J.L., Jham, G.N., Chromium contamination in sediment, vegetation and fish caused by tanneries in the State of Minas Gerais, Brazil. Sci. Total Environ., 207, 1, 1997.
8. Khasim, D.I., Kumar, N.V., Hussain, R.C., Environmental contamination of chromium in agricultural and animal products near a chromate industry. Bull. Environ. Contam. Toxicol., 43, 742, 1989.
9. Dhakate, R. and Singh, V.S., Heavy metal contamination in groundwater due to mining activities in Sukinda valley, Orissa - A case study. J. Geogr. Reg. Plann., 1, 58, 2008.
10. Nigam, H., Das, M., Chauhan, S., Pandey, P., Swati, P., Yadav, M., Tiwari, A., Effect of chromium generated by solid waste of tannery and microbial degradation of chromium to reduce its toxicity: A review. Adv. Appl. Sci. Res., 6, 129, 2015.
11. Zeraatkar, A.K., Ahmadzadeh, H., Talebi, A.F., Moheimani, N.R., McHenry, M.P., Potential use of algae for heavy metal bioremediation, a critical review. J. Environ. Manage., 181, 817, 2016.
12. Majhi, P. and Samantaray, S.M., Thermotolerant microalgal diversity in the chromium metal polluted sites of Sukinda mining area. Int. J. Curr. Microbiol. Appl. Sci., 9, 1109, 2020.
13. Jobby, R., Jha, P., Yadav, A.K., Desai, N., Biosorption and biotransformation of hexavalent chromium [Cr(VI)]: A comprehensive review. Chemosphere, 207, 255, 2018.
14. Travieso, L., Canizarez, R.O., Borja, R., Benitez, F., Dominguez, A.R., Dupeyron, R., Valiente, V., Heavy metal removal by microalgae. Bull. Environ. Contam. Toxicol., 62, 144, 1999.
15. Liu, K.J., Jiang, J., Shi, X., Gabrys, H., Walczak, T., Swartz, M., Low-frequency EPR study of chromium (V) formation from chromium(VI) in living plants. Biochem. Biophys. Res. Commun., 206, 829, 1995.
16. Cervantes, C., Garc, J.C., Devars, S., Corona, F.G., Tavera, H.L., Torres-Guzma, J.C., Moreno-Sainchez, R., Interactions of chromium with microorganisms and plants. FEMS Microbiol. Rev., 25, 335, 2001.
17. Corradi, M.G., Gorbi, G., Ricci, A., Torelli, A., Bassi, A.M., Chromiuminduced sexual reproduction gives rise to a Cr-tolerant progeny in Scenedesmus acutus. Ecotoxicol. Environ. Safety, 32, 12, 1995.
18. Wong, P.T. and Trevors, J.T., Chromium toxicity to algae and bacteria, in: Chromium in the Natural and Human Environments, NriaguJO, Nieboer E (eds), vol. 305, John Wiley and Sons, Wiley, New York, 1988.
19. Viamajala, S., Peyton, B.M., Apel, W.A., Petersen, J.N., Chromate reduction in Shewanellaoneidensis MR-1 is an inducible process associated with anaerobic growth. Biotechnol. Prog., 18, 290, 2002.
20. Ahemad, M., Enhancing phytoremediation of chromium stressed soils through plant growth promoting bacteria. J. Genet. Eng. Biotechnol., 13, 51, 2015.
21. Cervantes, C., Garcia, J.C., Nies, D., Silver, S., Molecular Microbiology of heavy metals, vol. 407, Springer-Verlag, Berlin, 2007.
22. Subrahmanyam, D., Effects of chromium toxicity on leaf photosynthetic characteristics and oxidative changes in wheat (Triticum aestivum L.). Photosynthetica, 46, 339, 2008.
23. Vajpayee, P., Tripathi, R.D., Rai, U.N., Ali, M.B., Singh, S.N., Chromium (VI) accumulation reduces chlorophyll biosynthesis, nitrate reductase activity and protein content in Nymphaea alba. Chemosphere, 41, 1075, 2000.
24. Hörcsik, Z., Kovács, L., Láposi, R., Mészáros, I., Lakatos, G., Garab, G., Effect of chromium on photosystem 2 in the unicellular green alga, Chlorella pyrenoidosa. Photosynthetica, 45, 65, 2007.
25. Clijsters, H. and Van Assche, F., Inhibition of photosynthesis by heavy metals. Photosynth. Res., 7, 31, 1985.
26. Bishnoi, N.R., Dua, A., Gupta, V.K., Sawhney, S.K., Effect of chromium on seed germination, seedling growth and yield of peas. Agri. Eco. Environ., 47, 47, 1993.
27. Shankar, A.K., Cervantes, C., Loza-Tavera, H., Avudainayagam, S., Chromium toxicity in plants. Environ. int., 1, 739, 2005. 28. Montes-Holguin, M.O., Peralta Videa, J.R., Meitzner, G., Martinez-Martinez, A., de la Rosa, G., Castillo-Michel, H.A., Gardea-Torresdey, J.L., Biochemical and spectroscopic studies of the response of Convolvulus arvensis L. @ to chromium (III) and chromium (VI) stress. Environ. Toxicol. Chem., 25, 220, 2006.
29. Sinha, S., Saxena, R., Singh, S., Chromium induced lipid peroxidation in the plants of Pistia stratiotes L. role of antioxidants and antioxidant enzymes. Chemosphere, 58, 595, 2005.
30. Schmfger, M.E.V., Phytochelatins: complexation of metals and metalloids, studies on the phytochelatin synthase, PhD Thesis, Munich University of Technology (TUM), Munich, 2001.
31. Boonyapookana, B., Upatham, E.S., Kruatrachue, M., Pokethitiyook, P., Singhakaew, S., Phytoaccumulation and phytotoxicity of cadmium and chromium in duckweed Wolffia globosa. Int. J. Phytorem., 4, 87, 2002.
32. Shanker, A.K., Djanaguiraman, M., Pathmanabhan, G., Sudhagar, R., Avudainayagam, S., Uptake and phytoaccumulation of chromium by selected tree species. Proceedings of the international conference on water and environment held in Bhopal, India, 2003.
33. Nagajyoti,