|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
The brain structure of selected trypanorhynch tapewormsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 13 января 2021 г.
- Авторы: Biserova NM, Korneva JV, Polyakova TA
- Журнал: Journal of Morphology
- Том: 281
- Номер: 7
- Год издания: 2020
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- Первая страница: 1
- Последняя страница: 21
- DOI: 10.1002/jmor.21145
- Аннотация: AbstractThe brain architecture in four species of tapeworms from the order Trypanorhyncha has been studied. In all species, the brain consists of paired anterior and lateral lobes, and an unpaired central lobe. The anterior lobes connect by dorsal and ventral semicircular commissures; the central and lateral lobes connect by a median and an X‐shaped crisscross commissure. In the center of the brain, five well‐developed compact neuropils are present. The brain occupies a medial position in the scolex pars bothriali s. The ventral excretory vessels are situated outside the lateral lobes of the brain; the dorsal excretory vessels are located inside the brain and dorsal to the median commissure. The brain gives rize four anterior proboscis nerves and four posterior bulbar nerves with myelinated giant axons (GAs). The cell bodies of the GAs are located within the X‐commissure and in the bulbar nerves. Highly developed serotonergic neuropils are present in the anterior and lateral lobes; numerous 5‐HT neurons are found in the brain lobes including the central unpaired lobe. The X‐cross commissure consists of the α‐tub‐immunoreactive and 5‐HT‐IR neurites. Eight ultrastructural types of neurons were found in the brain of the three species investigated. In addition, different types of synapses were present in the neuropils. Glial cells ensheath the brain lobes, the neuropils, the GAs, and the bulbar nerves. Glia cell processes form complex branching patterns of thin cytoplasmic sheets sandwiched between adjacent neural processes and filling the space between neurons. Multilayer myelin‐like envelopes and a mesaxon‐like structure have been found in Trypanorhyncha nervous system. We compared the brain architecture of Trypanorhyncha with that of an early basal cestode taxon, that is, Diphyllobothriidea, and present a hypothesis about the homology of the anterior brain lobes in order Trypanorhyncha; and the lateral lobes and median commissure are homologous brain structures within Eucestoda.https://onlinelibrary.wiley.com/doi/full/10.1002/jmor.21145
- Добавил в систему: Бисерова Наталья Михайловна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Иллюстрация | grafical_abstract1_letter.tif | 25,6 МБ | 1 июля 2020 [nbiserova] | |
| 2. | Полный текст | 2020_Biserova_et_al-JMOR.pdf | 23,1 МБ | 12 января 2021 [nbiserova] |