Effect of dichlorvos on growth of Scenedesmus acutus

The effect of the dichlorvos on growth of the freshwater microalga Scenedesmus acutus was investigated. In general, the growth rate of S. acutus in control cultures are always high between 0 to 4 days, but that of cultures treated with dichlorvos were suddenly decreasing between 2 to 4 days. In contrast, in all control cultures the growth rate of S. acutus was always negative. These results demonstrated adverse effects of dichlorvos upon freshwater green algae (Scenedesmus acutus), thus, the application of this pesticide for control in agricultural practices must be done carefully since any disturbance affecting algae with similar or higher sensitivity will have severe repercussions on higher trophic levels.

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[1] Katsumata M, Koike T, Nishikawa M, Kazumura K, Tsuchiya H. 2006. Rapid ecotoxicological bioassay using delayed fluorescence in the green alga Pseudokirchneriella subcapitata. Water Research, 40: 3393-3400.
[2] Ma J, Wang S, Wang P, Ma L, Chen X, Xu C. 2006. Toxicity assessment of 40 herbicides to the gren alga Raphidocelis subcapitata. Ecotoxicology and Environmental Safety, 63, 456-462.
[3] Sabater C, Cuesta A, Carrasco R. 2002. Effects of bensulfuron-methyl and cinosulfuron on growth of four freshwater species of phytoplankton, Chemosphere, 46,953-960.
[4] Yeh HJ, Chen CY. 2006. Toxicity assessment of pesticides to Pseudokirchneriella subcapitata under air-tight test environment. Journal of Hazardous Materials, A131, 6-12.
[5] Ma J, Liang W, Xu L, Wang S, Wei Y, Lu J. 2001. Acute toxicity of 33 herbicides to the green alga Chlorella pyrenoidosa. Bull Environ Contam Toxicol. 66, 536-541.
[6] Cetin AK, Mert N. 2005. The Effects of Paraquat on Population Growth of Scenedesmus acutus. Fresenius Environmental Bulletin 14 (7): 634-636.
[7] Gómez de Barreda D, Sabater C, Carrasco JM. 2004. Effects of Propanil, Tebufenozide and Mefenacet on Growth of Four Freshwater Species of Phytoplankton: A Microplate Bioassay. Chemosphere, 56,315-320.
[8] Nayak S, Mohanty R C, Mohanty L. 1996. Growth Rate of Ankistrodesmus falcatus and Scenedesmus bijuga in Mixed Culture Exposed to Monocrotophos. Bull. Environ. Contam. Toxicol. 57:473-479.
[9] EPA. 2000. Environmental Protection Agency, Office of Pesticide Programs, Pesticide Ecotoxicity Database, Environmental Fate and Effects Division, USEPA, Washington DC.
[10] Raine RCT, Cooney JJ, Coughlan MF, Patching JW. 1990. Toxicity of nuvan and dichlorvos towards marine phytoplankton. Bot. Mar. 33: 533-537.
[11] Ma J, Lin F, Quin W, Wang P. 2004. Differential response of four cyanobacterial and green algal species to triazophos, fentin acetate and ethephon. Bull. Environ. Contam. Toxicol., 73: 890-897.
[12] Ma J, Lin F, Wang S, Xu L. 2004. Acute toxicity assessment of 20 herbicides to the green alga Scenedesmus quadricauda (Trup.) Breb. Bull. Environ. Contam. Toxicol., 72: 1164-1171.
[13] Ma J, Wang P, Huang C, Lu N, Quin W, Wang Y. 2005. Toxicity of Organophosphorous Insecticides to Three Cyanobacterial and Five Green Algal Species. Bull. Environ. Contam. Toxicol., 75, 490-496.
[14] Bris HL, Maffart P, Bacquene G, Buchet V, Galgani F, Blanc G. 1995. Laboratory study on the effect of dichlorvos on two commercial bivalves. Aquaculture, 138, 1-4, 139-144.
[15] Balton-Warberg M, Coen LD, Weinstein JE. 2007. Acute toxicity and acetylcholinesterase inhibition in grass shrimp (Palaemonetes pugio) and oysters (Crassostrea virginica) exposed to the organophosphate dichlorvos: Laboratory and field studies. Archives of Environmental contamination and toxicology. 52: 207-216.
[16] Assis CRD, Amaral IPG, Castro PF, Carvalho LB, Bezerra RS. 2007. Effects of Dichlorvos on the acetylcholinesterase from tambaqui (Clossoma macropomum) brain. Environmental Toxicology and Chemistry, 26, 7, 1451-1453.
[17] Fargasova A. 1998. Comparison of effects of tributyl-, triphenyl-, and tribenzyltin compounds on freshwater benthos and alga Scenedesmus quadricauda. Bull Environ Contam Toxicol. 60: 9-15.
[18] Geoffroy L, Dewez D, Vernet G, Popovic R. 2003. Oxyfluorfen toxic effect on S. obliquus evaluated by different photosynthetic and enzymatic biomarkers. Arch Environ Contam Toxicol. 45: 445-452.
[19] Ma J, Lin F, Wang S, Xu L. 2003. Toxicity of 21 herbicides to the green alga Scenedesmus quardicauda. Bull Environ Contam Toxicol. 71, 594-601.
[20] Ma J, Liang W. 2001. Acute Toxicity of Herbicides to the Gren Algae Chlorella pyrenoidosa and Scenedesmus obliquus. Bull. Environ. Contam. Toxicol. 67: 347-351.