Results 61 to 70 of about 856 (189)

Triggering of strobilation by an increase in temperature (Experiment G).

, 2013
Cumulative percentage of polyp strobilation during a change of temperature from 17.5°C to 18, 19, 20, 21 and 23°C. Previously polyps were at 17.5°C for 5 months. The x-axis is the time (days) after the increment of temperature.
Diana Astorga (360180), Laura Prieto (360179), Javier Ruiz (360181), Gabriel Navarro (132468)   +3 more
core   +1 more source

Muscular remodeling and anteroposterior patterning during tapeworm segmentation

Developmental Dynamics, Volume 253, Issue 11, Page 998-1023, November 2024.
Abstract Background Tapeworms are parasitic flatworms that independently evolved a segmented body plan, historically confounding comparisons with other animals. Anteroposterior (AP) patterning in free‐living flatworms and in tapeworm larvae is associated with canonical Wnt signaling and positional control genes (PCGs) are expressed by their musculature
Francesca Jarero, Andrew Baillie, Nick Riddiford, Jimena Montagne, Uriel Koziol, Peter D. Olson   +5 more
wiley   +1 more source

Signal‐Transduction Proteins from Caribbean Cassiopea xamachana: The Scaffolding Protein CxRACK1 Shows Conserved Molecular Signatures and Differential Expression between Larval and the Subsequent Metamorphic Stages

Aquaculture Research, Volume 2024, Issue 1, 2024.
The molecular features from the coding sequence and part of the 5′‐UTR of the scaffolding protein receptor for activated C kinase (CxRACK1) gene from the jellyfish Cassiopea xamachana were assessed by a combination of regular and inverse PCR amplifications.
Tania Islas-Flores, Patricia Cabrales-Arellano, Estefanía Morales-Ruiz, Marco A. Villanueva, Christyn Bailey   +4 more
wiley   +1 more source

Retinoic Acid Signaling Regulates the Metamorphosis of Feather Stars (Crinoidea, Echinodermata): Insight into the Evolution of the Animal Life Cycle

Biomolecules, 2019
Many marine invertebrates have a life cycle with planktonic larvae, although the evolution of this type of life cycle remains enigmatic. We recently proposed that the regulatory mechanism of life cycle transition is conserved between jellyfish (Cnidaria)
Shumpei Yamakawa, Yoshiaki Morino, Hisanori Kohtsuka, Hiroshi Wada   +3 more
doaj   +1 more source

Thyroxine in Early Strobilation inAurelia aurita [PDF]

American Zoologist, 1974
Radiochromatographic studies of 131I-treated Aurelia polyps revealed synthesis of three compounds tentatively identified as monoiodotyrosine (MIT), diiodotyrosine (DIT), and thyroxine (T4). One compound, MIT, is found within 8 hr after 131I administration, before the detection of DIT or T4 which appear within 24 hr.
openaire   +1 more source

Ecological interactions driving spring dynamics of Aurelia aurita medusae (Linnaeus, 1758) in the western and north-western Black Sea [PDF]

Nature Conservation
This study examined the ecological factors influencing spring fluctuations in the medusa population of the moon jellyfish (Aurelia aurita) in the western and north-western Black Sea between 2009 and 2015.
Vesselina Vasileva Mihneva, Elitsa Slaveva Stefanova, Kremena Blagovestova Stefanova   +2 more
doaj   +3 more sources

Seasonality and life cycle of the jellyfish Lychnorhiza lucerna Haeckel, 1880 (Scyphozoa) in southern Brazil [PDF]

Anais da Academia Brasileira de Ciências
Lychnorhiza lucerna, is a species of Scyphozoa with tropical and subtropical distribution in the western Atlantic. The knowledge of its life cycle is fragmented, with little understanding of environmental factors affecting growth processes and ...
ANDRESSA LEITE DA SILVA, CHARRID RESGALLA JR.   +1 more
doaj   +1 more source

Release time (strobilation) curves (the estimated ’s) for the periods 1982–1990 (blue triangles) vs. 1991–2004 (red circles) and their 90% point-wise confidence regions shaded blue (red) over the first (second) period.

, 2014
The estimated strobilation curves for the Pribilof Islands are almost identical for the two periods. The 80-day strobilation window is from March 15th to June 5th each year.
Mary Beth Decker (565511), Wei Cheng (52808), Kung-Sik Chan (565513), Lorenzo Ciannelli (422710), Ziqian Zhou (565512), Carol Ladd (543103), Kun Chen (131048)   +6 more
core   +1 more source

Effect of feeding on the percentage of strobilation during an increase in temperature (Experiment H).

, 2013
A) Proportion of polyps that died without strobilating during a change of temperature from 17.5°C to 26°C, fed with zooplankton (empty circles) and not fed (filled circles) during 70 days. B) Cumulative percentage of polyp strobilation in both treatments.
Diana Astorga (360180), Laura Prieto (360179), Javier Ruiz (360181), Gabriel Navarro (132468)   +3 more
core   +1 more source

The effects of environmental light condition on strobilation in Aurelia aurita polyps

Sessile Organisms, 2003
The effects of light condition on strobilation of Aurelia aurita polyps were investigated in the laboratory. Significant differences in changes in the cumulative proportion of strobilae among total polyps were found between polyps incubated under light and dark conditions.
Ishii, Haruto, Shioi, Hiromi
openaire   +2 more sources