Skip to main content

UF/IFAS Citrus Research and Education Center

UF/IFAS Citrus Research and Education Center

Publications - Dr. Nabil Killiny

Refereed Publications


Vincent CI, Hijaz F, Pierre M, Killiny N. 2022. Systemic Uptake of Oxytetracycline and Streptomycin in Huanglongbing-Affected Citrus Groves after Foliar Application and Trunk Injection. Antibiotics (Basel). 12;11(8):1092.

Ravanfar, S.A.; Achor, D.S.; Killiny, N.; Shilts, T.; Chen, Y.; El-Mohtar, C.; Stelinski, L.L.; Bonning, B.C.; Orbović, V. Genetic Modification of Bergera koenigii for Expression of the Bacterial Pesticidal Protein Cry1Ba1. Frontiers in Plant Science 2022, 13.

Rashidi M, Killiny N. 2022. In Silico Characterization and Gene Expression Analysis of Toll Signaling Pathway-Related Genes in Diaphorina citri. Insects. 29;13(9):783.

Nehela, Y.; Killiny, N. Not Just a Cycle: Three gab Genes Enable the Non-Cyclic Flux Toward Succinate via GABA Shunt in ‘Candidatus Liberibacter asiaticus’–Infected Citrus. Molecular Plant-Microbe Interactions® 2022, 35, 200-214.

Killiny N, Brodersen CR. 2022. Using X-ray Micro-Computed Tomography to Three-Dimensionally Visualize the Foregut of the Glassy-Winged Sharpshooter, Homalodisca vitripennis. Insects. 7;13(8):710.

Killiny, N.; Jones, S.E.; Gonzalez-Blanco, P. Silencing of δ-aminolevulinic acid dehydratase via virus induced gene silencing promotes callose deposition in plant phloem. Plant Signaling & Behavior 2022, 2024733.

Killiny N. 2022. Generous Hosts: 'Candidatus Liberibacter asiaticus' Growth in Madagascar Periwinkle (Catharanthus roseus) Highlights Its Nutritional Needs. Phytopathology. 112(1):89-100.

Killiny N. 2022. Better together: the use of virus-induced gene silencing technique to repress the expression of two endogenous citrus genes simultaneously. Plant Signal Behav. 31;17(1):2106079.

Killiny, N. Made for Each Other: Vector–Pathogen Interfaces in the Huanglongbing Pathosystem. Phytopathology® 2022, 112, 26-43.

Killiny, N. Silencing Phytoene Desaturase Causes Alteration in Monoterpene Volatiles Belonging to the Methylerythritol Phosphate Pathway. Plants 2022, 11, 276.

Dutt M, Mahmoud LM, Nehela Y, Grosser JW, Killiny N. 2022. The Citrus sinensis TILLER ANGLE CONTROL 1 (CsTAC1) gene regulates tree architecture in sweet oranges by modulating the endogenous hormone content. Plant Sci. 323:111401.


Vincent, C.; Guha, A.; Killiny, N.; Diepenbrock, L. Understory environment promotes photosynthetic efficiency and mitigates severity and function of an introduced, vectored pathosystem: a study of a feral citrus population in central Florida. Trees-Structure and Function 2021, 35, 1711-1725.

Santos-Ortega, Y.; Killiny, N. Silencing of Aquaporin Homologue Accumulates Uric Acid and Decreases the Lifespan of the Asian Citrus Psyllid, Diaphorina citri (Hemiptera: Liviidae). Insects 2021, 12, 931.

Santos-Ortega, Y.; Killiny, N. The Chorion Proteome of Diaphorina citri, the Vector of Huanglongbing Disease in Citrus. Insects 2021, 12, 959.

Nehela, Y.; Killiny, N. Diaphorina citri Genome Possesses a Complete Melatonin Biosynthesis Pathway Differentially Expressed under the Influence of the Phytopathogenic Bacterium, Candidatus Liberibacter asiaticus. Insects 2021, 12.

Killiny, N.; Nehela, Y.; George, J.; Rashidi, M.; Stelinski, L.L.; Lapointe, S.L. Phytoene desaturase-silenced citrus as a trap crop with multiple cues to attract Diaphorina citri, the vector of Huanglongbing. Plant Science 2021, 308, 110930.

Killiny, N.; Gonzalez-Blanco, P.; Gowda, S.; Martini, X.; Etxeberria, E. Plant Functional Genomics in A Few Days: Laser-Assisted Delivery of Double-Stranded RNA to Higher Plants. Plants 2021, 10, 93.

Killiny, N. Generous hosts: Growth of ‘Candidatus Liberibacter asiaticus’ in Madagascar periwinkle (Catharanthus roseus) highlights its nutritional needs. Phytopathology® 2021, 0.

Jones, S.E.; Killiny, N. Influence of Rootstock on the Leaf Volatile Organic Compounds of Citrus Scion Is More Pronounced after the Infestation with Diaphorina citri. Plants 2021, 10, 2422.

Hijaz, F.; Nehela, Y.; Gonzalez-Blanco, P.; Killiny, N. Development of Europium-Sensitized Fluorescence-Based Method for Sensitive Detection of Oxytetracycline in Citrus Tissues. Antibiotics-Basel 2021, 10.

Hijaz, F.; Nehela, Y.; Batuman, O.; Killiny, N. Detection of Oxytetracycline in Citrus Phloem and Xylem Saps Using Europium-Based Method. Antibiotics-Basel 2021, 10

Hijaz, F.; Nehela, Y.; Batuman, O.; Killiny, N. Citrate Mediated Europium-Based Detection of Oxytetracycline in Citrus Tissues. Antibiotics-Basel 2021, 10

Suh, J.H.; Guha, A.; Wang, Z.; Li, S.-Y.; Killiny, N.; Vincent, C.; Wang, Y. Metabolomic analysis elucidates how shade conditions ameliorate the deleterious effects of greening (Huanglongbing) disease in citrus. The Plant Journal 2021, 108, 1798-1814.


Yu, X.D.; Killiny, N. RNA interference-mediated control of Asian citrus psyllid, the vector of the huanglongbing bacterial pathogen. Tropical Plant Pathology 2020, 45, 298-305.

Shilts, T.; El-Mohtar, C.A.; Dawson, W.O.; Killiny, N. Citrus proteins mediate the transmission of Citrus tristeza virus by aphid. Phytopathology 2020, 110, 188-188.

Shilts, T.; El-Mohtar, C.; Dawson, W.O.; Killiny, N. Citrus tristeza virus P33 Protein Is Required for Efficient Transmission by the Aphid Aphis (Toxoptera) citricidus (Kirkaldy). Viruses-Basel 2020, 12.

Santos-Ortega, Y.; Killiny, N. In vitro egg hatching of Diaphorina citri, the vector of Huanglongbing. Entomologia Experimentalis Et Applicata 2020, 168, 851-856.

Nehela, Y.; Killiny, N. Melatonin Is Involved in Citrus Response to the Pathogen Huanglongbing via Modulation of Phytohormonal Biosynthesis. Plant Physiology 2020, 184, 2216-2239.

Nehela, Y.; Killiny, N. The unknown soldier in citrus plants: polyamines-based defensive mechanisms against biotic and abiotic stresses and their relationship with other stress-associated metabolites. Plant Signaling & Behavior 2020, 15.

Nehela, Y.; Killiny, N. Revisiting the Complex Pathosystem of Huanglongbing: Deciphering the Role of Citrus Metabolites in Symptom Development. Metabolites 2020, 10.

Molki, B.; Call, D.R.; Ha, P.T.; Omsland, A.; Gang, D.R.; Lindemann, S.R.; Killiny, N.; Beyenal, H. Growth of ‘Candidatus Liberibacter asiaticus’ in a host-free microbial culture is associated with microbial community composition. Enzyme and Microbial Technology 2020, 142, 109691.

Killiny, N.; Nehela, Y.; Hijaz, F.; Gonzalez-Blanco, P.; Hajeri, S.; Gowda, S. Knock-down of delta-aminolevulinic acid dehydratase via virus-induced gene silencing alters the microRNA biogenesis and causes stress-related reactions in citrus plants. Plant Science 2020, 299.

Killiny, N.; Nehela, Y. Citrus Polyamines: Structure, Biosynthesis, and Physiological Functions. Plants-Basel 2020, 9.

Killiny, N.; Jones, S.E.; Hijaz, F.; Kishk, A.; Santos-Ortega, Y.; Nehela, Y.; Omar, A.A.; Yu, Q.; Gmitter, F.G.; Grosser, J.W., et al. Metabolic Profiling of Hybrids Generated from Pummelo and Citrus latipes in Relation to Their Attraction to Diaphorina citri, the Vector of Huanglongbing. Metabolites 2020, 10, 477.

Killiny, N.; Hijaz, F.; Gonzalez-Blanco, P.; Jones, S.E.; Pierre, M.O.; Vincent, C.I. Effect of Adjuvants on Oxytetracycline Uptake upon Foliar Application in Citrus. Antibiotics-Basel 2020, 9.

Killiny, N. The efficacy of Citrus tristeza virus as a vector for virus induced gene silencing in Huanglongbing-affected citrus. Tropical Plant Pathology 2020, 45, 327-333.

Hijaz, F.; Nehela, Y.; Al-Rimawi, F.; Vincent, C.I.; Killiny, N. The Role of the Xylem in Oxytetracycline Translocation within Citrus Trees. Antibiotics-Basel 2020, 9.

Hijaz, F.; Killiny, N. The use of deuterium-labeled gamma-aminobutyric (D-6-GABA) to study uptake, translocation, and metabolism of exogenous GABA in plants. Plant Methods 2020, 16.

Hijaz, F.; Killiny, N. Evaluation of Oxytetracycline Metabolites Cross-Reactivity with Oxytetracycline Enzyme-Linked Immunosorbent Assay (ELISA). Antibiotics-Basel 2020, 9.

Hijaz, F.; Al-Rimawi, F.; Manthey, J.A.; Killiny, N. Phenolics, flavonoids and antioxidant capacities in Citrus species with different degree of tolerance to Huanglongbing. Plant Signaling & Behavior 2020, 15.

Hassani-Kakhki, M.; Karimi, J.; El Borai, F.; Killiny, N.; Hosseini, M.; Stelinski, L.L.; Duncan, L. Drought Stress Impairs Communication Between Solanum tuberosum (Solanales: Solanaceae) and Subterranean Biological Control Agents. Annals of the Entomological Society of America 2020, 113, 23-29.

Attaran, E.; Berim, A.; Killiny, N.; Beyenal, H.; Gang, D.V.R.; Omsland, A. Controlled replication of 'Candidatus Liberibacter asiaticus' DNA in citrus leaf discs. Microbial Biotechnology 2020, 13, 747-759.


Molki, B.; Thi Ha, P.; Mohamed, A.; Killiny, N.; Gang, D.R.; Omsland, A.; Beyenal, H. Physiochemical changes mediated by "Candidatus Liberibacter asiaticus" in Asian citrus psyllids. Scientific Reports 2019, 9, 16375-16375.

Killiny, N.; Nehela, Y.; Hijaz, F.; Ben-Mahmoud, S.K.; Hajeri, S.; Gowda, S. Citrus tristeza virus-based induced gene silencing of phytoene desaturase is more efficient when antisense orientation is used. Plant Biotechnology Reports 2019, 13, 179-192.

Killiny, N.; Nehela, Y. Abscisic acid deficiency caused by phytoene desaturase silencing is associated with dwarfing syndrome in citrus. Plant Cell Reports 2019, 38, 965-980.

Killiny, N.; Gonzalez-Blanco, P.; Santos-Ortega, Y.; Al-Rimawi, F.; Levy, A.; Hijaz, F.; Albrecht, U.; Batuman, O. Tracing Penicillin Movement in Citrus Plants Using Fluorescence-Labeled Penicillin. Antibiotics 2019, 8, 262.

Killiny, N.; Etxeberria, E.; Flores, A.P.; Blanco, P.G.; Reyes, T.F.; Cabrera, L.P. Laser-induced breakdown spectroscopy (LIBS) as a novel technique for detecting bacterial infection in insects. Scientific Reports 2019, 9.

Killiny, N. Shrink the giant: scale down the citrus tree to a model system to investigate the RNA interference efficiency. Plant Signaling & Behavior 2019, 14.

Killiny, N. Collection of the phloem sap, pros and cons. Plant Signaling & Behavior 2019, 14, 8.

Hijaz, F.; Killiny, N. Exogenous GABA is quickly metabolized to succinic acid and fed into the plant TCA cycle. Plant Signaling & Behavior 2019, 14, e1573096.

Hijaz, F.; Alrimawi, F.; Killiny, N. Intake, distribution, and retainment of the antibiotic oxytetracycline in citrus trees. Abstracts of Papers of the American Chemical Society 2019, 257.

Ha, P.T.; He, R.; Killiny, N.; Brown, J.K.; Omsland, A.; Gang, D.R.; Beyenal, H. Host-free biofilm culture of “Candidatus Liberibacter asiaticus,” the bacterium associated with Huanglongbing. Biofilm 2019, 1, 100005.

Chen, X.D.; Gill, T.A.; Nguyen, C.D.; Killiny, N.; Pelz-Stelinski, K.S.; Stelinski, L.L. Insecticide toxicity associated with detoxification enzymes and genes related to transcription of cuticular melanization among color morphs of Asian citrus psyllid. Insect Science 2019, 26, 843-852.

Al-Rimawi, F.; Hijaz, F.; Nehela, Y.; Batuman, O.; Killiny, N. Uptake, Translocation, and Stability of Oxytetracycline and Streptomycin in Citrus Plants. Antibiotics 2019, 8, 196.


Yu, X.D.; Killiny, N. The secreted salivary proteome of Asian citrus psyllid Diaphorina citri. Physiological Entomology 2018, 43, 324-333.

Yu, X.D.; Killiny, N. Effect of silencing a boule homologue on the survival and reproduction of Asian citrus psyllid Diaphorina citri. Physiological Entomology 2018, 43, 268-275.

Yu, X.D.; Killiny, N. Effect of parental RNA interference of a transformer-2 homologue on female reproduction and offspring sex determination in Asian citrus psyllid. Physiological Entomology 2018, 43, 42-50.

Yu, X.; Killiny, N. RNA interference of two glutathione S-transferase genes, Diaphorina citri DcGSTe2 and DcGSTd1, increases the susceptibility of Asian citrus psyllid (Hemiptera: Liviidae) to the pesticides fenpropathrin and thiamethoxam. Pest Management Science 2018, 74, 638-647.

Santos-Ortega, Y.; Killiny, N. Silencing of sucrose hydrolase causes nymph mortality and disturbs adult osmotic homeostasis in Diaphorina citri (Hemiptera: Liviidae). Insect Biochemistry and Molecular Biology 2018, 101, 131-143.

Nehela, Y.; Killiny, N. Candidatus Liberibacter asiaticus and its vector, Diaphorina citri, augments the TCA cycle of their host via the GABA shunt and polyamines pathway. Molecular Plant-Microbe Interactions 2018.

Nehela, Y.; Killiny, N. Infection with phytopathogenic bacterium inhibits melatonin biosynthesis, decreases longevity of its vector, and suppresses the free radical-defense. Journal of Pineal Research 2018, 65, e12511.

Nehela, Y.; Hijaz, F.; Elzaawely, A.A.; El-Zahaby, H.M.; Killiny, N. Citrus phytohormonal response to Candidatus Liberibacter asiaticus and its vector Diaphorina citri. Physiological and Molecular Plant Pathology 2018, 102, 24-35.

Killiny, N.; Valim, M.F.; Jones, S.E.; Hijaz, F. Effect of different rootstocks on the leaf metabolite profile of 'Sugar Belle' mandarin hybrid. Plant Signaling & Behavior 2018, 13, e1445934.

Killiny, N.; Nehela, Y.; Hijaz, F.; Vincent, C.I. A plant pathogenic bacterium exploits the tricarboxylic acid cycle metabolic pathway of its insect vector. Virulence 2018, 9, 99-109.

Killiny, N.; Jones, S.E.; Nehela, Y.; Hijaz, F.; Dutt, M.; Gmitter, F.G.; Grosser, J.W. All roads lead to Rome: Towards understanding different avenues of tolerance to huanglongbing in citrus cultivars. Plant Physiology and Biochemistry 2018, 129, 1-10.

Killiny, N.; Jones, S.E. Metabolic alterations in the nymphal instars of Diaphorina citri induced by Candidatus Liberibacter asiaticus, the putative pathogen of huanglongbing. PLoS ONE 2018, 13, e0191871.

Killiny, N.; Hijaz, F.; Nehela, Y.; Hajeri, S.; Gowda, S. Effects of δ-aminolevulinic acid dehydratase silencing on the primary and secondary metabolisms of citrus. Plant Direct 2018, 2, e00072-e00072.

Killiny, N. Generous hosts: Why the larvae of greater wax moth, Galleria mellonella is a perfect infectious host model? Virulence 2018, 9, 860-865.

Hijaz, F.; Nehela, Y.; Killiny, N. Application of gamma-aminobutyric acid increased the level of phytohormones in Citrus sinensis. Planta 2018, 248, 909-918.

Hijaz, F.; Nehela, Y.; Jones, S.E.; Dutt, M.; Grosser, J.W.; Manthey, J.A.; Killiny, N. Metabolically engineered anthocyanin-producing lime provides additional nutritional value and antioxidant potential to juice. Plant Biotechnology Reports 2018, 12, 329-346.

Cruz-Munoz, M.; Petrone, J.R.; Cohn, A.R.; Munoz-Beristain, A.; Killiny, N.; Drew, J.C.; Triplett, E.W. Development of Chemically Defined Media Reveals Citrate as Preferred Carbon Source for Liberibacter Growth. Frontiers in Microbiology 2018, 9, 668.

Chen, X.D.; Gill, T.A.; Nguyen, C.D.; Killiny, N.; Pelz-Stelinski, K.S.; Stelinski, L.L. Insecticide toxicity associated with detoxification enzymes and genes related to transcription of cuticular melanization among color morphs of Asian citrus psyllid. Insect Science 2018, 0, 1-10.

Alfaress, S.; Brodersen, C.R.; Ammar, E.-D.; Rogers, M.E.; Killiny, N. Laser surgery reveals the biomechanical and chemical signaling functions of aphid siphunculi (cornicles). PLoS ONE 2018, 13, e0204984.


Killiny, N. (2017). Metabolite signature of the phloem sap of fourteen citrus varieties with different degrees of tolerance to Candidatus Liberibacter asiaticus. Physiological and Molecular Plant Pathology 97, 20-29.

Killiny, N. and Kishk, A. (2017) Delivery of dsRNA through topical feeding for RNA interference in the citrus sap piercing-sucking hemipteran, Diaphorina citri. Insect Biochemistry and Physiology. 95, e21394.

Killiny, N. and Nehela, Y. (2017) Metabolomic response to huanglongbing: Role of carboxylic compounds in citrus response to Candidatus Liberibacter asiaticus and its vector, Diaphorina citri. Molecular Plant-Microbe Interactions. 30, 666–678.

Killiny, N. and Nehela, Y. (2017) One target, two mechanisms: the impact of Candidatus Liberibacter asiaticus and its vector, Diaphorina citri on citrus leaf pigments. Molecular Plant-Microbe Interactions. 30, 543–556.

Killiny, N., and Jones, S.E. (2017). Profiling of volatile organic compounds released from individual intact juvenile and mature citrus leaves. Journal of Plant Physiology 208, 47-51.

Killiny, N., Hijaz, F., Ebert, T., and Rogers, M.E. (2017). Plant bacterial pathogen manipulates the energy metabolism of its insect vector. Applied and Environmental Microbiology 83, e03005-03016.

Killiny, N., Hijaz, F., El-Shesheny, I., Alfaress, S., Jones, S.E., and Rogers, M.E. (2017). Metabolomic analyses of the haemolymph of the Asian citrus psyllid, Diaphorina citri, the vector of huanglongbing. Physiological Entomology, 42, 134–145.

Killiny, N., Hijaz, F., Harper, S.J., and Dawson, W.O. Effects of Citrus tristeza closterovirus infection on phloem sap and released volatile organic compounds in Citrus macrophylla. Physiological and Molecular Plant Pathology. 98, 25-36.

Killiny, N., Nehela, Y., Hijaz, F. and Vincent, C. I. (2017) A plant pathogenic bacterium exploits the tricarboxylic acid cycle metabolic pathway of its insect vector. Virulence.

Killiny, N., Valim, M. F., Jones, S. E., Hijaz, F., Gmitter, F. G. and Grosser, J. W. (2017) Metabolically speaking: reasons behind the tolerance of 'SugarBelle' mandarin hybrid to huanglongbing. Plant Physiology and Biochemisery 116, 36-47.

Kishk, A.A., Anber, H.A, Abdel-Raof, T.K., El-Sherbeni, A.D., Hamed, S., Gowda, S., and Killiny, N. (2017). RNA interference of carboxyesterases cause nymph mortality in the Asian citrus psyllid, Diaphorina citri. Archives of Insect Biochemistry and Physiology 94, e21377.

Lu, Z., Hu, H., and Killiny, N. (2017). Proteomic maps of subcellular protein fractions of the Asian citrus psyllid Diaphorina citri, the vector of citrus huanglongbing. Physiological Entomology. 42, 36-64.

Lu, Z. and Killiny, N. (2017) Huanglongbing pathogen Candidatus Liberibacter asiaticus exploits the energy metabolism and host defence responses of its vector Diaphorina citri. Physiological Entomology.

Martini, X., Hughes, M. A., Killiny, N., George, J., Lapointe, S., Smith, J. A. and Stelinski, L. L. (2017) The Fungus Raffaelea lauricola Modifies Behavior of Its Symbiont and Vector, the Redbay Ambrosia Beetle (Xyleborus Glabratus), by Altering Host Plant Volatile Production. Journal of Chemical Ecology. 43, 519-531.

Valim, M. F. and Killiny, N. (2017) Occurrence of free fatty acids in the phloem sap of different citrus varieties. Plant Signaling and Behavior. PubMed PMID: 28532234.

Yu, X., Gowda, S., and Killiny, N. (2017). Double-stranded RNA delivery through soaking, mediates silencing of the muscle protein 20 and increases mortality to the Asian citrus psyllid, Diaphorina citri. Pest Management Science. PubMed PMID: 28195429.


Alfaress, S., Hijaz, F., and Killiny, N. (2016). Chemical composition of cornicle secretion of the brown citrus aphid Toxoptera citricida. Physiological Entomology 41, 38-47.

El-Borai, F., Killiny, N., and Duncan, L.W. (2016). Concilience in entomopathogenic nematode responses to water potential and their geospatial patterns in Florida. Frontiers in Microbiology 7, 356.

El-Shesheny, I., El-Hawary, I., Mesbah, I., and Killiny, N. (2016a). Comparative proteomic analysis between fifth-instar nymphs and adults of Asian citrus psyllid, Diaphorina citri. Physiological Entomology 41, 162-184.

El-Shesheny, I., Hijaz, F., El-Hawary, I., Mesbah, I., and Killiny, N. (2016b). Impact of different temperatures on survival and energy metabolism in the Asian citrus psyllid, Diaphorina citri Kuwayama. Comparative Biochemistry and Physiology a-Molecular & Integrative Physiology 192, 28-37.

Harper, S.J., Killiny, N., Tatineni, S., Gowda, S., Cowell, S.J., Shilts, T., and Dawson, W.O. (2016). Sequence variation in two genes determines the efficacy of transmission of citrus tristeza virus by the brown citrus aphid. Archives of Virology 161, 3555-3559.

Hijaz, F., and Killiny, N. (2016). A gas chromatography-mass spectrometry method for the determination of delta-aminolevulinic acid in plant leaves. Journal of Chromatography A 1447, 57-63.

Hijaz, F., Lu, Z., and Killiny, N. (2016). Effect of host-plant and infection with 'Candidatus Liberibacter asiaticus' on honeydew chemical composition of the Asian citrus psyllid, Diaphorina citri. Entomologia Experimentalis Et Applicata 158, 34-43.

Hijaz, F., Manthey, J.A., Van Der Merwe, D., and Killiny, N. (2016). Nucleotides, micro- and macro-nutrients, limonoids, flavonoids, and hydroxycinnamates composition in the phloem sap of sweet orange. Plant Signaling & Behavior 11.

Hijaz, F., Nehela, Y., and Killiny, N. (2016). Possible role of plant volatiles in tolerance against huanglongbing in citrus. Plant Signaling & Behavior 11.

Killiny, N. (2016). Generous hosts: What makes Madagascar periwinkle (Catharanthus roseus) the perfect experimental host plant for fastidious bacteria? Plant Physiology and Biochemistry 109, 28-35.

Killiny, N. (2016). Metabolomic comparative analysis of the phloem sap of curry leaf tree (Bergera koenegii), orange jasmine (Murraya paniculata), and Valencia sweet orange (Citrus sinensis) supports their differential responses to Huanglongbing. Plant Signaling & Behavior 11, e1249080

Killiny, N., Harper, S.., Alfaress, S., El Mohtar, C., and Dawson, W.O. (2016). Minor coat and heat shock proteins are involved in the binding of Citrus tristeza virus to the foregut of its aphid vector, Toxoptera citricida. Applied and Environmental Microbiology 82, 6294-6302.

Killiny, N., and Hijaz, F. (2016). The occurrence of non-protein amino acids in the phloem sap of different citrus varieties. Florida State Horticulture Society.129, 45-50.

Killiny, N., and Hijaz, F. (2016). Amino acids implicated in plant defense are higher in Candidatus Liberibacter asiaticus-tolerant citrus varieties. Plant Signaling & Behavior 11, e1171449.

Nehela, Y., Hijaz, F., Elzaawely, A.A., El-Zahaby, H.M., and Killiny, N. (2016). Phytohormone profiling of the sweet orange (Citrus sinensis (L.) Osbeck) leaves and roots using GC-MS-based method. Journal of Plant Physiology 199, 12-17.

Pelz-Stelinski, K.S., and Killiny, N. (2016). Better Together: Association With 'Candidatus Liberibacter asiaticus' increases the reproductive fitness of its insect vector, Diaphorina citri (Hemiptera: Liviidae). Annals of the Entomological Society of America 109, 371-376.


Tiwari, S., Liu, B., Mann, R. S., Killiny, N. and Stelinski, L. L. 2015. Effects of cold-acclimation, pathogen infection, and varying temperatures on insecticide susceptibility, feeding, and detoxifying enzyme levels in Diaphorina citri (Hemiptera: Liviidae). Florida entomologist. 98:870-879.

Killiny, N. and Hijaz F. 2015. Chemical Composition of Xylem Sap from Citrus sinensis L. Osbeck (Sweet Orange). Proceeding of Florida State Horticulture Society. 128:114-118.


Cheng Y, Wang XY, Hu H, Killiny N, Xu JP. A Hypothetical Model of Crossing Bombyx mori Nucleopolyhedrovirus through Its Host Midgut Physical Barrier. PLoS One. 2014 Dec 12;9(12):e115032. eCollection 2014. PubMed PMID: 25502928; PubMed Central PMCID: PMC4264868.

Killiny N, Hajeri S, Tiwari S, Gowda S, Stelinski LL. Double-stranded RNA uptake through topical application, mediates silencing of five CYP4 genes and suppresses insecticide resistance in Diaphorina citri. PLoS One. 2014 Oct 20;9(10):e110536. eCollection 2014. PubMed PMID: 25330026; PubMed Central PMCID: PMC4203802.

Hijaz F, Killiny N. Collection and chemical composition of phloem sap from Citrus sinensis L. Osbeck (sweet orange). PLoS One. 2014 Jul 11;9(7):e101830. eCollection 2014. PubMed PMID: 25014027; PubMed Central PMCID: PMC4094394.

Hajeri S, Killiny N*, El-Mohtar C, Dawson WO, Gowda S. Citrus tristeza virus-based RNAi in citrus plants induces gene silencing in Diaphorina citri, a phloem-sap sucking insect vector of citrus greening disease (Huanglongbing). J Biotechnol. 2014 Apr 20;176:42-9. Epub 2014 Feb 23. PubMed PMID: 24572372.
* Authors contributed equally to this work.

Baccari C, Killiny N, Ionescu M, Almeida RP, Lindow SE. Diffusible signal factor-repressed extracellular traits enable attachment of Xylella fastidiosa to insect vectors and transmission. Phytopathology. 2014 Jan;104(1):27-33. PubMed PMID: 24571393.

Killiny N, Almeida RP. Factors affecting the initial adhesion and retention of the plant pathogen Xylella fastidiosa in the foregut of an insect vector. Appl Environ Microbiol. 2014 Jan;80(1):420-6. Epub 2013 Nov 1. PubMed PMID: 24185853; PubMed Central PMCID: PMC3910991.

Parker JK, Wisotsky SR, Johnson EG, Hijaz FM, Killiny N, Hilf ME, De La Fuente
L. Viability of 'Candidatus Liberibacter asiaticus' prolonged by addition of citrus juice to culture medium. Phytopathology. 2014 Jan;104(1):15-26. PubMed PMID: 23883155.

Killiny, N., Hernandez Martinez, R., Korsi Dumenyo, C., Cooksey, D. A., and Almeida, R.P.P. 2013. The Exopolysaccharide of Xylella fastidiosa is Essential for Biofilm Formation, Plant Virulence and Vector Transmission. Molecular Plant-Microbe interactions. 26: 1044-1053.

Rashed, A., Kwan, J., Baraff, B., Ling, D., Daugherty, M.P., Killiny, N., and Almeida, R.P.P. 2013. Relative susceptibility of Vitis vinifera cultivars to vector-borne Xylella fastidiosa through time. PLoS ONE. 8: e55326.

El-Shesheny, I., Hajeri, S., El-Hawary, I., Gowda, S., Killiny, N. 2013. Silencing abnormal wing disc gene of the Asian citrus psyllid, Diaphorina citri disrupts adult wing development and increases nymph mortality. PLoS ONE. 8: e65392.

Hijaz, F., El-Shesheny, I., and Killiny, N. 2013. Herbivory by the insect Diaphorina citri induces greater change in citrus plant volatile than does by Cadidatus Liberibacter asciaticus. Plant Signaling & Behavior 8: e25677.

Tiwari, S., Killiny, N., and Stelinski L. L. 2013. Dynamic Insecticide Susceptibility Changes in Florida Populations of Diaphorina citri (Hemipetra: Psyllidae). Journal of Economic Entomology. 106: 393-9.

Tiwari, S., Killiny, N., Mann, R. S., Wenninger, E. J. and Stelinski L. L. 2013. Abdominal color of the Asian citrus psyllid, Diaphorina citri, is associated with susceptibility to various insecticides. Pest Management Science. 69: 535-41.

Almeida, R.P.P., Killiny, N., Newman, K.L., Chatterjee, S., Ionescu, M. and Lindow, S.E. 2012. Contribution of rpfB to cell-cell signal synthesis, virulence, and vector transmission of Xylella fastidiosa. Molecular Plant-Microbe Interactions 25: 453-462.

Killiny, N., Rashed, A., and Almeida, R.P.P. 2012. Disrupting the transmission of a vector-borne plant pathogen. Applied and Environmental Microbiology 78: 638-643.

Matsumoto, A., Huston, S. L., Killiny, N. and Igo, M. M. 2012. XatA, an AT-1 autotransporter important for the virulence of Xylella fastidiosa Temecula1. Microbiologyopen. 1:33-45.

Killiny, N. and Almeida, R. P.P. 2011. Gene Regulation Mediates Host Specificity of a Bacterial Pathogen. Environmental Microbiology Reports. 6:791-97.

A. Rashed, N. Killiny, J. Kawn, R. P. P. Almeida. 2011. Background matching behaviour and pathogen acquisition: Plant site preference does not predict the bacterial acquisition efficiency of vectors. Arthropod-Plant Interactions. 597-106.

N. Killiny, S. Prado, and R. P. P. Almeida. 2010. Chitin utilization by the insect--transmitted bacterium Xylella fastidiosaApplied and Environmental Microbiology. 76:6134-40.

S. chattergee*N. Killiny*, R. P. P. Almeida and S. E. Lindow. 2010. Role of Cyclic di-GMP in Xylella fastidiosa Biofilm Formation, Plant Virulence and Insect Transmission. Molecular Plant-Microbe interactions. 23:1356-63. * Authors contributed equally to this work.

N. Killiny and R. P. P. Almeida. 2009. Host structural polysaccharide induces vector transmission of a bacterial plant pathogen. Proceedings of the National Academy of Science.106:22416-20.

N. Killiny and R. P. P. Almeida. 2009. Xylella fastidiosa afimbrial adhesins are associated with cell attachment to leafhopper vectors and transmission to plants. Applied and Environmental Microbiology. 75:521-8

2008 and before
C. Saillard, P. Carle, S. Duret-Nurbel, R. Henri, N. Killiny, S. Carrère, J. Gouzy, J. M. Bové, J. Renaudin and X. Foissac. 2008. x. BMC Genomics. 9:195

N. Killiny, B. Batailler, X. Foissac and C. Saillard 2006.Identification of a Spiroplasma citri hydrophilic protein associated with insect transmissibility Microbiology. 152, 1221-1230.

N. Killiny, M. Castroviejo and C. Saillard. 2005. Spiroplasma citri spiralin acts in vitro as a lectin binding to glycoproteins from its insect vector Circulifer haematoceps. Phytopatholgy. 95: 541-548.