Results 1 to 10 of about 70 (59)

TTX-Bearing Planocerid Flatworm (Platyhelminthes: Acotylea) in the Ryukyu Islands, Japan [PDF]

open access: yesMarine Drugs, 2018
Polyclad flatworms comprise a highly diverse and cosmopolitan group of marine turbellarians. Although some species of the genera Planocera and Stylochoplana are known to be tetrodotoxin (TTX)-bearing, there are few new reports.
Haruo Sugita, Shirō Itoi
exaly   +4 more sources

Natural Products in Polyclad Flatworms [PDF]

open access: yesMarine Drugs, 2021
Marine invertebrates are promising sources of novel bioactive secondary metabolites, and organisms like sponges, ascidians and nudibranchs are characterised by possessing potent defensive chemicals.
Justin M. McNab   +3 more
doaj   +2 more sources

Structural Characterization and Spatial Mapping of Tetrodotoxins in Australian Polyclads [PDF]

open access: yesMarine Drugs, 2022
Tetrodotoxin (TTX) is a potent marine neurotoxin that occurs in several Australian phyla, including pufferfish, toadfish, gobies, and the blue-ringed octopus.
Justin M. McNab   +5 more
doaj   +2 more sources

First Detection of Tetrodotoxins in the Cotylean Flatworm Prosthiostomum trilineatum [PDF]

open access: yesMarine Drugs, 2021
Several polyclad flatworm species are known to contain high levels of tetrodotoxin (TTX), but currently TTX-bearing flatworms seem to be restricted to specific Planocera lineages belonging to the suborder Acotylea.
Rei Suo   +8 more
doaj   +2 more sources

The Ultrastructure of the Apical Organ of the Goette's Larvae of the Polyclad Flatworm Stylochus pilidium Indicates Homology Between Polyclad Larvae [PDF]

open access: yesCell Biology International, Volume 49, Issue 8, Page 989-1002, August 2025.
ABSTRACT Polyclad flatworms exhibit both direct and indirect development, with various larval types observed, including Müller's larva, Kato's larva, Goette's larva and Curini‐Galletti's larva. The different larval types are distinguished by shape, number of eyes and number of lobes.
Davina Düngler   +5 more
wiley   +2 more sources

Polyclads (Platyhelminthes) in the southern Gulf of Mexico: unveiling biodiversity and descriptions of two new species [PDF]

open access: yesZooKeys
The order Polycladida (Platyhelminthes) in Mexico has historically received limited attention from researchers, primarily due to challenges associated with its low detectability and the scarcity of specialists.
Daniel Cuadrado   +3 more
doaj   +4 more sources

Reinvestigating the early embryogenesis in the flatworm Maritigrella crozieri highlights the unique spiral cleavage program found in polyclad flatworms [PDF]

open access: yesEvoDevo, 2019
Background Spiral cleavage is a conserved, early developmental mode found in several phyla of Lophotrochozoans resulting in highly diverse adult body plans.
Johannes Girstmair   +1 more
doaj   +2 more sources

Systematic Revision of the Family Pleioplanidae Faubel, 1983 (Polycladida, Acotylea): New Genus and Combinations

open access: yesEuropean Journal of Taxonomy, 2017
New morphological information, reconsiderations and the first combination of a generic name based on a previously established species are presented in the current revision of the family Pleioplanidae (Polycladida, Acotylea).
Bruno Almón   +2 more
exaly   +3 more sources

Characterization and Phylogenetic Position of Two Sympatric Sister Species of Toxic Flatworms Planocera Multitentaculata and Planocera reticulata (Platyhelminthes: Acotylea)

open access: yesMitochondrial DNA Part B: Resources, 2020
The complete mitochondrial genomes of two toxic flatworm species of the genus Planocera were determined. The total length of mitochondrial DNA (mtDNA) was 15,657 bp in Planocera multitentaculata and 15,486 bp in Planocera reticulata and included 12 ...
Haruo Sugita   +2 more
exaly   +2 more sources

A Revised Checklist and Identification Key for Acotylean Flatworms (Rhabditophora: Polycladida: Acotylea) From the Caribbean Coast of Colombia

open access: yesTaxonomy
The Order Polycladida comprises a diverse yet understudied group of free-living flatworms, traditionally divided into Cotylea and Acotylea based on the presence or absence of a ventral adhesive organ known as a cotyl. Species identification, particularly
Sigmer Quiroga   +2 more
exaly   +3 more sources

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