Results 21 to 30 of about 779 (167)

A hundred species, mostly new—first assessment of ribbon worm diversity and distribution in Oman [PDF]

PeerJ
Background Biodiversity is a key characteristic of any ecosystem but remains largely undescribed for most marine animals. Ribbon worms (phylum Nemertea), a diverse but poorly sampled phylum ubiquitous in the world’s oceans, are a case in point.
Svetlana Maslakova, Irina Cherneva, Ethan Kahn, Audrey Wong, Gustav Paulay   +4 more
doaj   +3 more sources

The accordion worm: a new genus and species of heteronemertean (Nemertea, Pilidiophora) from Galicia (Spain) [PDF]

Royal Society Open Science
Ribbon worms (Nemertea) are a less-known group of invertebrates, specially challenging for taxonomic studies due to the scarcity of external morphological features.
Aida Verdes, Carlota Gracia-Sancha, Jacinto Pérez-Dieste, María Conejero, Patricia Alvarez Campos, Carlos Leiva, Sergi Taboada, Ana Riesgo, Juan Junoy   +8 more
doaj   +2 more sources

Identification of Six Novel Proteins Containing a ZP Module from Nemertean Species [PDF]

Biomolecules
During fertilization, a series of reactions between the eggs and spermatozoa proceed predominantly in a species-specific manner. The molecules mediating these species-specific reactions remain unknown except in a few organisms.
Jumpei Ikenaga, Kaoru Yoshida, Manabu Yoshida   +2 more
doaj   +2 more sources

Nemertide Alpha-1 as a Biopesticide: Aphid Deterrence, Antimicrobial Activity, and Safety Aspects [PDF]

Marine Drugs
Aphid control often relies on synthetic pesticides, but their overuse has raised concerns about resistance development and negative impact on wildlife and human health. Consequently, the search for new biopesticide agents has gained significant attention.
Quentin Laborde, Katarzyna Dancewicz, Erik Jacobsson, Adam A. Strömstedt, Taj Muhammad, Camilla Eriksson, Blazej Slazak, Ulf Göransson, Håkan S. Andersson   +8 more
doaj   +2 more sources

Genome Size Dynamics in Marine Ribbon Worms (Nemertea, Spiralia) [PDF]

Genes, 2021
Juraj Paule, Jorn Von Döhren, Christina Sagorny   +2 more
exaly   +2 more sources

A Field-Friendly, Non-Toxic Fixative for Integrated Morphological and Molecular Research in Non-Model Invertebrates. [PDF]

Ecol Evol
Formalin, ethanol, and RNAlater are commonly used fixatives for morphological and molecular studies, but each has limitations when specimen availability is low, as is often the case with field‐collected non‐model organisms. Here, we evaluate KINFix, a non‐toxic alcohol‐based fixative, in four invertebrate taxa and show that it effectively preserves ...
Del Olmo I, Moreno-Martín P, Álvarez-Campos P, Verdes A.   +3 more
europepmc   +2 more sources

Tetrodotoxins Secretion and Voltage-Gated Sodium Channel Adaptation in the Ribbon Worm Kulikovia alborostrata (Takakura, 1898) (Nemertea)

Toxins, 2021
Nemertea is a phylum of marine worms whose members bear various toxins, including tetrodotoxin (TTX) and its analogues. Despite the more than 30 years of studying TTXs in nemerteans, many questions regarding their functions and the mechanisms ensuring ...
Anna E. Vlasenko, Vasiliy G. Kuznetsov, Grigorii V. Malykin, Alexandra O. Pereverzeva, Peter V. Velansky, Konstantin V. Yakovlev, Timur Yu. Magarlamov   +6 more
doaj   +1 more source

Findings of Notospermus geniculatus (Delle Chiaje, 1828) (Nemertea, Heteronemertea, Lineidae) in the Mediterranean islands of Sicily and Rhodes

Arxius de Miscel-lània Zoològica, 2021
Troballes de Notospermus geniculatus (Delle Chiaje, 1828) (Nemertea, Heteronemertea, Lineidae) a les illes mediterrànies de Sicília i Rodes Es documenten les troballes de Notospermus geniculatus a Sicília el 2019 i el 2020 i a Rodes el 2008, amb la qual ...
G. Insacco, B. Zava, M. Corsini–Foka
doaj   +1 more source

The Microbial Community of Tetrodotoxin-Bearing and Non-Tetrodotoxin-Bearing Ribbon Worms (Nemertea) from the Sea of Japan

Marine Drugs, 2020
A potent marine toxin, tetrodotoxin (TTX), found in a great variety of marine and some terrestrial species, leaves intriguing questions about its origin and distribution in marine ecosystems. TTX-producing bacteria were found in the cultivable microflora
Daria I. Melnikova, Timur Yu. Magarlamov   +1 more
doaj   +1 more source

Diversity in the Development of the Neuromuscular System of Nemertean Larvae (Nemertea, Spiralia)

Frontiers in Ecology and Evolution, 2021
In studies on the development of nervous systems and musculature, fluorescent labeling of neuroactive substances and filamentous actin (f-actin) of muscle cells and the subsequent analysis with confocal laser scanning microscopy (CLSM), has led to a ...
Jörn von Döhren
doaj   +1 more source