Dr. Natraj Krishnan

Title

Associate Professor
Graduate Coordinator

Contact Information

nk260@msstate.edu
Office: 662-325-2978
Clay Lyle Building, Rm 133

Overview

Education

Vidyasagar University, Doctor of Philosophy (PHD), Zoology
Banaras Hindu University, Master of Science (MS), Zoology
University of Burdwan, Bachelor of Science (BS), Zoology

Website

Mississippi Agricultural and Forestry Experiment Station

Publications

Year	Publications
2025	Chen, X., Wang, G., Zang, L., Ali, A., Krishnan, N., Paredes-Montero, J. R., Zhang, W., Keyhani, N. O., Mohamed, A. 2025. Transcriptomic insights on impaired survival and enhanced pesticide susceptibility following knockdown of Syntaxin5 in Locusta migratoria. Pesticide Biochemistry and Physiology 208:106227. Download
2024	Davis, S., Palmer, E., Rai, A., Krishnan, N. 2024. A balancing act: Pan-neuronal over-expression of ataxin1 in Drosophila melanogaster leads to decreased life span and subtle behavioral deficits. Journal of Biological Chemistry 300(3):106859. Download
2024	Palmer, E. M., Snoddy, C. A., York, P. M., Davis, S. M., Hunter, M. F., Krishnan, N. 2024. Enhanced Age-Dependent Motor Impairment in Males of Drosophila melanogaster Modeling Spinocerebellar Ataxia Type 1 Is Linked to Dysregulation of a Matrix Metalloproteinase. . Biology (Basel) 13(11):854. Download
2024	Černý , J., Krishnan, N., Hejníková, M., Štěrbová, H., Kodrík, D. 2024. Modulation of response to braconid wasp venom by adipokinetic hormone in Drosophila melanogaster . Comp Biochem Physiol C Toxicol Pharmacol. Download
2023	Gondim, K. C., Krishnan, N., Damos, P. T., Mohammed, A. A., Mehrabadi, M., Simoes, M. L. 2023. Understanding how the physiology of insect vectors influences vector-borne disease transmission . Frontiers in Physiology 14:1259802. Download
2023	Krishnan, N., Tanaka, T., Fiorito, G., Genta, F. A., Imperadore, P. 2023. Methods and applications in invertebrate physiology . Frontiers in Physiology 14:1158972. . Download
2023	Krishnan, N., Xu, J. 2023. Invertebrates as model organisms: opportunities and challenges in physiology and bioscience research . Frontiers in Physiology 14:1244594. Download
2022	Catchot, B. D., Gore, J., Krishnan, N., Jackson, R. E., Musser, F. 2022. Insecticide resistance monitoring of tarnished plant bug (Hemiptera: Miridae) populations in the mid-southern United States. Journal of Cotton Science 26(1):31-39.
2022	Dvořáček, J., Bednářová, A., Krishnan, N., Kodrik, D. 2022. Dopaminergic mushroom body neurons in Drosophila: flexibility of neuron identity in a model organism?. NeuroScience and Biobehavioral Reviews 135:104570 . Download
2021	Catchot, B. D., Musser, F., Gore, J., Krishnan, N., Cook, D. R., Stewart, S. D., Lorenz, G. M., Brown, S., Seiter, N., Catchot, A. L., Kerns, D. L., Jackson, R., Knighten, K. S. 2021. Sublethal impacts of novaluron on tarnished plant bug, Lygus lineolaris, adults. Jounral of Economic Entomology 114(2):739-746. Download
2021	Hearst, S., Johnson, K., Mills, D., Thomas, C., Scales, J., Bednarova, A., Keenan, E. T., Welcher, J. V., Krishnan, N. 2021. Expression of Drosophila Matrix Metalloproteinases in Cultured Cell Lines Alters Neural and Glial Cell Morphology . Frontiers in Cell and Developmental Biology Download
2021	Whalen, A. D., Catchot, A. L., Gore, J., Stewart, S. D., Lorenz, G. M., Cook, D. R., Musser, F., Harris, J. W., Krishnan, N. 2021. Temporal profile of neonicotinoid concentrations in cotton, corn and soybean resulting from insecticidal seed treatments. Agronomy 11(6):1200. Download
2021	Whalen, A., Catchot, A. L., Gore, J., Stewart, S. D., Lorenz, G. M., Cook, D. R., Musser, F. R., Harris, J. W., Krishnan, N. 2021. Temporal Profile of Neonicotinoid Concentrations in Cotton, Corn, and Soybean Resulting from Insecticidal Seed Treatments. Agronomy 11(6):1200. Download
2020	Bednářová, A., Kropf, M., Krishnan, N. 2020. The surfactant polyethoxylated tallowamine (POEA) reduces lifespan and inhibits fecundity in Drosophila melanogaster- In vivo and in vitro study. Ecotoxicology and environmental safety 188:109883. Download
2020	Catchot, B., Anderson, C. J., Gore, J., Jackson, R., Rakshit, K., Musser, F., Krishnan, N. 2020. Novaluron prevents oogenesis and oviposition by inducing ultrastructural changes in ovarian tissue of young adult Lygus lineolaris . Pest Management Science 76(12):4057-4063. Download
2020	Chaudhuri, A., Johnson, R., Rakshit, K., Bednarova, A., Lackey, K., Chakraborty, S. S., Chaudhuri, A., Krishnan, N. 2020. Exposure to Spectracide® causes behavioral deficits in Drosophila melanogaster: Insights from locomotor analysis and molecular modeling. Chemophere 248. Download
2020	Yue, Z., Krishnan, N., Tseng, T. 2020. Antifeedant effect of sicklepod extract on soybean looper Chrysodeixis includens (Lepidoptera: Noctuidae). Mississippi Academy of Sciences Journal 65(3):293-300. Download
2018	Bednářová, A., Tomčala, A., Mochanová, M., Kodrík, D., Krishnan, N. 2018. Disruption of Adipokinetic Hormone Mediated Energy Homeostasis Has Subtle Effects on Physiology, Behavior and Lipid Status During Aging in Drosophila. Frontiers in physiology 9:949.
2018	Formby, J. P., Rodgers, J. C., Koch, F. H., Krishnan, N., Duerr, D. A., Riggins, J. J. 2018. Cold tolerance strategy and invasive potential of the redbay ambrosia beetle (Xyleborus glabratus) in the eastern United States. . Biological Invasions 20:995-1007. Download
2017	Bednářová, A., Hanna, M. E., Rakshit, K., O'Donnell, J. M., Krishnan, N. 2017. Disruption of dopamine homeostasis has sexually dimorphic effects on senescence characteristics of Drosophila melanogaster. The European journal of neuroscience 45(6):816-825.
2017	Bednářová, A., Hanna, M., Durham, I., VanCleave, T., England, A., Chaudhuri, A., Krishnan, N. 2017. Lost in Translation: Defects in Transfer RNA Modifications and Neurological Disorders. Frontiers in molecular neuroscience 10:135.
2017	Fleming, D. E., Krishnan, N., Musser, F. 2017. Polygalacturonase gene expression and enzymatic activity in salivary glands of laboratory reared and wild populations of Lygus lineolaris (Hemiptera: Miridae). European Journal of Entomology 114:16-24. Download
2016	Adams, A., Gore, J., Catchot, A. L., Musser, F., Cook, D. R., Krishnan, N., Irby, J. T. 2016. Residual and Systemic Efficacy of Chlorantraniliprole and Flubendiamide Against Corn Earworm (Lepidoptera: Noctuidae) in Soybean. Journal of Economic Entomology
2016	Adams, A., Gore, J., Catchot, A. L., Musser, F., Cook, D. R., Krishnan, N., Irby, J. T. 2016. Residual and Systemic Efficacy of Chlorantraniliprole and Flubendiamide Against Corn Earworm (Lipidoptera: Noctuidae) in Soybean. Journal of Economic Entomology 109(6):2411*2417. Download
2016	Adams, A., Gore, J., Catchot, A. L., Musser, F., Cook, D. R., Krishnan, N., Irby, J. T. 2016. Susceptibility of Helicoverpa zea (Lepidoptera: Noctuidae) Neonates to Diamide Insecticides in the Midsouthern and Southeastern United States. Journal of Economic Entomology 109(5):2205-2209. Download
2016	Adams, A., Gore, J., Catchot, A. L., Musser, F., Cook, D. R., Krishnan, N., Irby, J. T. 2016. Susceptibility of Helicoverpa zea (Lepidoptera: Noctuidae) Neonates to Diamide Insecticides in the Midsouthern and Southeastern United States. Journal of Economic Entomology 109(5):2205–2209.
2016	Fleming, D., Musser, F., Catchot, A. L., Krishnan, N. 2016. Susceptibility to insecticides and activities of glutathion S-transferase and esterase in populations of Lygus lineolaris (Hemiptera:Miridae) in Mississippi. Pest Management Science 72(8):1595-1603. Download
2016	Krishnan, N., Giejdasz, K., Fliszkiewicz, M., Bednarova, A. 2016. Reproductive potential and nesting effects of Osmia rufa (syn. bicornis) female (Hymenoptera: Megachilidae). . Journal of Apicultural Science 60(1). Download
2016	Showmaker, K. C., Bednářová, A., Gresham, C. K., Hsu, C. Y., Peterson, D. G., Krishnan, N. 2016. Insight into the Salivary Gland Transcriptome of Lygus lineolaris (Palisot de Beauvois). PloS one 11(1):e0147197.
2015	Bednářová, A., Kodrík, D., Krishnan, N. 2015. Knockdown of adipokinetic hormone synthesis increases susceptibility to oxidative stress in Drosophila--a role for dFoxO?. Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 171:8-14.
2015	Fleming, D. E., Krishnan, N., Catchot, A. L., Musser, F. 2015. Susceptibility to insecticides and activities of glutathione S-transferase and esterase in populations of Lygus lineolaris (Hemiptera: Miridae) in Mississippi. Pest management science
2015	Hanna, M. E., Bednářová, A., Rakshit, K., Chaudhuri, A., O'Donnell, J. M., Krishnan, N. 2015. Perturbations in dopamine synthesis lead to discrete physiological effects and impact oxidative stress response in Drosophila. Journal of insect physiology 73:11-9.
2015	Kodrík, D., Bednářová, A., Zemanová, M., Krishnan, N. 2015. Hormonal Regulation of Response to Oxidative Stress in Insects-An Update. International journal of molecular sciences 16(10):25788-816.
2015	Wasielewski, O., Wojciechowicz, T., Giejdasz, K., Krishnan, N. 2015. Enhanced UV-B radiation during pupal stage reduce body mass and fat content, while increasing deformities, mortality and cell death in female adults of solitary bee Osmia bicornis. Insect science 22(4):512-20.
2014	Vinokurov, K., Bednářová, A., Tomčala, A., Stašková, T., Krishnan, N., Kodrík, D. 2014. Role of adipokinetic hormone in stimulation of salivary gland activities: the fire bug Pyrrhocoris apterus L. (Heteroptera) as a model species. Journal of insect physiology 60:58-67.
2013	Bednářová, A., Kodrík, D., Krishnan, N. 2013. Adipokinetic hormone exerts its anti-oxidative effects using a conserved signal-transduction mechanism involving both PKC and cAMP by mobilizing extra- and intracellular Ca2+ stores. Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 158(3):142-9.
2013	Bednářová, A., Kodrík, D., Krishnan, N. 2013. Nature's Timepiece-Molecular Coordination of Metabolism and Its Impact on Aging. International journal of molecular sciences 14(2):3026-49.
2013	Bednářová, A., Kodrík, D., Krishnan, N. 2013. Unique roles of glucagon and glucagon-like peptides: Parallels in understanding the functions of adipokinetic hormones in stress responses in insects. Comparative biochemistry and physiology. Part A, Molecular & integrative physiology 164(1):91-100.
2013	Formby, J. P., Krishnan, N., Riggins, J. J. 2013. Supercooling in the Redbay Ambrosia Beetle (Coleoptera: Curculionidae). Florida Entomologist 96(4):1530-1540. Download
2013	Formby, J. P., Krishnan, N., Riggins, J. J. 2013. Supercooling in the redbay ambrosia beetle (Coleoptera: Curculionidae). Florida Entomologist 96(4):1530–1540.
2013	Ivanchenko, M. G., den Os, D., Monshausen, G. B., Dubrovsky, J. G., Bednárová, A., Krishnan, N. 2013. Auxin increases the hydrogen peroxide (H2O2) concentration in tomato (Solanum lycopersicum) root tips while inhibiting root growth. Annals of botany 112(6):1107-16.
2012	Fliszkiewicz, M., Giejdasz, K., Wasielewski, O., Krishnan, N. 2012. Influence of winter temperature and simulated climate change on body mass and fat body depletion during diapause in adults of the solitary bee, Osmia rufa (Hymenoptera: Megachilidae). Environmental entomology 41(6):1621-30.
2012	Krishnan, N., Rakshit, K., Chow, E. S., Wentzell, J. S., Kretzschmar, D., Giebultowicz, J. M. 2012. Loss of circadian clock accelerates aging in neurodegeneration-prone mutants. Neurobiology of disease 45(3):1129-35.
2012	Meermeier, N., Krishnan, N. 2012. Circadian regulation of cellular homeostasis--implications for cell metabolism and clinical diseases. Medical hypotheses 79(1):17-24.
2012	Rakshit, K., Krishnan, N., Guzik, E. M., Pyza, E., Giebultowicz, J. M. 2012. Effects of aging on the molecular circadian oscillations in Drosophila. Chronobiology international 29(1):5-14.
2012	Večeřa, J., Krishnan, N., Mithöfer, A., Vogel, H., Kodrík, D. 2012. Adipokinetic hormone-induced antioxidant response in Spodoptera littoralis. Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 155(2):389-95.
2011	Wasielewski, O., Wojciechowicz, T., Giejdasz, K., Krishnan, N. 2011. Influence of methoprene and temperature on diapause termination in adult females of the over-wintering solitary bee, Osmia rufa L. Journal of insect physiology 57(12):1682-8.
2010	Beaver, L. M., Hooven, L. A., Butcher, S. M., Krishnan, N., Sherman, K. A., Chow, E. S., Giebultowicz, J. M. 2010. Circadian clock regulates response to pesticides in Drosophila via conserved Pdp1 pathway. Toxicological sciences : an official journal of the Society of Toxicology 115(2):513-20.
2009	Alquicer, G., Kodrík, D., Krishnan, N., Vecera, J., Socha, R. 2009. Activation of insect anti-oxidative mechanisms by mammalian glucagon. Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology 152(3):226-33.
2009	Krishnan, N., Kodrík, D., Kłudkiewicz, B., Sehnal, F. 2009. Glutathione-ascorbic acid redox cycle and thioredoxin reductase activity in the digestive tract of Leptinotarsa decemlineata (Say). Insect biochemistry and molecular biology 39(3):180-8.
2009	Krishnan, N., Kretzschmar, D., Rakshit, K., Chow, E., Giebultowicz, J. M. 2009. The circadian clock gene period extends healthspan in aging Drosophila melanogaster. Aging 1(11):937-48.
2008	Krishnan, N., Davis, A. J., Giebultowicz, J. M. 2008. Circadian regulation of response to oxidative stress in Drosophila melanogaster. Biochemical and biophysical research communications 374(2):299-303.
2007	Kodrík, D., Krishnan, N., Habustová, O. 2007. Is the titer of adipokinetic peptides in Leptinotarsa decemlineata fed on genetically modified potatoes increased by oxidative stress?. Peptides 28(5):974-80.
2007	Krishnan, N., Kodrík, D., Turanli, F., Sehnal, F. 2007. Stage-specific distribution of oxidative radicals and antioxidant enzymes in the midgut of Leptinotarsa decemlineata. Journal of insect physiology 53(1):67-74.
2007	Krishnan, N., Vecera, J., Kodrík, D., Sehnal, F. 2007. 20-Hydroxyecdysone prevents oxidative stress damage in adult Pyrrhocoris apterus. Archives of insect biochemistry and physiology 65(3):114-24.
2007	Vecera, J., Krishnan, N., Alquicer, G., Kodrík, D., Socha, R. 2007. Adipokinetic hormone-induced enhancement of antioxidant capacity of Pyrrhocoris apterus hemolymph in response to oxidative stress. Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 146(3):336-42.
2007	Vinokurov, K., Taranushenko, Y., Krishnan, N., Sehnal, F. 2007. Proteinase, amylase, and proteinase-inhibitor activities in the gut of six cockroach species. Journal of insect physiology 53(8):794-802.
2006	Krishnan, N., Hyrsl, P., Simek, V. 2006. Nitric oxide production by hemocytes of larva and pharate prepupa of Galleria mellonella in response to bacterial lipopolysaccharide: Cytoprotective or cytotoxic?. Comparative biochemistry and physiology. Toxicology & pharmacology : CBP 142(1-2):103-10.
2006	Krishnan, N., Kodrík, D. 2006. Antioxidant enzymes in Spodoptera littoralis (Boisduval): are they enhanced to protect gut tissues during oxidative stress?. Journal of insect physiology 52(1):11-20.

Extension Publications

Year	Publications
No data available in table

Graduate Students

Madelyn Hunter
Sydney Davis

Awards & Honors

Ottilie Schillig Special Teaching Projects Award
Center for Teaching and Learning, Mississippi State University
William M. White Special Project Awards
DAFVM
Excellence in Teaching: Upper Division -Undergraduate Teaching Award
College of Agriculture and Life Sciences, Mississippi State University
Outstanding Achievement and Service in Entomology to Mississippi
Mississippi Entomological Association
ABRCMS Judges Travel award 2016
ASM and NIGMS (NIH)

Society Memberships

Entomological Society of America
Indian Association for the Cultivation of Science
The Society for Integrative and Comparative Biology