Results 71 to 80 of about 16,899 (204)

Echinoderms

, 2021
Florian Pontheaux, Fernando Roch, Julia Morales, Patrick Cormier   +3 more
  +8 more sources

Structural Characterization and Profiles of Saponins from Two Algerian Sea Cucumbers

Molecules
Sea cucumbers are benthic marine invertebrate members of the phylum Echinodermata. Due to the absence of a rigid skeleton, these species have developed chemical defenses based on the production of saponins (triterpene glycosides).
Ihcene Khodja, Karim Mezali, Philippe Savarino, Pascal Gerbaux, Patrick Flammang, Guillaume Caulier   +5 more
doaj   +1 more source

Contourite erosional and depositional features of the Maastrichtian chalk on Jasmund peninsula (Rügen island, NE Germany)

Sedimentology, EarlyView.
ABSTRACT Seismic‐scale features such as deeply incised submarine valleys and mounded drifts together with ichnological features indicative of discontinuous sedimentation and erosional episodes have recently been documented from the Upper Cretaceous chalk in the southern Baltic Sea area.
Marcel Schlembach, Heiko Hüneke, Mike Reich, Svante Peters, Nele Ahlhaus, Sylvia Weinert, Arwed Gibb   +6 more
wiley   +1 more source

Echinoderms have bilateral tendencies. [PDF]

, 2012
Echinoderms take many forms of symmetry. Pentameral symmetry is the major form and the other forms are derived from it. However, the ancestors of echinoderms, which originated from Cambrian period, were believed to be bilaterians.
Wu Liang, Wenchan Zhao, Sishuo Wang, Ji Chengcheng, Chengcheng Ji, Wang Sishuo, Lv Jianhao, Zhao Wenchan, Liang Wu, Jianhao Lv   +9 more
core   +1 more source

Identification of Crucial Drug Targets and Pathways to Reprogram Drug Resistance Through Epigenetic Modulation in Advanced Lung Cancer Using Integrated Bioinformatics Approach

Computational and Systems Oncology, Volume 6, Issue 1, December 2026.
ABSTRACT Resistance to chemotherapy, which is demonstrated in almost every patient with advanced‐stage lung cancer (ALC), underscores an urgent need to unravel the underlying molecular mechanisms and identify novel strategies to overcome drug resistance. In the present study, an attempt was made to identify epigenetic targets and modulators that can be
Okibur Rahman, Mossammat Rima Akter, Nur Alam   +2 more
wiley   +1 more source

Disentangling the depositional, tectonic and diagenetic history of a unique case of rhombic calcite in marine carbonate scree‐like deposits in the Cretaceous Cauvery Basin

The Depositional Record, Volume 12, Issue 5, November 2026.
A succession of marine deposited scree deposits got exposed to meteoric fluids due to sea level drop or tectonic uplift. This potentially caused a unique form of diagenetic transformation in scree deposits, that is the formation of micro rhombic calcite.
Shilpa Srimani, Theresa Nohl
wiley   +1 more source

Chukhonastovka – the reference section of the Turonian-Lower Santonian from the Volga-Ilovlya interfluve (the Volga right bank area near Volgograd). Paper 2. Characteristics of the Oryctocomplexes [PDF]

Известия Саратовского университета. Новая серия: Серия Науки о Земле
A representative complex of the Turonian-Santonian carbonate-producing invertebrates has been revealed. It comprised benthic foraminifers, diverse echinoderms, brachiopods, calcareous and siliceous sponges.
Pervushov, Evgeniy Mikhaylovich, Ryabov, Ilya P., Kalyakin, Evgeniy Aleksandrovich, Shelepov, Dmirtiy Aleksandrovich, Ilinskiy, Egor Igorevich   +4 more
doaj   +1 more source

First Record of Triplet Embryos in Sea Turtles: Evidence of Natural Polyembryony in a Wild Green Turtle (Chelonia mydas) Nest From Guanahacabibes, Cuba

Ecology and Evolution, Volume 16, Issue 10, October 2026.
A rare case of polyembryonic triplets in a wild green turtle (Chelonia mydas) nest demonstrates how multiple embryos can develop within a single egg under natural conditions. Morphological and embryological evidence, including independent yolk vasculature and marked asymmetry among embryos, support a monozygotic origin and highlight developmental ...
Julia Azanza‐Ricardo, Annelisse Bárcenas‐Ibarra, Kevin Armando Domínguez‐León, Randy Calderón‐Peña, Yunaisy Guerrero‐Esquijarosa, Eduardo E. Colin‐Hidalgo, José A. Marmolejo‐Valencia, Horacio Merchant‐Larios, Daniel J. Sánchez‐Ochoa, Horacio de la Cueva   +9 more
wiley   +1 more source

Echinoderms [PDF]

Current Biology, 2005
Amemiya, Chris T., Miyake, Tsutomu, Rast, Jonathan P.   +2 more
openaire   +2 more sources

The Evolution and Diversity of SALMFamide Neuropeptides [PDF]

, 2013
The SALMFamides are a family of neuropeptides that act as muscle relaxants in echinoderms. Two types of SALMFamides have been identified: L-type (e.g.
Achhala Sufyan, Martynyuk Natalia, Martynyuk, N, Achhala, S, Maurice R Elphick, Elphick, MR, Natalia Martynyuk, Elphick Maurice R., Sufyan Achhala   +8 more
core   +2 more sources