Results 21 to 30 of about 13,979 (205)

Urochordate ascidians possess a single isoform of Aurora kinase that localizes to the midbody via TPX2 in eggs and cleavage stage embryos. [PDF]

open access: yesPLoS ONE, 2012
Aurora kinases are key proteins found throughout the eukaryotes that control mitotic progression. Vertebrate Aurora-A and B kinases are thought to have evolved from a single Aurora-kinase isoform closest to that found in present day urochordates.
Celine Hebras, Alex McDougall
doaj   +1 more source

Microbiome Variability across the Native and Invasive Ranges of the Ascidian Clavelina oblonga

open access: yesApplied and Environmental Microbiology, 2020
Nonnative species destabilize coastal ecosystems and microbial symbionts may facilitate their spread by enhancing host survival and fitness. However, we know little of the microorganisms that live inside invasive species and whether they change as the ...
Millie Goddard‐Dwyer   +2 more
semanticscholar   +1 more source

Observations on the symbiotic relationship between the caridean shrimp Odontonia sibogae (Bruce, 1972) and its ascidian host Herdmania momus (Savigny, 1816). [PDF]

open access: yesPLoS ONE, 2018
Symbiotic relationships between shrimps and other invertebrates are a very common phenomenon in tropical environments. Although the caridean shrimp-ascidian association has been known for many years, the nature of this relationship is still unclear.
Ya'arit Levitt-Barmats, Noa Shenkar
doaj   +1 more source

Ascidian cytotoxic cells: state of the art and research perspectives [PDF]

open access: yesInvertebrate Survival Journal, 2012
Ascidian cytotoxic cells are multivacuolated cells, variable in morphology, abundantly represented in the circulation, playing important roles in ascidian immunosurveillance.
L Ballarin
doaj   +2 more sources

Ascidian notochord elongation

open access: yesDevelopmental Biology, 2019
The elongation of embryo and tissue is a key morphogenetic event in embryogenesis and organogenesis. Notochord, a typical chordate organ, undergoes elongation to perform its regulatory roles and to form the structural support in the embryo. Notochord elongation is morphologically similar across all chordates, but ascidian has evolved distinct molecular
Qiongxuan, Lu   +2 more
openaire   +2 more sources

Dynamics of hemocyte subsets from ascidian Halocynthia aurantium in response to tissue damage: a comparative analysis of flow cytometry vs confocal microscopy data [PDF]

open access: yesInvertebrate Survival Journal, 2016
The current study was aimed at investigating the dynamics of circulatory ascidian hemocyte subsets from Halocynthia aurantium in response to tunic damage.
A N Sukhachev   +4 more
doaj   +1 more source

Alkaloids from Marine Ascidians [PDF]

open access: yesMolecules, 2011
About 300 alkaloid structures isolated from marine ascidians are discussed in term of their occurrence, structural type and reported pharmacological activity. Some major groups (e.g., the lamellarins and the ecteinascidins) are discussed in detail, highlighting their potential as therapeutic agents for the treatment of cancer or viral infections.
MENNA, MARIALUISA   +2 more
openaire   +3 more sources

Sperm Motility, Oxidative Status, and Mitochondrial Activity: Exploring Correlation in Different Species

open access: yesAntioxidants, 2021
Sperm quality assessment is the first step for evaluating male fertility and includes the estimation of sperm concentration, motility, and morphology.
Alessandra Gallo   +3 more
doaj   +1 more source

Symbiotic bacteria associated with ascidian vanadium accumulation identified by 16S rRNA amplicon sequencing.

open access: yesMarine Genomics, 2019
Ascidians belonging to Phlebobranchia accumulate vanadium to an extraordinary degree (≤ 350 mM). Vanadium levels are strictly regulated and vary among ascidian species; thus, they represent well-suited models for studies on vanadium accumulation.
T. Ueki, M. Fujie, Romaidi, N. Satoh
semanticscholar   +1 more source

Endozoicomonas are specific, facultative symbionts of sea squirts

open access: yesFrontiers in Microbiology, 2016
Ascidians are marine filter feeders and harbor diverse microbiota that can exhibit a high degree of host-specificity. Pharyngeal samples of Scandinavian and Mediterranean ascidians were screened for consistently associated bacteria by culture-dependent ...
Lars Schreiber   +6 more
doaj   +1 more source

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