Results 91 to 100 of about 17,957 (220)

Second Discovery of an Epizoic Deep-sea Holothurian-Ascidian Association, Pseudostichopus mollis (Echinodermata: Holothuroidea) and Cnemidocarpa ochotense (Urochordata: Ascidiacea), on the Western Slope of the Chishima Trench, Northeast Japan

open access: yesSpecies Diversity
An association comprising a solitary ascidian attached to the dorsal surface of a holothurian was discovered in 2022 on the bathyal seafloor (ca. 2000 m depth) of the western slope of the Chishima (Kuril-Kamchatka) Trench, off the southeastern coast of ...
Akito Ogawa, Teruaki Nishikawa
doaj   +1 more source

Upregulated transcription of phenoloxidase genes in the pharynx and endostyle of Ciona intestinalis in response to LPS [PDF]

open access: yes, 2015
We investigated the role of phenoloxidases (POs) in ascidians inflammatory reaction, a components of a copper-containing protein family involved in invertebrate immune system.
Cammarata, M   +6 more
core   +1 more source

Protostigmata in ascidians [PDF]

open access: yesProceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1913
It has been showed that at a certain stage in the ontogeny of Ascidians there is usually a definite number of stigmata or gill slits, which are elongated dorsorventrally and arranged in a longitudinal series on each side of the pharynx. To these the name protostigmata was given by Garstang in 1892.
openaire   +1 more source

The distribution of Dishevelled in convergently extending mesoderm [PDF]

open access: yes, 2013
Convergent extension (CE) is a conserved morphogenetic movement that drives axial lengthening of the primary body axis and depends on the planar cell polarity (PCP) pathway.
Bretschneider, Till   +3 more
core   +1 more source

Fibronectin Contributes To Notochord Intercalation In The Invertebrate Chordate, Ciona Intestinalis [PDF]

open access: yes, 2016
Background: Genomic analysis has upended chordate phylogeny, placing the tunicates as the sister group to the vertebrates. This taxonomic rearrangement raises questions about the emergence of a tunicate/vertebrate ancestor.
Cha, A.   +4 more
core   +1 more source

The integrins of the urochordate provide novel insights into the molecular evolution of the vertebrate integrin family [PDF]

open access: yes, 2005
Background: Integrins are a functionally significant family of metazoan cell surface adhesion receptors. The receptors are dimers composed of an alpha and a beta chain.
Ewan, Richard   +5 more
core   +1 more source

Ascidians from Curaçao [PDF]

open access: yesBijdragen tot de Dierkunde, 1924
Through the kindness of Dr. C. J. VAN DER HORST of Amsterdam, I have had the opportunity of examining and reporting on the collection of ascidians that he made at Curaçao, Dutch West Indies, in April and May, 1920. The collection represents only the littoral fauna of the island; all the specimens appear to have been obtained in very shallow water on ...
openaire   +3 more sources

Ascidian gene-expression profiles.

open access: yesGenome biology, 2002
With the advent of gene-expression profiling, a large number of genes can now be investigated simultaneously during critical stages of development. This approach will be particularly informative in studies of ascidians, basal chordates whose genomes and embryology are uniquely suited for mapping developmental gene networks.
openaire   +3 more sources

Impact of artificial coastal protection structures on Ascidians settlement along the Tamil Nadu coast, India

open access: yesOceanologia, 2019
Summary: Ascidians are one of the dominant marine sedentary filter feeders recorded more frequently as introduced species than other taxa. It is renowned that artificial structures offer novel niches to the non-native species.
Prince Prakash Jebakumar Jebarathanam   +7 more
doaj   +1 more source

Prochloron research [PDF]

open access: yes
The purpose was to prepare Prochloron photosynthetic membranes for the isolation of the two major chlorophyll-proteins, the P700-chlorophyll a-protein and the light-harvesting chlorophyll a/b-protein, using SDS-polyacrylamide gel electrophoresis.
Cheng, L., Lewin, R. A.
core   +1 more source

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