Results 71 to 80 of about 197 (131)

Direct Development of Golf Ball Sponges, Genus Craniella (Demospongiae, Tetractinellida) From the Northeast Atlantic Ocean

Molecular Reproduction and Development, Volume 92, Issue 10, October 2025.
ABSTRACT Among the eight types of development in sponges, the least common and least studied is direct, non‐larval development during viviparity. To supplement our knowledge of this rare type of demosponge development, we present here a description of the embryonic development of four species of the genus Craniella (Demospongiae, order Tetractinellida)
Paco Cárdenas, Sandrine Chenesseau, Jim Drewery, Alexander Ereskovsky   +3 more
wiley   +1 more source

Evaluation of geochemical records as a paleoenvironmental proxy in the hypercalcified demosponge Astrosclera willeyana

Progress in Earth and Planetary Science, 2020
The geochemistry of the calcium carbonates of marine organisms is an excellent proxy for reconstruction of the paleoceanographic history. However, previous studies of hypercalcified demosponges (sclerosponges) are considerably fewer than those of corals,
Ryuji Asami, Akira Kinjo, Daiki Ohshiro, Tohru Naruse, Masaru Mizuyama, Ryu Uemura, Ryuichi Shinjo, Yuji Ise, Yoshihisa Fujita, Takashi Sakamaki   +9 more
doaj   +1 more source

Post‐Embryonic Development and Formation of the Heterocoelic Aquiferous System in Two Species of Calcareous Sponges (Calcarea, Porifera)

Molecular Reproduction and Development, Volume 92, Issue 10, October 2025.
ABSTRACT We characterized the morphogenetic processes of larval metamorphosis and the development of the olynthus and heterocoelic aquiferous system (AS) in Sycettusa hastifera (syconoid) and Paraleucilla magna (leuconoid) (Porifera, Calcarea). Metamorphosis and development up to the olynthus were similar in both species.
Emilio Lanna, Michelle Klautau
wiley   +1 more source

Isolation and Characterization of a Mn(II)-Oxidizing Bacillus Strain from the Demosponge Suberites domuncula

Marine Drugs, 2010
In this study we demonstrate that the demosponge Suberites domuncula harbors a Mn(II)-oxidizing bacterium, a Bacillus strain, termed BAC-SubDo-03. Our studies showed that Mn(II) stimulates bacterial growth and induces sporulation.
Xiaohong Wang, Renato Batel, Werner E. G. Müller, Heinz C. Schröder, Vladislav A. Grebenjuk, Mugdha Divekar, Matthias Wiens   +6 more
doaj   +1 more source

Transcriptomic Profiling of the Allorecognition Response to Grafting in the Demosponge Amphimedon queenslandica

Marine Drugs, 2017
Sponges, despite their simple body plan, discriminate between self and nonself with remarkable specificity. Sponge grafting experiments simulate the effects of natural self or nonself contact under laboratory conditions.
Laura F. Grice, Bernard M. Degnan
doaj   +1 more source

The Chitinous Skeleton of Ianthella basta Marine Demosponge as a Renewable Scaffold-Based Carrier of Antiseptics

Polysaccharides
The chitinous skeleton of the marine demosponge Ianthella basta exhibits a unique network-like 3D architecture, excellent capillary properties, and chemical inertness, making it highly suitable for interdisciplinary research, especially in biomedical ...
Izabela Dziedzic, Kamil Dydek, Alona Voronkina, Valentin Kovalchuk, Teofil Jesionowski, Hermann Ehrlich   +5 more
doaj   +1 more source

Contraction Dynamics and Respiration of Small Single-Osculum Explants of the Demosponge Halichondria panicea

Frontiers in Marine Science, 2018
Sponges pump large amounts of seawater through their water canal system, providing both food and oxygen to the sponge body. Sponge pumping activity may show considerable variation as a consequence of contractile behavior, which includes contraction and ...
Lars Kumala, Lars Kumala, Lars Kumala, Lars Kumala, Donald Eugene Canfield   +4 more
doaj   +1 more source

Swedish marine demosponge fauna (Porifera: Demospongiae) sampled 80 years after Jägerskiöld’s inventory

European Journal of Taxonomy
It has been 80 years since Leonard Axel Jägerskiöld’s thorough marine faunistic inventory of the Swedish west coast (1921-1938), which represents the latest update of the Swedish sponge marine fauna. In this study, we present an update of the demosponge
Raquel PEREIRA, Mats LARSSON, Paco CÁRDENAS, Mikael THOLLESSON   +3 more
doaj   +1 more source

Checklist of sponges (Porifera) at the shelf-break front of Argentina, SW Atlantic Ocean, with data on their settlement substrata

The European Zoological Journal
A checklist of the sponges recorded in Argentina’s shelf-break front between 37° and 45°S as well as the settlement substrates they used is provided here.
L. Schejter, C. Bremec, C. Cerrano, M. Bertolino, B. Calcinai   +4 more
doaj   +1 more source

The cells of the ectosome of Demosponges

, 1975
No ...
openaire   +1 more source