Combining confocal laser scanning and transmission electron microscopy for revealing the mastax musculature in Bryceella stylata (Milne, 1886) (Rotifera: Monogononta)

Wilts, Eike F.; Wulfken, Diana; Ahlrichs, Wilko H.

doi:10.1016/j.jcz.2009.11.002

Cited by 11 publications

(23 citation statements)

References 24 publications

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“…3C; white arrowhead) -we found cuticular tubes in the ultrastructure of the fulcrum (Pleurotrocha petromyzon and Proales tillyensis (see Wulfken et al, 2010), Bryceella stylata (see Wilts et al, 2010), Dicranophorus forcipatus (see Riemann and Ahlrichs, 2008), Paraseison annulatus, and S. nebaliae (see Ahlrichs, 1995b). In all of these species, except for F. longiseta, P. annulatus and S. nebaliae, the cuticular tubes are restricted to the fulcrum region.…”

Section: Informational Value Of the Trophi Ultrastructurementioning

confidence: 81%

The ultrastructure of the mastax of Filinia longiseta (Flosculariaceae, Rotifera): Informational value of the trophi structure and mastax musculature

Wulfken

Ahlrichs

2012

Zoologischer Anzeiger - A Journal of Comparative Zoology

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Section: Informational Value Of the Trophi Ultrastructurementioning

confidence: 81%

The ultrastructure of the mastax of Filinia longiseta (Flosculariaceae, Rotifera): Informational value of the trophi structure and mastax musculature

Wulfken

Ahlrichs

2012

Zoologischer Anzeiger - A Journal of Comparative Zoology

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“…They suggest that these tubular subunits were present in all trophi parts in the stem species of Rotifera. Such an ultrastructure of the fulcrum has been confirmed in the Seisonida Paraseison annulatus and Seison nebaliae (Ahlrichs 1995); in the ploimid Monogononta Polyarthra vulgaris, Taphrocampa selenura, and Encentrum marinum (Ahlrichs 1995); in Pleurotrocha petromyzon and Proales tillyensis (Wulfken et al 2010); in Bryceella stylata (Wilts et al 2010); in Dicranophorus forcipatus (also in the epipharynx) ; in the ploimid monogononts, Encentrum mustela, Itura aurita, Lindia tecusa, and Asplanchna (Wulfken & Ahlrichs 2012); and in the flosculariacean monogonont Filinia longiseta (Wulfken & Ahlrichs 2012). This suggests that the distinctly rod-shaped sclerites (without sulcus and carina) composing the fulcrum in Rhinoglena and Proalides, and likewise catenae in the latter, have a tubular structure with electrondense core as well.…”

Section: Discussionmentioning

confidence: 85%

“…); in Bryceella stylata (Wilts et al. ); in Dicranophorus forcipatus (also in the epipharynx) (Riemann & Ahlrichs ); in the ploimid monogononts, Encentrum mustela , Itura aurita , Lindia tecusa, and Asplanchna (Wulfken & Ahlrichs ); and in the flosculariacean monogonont Filinia longiseta (Wulfken & Ahlrichs ). This suggests that the distinctly rod‐shaped sclerites (without sulcus and carina) composing the fulcrum in Rhinoglena and Proalides , and likewise catenae in the latter, have a tubular structure with electron‐dense core as well.…”

Section: Discussionmentioning

confidence: 99%

Ontogeny of the jaws of monogonont rotifers: the malleate trophi of Rhinoglena and Proalides (Ploima, Epiphanidae)

Smet

Segers

2017

Invertebrate Biology

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Information on the embryonic development of the malleate trophi in Epiphanidae (Rotifera, Monogononta, Ploima) is presented, based on scanning electron microscopy observations in Rhinoglena fertoeensis, R. frontalis, R. kutikovae, R. tokioensis, and Proalides tentaculatus, to contribute to the understanding of this structure of high evolutionary and functional relevance in Rotifera. The first observable and distinctly sclerotized structures were a double row of median transversal sclerites along the longitudinal axis, wherein the future unci, rostellar scleropili, cristae rami, and basal apophyses became recognizable. Fulcrum and manubria arose subsequently; the fulcrum sclerites were longitudinally ordered in a double layer. The rami chambers developed last as lamellar structures. Unci appeared as separate thin, elongate elements, the primary uncini, developing to uncus plates by transversal growth and apposition of sclerite material on the shafts of the uncini. The heads of the uncini showed their greatest development after fusion of their shafts into uncus plates. The interjacent spaces between the heads functioned as a mold, organizing bundles of sclerites which developed into the uniseriate, zigzag‐shaped cristae rami. The fulcrum attained its definite shape by elongation of the double layer of rod‐shaped sclerites into appressed sclerofibrillae. Manubria became visible as a proximal ridge of sclerites, whereupon a triangular lamella composed of crisscross‐oriented sclerites developed distally, growing out to the manubrial chambers. Ramus chambers originated from two longitudinal amorphous lamellae incorporating the median rami sclerites and closing from distal to proximal; subbasal chambers were formed before the basal chambers.

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“…2009b; Wilts et al. 2009a,b; Wilts et al 2010) to contribute new data for future phylogenetic analyses. We hope that these contributions will also help to solve taxonomical problems still remaining in several rotiferan taxa.…”

Section: Introductionmentioning

confidence: 99%

The musculature of Squatinella rostrum (Milne, 1886) (Rotifera: Lepadellidae) as revealed by confocal laser scanning microscopy with additional new data on its trophi and overall morphology

et al. 2010

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Wilts, E.F., Wulfken, D., Ahlrichs, W.H. and Martínez Arbizu, P. 2012. The musculature of Squatinella rostrum (Milne, 1886) (Rotifera: Lepadellidae) as revealed by confocal laser scanning microscopy with additional new data on its trophi and overall morphology.-Acta Zoologica (Stockholm) 93: 14-27.The monogonont rotifer Squatinella rostrum was investigated with light, scanning electron and confocal laser scanning microscopy to reveal new morphological data on its inner and outer anatomy. In total, the visualized somatic musculature displays five paired longitudinal muscles (musculi longitudinales I-V) and nine circular muscles (musculi circulares I-IX). Compared to other species, S. rostrum is characterized by the absence of several longitudinal and circular muscles (e.g. musculus longitudinalis capitis, corona sphincter and pars coronalis). A reconstruction of the mastax musculature revealed a total number of seven paired and two unpaired mastax muscles. Possibly homologous somatic and mastax muscles in other, thus far investigated rotifers are discussed. Moreover, we provide a phylogenetic evaluation of the revealed morphological characters and suggest possible autapomorphic characters supporting Squatinella and Lepadellidae. Finally, we refer to some striking similarities in the morphology, ecology and way of movement of Squatinella and Bryceella that may indicate a closer relationship of both taxa.

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Combining confocal laser scanning and transmission electron microscopy for revealing the mastax musculature in Bryceella stylata (Milne, 1886) (Rotifera: Monogononta)

Cited by 11 publications

References 24 publications

The ultrastructure of the mastax of Filinia longiseta (Flosculariaceae, Rotifera): Informational value of the trophi structure and mastax musculature

The ultrastructure of the mastax of Filinia longiseta (Flosculariaceae, Rotifera): Informational value of the trophi structure and mastax musculature

Ontogeny of the jaws of monogonont rotifers: the malleate trophi of Rhinoglena and Proalides (Ploima, Epiphanidae)

The musculature of Squatinella rostrum (Milne, 1886) (Rotifera: Lepadellidae) as revealed by confocal laser scanning microscopy with additional new data on its trophi and overall morphology

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