1992: Ph.D. Natural Sciences (Parasitology), National University of
La Plata, Argentina.
1985: BS, Zoology, University of La Plata, Argentina.
My research interest is biodiversity of insect-parasitic and pathogenic nematodes and their role in ecosystem function. I am actively engaged in biotic survey and inventory projects in different geographic regions of the world, which allow me to make significant contributions toward the discovery of new species, the understanding of the ecology and behavior of insect-parasitic nematodes and their consideration in biological control and integrated pest management programs. Additionally, I am interested in studying the ecology and genetics of nematode populations from agricultural and natural ecosystems, particularly the study of host-parasite relationships and interactions (including plant and insect-parasitic nematodes), such as phoresis, facultative, obligate parasitism, and pathogenesis. A new research area in our program focuses on the study of Steinernema nematodes and their bacterial symbionts (Xenorahbdus spp.) as models for understanding mutualistic interactions between animals and microbes. Current research relates to the study of structural and developmental features of the bacterial receptacle in the nematode hosts to better understand the colonization process. We are also interested in recognizing the chemical signals and physical interactions that occur between the nematode and their symbionts and how these interactions might affect each organism. Furthermore, we also investigate evolutionary histories of both nematode and bacterial symbionts considering a multigene repertoire and study co-evolutionary histories and diversification of these two partners.
Gassmann A, Stock SP, Sisterson MS, Carrière Y, Tabashnik B. 2008. Synergism between entomopathogenic nematodes and Bt crops: integrating control and resistance management. Journal of Applied Ecology In Press.
Lopez-Nuñez JC, Plichta K., Gongora-Botero CE, Stock SP. 2008. A new entomopathogenic nematode, Steinernema colombiense n. sp. (Nematoda: Steinernematidae) from Colombia. Nematology In Press.
Stock SP Goodrich-Blair H. 2008. Nematode-Bacterium Symbioses: Crossing
Kingdom and Disciplinary Boundaries. Symbiosis In Press.
Stock SP Goodrich-Blair H. 2008. Entomopathogenic nematodes and their bacterial symbionts: the inside out of a mutualistic association. Symbiosis In Press.
Stock SP, Al. Banna L, Darwish R, Katbeh A. 2008. Diversity and
distribution of entomopathogenic nematodes (Nematoda: Steinernematidae, Heterorhabditidae) and their bacterial symbionts (c-Proteobacteria: Enterobacteriaceae) in Jordan. Journal of Invertebrate Pathology In Press.
Emelianoff V, Le Brun N, Pagès, Stock SP, Tailliez P, Moulia C, Sicard M. 2008. Isolation and identification of entomopathogenic nematodes and their symbiotic bacteria from Hérault and Gard (Southern France). Journal of Invertebrate Pathology In Press.
Snyder H, Stock SP, Flores-Lara Y, Kim SK, Forst S. 2007. New insights into the colonization and release process of Xenorhabdus nematophila and the morphology and ultrastructure of the bacterial receptacle of its nematode host, Steinernema carpocapsae. Applied Environmental Microbiology 73: 5338-5346 .
Uribe-Lorio L, Mora M, and Stock SP. 2007. Steinernema costaricense n. sp.
and Steinernema puntauvense n.sp. (Rhabditida, Steinernematidae), two new entomopathogenic nematodes from Costa Rica. Systematic Parasitology 68: 167-172.
Simard L, Belair G, Stock SP, Mauleon H, Dionne J. 2007. Natural occurrence of entomopathogenic (Rhabditidae, Steinernematidae) on golf courses in eastern Canada. Nematology 9: 325-332.
Lopez-Nuñez JC, Cano L, Gongora-Botero CE, Stock SP. 2007. Diversity and evolutionary relationships of entomopathogenic nematodes (Steinernematidae and Heterorhabditidae) from the central Andean region of Colombia. Nematology 9: 333-341.
Flores-Lara Y, Renneckar D, Forst S, Goodrich-Blair H, Stock SP. 2007. Influence of nematode age and culture conditions on morphological and physiological parameters in the bacterial receptacle of Steinernema carpocapsae (Nematoda, Steinernematidae). Journal of Invertebrate Pathology 95: 110-118.
Stock SP, Gress JC. 2006. Diversity and phylogenetic relationships of entomopathogenic nematodes (Steinernematidae and Heterorhabditidae) from the Sky Islands of southern Arizona. Journal of Invertebrate Pathology 92 (2): 66-72.
Adams BJ, Fodor A, Koppenhofer HS, Stackebrandt E, Stock SP, Klein MG. 2006. Biodiversity and systematics of nematode-bacterium entomopathogens (vol 37, pg 32-49, 2006). Biological Control 38 (1): 4-21.
Gassmann AJ, Stock SP, Carriere Y, Tabashnik BE.
2006. Effect of entomopathogenic nematodes on the fitness cost of
resistance to Bt toxin Cry1Ac in pink bollworm (Lepidoptera : Gelechiidae).
Journal of Economic Entomology 99 (3): 920-926.
Nadler SA, Bolotin E, Stock SP. 2006. Phylogenetic
relationships of Steinernema Travassos, 1927 (Nematoda :
Cephalobina : Steinernematidae) based on nuclear, mitochondrial and
morphological data. Systematic Parasitology 63 (3): 161-181.
Adams BJ, Fodor A, Koppenhofer HS, Stackebrandt E, Stock
SP, Klein MG. 2006. Biodiversity and systematics of nematode-bacterium
entomopathogens. Biological Control 37 (1): 32-49.
Stock, S. P. 2005. Insect parasitic nematodes: from
lab curiosities to model organisms. J. Invert. Pathol. 89:
57-66.
Uribe-Lorio, L., Mora, M. Stock, S. P. 2005. First
record of entomopathogenic nematodes (Steinernematidae and Heterorhabditidae)
in Costa Rica. J. Invert. Pathol. 88: 226-231.
Stock, S. P. and Hunt, D. J. 2005. Nematode Morphology
and Systematics. In: Grewal, P. S., Ehlers, R. U. and Shapiro-Ilan,
D. I. (eds.) Nematodes as Biological Control Agents. CAB International
Publishing. pp 3-43.
Hubbard, J. E. Schmitt, M. McClure, M. A., Stock, S. P. and
Hawes, M. C. 2005. Increased penetration of host roots after recovery
from root-exudate-induced quiescence. Nematology 7: 321-331.
Stock, S. P., Caicedo, A. M. and Calatayud, P. A.
2005. Rhabditis (Oscheius) colombiana n.
sp. (Nematoda: Rhabdtidae) a necromenic associate of the subterranean
burrower bug Cyrtomenus bergi (Hemiptera: Cydnidae) in the
Cauca Valley, Colombia. Nematology 7: 363-373.
S. A. Nadler, P. De Ley, M. Mundo-Ocampo, A. B. Smythe, S.
P. Stock, D. Bumbarger, B. J. Adams, I. T. De Ley, O. Holovachov,
J. G. Baldwin. 2005. Phylogeny of Cephalobina (Nematoda):
Molecular evidence for substantial phenotypic homoplasy and incongruence
with traditional classifications. J. Nematology (In Press)
Stock, S. P. Griffin, C. T. and Chaenari, R. 2004.
Morphological and molecular characterization of Steinernema hermaphroditum
n. sp. (Nematoda: Steinernematidae), an entomopathogenic nematode
from Indonesia, and its phylogenetic relationship with other closely
related taxa. Nematology 6: 401-412.
Hazir, S., Kaya, H.K, Stock, S.P. and Keskin, N.
2003. Entomopathogenic nematodes (Steinernematidae and Heterorhabditidae)
for biological control of soil pests. Turkish Journal of Biology
27; 181-202.
Cutler, C. G. and Stock, S. P. 2003. Steinernema
websteri n. sp. (Rhabditida: Steinernematidae), a new entomopathogenic
nematode from China. Nematologia Mediterranea 31: 215-224.
Campbell, J. F., Lewis, E. E., Stock, S. P., Nadler,
S. A. and H. K. Kaya. 2003. Evolution of host search strategies in
entomopathogenic nematodes (Nematoda: Steinernematidae). Journal
of Nematology 35: 142-145
Stock, S. P. and Reid, A. P. 2003. Biosystematics
of entomopathogenic nematodes (Steinernematidae, Heterorhabditidae):
current status and future directions. In: Cook, R. & Hunt, D.J.
(Eds). Proceedings of the Fourth International Congress of Nematology,
8 - 13 June 2002, Tenerife, Spain. Nematology Monographs and Perspectives
2, 435-446.
