Results 81 to 90 of about 10,332 (207)

Genetic perspectives on the ascidian central nervous system [PDF]

Invertebrate Survival Journal, 2009
In 2002, date of publication of the Ciona intestinalis genome, ascidians entered the post-genomic era. This tool had a fundamental role and has become the starting point for a series of new functional and genomic studies.
A Locascio, F Ristoratore, A Spagnuolo, L Zanetti, M Branno   +4 more
doaj   +1 more source

Why Some Bryozoans Poop Themselves: A Novel Defecation Method in Ctenostome Bryozoans

Journal of Morphology, Volume 287, Issue 8, August 2026.
Defecation process in ctenostome bryozoans with vestibular anus. Faecal pellets are formed in the gut and afterwards pushed via the hindgut onto the retracted lophophore. The latter pushes the pellets outside. ABSTRACT Feeding in animal colonies is a challenging but important aspect in organisms comprised of numerous zooids.
Thomas Schwaha, Sebastian H. Decker
wiley   +1 more source

Detecting Symmetry in Ascidian Embryo

2024 IEEE International Symposium on Biomedical Imaging (ISBI)
Modern microscopy techniques allow to acquire temporal sequences of 3D stacks. It provides a unprecedented means to image developing organs or embryos at the cellular level, but results in a huge quantity of data.Proposing efficient processing methods is then absolutely crucial. We are addressing here the study of ascidian embryo development.
Malandain, Grégoire, Lemaire, Patrick
openaire   +2 more sources

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

Species 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

Spectral decomposition unlocks ascidian morphogenesis

, 2023
Describing morphogenesis generally consists in aggregating the multiple high resolution spatiotemporal processes involved into repeatable low dimensional morphological processes consistent across individuals of the same species or group.
Munro, Ed, Lemaire, Patrick, Dokmegang, Joel, Faure, Emmanuel, Mani, Madhav   +4 more
core   +1 more source

Ascidian-Inspired Supramolecular Cellulose Nanocomposite Hydrogels with Antibacterial Activity

The design of ultratough hydrogels has recently emerged as a topic of great interest in the scientific community due to their ability to mimic the features of biological tissues.
Anabela Carnicero (14040666), Marisa Martinelli (2377567), Cecilia I. Alvarez Igarzabal (14040672), Matías L. Picchio (12729820), Sergio D. Dalosto (2004220), Roque J. Minari (3127449), Mario C. G. Passeggi (7312961), Agustín González (14040669)   +7 more
core   +3 more sources

Early specification of ascidian larval motor neurons [PDF]

, 2005
In the tadpole larvae of the ascidian Halocynthia roretzi, six motor neurons, Moto-A, -B, and -C (a pair of each), are localized proximal to the caudal neural tube and show distinct morphology and innervation patterns.
Ohtsuka, Yukio, Terashima, Toshio, Katsuyama, Yu, Matsumoto, Jun, Okamura, Yasushi, Okada, Toshiaki   +5 more
core   +1 more source

Cytotoxicity of the Ascidian Cystodytes dellechiajei Against Tumor Cells and Study of the Involvement of Associated Microbiota in the Production of Cytotoxic Compounds

Marine Drugs, 2007
Many cytotoxic compounds of therapeutic interest have been isolated from marine invertebrates, and some of them have been reported to be of microbial origin.
Josefa Antón, Eduardo Larriba, Patricia Lopez, Nélida Salvador, Alfonso Ramos-Esplá, Marta Díaz-Valdés, Manuel Martínez-García   +6 more
doaj   +1 more source

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

Oceanologia, 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, Nandhagopal Ganesan, Rajan Babu Bose, Ragumaran Shunmugavel, Ramakritinan Chokalingam Muthiah, Abdul Jaffar Ali, Mohammed Kaleem Arshan, Vijaya Ravichandran   +7 more
doaj   +1 more source

A review of the life history, invasion process, and potential management of Clavelina lepadiformis Müller, 1776: a recent invasion of the northwest Atlantic [PDF]

Management of Biological Invasions, 2012
The colonial tunicate Clavelina lepadiformis is a recent invader to the northwest Atlantic and has the potential to cause ecological andeconomic harm. This paper provides a review of the biological and ecological characteristics of C.
James F. Reinhardt, David M. Hudson
doaj