Results 11 to 20 of about 3,861 (176)

Ascidian notochord morphogenesis [PDF]

open access: yesDevelopmental Dynamics, 2007
AbstractThe development of the notochord involves a complex set of cellular behaviors. While these morphogenic behaviors are common to all chordates, the ascidian provides a particularly attractive experimental model because of its relative simplicity. In particular, all notochord morphogenesis in ascidians takes place with only 40 cells, as opposed to
Di, Jiang, William C, Smith
openaire   +2 more sources

Metamorphosis in solitary ascidians [PDF]

open access: yesgenesis, 2014
SummaryEmbryonic and postembryonic development in ascidians have been studied for over a century, but it is only in the last 10 years that the complex molecular network involved in coordinating postlarval development and metamorphosis has started to emerge.
Karaiskou, Anthi   +3 more
openaire   +3 more sources

Occurrence and Seasonal Monitoring of Domoic Acid in Three Shellfish Species from the Northern Adriatic Sea

open access: yesToxins, 2022
As filter feeders, bivalves and ascidians can accumulate contaminants present in the environment and pass them on to higher food chain levels as vectors.
Kristina Kvrgić   +3 more
doaj   +1 more source

The relationship between Ascidians and plastic pollution: A systematic review of interaction mechanisms, biological impacts, and ecological roles [PDF]

open access: yesBIO Web of Conferences
Microplastic (MP) and nanoplastic (NP) pollution are global threats that permeate marine ecosystems. As sessile filter-feeders, ascidians interact heavily with these pollutants.
Suripatty Gabriel   +5 more
doaj   +1 more source

Biological and Chemical Diversity of Ascidian-Associated Microorganisms

open access: yesMarine Drugs, 2018
Ascidians are a class of sessile filter-feeding invertebrates, that provide unique and fertile niches harboring various microorganisms, such as bacteria, actinobacteria, cyanobacteria and fungi.
Lei Chen   +4 more
doaj   +1 more source

Brain Sensory Organs of the Ascidian Ciona robusta: Structure, Function and Developmental Mechanisms

open access: yesFrontiers in Cell and Developmental Biology, 2021
During evolution, new characters are designed by modifying pre-existing structures already present in ancient organisms. In this perspective, the Central Nervous System (CNS) of ascidian larva offers a good opportunity to analyze a complex phenomenon ...
Paola Olivo   +3 more
doaj   +1 more source

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

Behavioural Responses to Ultrasound Antifouling Systems by Adult Solitary Ascidians

open access: yesJournal of Marine Science and Engineering, 2023
Ultrasonic antifouling devices are installed globally on a variety of vessel types and are marketed as an environmentally friendly method for biofouling control. The aim of this study was to examine the effects of ultrasound on adults of three species of
Roberta Varello   +3 more
doaj   +1 more source

Note to: Hox gene cluster of the ascidian, Halocynthia roretzi, reveals multiple ancient steps of cluster disintegration during ascidian evolution

open access: yesZoological Letters, 2019
Background In the previous paper published in 2017, we described the structure of Hox gene cluster of the ascidian, Halocynthia roretzi, and discussed the scenario for the disintegration of Hox gene clusters during evolution of ascidians. The description
Yuka Sekigami   +7 more
doaj   +1 more source

Mass Mortality of Shallow-Water Temperate Corals in Marine Protected Areas of the North Aegean Sea (Eastern Mediterranean)

open access: yesHydrobiology, 2023
Coral mortality is a global phenomenon of increasing magnitude, correlated with climate change. Prolonged marine heatwaves have particularly affected the north Aegean Sea in summer 2021, threatening shallow-water stony corals, such as Balanophyllia ...
Chryssanthi Antoniadou   +3 more
doaj   +1 more source

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