Short Communication Neuronal Feedback in Egg-laying Behaviour of the Pond Snail Lymnaea Stagnalis
نویسندگان
چکیده
منابع مشابه
The Neural Control of Egg-laying Behaviour in the Pond Snail Lymnaea Stagnalis: Motor Control of Shell Turning
Behavioural and neurophysiological techniques were used to study the neuronal control of shell turning during egg-laying in the pond snail Lymnaea stagnalis. Egg-laying consists of three phases: resting, turning and oviposition, and is triggered by an electrical discharge in a group of neuroendocrine cells, the caudodorsal cells. During the discharge, several peptides encoded on two CDCH genes ...
متن کاملEnergy budgets in the simultaneously hermaphroditic pond snail, Lymnaea stagnalis : A trade-off between growth and reproduction during development
Maximum lifetime reproductive success is determined by the optimal partitioning of available resources between growth, maintenance and reproduction. The main question that is addressed here is how this resource allocation occurs in the simultaneously hermaphroditic pond snail, Lymnaea stagnalis. Snails were either reared in groups or in isolation and were fed a standard, restricted amount of le...
متن کاملRole of neuropeptides encoded on CDCH-1 gene in the organization of egg-laying behavior in the pond snail, Lymnaea stagnalis.
Egg laying in the pond snail Lymnaea stagnalis is triggered by a discharge of the neuroendocrine caudodorsal cells (CDCs). The CDCs expresses three different caudorsal cell hormone (CDCH) genes. This gene family expresses, in total, 11 different peptides among which is the ovulation hormone. Besides the CDCs, the CDCH gene family is expressed in other central and peripheral neurons. In this stu...
متن کاملEffect of Male Accessory Gland Products on Egg Laying in Gastropod Molluscs
In internally fertilizing animals, seminal fluid is usually added to the spermatozoa, together forming the semen or ejaculate. Besides nourishing and activating sperm, the components in the seminal fluid can also influence female physiology to augment fertilization success of the sperm donor. While many studies have reported such effects in species with separate sexes, few studies have addresse...
متن کاملThe Effect of Light on Induced Egg Laying in the Simultaneous Hermaphrodite Lymnaea Stagnalis
Reproduction is influenced by many external factors. For egg laying of pond snails, one important trigger is the transfer from dirty, oxygen-poor water to clean, oxygen-rich water. This response is due to the combined effects of elevated oxygen level, chemical water composition and clean substrate. Whether this clean-water stimulus (CWS) resembles the natural egg-laying process has remained unt...
متن کامل