Morphology and fluorescence of the parapodial light glands in Tomopteris helgolandica and allies (Phyllodocida: Tomopteridae)

TitleMorphology and fluorescence of the parapodial light glands in Tomopteris helgolandica and allies (Phyllodocida: Tomopteridae)
Publication TypeJournal Article
Year of Publication2017
AuthorsGouveneaux A., Flood P.R, Erichsen E.S, Olsson C., Lindstrom J., Mallefet J.
JournalZoologischer Anzeiger
Volume268
Pagination112-125
Date Published2017/08
Type of ArticleArticle
ISBN Number0044-5231
Accession NumberWOS:000404319600013
Keywordsbioluminescence; catharina gosse; Chromophile gland; Hyaline gland; nervous-system; organs; Pelagic annelid; photocytes; Rosette gland; Tubular gland; worm
Abstract

The histology of putative light organs in the parapodia of five species of Tomopteris (pelagic annelids) is examined and compared using light, epifluorescence and scanning electron microscopy. The structural homology of rosette glands in the parapodial pinnae of the tail-bearing species T. helgolandica and T. pacifica, and hyaline glands of the tail-less species T. carpenteri, T. planktonis and T. septentrionalis is highlighted. However, the rosette glands point towards the ramus of the coelomic cavity inside the parapodia, whereas the hyaline glands point towards the surrounding water and penetrate the pinnal surface on the posterior side of the parapodia. Further, in order to assess the photogenic properties of rosette glands from T. helgolandica, we analysed the distribution and the temporal dynamics of their endogenous fluorescence in isolated parapodia in response to light emission.

DOI10.1016/j.jcz.2016.08.002
Student Publication: 
No