23 research outputs found
Responses of two poplar species (Populus alba and Populus x canadensis) to high copper concentrations
No full textControl mechanisms of the seasonal changes of activity pattern in ruin lizards: melatonin and the pineal are involved.
No full textExtraretinal photoreceptors can mediate the response of the circadian system to changes in level of constant light in ruin lizards.
No full textLeaf ultrastructure, photosynthetic rate and growth of myrtle plantlets under different in vitro culture conditions
No full textEndogenous control of the seasonal variations of activity patterns in ruin lizards: the role of melatonin and the pineal.
No full textThe role of extraretinal-extrapineal photoreceptors in the circadian system of ruin lizards.
No full textThe Role Of Extraretinal Photoreception In The Circadian System Of The Ruin Lizard Podarcis-Sicula
No full textCombination of parietalectomy, pinealectomy and retinalectomy in the same individual does not prevent Podarcis sicula from obeying Aschoff's rule for diurnal animals. 2. In these operated lizards an increase in intensity of constant illumination (LL) shortens the freerunning period of locomotor rhythms, while a decrease in LL intensity has the opposite effect. 3. These results demonstrate that: (i) extraretinal photoreceptors play a role in mediating parametric effects of light on the circadian system (Aschoff's rule); (ii) extraretinal photoreceptors mediating parametric effects of light lie outside the parietal eve and the pineal
