Research Topics
| Marian PlotkinSummaryAffiliation: Tel Aviv University Country: Israel Publications
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Detail Information
Publications
Solar energy harvesting in the epicuticle of the oriental hornet (Vespa orientalis)Marian Plotkin
Department of Physiology and Pharmacology, Sackler Faculty of Medicine Tel Aviv University, Ramat Aviv, 69978, Israel
Naturwissenschaften 97:1067-76. 2010..A dye-sensitized solar cell (DSSC) was constructed in order to show the ability of xanthopterin to serve as a light-harvesting molecule...
Ontogenesis of the thermogenic center in hornetsNatalya Y Ermakov
Department of Physiology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
Microsc Res Tech 70:796-802. 2007..As for the functional, intact hot spot in the adult hornet, it is characterized by a high concentration of tracheae, with numerous mitochondria in between them that probably contribute to the heat generation...- The thermogenic center in social waspsJacob S Ishay
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University Ramat Aviv 69978, Israel
J Electron Microsc (Tokyo) 55:41-9. 2006..These abundant mitochondria are, most probably, the main element of heat production in the thermogenic center... - Prevention of hyperthermia with silk of the oriental hornet, Vespa orientalis: a hypothesisMarian Plotkin
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
Microsc Res Tech 70:69-75. 2007..These finding are discussed from two aspects, namely the importance for wasps to maintain a constant temperature throughout the pupating process, and the manner in which the silk weave contributes to such a goal... - Gravity orientation in social wasp comb cells (Vespinae) and the possible role of embedded mineralsJacob S Ishay
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
Naturwissenschaften 95:333-42. 2008..Ti and Zr are known to reflect infrared (IR) light. IR imaging showed a thermoregulatory center in the dorsal thorax of the adult Oriental hornet. It is not known yet whether these insects can sense IR light... - MRI of oriental hornet headMarian Plotkin
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv Sourasky Medical Center, Tel Aviv University, Ramat Aviv, Israel
Physiol Chem Phys Med NMR 38:43-54. 2006..All the mentioned structures and organs were visualized in their relative, normal proportions, without touching or dislocating them... - Presence of a thermoregulatory hot spot in the prothorax of the large carpenter bee and the bumble beeStanislav Volynchik
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, 69978, Israel
Microsc Res Tech 69:903-12. 2006.... - Some liver functions in the Oriental hornet (Vespa orientalis) are performed in its cuticle: exposure to UV light influences these activitiesMarian Plotkin
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
Comp Biochem Physiol A Mol Integr Physiol 153:131-5. 2009..The fact that hornets link their flight activity with the insolation leads us to speculate that the sun contributes energetically to the hornet's activity... - Xanthopterin in the Oriental hornet (Vespa orientalis): light absorbance is increased with maturation of yellow pigment granulesMarian Plotkin
Department of Physiology and Pharmacology, School of Chemistry, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
Photochem Photobiol 85:955-61. 2009.... - Exposure to an additional alternating magnetic field affects comb building by worker hornetsJacob S Ishay
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, 69978, Israel
Physiol Chem Phys Med NMR 39:83-8. 2007.... - Hornet flight activity and its correlation with UVB radiation, temperature and relative humidityStanislav Volynchik
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
Photochem Photobiol 84:81-5. 2008..We assume that the hornets are able to utilize the UVB radiation, but what part of their body is "absorbing" the UVB energy is still a matter of further investigation... - Antennal and cephalic organelles in the social wasp Paravespula germanica (Hymenoptera, Vespinae): form and possible functionIfaat Agmon
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
Microsc Res Tech 69:46-52. 2006..Conceivably, the wasp uses the various organelles mentioned to communicate with its mates that are some distance away, somewhat like the use of radar by humans... - Electrical properties of hornet silk: temperature dependenceMarian Plotkin
Department of Physiology and Pharmacology, Sackler Faculty of Medicine Tel Aviv University, Ramat Aviv, 69978, Israel
Physiol Chem Phys Med NMR 37:71-84. 2005.... - Some qualitative liver functions in hornet yellow cuticleJacob S Ishay
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv 69978, Israel
Physiol Chem Phys Med NMR 39:269-76. 2007.... - A thermoregulatory center in hornets: IR photographyMarian Plotkin
Department of Physiology and Pharmacology, Sackler Faculty of Medicine Tel Aviv University, Ramat Aviv, 69978, Israel
Microsc Res Tech 68:321-8. 2005..The temperature cascade is most probably regulated via the tracheal system. Apparently another system activated by a heat pump mechanism keeps the gaster at a lower temperature than the environment... - Diazepam inhibits reproduction and reproductive behavior of oriental hornet. A possible role for the peripheral-type benzodiazepine receptorJacob S Ishay
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv, Israel
Physiol Chem Phys Med NMR 38:31-42. 2006..Longevity of hornets was uniform in all the test groups and similar to that in the control... - Cilia in the head of hornets: form and functionJacob S Ishay
Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Ramat Aviv 69978, Israel
Microsc Res Tech 67:71-8. 2005..In summary, ciliary structures are involved in the hornet in gravity sensing, in acoustical communication and in light sensing, i.e., with some similarity with what happens in vertebrates in the inner ear and in the photoreceptor...