EurekaMag.com logo
+ Translate

Spectral sensitivity in insect calliphoro erythrocephala photoreceptors at a range of temperatures


, : Spectral sensitivity in insect calliphoro erythrocephala photoreceptors at a range of temperatures. Acta Physiologica Scandinavica Supplementum (537): 81-86

The function of the visual receptors of blowflies (Calliphora erythrocephala) was studied using intracellular recording techniques whereby the eye was kept at various temperatures below room temperature. Cooling reduced the response amplitude, decreased the time course and increased the latency. The Q10 [the change in the rate of a process when temperature is increased 10.degree. C] as calculated from different recordings and from various temperature steps was dependent both on the temperature range and the stimulation intensity, although more on the latter. From different kinds of spectral sensitivities of the receptor cells those with a double peak (UV and green) were studied with regard to the effect of the temperature change. A difference was found in the relative sensitivity change of the 2 peaks when the temperature was lowered. The sensitivity in UV remained enhanced in relation to green after cooling. The sensitizing pigment theory, according to which the double peaked spectral sensitivity is explained by assuming a photostable pigment transferring the energy to the photopigment, was supported. This support is valid if the UV sensitivity at room temperature is assumed to be higher, and is limited by the reduced energy transfer to the photopigment caused by the increased mobility of the sensitizing pigment.

(PDF 0-2 workdays service)

Accession: 006459859

Submit PDF Full Text: Here


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Related references

Järvilehto, M.; Weckström, M.; Kouvalainen, E., 1984: Spectral sensitivity in insect photoreceptors at a range of temperatures. The function of the visual receptors of blowflies (Calliphora erythrocephala) was studied using intracellular recording techniques whereby the eye was kept at various temperatures below room temperature. Cooling reduced the response amplitude, dec...

Paul R.; Steiner A.; Gemperlein R., 1986: Spectral sensitivity of calliphora erythrocephala and other insect species studied with fourier interferometric stimulation. 1. A fast action spectrometric method with high resolving power and high reproducibility has been developed: Fourier Interferometric Stimulation (FTS). The method, experimental set-up and application of the new technique on investiations of the sp...

Paul, R.S.einer, A.G.mperlein, R., 1986: Spectral sensitivity of Caliphora erythrocephala and other insect species studied with Fourier Interferometric Stimulation (FIS). Journal of comparative physiology A: Sensory neural and behavioral physiology58(5): 669-680

Menzel R.; Ventura D.F.; Hertel H.; D.S.uza J.M.; Greggers U., 1986: Spectral sensitivity of photoreceptors in insect compounds eyes comparison of species and methods. Three different methods were used to determine the spectral sensitivity of retinula cells in the compound eyes of three species of hymenopteran insects (Apis mellifera, Melipona quadrifasciata, Osmia rufa). The conventional flash method gives the...

Menzel, R.; Ventura, DF.; Hertel, H. de Souza, JM.; Greggers, U., 1986: Spectral sensitivity of photoreceptors in insect compound eyes: comparison of species and methods. Three different methods were used to determine the spectral sensitivity of retinula cells in the compound eyes of three species of hymenopteran insects (Apis mellifera, Melipona quadrifasciata, Osmia rufa). The conventional flash method gives the...

Vishnevskaya T.M.; Shura Bura T.M., 1990: Spectral sensitivity of photoreceptors and spectral inputs to the neurons of the first optic ganglion in the locust locusta migratoria. Gribakin, F G , K Wiese And A V Popov (Ed ) Advances in Life Sciences: Sensory Systems And Communication in Arthropods: Including The First Comprehensive Collection Of Contributions By Soviet Scientists; Symposium, Leningrad, Russian Sfsr, Ussr, October 8-15, 1989 Xviii+423p Birkhaeuser Boston Inc : Secaucus, New Jersey, Usa; Basel, Switzerland Illus 106-112

Vishnevskaya, T.; Shura-Bura, T., 1990: Spectral sensitivity of photoreceptors and spectral inputs to the neuros of the first optic ganglion in the locust (Locusta migratoria). Sensory systems and communication in arthropods: including the first comprehensive collection of contributions by Soviet scientists edited by FG Gribakin et al: 111

Smakman J.G.J.; Van Hateren J.H.; Stavenga D.G., 1984: Angular sensitivity of blowfly calliphora erythrocephala photoreceptors intracellular measurements and wave optical predictions. The angular sensitivity of blowfly photoreceptors was measured in detail at wavelengths .lambda. = 355, 494 and 588 nm. The measured curves often showed numerous sidebands, indicating the importance of diffraction by the facet lens. The shape of t...

Tinbergen J.; Abeln R.G., 1983: Spectral sensitivity of the landing blow fly calliphora erythrocephala. The role of color discrimination in eliciting the landing response of the fly was investigated with rotating linear spiral patterns of different spectral composition. In an alternative procedure the spectral sensitivity was obtained from threshold...

Smola U.; Meffert P., 1979: The spectral sensitivity of the visual cells r 7 and r 8 in the eye of the blow fly calliphora erythrocephala. The spectral sensitivity of the visual receptors R7 and R8 in the eye of C. erythrocephala was determined by intracellular recording. The cells were reliably identified by intracellular marking with Procion yellow. Cells in these 2 morphologically...