Results 41 to 50 of about 2,273 (239)

Transplants in annelids, nemerteans and planarians: a tool for embryology, immunology, endocrinology and regeneration research [PDF]

open access: yesInvertebrate Survival Journal, 2015
While transplantation procedures are often associated with biomedical applications, they are also an invaluable tool for basic research. This review focuses on how transplantation techniques have been used to understand the biology of three large ...
E E Zattara
doaj   +1 more source

Some heteronemerteans (Nemertea) from the Solomon Islands

open access: yes, 2002
Gibson, Ray, Sundberg, Per (2002): Some heteronemerteans (Nemertea) from the Solomon Islands. Journal of Natural History 36 (15): 1785-1804, DOI: 10.1080/00222930110069041, URL: http://www.tandfonline.com/doi/abs/10.1080 ...
Sundberg, Per, Gibson, Ray
core   +1 more source

Tetrodotoxin and Its Analogues (TTXs) in the Food-Capture and Defense Organs of the Palaeonemertean Cephalothrix cf. simula

open access: yesToxins
Tetrodotoxin (TTX), an extremely potent low-molecular-weight neurotoxin, is widespread among marine animals including ribbon worms (Nemertea). Previously, studies on the highly toxic palaeonemertean Cephalothrix cf.
Grigorii V. Malykin   +2 more
doaj   +1 more source

First records of Hubrechtella ijimai (Nemertea, Hubrechtiiformes) from Korea and China [PDF]

open access: yesCheck List, 2017
Hubrechtella ijimai is reported for the first time from South Korea (East China Sea) and China (Yellow Sea), about 260 and 930 km from the nearest locality in Japan.
Alexei V Chernyshev   +3 more
doaj   +3 more sources

Tetrodotoxins in Ribbon Worms Cephalothrix cf. simula and Kulikovia alborostrata from Peter the Great Bay, Sea of Japan

open access: yesToxins, 2022
Tetrodotoxin, an extremely potent low-molecular-weight neurotoxin, and its analogues (TTXs) are widely distributed in aquatic and terrestrial ecosystems. Most investigations concerning TTXs have been conducted mainly on puffer fish, octopus, and mollusks,
Anna E. Vlasenko, Timur Yu. Magarlamov
doaj   +1 more source

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher   +1 more
wiley   +1 more source

New records of ribbon worms (Nemertea) from Ceará, Northeast Brazil

open access: yes, 2016
Mendes, Cecili B., Matthews-Cascon, Helena, Norenburg, Jon L. (2016): New records of ribbon worms (Nemertea) from Ceará, Northeast Brazil. Zootaxa 4061 (2): 146-156, DOI: 10.11646/zootaxa.4061.2.
Matthews-Cascon, Helena   +2 more
core   +1 more source

An Overview of Hox Genes in Lophotrochozoa: Evolution and Functionality

open access: yesJournal of Developmental Biology, 2016
Hox genes are regulators of animal embryonic development. Changes in the number and sequence of Hox genes as well as in their expression patterns have been related to the evolution of the body plan.
Marco Barucca   +2 more
doaj   +1 more source

Estuarine benthic diversity declines with temperature across a tropical–temperate gradient

open access: yesEcography, EarlyView.
Estuarine benthic sediments are important habitats that support ecosystem health and productivity, but the drivers of large‐scale patterns in benthic diversity are not well documented. Using 18S amplicon sequencing of 425 sediment DNA samples from estuaries spanning 20° of latitude along Australia's east coast, we assessed tropical–temperate patterns ...
Sally A. Bracewell   +5 more
wiley   +1 more source

Comparative morphology and evolution of the nephridia in Nemertea

open access: yes, 2010
Bartolomaeus, Thomas, Döhren, Jörn von (2010): Comparative morphology and evolution of the nephridia in Nemertea. Journal of Natural History 44 (37-40): 2255-2286, DOI: 10.1080/00222933.2010.503941, URL: http://dx.doi.org/10.1080/00222933.2010 ...
Thomas Bartolomaeus   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy