Results 41 to 50 of about 14,394 (155)

On artificial parthenogenesis in sea-urchins. [PDF]

open access: yesScience, 1900
IN No. 277 of SCIENCE, I stated that the MgCl 2 solution used in my experiments on artificial parthenogenesis was a 20/8 n solution. I have since found that the assistant who made the Mg-solution used and who has left the laboratory must have made a mistake as the solution contained only ...
openaire   +3 more sources

Characterization of sea-urchin fibronectin [PDF]

open access: yesBiochemical Journal, 1983
Sea-urchin fibronectin from the ovary of the sea urchin Pseudocentrotus depressus bound to gelatin, fibrin and fibrinogen. After mild digestion of the protein labelled with 125I, a 195 000 Da domain was observed. Sea-urchin fibronectin was aggregated by spermine (1 mM) at neutral pH.
M, Iwata, E, Nakano
openaire   +2 more sources

Phylogenomics of strongylocentrotid sea urchins [PDF]

open access: yesBMC Evolutionary Biology, 2013
Strongylocentrotid sea urchins have a long tradition as model organisms for studying many fundamental processes in biology including fertilization, embryology, development and genome regulation but the phylogenetic relationships of the group remain largely unresolved. Although the differing isolating mechanisms of vicariance and rapidly evolving gamete
Kober, Kord M, Bernardi, Giacomo
openaire   +4 more sources

Odor-active compounds from the gonads of Mesocentrotus nudus sea urchins fed Saccharina japonica kelp.

open access: yesPLoS ONE, 2020
Gonad size, color, texture and taste of Mesocentrotus nudus sea urchins collected from a barren can be improved by a short-term cage culture while being fed fresh Saccharina japonica kelp during May-July. We investigated the effect of S. japonica feeding
Satomi Takagi   +4 more
doaj   +1 more source

Energetic context determines the effects of multiple upwelling-associated stressors on sea urchin performance

open access: yesScientific Reports, 2021
Globally, kelp forests are threatened by multiple stressors, including increasing grazing by sea urchins. With coastal upwelling predicted to increase in intensity and duration in the future, understanding whether kelp forest and urchin barren urchins ...
Kindall A. Murie, Paul E. Bourdeau
doaj   +1 more source

The first complete mitochondrial genome of Stomopneustes variolaris (Lamarck, 1816) from the Stomechinidae (Echinoidea: Stomopneustoida)

open access: yesMitochondrial DNA. Part B. Resources, 2021
Sea urchins (Echinoidea) are key components of marine benthic communities and many are commercially important fishery resources as luxury and healthy seafood. However, despite their high ecological and economic value, the mitochondrial genomes of all sea
Shengping Zhong   +4 more
doaj   +1 more source

Microbial Composition and Genes for Key Metabolic Attributes in the Gut Digesta of Sea Urchins Lytechinus variegatus and Strongylocentrotus purpuratus Using Shotgun Metagenomics

open access: yesCurrent Issues in Molecular Biology, 2021
This paper describes the microbial community composition and genes for key metabolic genes, particularly the nitrogen fixation of the mucous-enveloped gut digesta of green (Lytechinus variegatus) and purple (Strongylocentrotus purpuratus) sea urchins by ...
Joseph A. Hakim   +5 more
doaj   +1 more source

Trophic ecology of sea urchins in coral-rocky reef systems, Ecuador [PDF]

open access: yesPeerJ, 2016
Sea urchins are important grazers and influence reef development in the Eastern Tropical Pacific (ETP). Diadema mexicanum and Eucidaris thouarsii are the most important sea urchins on the Ecuadorian coastal reefs.
Nancy Cabanillas-Terán   +3 more
doaj   +2 more sources

The Sea Urchin [PDF]

open access: yesScientific American, 1870
n ...
openaire   +2 more sources

Effects of water temperature and pH value on covering behavior of the sea urchin Glyptocidaris crenularis

open access: yesInvertebrate Survival Journal, 2017
As marine calcifying organisms, sea urchins are sensitive in the changing ocean. More information is needed about the effects of pH value and water temperature on behaviors of sea urchins.
M F Yang   +6 more
doaj  

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