Results 31 to 40 of about 3,807 (163)

Conservation of peripheral nervous system formation mechanisms in divergent ascidian embryos

eLife, 2020
Ascidians with very similar embryos but highly divergent genomes are thought to have undergone extensive developmental system drift. We compared, in four species (Ciona and Phallusia for Phlebobranchia, Molgula and Halocynthia for Stolidobranchia), gene ...
Joshua F Coulcher, Agnès Roure, Rafath Chowdhury, Méryl Robert, Laury Lescat, Aurélie Bouin, Juliana Carvajal Cadavid, Hiroki Nishida, Sébastien Darras   +8 more
doaj   +1 more source

Botryllin, a Novel Antimicrobial Peptide from the Colonial Ascidian Botryllus schlosseri

Marine Drugs, 2023
By mining the transcriptome of the colonial ascidian Botryllus schlosseri, we identified a transcript for a novel styelin-like antimicrobial peptide, which we named botryllin.
Nicola Franchi, Loriano Ballarin, Francesca Cima   +2 more
doaj   +1 more source

Rubrolides A, D, P, T, U: Total Syntheses and Antibacterial Evaluation of Highly Brominated Marine Natural Products

ChemistryEurope, EarlyView.
Following the Danube Flow. The first total syntheses of highly brominated rubrolides T, U, and U‐analog, together with the efficient and divergent syntheses of rubrolides A, D, and P. The dibrominated key intermediate, obtained via a Suzuki‐Miyaura cross‐coupling reaction, is the centerpiece of the synthesis.
Jasmin Janneschütz, Paul G. Schebek, Alexander Meyer, Celina Haller, Sophia Khom, Wolfgang R. Streit, Ifey Alio, Nina Schützenmeister   +7 more
wiley   +1 more source

Incorporating environmental DNA metabarcoding for improved benthic biodiversity and habitat mapping

Remote Sensing in Ecology and Conservation, EarlyView.
Seafloor imagery is commonly used to collect information about the distribution of benthic organisms in order to generate habitat and biodiversity maps. Recent advances in genomics (e.g., environmental DNA; eDNA) show potential to complement video surveys for habitat mapping, but there have been few examples testing this.
Rylan J. Command, Shreya Nemani, Benjamin Misiuk, Mehrdad Hajibabaei, Nicole Fahner, Emily Porter, Greg Singer, Beverly McClenaghan, Katleen Robert   +8 more
wiley   +1 more source

Chemical Investigation of the Indonesian Tunicate Polycarpa aurata and Evaluation of the Effects Against Schistosoma mansoni of the Novel Alkaloids Polyaurines A and B

Marine Drugs, 2019
A deep study of the metabolic content of the tunicate Polycarpa aurata, collected from Indonesian coast, afforded the isolation of two novel alkaloids, polyaurines A (1) and B (2), along with two new p-substituted benzoyl derivatives (3 and 4) and four ...
Marcello Casertano, Concetta Imperatore, Paolo Luciano, Anna Aiello, Masteria Yunovilsa Putra, Roberto Gimmelli, Giovina Ruberti, Marialuisa Menna   +7 more
doaj   +1 more source

As above, so below: A perspective into the application of land‐forest monitoring methods for the assessment of marine animal forests

Methods in Ecology and Evolution, EarlyView.
Abstract Marine animal forests (MAFs) are benthic ecosystems dominated by vertically structuring filter‐ and suspension‐feeders. As terrestrial forests, they are considered biodiversity hotspots, forming canopies, serving as a refuge, nursery, reproduction and feeding shelters for many species.
Torcuato Pulido Mantas, Camilla Roveta, Martina Coppari, Cristina Gioia Di Camillo, Joaquim Garrabou, Nils Lucas Jacobsen, Marco Palma, Ubaldo Pantaleo, Manuja Promodya Hendawitharana, Carlo Cerrano   +9 more
wiley   +1 more source

Yamanaka Factors in the Budding Tunicate Botryllus schlosseri Show a Shared Spatio-Temporal Expression Pattern in Chordates

Frontiers in Cell and Developmental Biology, 2022
In vertebrates, the four transcription factors Sox2, c-Myc, Pou5f1 and Klf4 are involved in the differentiation of several tissues during vertebrate embryogenesis; moreover, they are normally co-expressed in embryonic stem cells and play roles in ...
Virginia Vanni, Marika Salonna, Fabio Gasparini, Margherita Martini, Chiara Anselmi, Chiara Anselmi, Carmela Gissi, Carmela Gissi, Carmela Gissi, Lucia Manni   +9 more
doaj   +1 more source

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

Acta Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi, Bernhard Egger, Isabel L. Dittmann, Verónica N. Bulnes, Pavel Tomancak, Abdel Halim Harrath, Johannes Girstmair   +6 more
wiley   +1 more source

Evaluating and Advancing the Use of Shore‐Based Observers for Scientific Sampling and Catch Verification in High‐Volume Fisheries

Fisheries Management and Ecology, EarlyView.
ABSTRACT Shore‐based observers are increasingly being used in place of at‐sea observers to monitor and sample commercial fisheries catch. However, few evaluations assess whether these programs meet their stated goals or how to optimize them, and industry data are rarely tested for accuracy despite serving as the foundation for catch accounting. Using a
Christian Gredzens, Andy Kingham, Jason E. Jannot   +2 more
wiley   +1 more source

Ascidians Collected in Tanzania

Journal of East African Natural History, 1997
Ascidians were collected in Tanzania in January 1996 by SCUBA diving. Among 31 species reported here, nine are new. Several species were also recently collected in Mozambique. Full descriptions are given with figures and colour plates. The present collection of Tanzanian ascidians significantly increases the number of species known in the tropical ...
Monniot, Françoise, Monniot, Claude
openaire   +2 more sources