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Papers
in refereed journals:
1. Solomon, B., Koppel, R., Hanan, E. and Katzav,
T. (1996). Monoclonal
antibodies inhibition in vitro fibrillar aggregation
of the Alzheimer B-amyloid
peptide. Proc. Natl. Acad. Sci. 93, 452-455.
2. Katzav-Gozansky, T., Hanan, E. and Solomon, B.
(1996). Effect of monoclonal antibodies in preventing
carboxypeptidase A aggregation. Biotechnol. Appl.
Biochem. 23, 227-230.
3. Katzav-Gozansky, T., Soroker,
V., Hefetz, A., Cojocaru, M., Erdmann, D. H. And Francke,
W. (1997). Plasticity
and caste-specific Dufour’s glands secretion in the
honey bee (Apis mellifera L.). Naturwissenschaften.
84, 238-241.
4. Katzav-Gozansky, T., Soroker, V. and Hefetz, A.
(1997). The biosynthesis of Dufour’s gland constituents
in queens of the honeybee (Apis mellifera).
Invertebrate Neuroscience 3, 239-243.
5. Katzav-Gozansky, T., Soroker, V. and Hefetz, A.
(2000). Plasticity
in caste related exocrine secretion biosynthesis in
honey bees. Journal of Insect Physiology 46, 993-998.
6. Katzav-Gozansky, T., Soroker, V., Ionesko, A.,
Robinson, G. E. and Hefetz, A. (2001). Task
related chemical analysis of labial gland secretion
of honey bee workers. Journal of chemical Ecology
27, 919-926.
7. Katzav-Gozansky, T., Soroker, V., Ibarra, F., Francke,
W. and Hefetz, A. (2001). Dufour’s
gland secretion of the queen honey bee: an egg discriminator
pheromone or a queen signal? Behavioral Ecology
and Sociobiology 51, 76-86.
8. Katzav-Gozansky, T., Soroker, V. and Hefetz, A.
(2002). Evolution
of worker sterility in honey bees: Egg-laying workers
express queen-like secretion in Dufour’s gland.
Behavioral Ecology and Sociobiology 51, 588-589.
9. Katzav-Gozansky, T., Soroker, V., and Hefetz, A.
(2002). Honey
Bees Dufour’s gland – idiosyncrasy of a new queen
signal. Apidologie 33, 525-537.
10. Sole, C. L., Kryger, P., Hefetz, A., Katzav-Gozansky,
T., and Crewe, R. M. (2002). Mimicry
of queen Dufour's gland secretion by honeybee workers
of Apis mellifera scutellata and the Apis
mellifera capensis. Naturwissenschaften 89,
561-564.
11. Katzav-Gozansky, T., Soroker, V., and Hefetz,
A. (2003). Honeybee
egg laying workers mimics the queen signal. Insect
Sociaux 50, 20-23.
12. Boulay, R. Katzav-Gozansky, T., Vander Meer R.,
and Hefetz, A. (2003). Queen
effect on worker social motivation and merging of
queenless alien colonies in ants. Proceedings
of the Royal Society of London: Biological Sciences
270, 971-977.
13. Katzav-Gozansky, T., Soroker, V., Kamer, J. and
Schulz, C., Francke, W. and Hefetz, A. (2003) Ultrastructural
and chemical characterization of egg surface of honeybee
worker and queen-laid eggs”, Chemoecology 13,
129-134.
14. Boulay, R., Katzav-Gozansky, T., Hefetz, A., and.
Lenoir A. (2004). Odour
convergence and tolerance between nestmates through
trophallaxis and grooming in Camponotus fellah.
Insect Sociaux 51, 55-61.
15. Katzav-Gozansky, T., Boulay, R., Vander Meer R.,
and Hefetz, A. (2004). In-Nest
environment modulate nestmate recognition in the ant
Camponotus fellah. Naturwissenschaften
91, 186-190.
16. Katzav-Gozansky, T., Boulay, R., Soroker, V.,
and Hefetz. Queen-signal modulation of worker pheromonal
composition in honeybees. In Press the Proceedings
of the Royal Society of London: Biological Sciences.
Chapters and proceedings:
1. Solomon, B., Katzav-Gozansky, T., Koppel, R. and
Hanan-Aharon, E. (1998). Activity of monoclonal antibodies
in prevention of in vitro aggregation of their antigens,
in: Stability and stabilization of biocatalysts. Ballesreros,
A., Plou, F. J., Iborra, L. J. And Halling, (eds.),
Elsevier Science. 15, 183-189.
2. Katzav-Gozansky, T., Soroker, V., Hefetz, A. (1999).
Social modulation of pheromone biosynthesis in honey
bee Dufour’s gland: A component in the arm race between
queens and workers? Proceedings of the 36th international
congress of Apimondia, 208-209.
3. Hefetz, A. and Katzav-Gozansky, T. Are multiple
honeybee queen pheromones indicators for a queen-worker
arms race? Proceedings of the 38th international congress
of Apimondia
Publications in Hebrew:
1. Katzav-Gozansky, T., Soroker, V., Effrat, H., Kamer,
J. and Hefetz, A. (2001). Honey Bees Dufour’s gland
– a new queen signal. Yalkot Hamichveret, 44, 103-114
2. Katzav-Gozansky, T. (2002/2003). Pheromonal mimicry
of the Cape honey bee (Apis mellifera capensis) enables
social parasitism in the African Honey bee (Apis
mellifera scutellata). Yalkot Hamichveret 45,
64-72
3. Katzav-Gozansky, T. Honeybee communication, in:
Livestock Rearing, Gutvain E. (ed.) The Israeli ministry
of education (in press).
Submitted:
1. Katzav-Gozansky, T. and Hefetz A. The evolution
of multiple honeybee queen pheromones - consequence
of a queen-worker arms race? Submitted to Biology
Letters.
2. Dor R., Katzav-Gozansky, T. and Hefetz A Dufour's
gland pheromone as a reliable signal for reproductive
dominance among workers honeybee (Apis mellifera).
Submitted to the Proc. Natl. Acad. Sci.
Abstracts:
1. Hefetz, A., Katzav, T. and Soroker, V. (1998).
Caste specificity of Dufour’s gland secretion and
its regulation in the honey bee (Apis mellifera).
Phytoparasitica 26, 2.
2. Katzav-Gozansky, T., Soroker, V., Hefetz, A., Cojocaru,
M., Erdmann, D. H. And Francke, W. (1999). Plasticity
and caste-specific Dufour’s glands secretion in the
honey bee (Apis mellifera L.). Apicultural
Abstracts .50, 126
3. Soroker, V., Katzav-Gozansky, T. and Hefetz, A.
(2000). Is
Dufour’s gland secretion an egg marking pheromone
or a queen signal in honeybees? Phytoparasitica
28, 4.
4. Katzav-Gozansky, T., Boulay, R., Hefetz, A. (2003).
Social
environment and nest volatiles underlying nestmate
recognition in the Carpenter ant Camponotus fellah.
Phytoparasitica 31, 3.
5. Dor, R., Katzav-Gozansky, T., Hefetz, A. (2003).
Reproductive
dominance and caste-specific pheromones in the honeybee
(Apis mellifera). Phytoparasitica 31,
3.
6. Sharon S., Katzav-Gozansky, T., Hefetz, A. (2003).
Effect
of octopamine administration on the behavior of ant
Camponotus fellah. Phytoparasitica 31, 3.
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My
research interests mainly concentrate on chemical
communication, insects' behavior, and the physiological
nature and evolutionary mechanisms involved in these
processes. I am working on aspects of pheromonal regulation
of insect behavior, in particularly with reference
to social communication. The study of social insects
is fascinating because complex colony behaviors arise
from a collection of simple, individual behaviors.
This special system can open the way to gap the knowledge
between behavior (both individual and society levels),
genes, physiological processes, and the evolution
of the social traits. The physiology of the individual
colony member is not remarkably different from that
of solitary insects, however because of its eusocial
behavior there is actually a ”group physiology” that
is very different from that shown by isolated individuals.
The “colony physiology” actually modulates the behavior
of the individuals. The colony has no central nervous
control, but rather is regulated chemically by volatile
chemical, pheromones, released by the colony members
(queen, workers and brood). All these genetic determined
processes along with the endocrine and pheromonal
regulation result in the harmonious life of these
insects.