Dr. Sambasiva Tilak Kolluru

Dr. Sambasiva Tilak Kolluru

Professor
Acharya Nagarjuna University, India


Highest Degree
Ph.D. in Environmental Science from Andhra University, India

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Area of Interest:

Environmental Sciences
100%
Environmental Conservation
62%
Environmental Monitoring
90%
Environmental Biology
75%
Pollution Research
55%

Selected Publications

  1. Sajja, V.L. and K.S. Tilak, 2018. Sodium fluoride induced alterations in hematological parameters and oxygen consumption in Indian major carp Labeo rohita (Hamilton) as biomarkers of fluoride toxicity. J. Innov. Pharmaceut. Biol. Sci., 5: 56-62.
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  2. Sajja, V.L. and K.S. Tilak, 2018. Fluoride defilement in water and bio accumulation of it in some of the tissues of fresh water fish Labeo rohita (Hamilton). Int. J. Pharm. Biol. Sci., 8: 259-263.
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  3. Tataji, P.B. and M.V. Kumar, 2016. Biochemical changes induced by butachlor and machete 50% EC to the freshwater fish Channa punctata (Bloch). Int. J. Sci. Res., 5: 2048-2052.
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  4. Malempati, S., A. Gundabolu and S.T. Kolluru, 2016. Studies on antioxidant enzymes of sprayers in agricultural practices exposed to organophosphorus pesticides in the Nuzvid area. Int. J. Pharm. Pharmaceut. Res., 8: 88-96.
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  5. Malempati, S., A. Gundabolu and S.T. Kolluru, 2016. Biochemical indices of sprayers exposed to organophosphorous pesticides in the local area NUZVID. Int. J. Curr. Res. Multidisciplin., 1: 20-25.
  6. Tilak, K.S. and M. Sravanthi, 2014. Studies on biochemical changes of acetyl and butryl cholinesterases in the sprayers exposed to organophoshorous pesticides in Nuziveedu Krishna district A.P., India. Global J. Sci. Front. Res. C: Biol. Sci., 14: 1-7.
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  7. Sajja, V., S. Malempati and K.S. Tilak, 2014. Sodium fluoride induced biochemical changes in the tissues of fresh water Indian major carp Catla catla (Hamilton). J. Adv. Stud. Agric. Biol. Environ. Sci., 1: 254-260.
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  8. Butchiram, M.S., M.V. Kumar and K.S. Tilak, 2013. Studies on the histopathological changes in selected tissues of fish Labeo rohita exposed to phenol. J. Environ. Biol., 34: 247-251.
    PubMed  |  
  9. Susan, T.A., K. Sobha and K.S. Tilak, 2012. Toxicity and histopathological changes in the three Indian major carps, Labeo rohita (Hamilton), Catla catla (Hamilton) and Cirrhinus mrigala (Hamilton) exposed to fenvalerate. Int. J. Plant Anim. Environ. Sci., 2: 18-32.
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  10. Susan, T.A., K. Sobha, K. Veeraiah and K.S. Tilak, 2010. Studies on biochemical changes in the tissues of Labeo rohita and Cirrhinus mrigala exposed to fenvalerate technical grade. J. Toxicol. Environ. Health Sci., 2: 53-62.
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  11. Susan, T.A., K. Sobha and K.S. Tilak, 2010. A study on acute toxicity, oxygen consumption and behavioural changes in the three major Carps, Labeo rohita (ham), Catla catla (ham) and Cirrhinus mrigala (ham) exposed to Fenvalerate. Biores. Bull., 1: 33-40.
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  12. Vijayakumar, M., M.S. Butchiram and K.S. Tilak, 2009. Effect of quinalphos, an organophosphorous pesticide on nucleic acids and proteins of the freshwater fish Channa punctaus. J. Ecotoxicol. Environ. Monit., 19: 7-12.
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  13. Tilak, K.S., P.W. Raju and M.S. Butchiram, 2009. Effects of alachlor on biochemical parameters of the freshwater fish, Channa punctatus (Bloch). J. Environ. Biol., 30: 421-426.
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  14. Tilak, K.S. and R.S. Kumari, 2009. Acute toxicity of Nuvan®, an organophosphate to freshwater fish Ctenopharyngodon idella and its effect on oxygen consumption. J. Environ. Biol., 30: 1031-1033.
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  15. Butchiram, M.S., K.S. Tilak and P.W. Raju, 2009. Studies on histopathological changes in the gill, liver and kidney of Channa punctatus (Bloch) exposed to Alachlor. J. Environ. Biol., 30: 303-306.
    PubMed  |  
  16. Tilak, K.S., K. Veeraiah, P.B. Thathaji and M.S. Butchiram, 2007. Toxicity studies of butachlor to the freshwater fish Channa punctata (Bloch). J. Environ. Biol., 28: 485-487.
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  17. Tilak, K.S., K. Veeraiah and M.S. Butchiram, 2007. Effect of phenol on haematological components of Indian major carps Catla catla, Labeo rohita and Cirrhinus mrigala. J. Environ. Biol., 28: 177-179.
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  18. Tilak, K.S., K. Veeraiah and J.M.P. Raju, 2007. Effects of ammonia, nitrite and nitrate on hemoglobin content and oxygen consumption of freshwater fish, Cyprinus carpio (Linnaeus). J. Environ. Biol., 28: 45-47.
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  19. Tilak, K.S., K.S. Vardhan and B.S. Kumar, 2006. Comparative toxicity levels of ammonia, nitrite and nitrate to the freshwater fish Ctenopharyngodon idella. J. Ecotoxicol. Environ. Monit., 16: 273-278.
  20. Tilak, K.S., K. Veeraiah, M.S. Butchiram and P.B. Thathaji, 2006. Histopathological changes in the gill and liver of Catla catla exposed to phenol. J. Ecotoxicol. Environ. Monit., 16: 425-430.
  21. Tilak, K.S., K. Veeraiah, M.S. Butchiram and P.B. Thathaji, 2006. Acute toxicity of phenol to the freshwater fish Catla catla, Labeo rohita and Cirrhinus mrigala. J. Ecotoxicol. Environ. Monit., 16: 311-317.
  22. Tilak, K.S., K. Veeraiah and S.J. Lakshmi, 2006. Effects of ammonia, nitrate and nitrite on toxicity and haematological changes in the carps. J. Ecotoxicol. Environ. Monit., 16: 9-12.
  23. Tilak, K.S., K. Veeraiah and J.M.P. Raju, 2006. Toxicity and effects of ammonia, nitrite, nitrate and histopathological changes in the gill of freshwater fish Cyprinus carpio. J. Ecotoxicol. Environ. Monit., 16: 527-532.
  24. Tilak, K.S., K.S. Vardhan and B. Sumankumar, 2005. The effect of ammonia, nitrite and nitrate on the oxygen consumption of the fish Ctenopharyngodon idella. J. Aquat. Biol., 20: 117-122.
  25. Tilak, K.S., K. Veeraiah and P.B. Thathaji, 2005. Histopathological changes in gill tissue of the fish Channa punctata exposed to sublethal concentration of Butachlor and Machete, an herbicide. J. Aquat. Biol., 20: 111-115.
  26. Tilak, K.S., K. Veeraiah and D.K. Rao, 2005. The effect of Chlorpyrifos, an organophosphate in acetyl cholinesterase activity in freshwater fishes. J. Environ. Biol., 26: 73-77.
    PubMed  |  
  27. Tilak, K.S., K. Veeraiah and D.K. Rao, 2005. Histopathological changes observed in the gill, liver, brain and kidney of the Indian major carp Cirrhinus mrigala (Hamilton) exposed to chlorpyrifos. Pollut. Res., 24: 101-111.
  28. Tilak, K.S., K. Veeraiah and D.K. Rao, 2005. Biochemical changes induced by chlorpyrifos, an organophosphate compound in sublethal concentrations to the freshwater fish Catla catla, Labeo rohita and Cirrhinus mrigala. J. Environ. Biol., 26: 341-347.
    PubMed  |  
  29. Tilak, K.S., D.K. Rao and K. Veeraiah, 2005. Effects of chlorpyrifos on histopathology of the fish Catla catla. J. Ecotoxicol. Environ. Monit., 15: 127-140.
  30. Tilak, K.S., K. Veeraiah and D.K. Rao, 2004. Toxicity and bioaccumulation of chlorpyrifos in Indian carp Catla catla (Hamilton), Labeo rohita (Hamilton) and Cirrhinus mrigala (Hamilton). Bull. Environ. Contam. Toxicol., 73: 933-941.
    CrossRef  |  Direct Link  |  
  31. Tilak, K.S., K. Veeraiah, L.V. Sastry and J.V. Rao, 2003. Effect of fenvalerate technical grade on acetyl cholinesterase activity in Indian bullfrog Haplobatrachus tigerinus (Daudin). J. Environ. Biol., 24: 445-448.
    PubMed  |  
  32. Tilak, K.S., K. Veeraiah and L.V. Sastry, 2003. Bioaccumulation of fenvalerate technical grade in different organs of the frog Haplobatrachus tigerinus (Daudin). J. Environ. Biol., 24: 261-264.
    PubMed  |  
  33. Tilak, K.S., K. Veeraiah and K.S. Vardhan, 2003. Toxicity and residue studies of fenvalerate to the freshwater fish Channa punctatus (Bloch). Bull. Environ. Contam. Toxicol., 71: 1207-1212.
    CrossRef  |  Direct Link  |  
  34. Tilak, K.S., K. Satyavardhan and P.B. Thathaji, 2003. Biochemical changes induced by fenvalerate in the freshwater fish Channa punctatus. J. Ecotoxicol. Environ. Monitor., 13: 261-270.
  35. Tilak, K.S. and D.K. Rao, 2003. Chlorpyrifos toxicity to the freshwater fish. J. Aquat. Biol., 18: 161-166.
  36. Susan, A., T. Tilak and K.S. Tilak, 2003. Histopathological changes in the vital tissues of the fish Cirrhinus mrigala exposed to fenvalerate technical grade. Pollut. Res., 22: 179-184.
  37. Tilak, K.S., S.J. Lakshmi and T.A. Susan, 2002. The toxicity of ammonia, nitrite and nitrate to the fish, Catla catla (Hamilton). J. Environ. Biol., 23: 147-149.
    PubMed  |  
  38. Tilak, K.S., K. Veeraiah and S.J. Lakshmi, 2002. Studies of some biochemical changes in the tissues of Catla catla (Hamilton), Labeo rohita (Hamilton) and Cirrhinus mrigala (Hamilton) exposed to NH3-N, NO2-N and NO3-N. J. Environ. Biol., 23: 377-381.
    PubMed  |  
  39. Tilak, K.S. and K. Yacobu, 2002. Toxicity of fenvalerate a synthetic pyrethroid to five species of freshwater fish. Ecol. Environ. Conserv., 8: 37-40.
  40. Tilak, K.S. and K. Yacobu, 2002. Toxicity and effect of fenvalerate on fish Ctenopharyngodon idellus. J. Ecotoxicol. Environ. Monitor., 12: 9-15.
  41. Tilak, K.S. and K. Satyavardhan, 2002. Effect of fenvalerate on oxygen consumption and haematological parameters in the fish, Channa punctatus (Bloch). J. Aquat. Biol., 17: 81-86.
  42. Tilak, K.S., K. Veeraiah, T.A. Susan and K. Yacobu, 2001. Toxicity and residue studies of fenvalerate to some selected freshwater fishes. J. Environ. Biol./Acad. Environ. Biol., 22: 177-180.
    PubMed  |  
  43. Tilak, K.S., K. Veeraiah and V.J. Reddy, 2001. A study on nitrite-nitrogen effect on haemoglobin content of the fish Puntius sophore (Hamilton) and Channa punctatus (Bloch.). Pollut. Res., 20: 179-181.
  44. Tilak, K.S., K. Veeraiah and S.V. Lakshmi, 2001. Mixed toxicity of fenvalerate and monocrotophos to the freshwater fish Catla catla, Labeo rohita and Cirrhinus mrigala. J. Ecotoxicol. Environ. Monitor., 11: 163-168.
  45. Tilak, K.S., K. Veeraiah and K. Yacobu, 2001. Studies on histopathological changes in the gill, liver and kidney of Ctenopharyngodon idellus (Valenciennes) exposed to technical fenvalerate and EC 20%. Pollut. Res., 20: 387-393.
  46. Tilak, K.S., K. Veeraiah and G.V.R. Kumari, 2001. Toxicity and effect of chloropyrifos to the freshwater fish Labeo rohita (Hamilton). Pollut. Res., 20: 443-445.
  47. Tilak, K.S., K. Veeraiah and G.V.R. Kumari, 2001. Histopathological changes observed in the gill tissue of the fish Labeo rohita exposed to Chloropyrifos. J. Ecotoxicol. Environ. Monitor., 11: 267-270.
  48. Tilak, K.S., K. Veeraiah and G.V.R. Kumari, 2001. Biochemical changes induced in freshwater fish Labeo rohita (Hamilton) exposed to pesticide mixture. Asian J. Microbiol. Biotechnol. Eng. Sci., 3: 315-319.
  49. Susan, T.A., K. Veeraiah and K.S. Tilak, 1999. Bio-chemical and enzymatic changes in the tissues of Catla catla exposed to the pyrethroid fenvalerate. J. Ecobiol., 11: 109-116.
  50. Susan, T.A., K. Veeraiah and K.S. Tilak, 1999. A study on the bioaccumulation of fenvalerate-a synthetic pyrethroid in the body tissue of L. rohita, C. catla, C. mrigala by gas liquid chromatography. Pollut. Res., 18: 57-59.
  51. Vijayalakshmi, S. and K.S. Tilak, 1996. Effect of pesticides on the gill morphology of Labeo rohita. J. Ecotoxicol. Environ. Monitor., 6: 59-64.
  52. Tilak, K.S., 1991. Acute nitrite toxicity and effect on the three Indian major carps Catla catla (Hamilton), Labeo rohita (Hamilton) and Cirrhinus mrigala (Hamilton) in still-water pond culture. Water Ecol. Manage., 2: 174-188.
  53. Tilak, K.S. and J. Rao, 1991. Toxicity of technical, commercial formulations of four different ratios of endosulfan, malathion and carbofuran to the freshwater fish Labeo rohita(Hamilton). J. Ecotoxicol. Environ. Monitor., 1: 19-22.
  54. Tilak, K.S. and J. Rao, 1991. Effects of pesticides mixed in different ratios to the freshwater fish Labeo rohita (Hamilton). J. Ecotoxicol. Environ. Monitor., 1: 49-52.
  55. Tilak, K.S., 1982. Relative toxicity of carbaryl, 1-naphthol and three formulations of carbaryl to Channa punctata (Bloch). Matsya, 8: 45-47.
  56. Tilak, K.S., D.M. Rao, A.P. Devi and A.S. Murty, 1981. Toxicity of carbaryl and 1-naphthol to four species of freshwater fish. J. Biosci., 3: 457-462.
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  57. Devi, A.P., D.M.R. Rato, K.S. Tilak and A.S. Murty, 1981. Relative toxicity of the technical grade material, isomers and formulations of endosulfan to the fish Channa punctata. Bull. Environ. Contam. Toxicol., 27: 239-243.
    CrossRef  |  Direct Link  |  
  58. Tilak, K.S., D.M.R. Rao, A.P. Devi and A.S. Murty, 1980. Toxicity of carbaryl and 1-naphthol to the freshwater fish Labeo rohita. Indian J. Exp. Biol., 18: 75-76.
  59. Rao, D.M.R., K.S. Tilak and A.S. Murthy, 1978. Contamination of endosulfan formulations with DDT. Pesticides, 12: 34-35.