Results 121 to 130 of about 115,613 (166)
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Development of Larval Body Wall Muscles
International Review of Neurobiology, 1999Publisher Summary Larval muscles in Drosophila form a complex pattern of contractile fibers that attach to the inner surface of the developing epidermis. Each segment has its own, highly specific set of muscles, but from the point of view of the neuromuscular junction, most attention has been focused on the muscles of the abdominal segments.
M, Bate +2 more
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Larvae and Larval Development of Monogeneans
1963Publisher Summary This chapter focusses on a group of parasitic platyhelminths generally referred to as monogenetic trematodes. A few monogeneans are viviparous and the newly-born young resemble the parents, but most are oviparous, and the newly hatched young is a larva and called an oncomiracidium.
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Larval development of Toxocara canis in dogs
Veterinary Parasitology, 2011The parasitic roundworm Toxocara canis is present in dog populations all over the world. Due to its zoonotic potential, this roundworm is of special interest not only for veterinarians, but also for medical practitioners. In the present review, current knowledge of infection routes and the subsequent development of larvae within the canine host is ...
Thomas, Schnieder +2 more
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Larval development of hyolithids
Lethaia, 1978The larval development of hyolithids is inferred to have been closely similar to that of primitive gastropods. A trochophore-like larva produced a swollen initial conch and a convex operculum. The initial conch was either subsphaerical and smooth or fusiform with a pointed apex and growth lines.
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Larval development in Cnidaria: A connection to bilateria?
genesis, 2001AbstractSummary: Among the basal animal phyla, the Cnidaria display many characteristics similar to the Bilateria (the higher Metazoa). However, the relation of that outgroup phyla to the Bilateria is still equivocal. Additionally to morphological and genetic data, studies on cnidarian embryogenesis are essential to clarify the Cnidaria‐Bilateria ...
H, Gröger, V, Schmid
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Larval Development of Limnoperna Fortunei
2015Mature sperm cells of Limnoperna fortunei measure about 4 µm, and ova are typically spherical, 80–100 µm in diameter. Forty minutes after spawning, the first polar lobe appears, and the first division occurs 14 min later. Slightly over an hour after spawning, the second polar lobe appears and the second division yields a 4-cell stage.
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Larval development of Gobius xanthocephalus with genetic validation of larval identification
Journal of Fish Biology, 2008Larval development of Gobius xanthocephalus with descriptions of the ontogeny of the main structures, changes in pigmentation patterns and allometric relationships are presented for the first time. No previous descriptions of G. xanthocephalus larvae are available and therefore field collected larvae were compared with larvae obtained under controlled ...
Monteiro, J. +5 more
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Larval development of Myzostoma cirriferum (Myzostomida)
Journal of Morphology, 2003AbstractThe larval development of Myzostoma cirriferum is described by means of SEM, TEM, and cLSM. It is similar to that of other myzostomids and includes three stages: the protrochophore, the trochophore, and the metatrochophore. The protrochophore is a ball‐shaped larva present in culture from 18–48 h after egg laying.
Eeckhaut, I. +2 more
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Food selection in larval fruit flies: dynamics and effects on larval development
Naturwissenschaften, 2013Selecting food items and attaining a nutritionally balanced diet is an important challenge for all animals including humans. We aimed to establish fruit fly larvae (Drosophila melanogaster) as a simple yet powerful model system for examining the mechanisms of specific hunger and diet selection.
Sebastian, Schwarz +2 more
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Phylogenetic analyses of mode of larval development
Seminars in Cell & Developmental Biology, 2000Phylogenies based on morphological or molecular characters have been used to provide an evolutionary context for analysis of larval evolution. Studies of gastropods, bivalves, tunicates, sea stars, sea urchins, and polychaetes have revealed massive parallel evolution of similar larval forms.
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