Results 71 to 80 of about 1,686,937 (226)

Phylogenomics of strongylocentrotid sea urchins [PDF]

BMC 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

MXenes as a Versatile Platform for High‐Energy‐Density Asymmetric Supercapacitors

Carbon Energy, EarlyView.
MXenes with high conductivity and tunable surface chemistry are reviewed as advanced electrodes for asymmetric supercapacitors. MAX‐phase synthesis, surface and interlayer engineering, defect modulation, and composite designs are discussed, highlighting enhanced ion transport, pseudocapacitance, energy density, cycling stability, and sustainable routes
Seul‐Yi Lee, Jagadis Gautam, Shrikant Vaiju Sadavar, Soo‐Jin Park   +3 more
wiley   +1 more source

Laboratory on sea urchin fertilization [PDF]

Molecular Reproduction and Development, 2011
AbstractSince about 1880, the eggs and sperm of sea urchins have been used for the study of fertilization, the metabolic activation of development and gene regulatory mechanisms governing embryogenesis. Sea urchin gametes are a favorite material for observations of the process of fertilization in advanced high school, community college, and university ...
openaire   +2 more sources

Recombinant Monoclonal Antibodies for Detecting the Tubulin Post‐Translational Modifications Glutamylation and Lysine‐40 Acetylation

Cytoskeleton, EarlyView.
ABSTRACT Post‐translational modifications (PTMs) to tubulin subunits in microtubule filaments are thought to comprise a component of the tubulin code that specifies microtubule functions in cell physiology and animal development. Acetylation of Lysine‐40 (K40) on α‐tubulin (αTub‐K40ac) and glutamylation of both α‐ and β‐tubulin are two tubulin PTMs of ...
Lynne Blasius, Ezekiel C. Thomas, Erik H. Collet, Erin Jenson, Chad G. Pearson, Ryoma Ohi, Kristen J. Verhey   +6 more
wiley   +1 more source

Revision of new species of Eocene sea urchins from Istria, described in the 19th and 20th centuries

Geologija, 2008
In paper are presented drawings and pictures of sea urchins from original works of authors who determined and documented new species from Istria.
Vasja Mikuž
doaj  

Spatial and seasonal variation of the gonad index of Diadema antillarum (Echinodermata:Echinoidea) in the Canary Islands

Scientia Marina, 2006
Diadema antillarum Philippi occurs in high density populations in the Canary Islands, creating extensive barren areas. During one year we determined seasonal changes in the algal abundance and population densities, test diameter, gut contents ...
José Carlos Hernández, Alberto Brito, Nayra García, María Candelaria Gil-Rodríguez, Guacimara Herrera, Alejandro Cruz-Reyes, Jesús M. Falcón   +6 more
doaj   +1 more source

New Insights Into the Three‐Dimensional Mechanics of the Flagellar Beat Cycle

Cytoskeleton, EarlyView.
ABSTRACT Advances in imaging at the molecular scale have provided greater detail concerning the three‐dimensional structure of the ciliary/flagellar axoneme. Additionally, it has recently been confirmed that electrostatic forces regulate the dynein‐tubulin interaction at the microtubule binding domain (MTBD) of dynein, and at the junction of the nexin ...
Charles B. Lindemann
wiley   +1 more source

Embryonic development of the Mediterranean starfish Hacelia attenuata

Developmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo, Laurent Gilletta, Janet Chenevert, Stefania Castagnetti   +3 more
wiley   +1 more source

Mapping the distribution of sea urchin (Echinoidea) and benthic habitat using drone in the waters of Lancang Island [PDF]

BIO Web of Conferences
Sea urchins are valuable marine creatures that live in the waters of Indonesia, and typically found in seagrass and coral reefs. This study aimed to determine the distribution of sea urchins and the benthic characteristics that serve as their habitat ...
Sastraantara Muhammad Sony, Agus Syamsul Bahri, Susilo Setyo Budi   +2 more
doaj   +1 more source

Edible sea urchins : biology and ecology /

, 2001
Sea urchins are a major component of marine environments found throughout the world's oceans. A major model for research in developmental biology, they are also of major economic importance in many regions and interest in their management and aquaculture
Lawrence, John M.
core