Head Sensory Organs of Halobiotus stenostomus (Eutardigrada, Hypsibiidae)

Biserova, N.M.; Kuznetsova, K.G.

Авторы: Biserova N.M., Kuznetsova K.G.
Журнал: Biology Bulletin
Том: 39
Номер: 7
Год издания: 2012
Издательство: M A I K Nauka - Interperiodica
Местоположение издательства: Russian Federation
Первая страница: 579
Последняя страница: 589
DOI: 10.1134/S1062359012070035
Аннотация: The structure and arrangement of sensory organs in the tardigrade Halobiotus stenostomus (Richters 1908) have been studied using transmission and scanning electron microscopy techniques. The sensory organs found on the head of H. stenostomus are as follows: the circumoral sensory field, cephalic papillae, anterolateral and posterolateral sensory fields, and suboral sensory region. Four types of ciliated receptor structures are described in the sensory fields. The lateral sensory fields contain two types of receptor endings, dense and lucent, which differ in the presence or absence of a collar and in the structure of the outer dendrite segment. Two more types of receptor endings, ultrastructurally differing from the lateral sensory field receptors, are located in the suboral sensory region. Receptors with an asymmetric collar have been found, and a receptor ending without a collar is described for the first time in tardigrades. Unlike in other species studied, the sensory organs of H. stenostomus lack the lymph cavity surrounding the outer receptor segment. Similarity and differences in the ultrastructure of receptors between H. stenostomus and other species of Eutardigrada and Heterotardigrada are discussed.
Добавил в систему: Бисерова Наталья Михайловна

	ИСТИНА	Войти в систему Регистрация
	ИПМех РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИПМех РАН

Head Sensory Organs of Halobiotus stenostomus (Eutardigrada, Hypsibiidae)статья

Прикрепленные файлы