Reproduction of trematodes in the molluscan host: an ultrastructural study of the germinal mass and brood cavity in daughter rediae of Tristriata anatis Belopolskaia, 1953 (Digenea: Notocotylidae)

Результат исследований: Научные публикации в периодических изданияхстатьянаучнаярецензирование

Выдержка

This study describes the fine structure of the germinal mass in daughter rediae of Tristriata anatis. The germinal mass consists of undifferentiated cells, germinal cells and supporting cells and contains numerous cercarial embryos up to tail bud stage. Supporting cells and their outgrowths form a tight meshwork of the germinal mass. In its basal part this meshwork serves as scaffolding for undifferentiated and germinal cells, naked cell aggregates and early germinal balls. More mature embryos are located apically. The hypertrophied supporting tissue appears to be involved in an intensive transport of substances, as indicated by abundant gap junctions between cell outgrowths and numerous pinocytotic vesicles and microtubules in their cytoplasm. Germinal cells contain annulate lamellae and the nuage, typical organelles of animal oocytes. In young rediae containing embryonic cercariae at the tail bud stage, the supporting tissue starts to degenerate in the apical part of the germinal mass, and a primordial brood cavity emerges though it develops fully only in mature rediae containing late embryonic cercariae. An unusual feature of the germinal mass in T. anatis rediae is an enhancement of the embryo brooding function. At the same time, the performance of this function by the brood cavity is reduced. This is the first time such a redistribution of the embryo brooding function between the germinal mass and the brood cavity has been reported.
Язык оригиналаанглийский
Страницы (с-по)2643–2652
Число страниц10
ЖурналParasitology Research
Том117
Номер выпуска8
DOI
СостояниеОпубликовано - 10 июн 2018

Ключевые слова

  • Tristriata anatis, reproduction of redia, ultrastructure, germinal mass, germinal cell, brood cavity

Предметные области Scopus

  • Науки об окружающей среде (все)

Цитировать

@article{9776c6c8aebf42feaaf99ed635dbbaeb,
title = "Reproduction of trematodes in the molluscan host: an ultrastructural study of the germinal mass and brood cavity in daughter rediae of Tristriata anatis Belopolskaia, 1953 (Digenea: Notocotylidae)",
abstract = "This study describes the fine structure of the germinal mass in daughter rediae of Tristriata anatis. The germinal mass consists of undifferentiated cells, germinal cells and supporting cells and contains numerous cercarial embryos up to tail bud stage. Supporting cells and their outgrowths form a tight meshwork of the germinal mass. In its basal part, this meshwork serves as scaffolding for undifferentiated and germinal cells, naked cell aggregates and early germinal balls. More mature embryos are located apically. The hypertrophied supporting tissue appears to be involved in an intensive transport of substances, as idicatedby abundant gap junctions between cell outgrowths and numerous pinocytotic vesicles and microtubules in their cytoplasm. Germinal cells contain annulate lamellae and the nuage, typical organelles of animal oocytes. In young rediae containing embryonic cercariae at the tail bud stage, the supporting tissue starts to degenerate in the apical part of the germinal mass, and a primordial brood cavity emerges though it develops fully only in mature rediae containing late embryonic cercariae. An unusual feature of the germinal mass in T. anatis rediae is an enhancement of the embryo brooding function. At the same time, theperformance of this function by the brood cavity is reduced. This is the first time such a redistribution of the embryo brooding function between the germinal mass and the brood cavity has been reported.",
keywords = "Tristriata anatis, reproduction of redia, ultrastructure, germinal mass, germinal cell, brood cavity, Tristriata anatis . Reproduction of redia . Ultrastructure . Germinal mass . Germinal cell . Brood cavity",
author = "Ирина Подвязная and Галактионов, {Кирилл Владимирович}",
year = "2018",
month = "6",
day = "10",
doi = "https://doi.org/10.1007/s00436-018-5956-x",
language = "English",
volume = "117",
pages = "2643–2652",
journal = "Parasitology Research",
issn = "0932-0113",
publisher = "Springer",
number = "8",

}

Reproduction of trematodes in the molluscan host: an ultrastructural study of the germinal mass and brood cavity in daughter rediae of Tristriata anatis Belopolskaia, 1953 (Digenea: Notocotylidae). / Подвязная, Ирина; Галактионов, Кирилл Владимирович.

В: Parasitology Research, Том 117, № 8, 10.06.2018, стр. 2643–2652.

Результат исследований: Научные публикации в периодических изданияхстатьянаучнаярецензирование

TY - JOUR

T1 - Reproduction of trematodes in the molluscan host: an ultrastructural study of the germinal mass and brood cavity in daughter rediae of Tristriata anatis Belopolskaia, 1953 (Digenea: Notocotylidae)

AU - Подвязная, Ирина

AU - Галактионов, Кирилл Владимирович

PY - 2018/6/10

Y1 - 2018/6/10

N2 - This study describes the fine structure of the germinal mass in daughter rediae of Tristriata anatis. The germinal mass consists of undifferentiated cells, germinal cells and supporting cells and contains numerous cercarial embryos up to tail bud stage. Supporting cells and their outgrowths form a tight meshwork of the germinal mass. In its basal part, this meshwork serves as scaffolding for undifferentiated and germinal cells, naked cell aggregates and early germinal balls. More mature embryos are located apically. The hypertrophied supporting tissue appears to be involved in an intensive transport of substances, as idicatedby abundant gap junctions between cell outgrowths and numerous pinocytotic vesicles and microtubules in their cytoplasm. Germinal cells contain annulate lamellae and the nuage, typical organelles of animal oocytes. In young rediae containing embryonic cercariae at the tail bud stage, the supporting tissue starts to degenerate in the apical part of the germinal mass, and a primordial brood cavity emerges though it develops fully only in mature rediae containing late embryonic cercariae. An unusual feature of the germinal mass in T. anatis rediae is an enhancement of the embryo brooding function. At the same time, theperformance of this function by the brood cavity is reduced. This is the first time such a redistribution of the embryo brooding function between the germinal mass and the brood cavity has been reported.

AB - This study describes the fine structure of the germinal mass in daughter rediae of Tristriata anatis. The germinal mass consists of undifferentiated cells, germinal cells and supporting cells and contains numerous cercarial embryos up to tail bud stage. Supporting cells and their outgrowths form a tight meshwork of the germinal mass. In its basal part, this meshwork serves as scaffolding for undifferentiated and germinal cells, naked cell aggregates and early germinal balls. More mature embryos are located apically. The hypertrophied supporting tissue appears to be involved in an intensive transport of substances, as idicatedby abundant gap junctions between cell outgrowths and numerous pinocytotic vesicles and microtubules in their cytoplasm. Germinal cells contain annulate lamellae and the nuage, typical organelles of animal oocytes. In young rediae containing embryonic cercariae at the tail bud stage, the supporting tissue starts to degenerate in the apical part of the germinal mass, and a primordial brood cavity emerges though it develops fully only in mature rediae containing late embryonic cercariae. An unusual feature of the germinal mass in T. anatis rediae is an enhancement of the embryo brooding function. At the same time, theperformance of this function by the brood cavity is reduced. This is the first time such a redistribution of the embryo brooding function between the germinal mass and the brood cavity has been reported.

KW - Tristriata anatis, reproduction of redia, ultrastructure, germinal mass, germinal cell, brood cavity

KW - Tristriata anatis . Reproduction of redia . Ultrastructure . Germinal mass . Germinal cell . Brood cavity

U2 - https://doi.org/10.1007/s00436-018-5956-x

DO - https://doi.org/10.1007/s00436-018-5956-x

M3 - Article

VL - 117

SP - 2643

EP - 2652

JO - Parasitology Research

JF - Parasitology Research

SN - 0932-0113

IS - 8

ER -