Summary
The organization of the female genital apparatus of the bdelloid rotifer Philodina roseola was analyzed by light and electron microscopy. It differs from that of the monogononts in several respects: the gonad is paired; in each gonad, the follicular layer completely surrounds the syncytial vitellarium and the cluster of ovocytes; the cytoplasmic bridges between the vitellarium and the immature ovocytes exist but are much narrower; a specialized junction (5–8 nm intercellular space) is established between the follicular layer and the whole area of the germo-vitellarium complex. Preliminary observations about the movements of organelles during ovogenesis were made at an ultrastructural level.
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References
Amsellem J, Clement P (1980) A simplified method for the preparation of rotifers for transmission and scanning electron microscopy. Hydrobiologia 73:119–122
Anderson E (1969) Oocyte-follicle cell differentiation in two species of Amphineurans (Mollusca), Mopalia mucosa and Chaetopleura apiculata. J Morphol 129:89–126
Beauchamp P de (1965) Classe des Rotifères in Grasse PP (Dir) Traité de Zoologie, Anatomie, Systématique, Biologie, Vol IV, part 3. Masson, Paris, pp 1225–1379
Bentfeld ME (1971a) Studies of oogenesis in the rotifer Asplanchna I. Fine structure of the female reproductive system. Z Zellforsch Mikrosk Anat 115:165–183
Bentfeld ME (1971b) Studies of oogenesis in the rotifer Asplanchna II. Oocyte growth and development. Z Zellforsch Mikrosk Anat 115:184–195
Birky CW, Field B (1966) Nuclear number in the rotifer Asplanchna: intraclonal variation, and environmental control. Science 151:585–587
Birky CW, Zito Bignami R, Bentfeld MJ (1967) Nuclear and cytoplasmic DNA synthesis in adult and embryonic rotifers. Biol Bull 133, 3:502–509
Brakenhoff H (1937) Zur Morphologie der Bdelloidea. Zool Jahrb 63:125–182
Clement P (1977a) Introduction `a la photobiologie des Rotifères dont le cycle reproducteur est contrôlé par la photopériode. Approches ultrastructurale et expérimentale. Thèse Doctorat d'Etat es Sciences no 7716 Université Claude Bernard (Lyon I)
Clement P (1977b) Ultrasturctural research on rotifers. Arch Hydrobiol Beih Ergebn Limnol 8:270–297
Clement P (1980) Phylogenetic relationships of rotifers, as derived from photoreceptor morphology and other ultrastructural analyses. Hydrobiologia 73:93–117
Clement P, Pourriot R (1979) Influence de l'âge des grands parents sur l'apparition des mâles chez le rotifère Notommata copeus Rhr. Intern J Invert Repr 1:89–98
Clement P, Pourriot R (1980) About a transmissible influence through several generations in a clone of the rotifer Notommata copeus Ehr. Hydrobiologia 73:27–31
Coggeshall RE (1970) A cytologic analysis of the bag cell control of egg laying in Aplysia. J Morphol 132:461–486
Garel JP, Daillie J, Legay JM (1979) Le ver à soie. Recherche 106:1222–1231
Herold RC, Meadow ND (1970) Age-related changes in ultrastructure and histochemistry of rotiferan organs. J Ultrastr Res 33:203–218
Hsu WS (1956) Oogenesis in the Bdelloid rotifer Philodina roseola Ehr. Cellule 57:283–296
Hyman LH (1951) Class Rotifer in The invertebrates Vol 3. Mc Graw-Hill, New York Toronto London, pp 59–151
Jones PhA, Gilbert JJ (1977) Polymorphism and polyploidy in the rotifer Asplanchna sieboldi: relative nuclear DNA contents in tissues of saccate and campanulate females. J Exp Zool 201, 2:163–168
King CE (1969) Review article. Experimental studies of ageing in Rotifers. Exp Gerontol 4:63–79
King CE, Miracle MR (1980) A perspective on aging in Rotifers. Hydrobiologia 73:13–19
Lansing AI (1947) A transmissible cumulative and reversible factor in ageing. J Gerontol 2:228–239
Lansing AI (1954) A non genic factor in the longevity of Rotifers. Ann NY Acad Sci 57:455–464
Mahowald AP (1972) Oogenesis in developmental systems: Insects, Vol I. Academic Press, New York, pp 1–47
Noirot C, Noirot-Timothee C (1967) Un nouveau type de jonction intercellulaire (zonula continua) dans l'intestin moyen des Insectes. C R Acad Sc Paris 264:2796–2798
Oschman JL, Wall BJ (1972) Calcium binding to intestinal membranes. J Cell Biol 55:58
Remane A (1929–1933) Rotatoria. In: Bronn's Klassen und Ordnungen des Tier-Reichs IV (Vermes) 2 (Aschelminthes) 1 (Rotatorien, Gastrotrichen und Kinorhynchen) 3:1–448
Ricci C (1976) Nota preliminare sull'allevamento di un rotifero bdelloideo. Atti Soc Ital Sci Nat Museo Civ Stor Nat Milano 117:144–148
Ricci C (1980) Experimental observations on maternal reproductive rate and offspring characteristics. Hydrobiologia 73:21–25
Rougier C, Pourriot R (1977) Aging and control of the reproduction in Brachionus calyciflorus (Pallas) (Rotatoria) Exp Gerontol 12:137–151
Ruttner-Kolisko A (1974) Plankton rotifers. Biology and taxonomy. E Schweizerbartsche, (Nägele u Obermiller, eds) Stuttgart. Die Binnengewässer 26 suppl: 1–146
Staehelin LA (1974) Structure and function of intercellular junctions. Int Rev Cytol 39:191–283
Wurdak ES, Gilbert JJ (1976) Polymorphism in the rotifer Asplanchna sieboldi: fine structure of saccate, cruciform and campanulate females. Cell Tissue Res 169:435–448
Wurdak ES, Gilbert JJ, Jagels R (1977) Resting egg ultrastructure and formation of the shell in Asplanchna sieboldi and Brachionus calyciflorus. Arch Hydrobiol Beitr 8:298–302
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Amsellem, J., Ricci, C. Fine structure of the female genital apparatus of Philodina (Rotifera, Bdelloidea). Zoomorphology 100, 89–105 (1982). https://doi.org/10.1007/BF00310356
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DOI: https://doi.org/10.1007/BF00310356