Physalia gonodendra are not yet sexually mature when released.

ABSTRACT: The blue bottle genus Physalia is one of the well-known siphonophore belonging to the Cnidaria, Hydrozoa. Physalia is also known as a ferocious predator, occasionally stinging and fatally wounding humans, but key details of its life cycle and reproductive biology are unclear. Physalia have separate sexes, and sexual reproduction occurs through the release of complex structures called gonodendra that contain many gonophores that will release either eggs or sperm. It is not known how mature the gonophores are when the gonodendra are released. In this study, we aim to characterize germ cell maturation by conducting histological, cytological, and gene expression analyses of the gonodendron of Physalia utriculus from Japan. We found a layered structure of the gonophore, consistent with other st

SUBMITTER: Oguchi K 

PROVIDER: S-EPMC11450099 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature