Results 41 to 50 of about 11,562 (259)
Class Hydrozoa Owen, 1834 4 “Les gonothèques naissent sur les portions distales de branches ordinaires dont les hydroclades modifiées en rameaux protecteurs et armés de nématothèques (phylactocarpes), sont disposées en verticilles plus ou moins réguliers, enveloppant les gonothèques à la façon d’une corbule (pseudo-corbule)”. 5 “As described by Nutting
Galea, Horia R.+2 more
openaire +2 more sources
The 17,922 base pairs (bp) nucleotide sequence of the linear mitochondrial DNA (mtDNA) molecule of the freshwater jellyfish Craspedacusta sowerbyi (Hydrozoa, Trachylina, Limnomedusae) has been determined.
Hong Zou+4 more
doaj +1 more source
A fragmented metazoan organellar genome [PDF]
Background: Animal mitochondrial (mt) genomes are characteristically circular molecules of ~16–20 kb. Medusozoa (Cnidaria excluding Anthozoa) are exceptional in that their mt genomes are linear and sometimes subdivided into two to presumably four ...
Erpenbeck, Dirk+2 more
core +1 more source
Understanding Dynamic Molecular Responses Is Key to Designing Environmental Stress Experiments: A Review of Gene and Protein Expression in Cnidaria Under Stress. [PDF]
ABSTRACT Gene and protein expression analyses are powerful tools to investigate the responses of cnidarians to stress, providing information on both genetic and functional variation and capturing dynamic shifts in organismal physiology. As the use of high throughput sequencing to understand responses of cnidarians to stressors is still relatively new ...
Molinari CG, McDougall C, Pitt KA.
europepmc +2 more sources
Medusae and ctenophores from the Bahia Blanca Estuary and neighboring inner shelf (Southwest Atlantic Ocean, Argentina) [PDF]
An updated checklist of medusae and ctenophores is presented for the first time for the area comprised by the Bahía Blanca Estuary, the adjacent shelf El Rincón and Monte Hermoso beach, on the southwest coast of Buenos Aires province (Argentina).
Dutto, María Sofía+5 more
core +1 more source
Character Evolution in Hydrozoa (phylum Cnidaria) [PDF]
The diversity of hydrozoan life cycles, as manifested in the wide range of polyp, colony, and medusa morphologies, has been appreciated for centuries. Unraveling the complex history of characters involved in this diversity is critical for understanding the processes driving hydrozoan evolution.
Annalise M. Nawrocki, Paulyn Cartwright
openaire +3 more sources
Medusan Morphospace: Phylogenetic Constraints, Biomechanical Solutions, and Ecological Consequences [PDF]
Medusae were the earliest animals to evolve muscle-powered swimming in the seas. Although medusae have achieved diverse and prominent ecological roles throughout the world\u27s oceans, we argue that the primitive organization of cnidarian muscle tissue ...
Ahlborn+114 more
core +2 more sources
Omnivory by the Small Cosmopolitan Hydromedusa Aglaura Hemistoma [PDF]
We investigated the feeding of the small hydromedusa, Aglaura hemistoma (bell diameter \u3c 4 mm), to determine if it occupies a trophic position similar to that of large medusae.
Colin, Sean+3 more
core +2 more sources
Stings from the hydrozoan species in the genus Physalia cause intense, immediate skin pain and elicit serious systemic effects. There has been much scientific debate about the most appropriate first aid for these stings, particularly with regard to ...
Christie L. Wilcox+3 more
doaj +1 more source
An endogenous green fluorescent protein–photoprotein pair in Clytia hemisphaerica eggs shows co-targeting to mitochondria and efficient bioluminescence energy transfer [PDF]
Green fluorescent proteins (GFPs) and calcium-activated photoproteins of the aequorin/clytin family, now widely used as research tools, were originally isolated from the hydrozoan jellyfish Aequora victoria.
Cécile Fourrage+4 more
doaj +1 more source