The Biological Bulletin articles

Recent articles from The Biological Bulletin

Structural and functional changes in regenerating antennules in the crayfish Orconectes sanborni.(Report)
April 1, 2008... Introduction Crayfish as useful models for the study of nerve regeneration The crayfish antennule is a useful model for the study of the characteristics and mechanisms of neural repair for many reasons. The connections between the olfactory receptors on the external structures and...

A spring-matrix model for pigment translocation in the red ovarian chromatophores of the freshwater shrimp Macrobrachium olfersi (Crustacea, Decapoda).(Report)
April 1, 2008... Introduction The investigation of pigment-bearing cells, chromatophores, has provided a wealth of information regarding the mechanisms of intracellular transport. A wide diversity of form and function continues to be revealed for receptor agonists (Rao, 1992; de Oliveira et al., 1996;...

Reciprocal changes in calcification of the gastrolith and cuticle during the molt cycle of the red claw crayfish Cherax quadricarinatus.(Report)
April 1, 2008... Introduction In most crustaceans, the rigid exoskeleton--cuticle--contains much of the stored calcium (Wheatly and Ayers, 1995). Produced by the underlying epidermal cells, the cuticle is composed of four layers (from outer to inner): epicuticle, exocuticle, endocuticle, and membranous...

Endosymbionts of Siboglinum fiordicum and the phylogeny of bacterial endosymbionts in Siboglinidae (Annelida).(Report)
April 1, 2008... Introduction Siboglinids, previously known as the phyla Pogonophora and Vestimentifera, are now recognized as a monophyletic clade within annelid worms (McHugh, 1997; Black et al., 1997; Halanych et al., 2001; Rouse et al., 2004; Struck et al., 2007). As adults, they lack a mouth, gut,...

Tunic phagocytes are involved in allorejection reaction in the colonial tunicate Aplidium yamazii (Polyclinidae, Ascidiacea).(Report)
April 1, 2008... Introduction Colony specificity (allogeneic recognition between colonies) has been reported in many colonial organisms, such as sponges, hydrozoans, corals, bryozoans, and ascidians. Its occurrence is usually manifested by fusibility, or the lack thereof, between colonies: two colonies...