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Artigos de revistas sobre o tema "Ascidies – Embryologie"

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Autor: Grafiati

Publicado: 25 de maio de 2024

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1

Imbs, Andrey B., Ekaterina V. Ermolenko, Valeria P. Grigorchuk, Tatiana V. Sikorskaya e Peter V. Velansky. "Current Progress in Lipidomics of Marine Invertebrates". Marine Drugs 19, n.º 12 (25 de novembro de 2021): 660. http://dx.doi.org/10.3390/md19120660.

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Marine invertebrates are a paraphyletic group that comprises more than 90% of all marine animal species. Lipids form the structural basis of cell membranes, are utilized as an energy reserve by all marine invertebrates, and are, therefore, considered important indicators of their ecology and biochemistry. The nutritional value of commercial invertebrates directly depends on their lipid composition. The lipid classes and fatty acids of marine invertebrates have been studied in detail, but data on their lipidomes (the profiles of all lipid molecules) remain very limited. To date, lipidomes or their parts are known only for a few species of mollusks, coral polyps, ascidians, jellyfish, sea anemones, sponges, sea stars, sea urchins, sea cucumbers, crabs, copepods, shrimp, and squid. This paper reviews various features of the lipid molecular species of these animals. The results of the application of the lipidomic approach in ecology, embryology, physiology, lipid biosynthesis, and in studies on the nutritional value of marine invertebrates are also discussed. The possible applications of lipidomics in the study of marine invertebrates are considered.

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2

Honegger, Thomas G., e Ryo Koyanagi. "The ascidian egg envelope in fertilization: structural and molecular features". International Journal of Developmental Biology 52, n.º 5-6 (2008): 527–33. http://dx.doi.org/10.1387/ijdb.072547th.

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3

Nakatani, Yuki, e Hiroki Nishida. "Ras is an essential component for notochord formation during ascidian embryogenesis". Mechanisms of Development 68, n.º 1-2 (novembro de 1997): 81–89. http://dx.doi.org/10.1016/s0925-4773(97)00131-7.

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4

Makabe, Kazuhiro. "01-P019 Small RNAs isolated from the ascidian Halocynthia roretzi embryos". Mechanisms of Development 126 (agosto de 2009): S56. http://dx.doi.org/10.1016/j.mod.2009.06.020.

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5

Irvine, Steven Q., Katherine B. McNulty, Evelyn M. Siler e Rose E. Jacobson. "High temperature limits on developmental canalization in the ascidian Ciona intestinalis". Mechanisms of Development 157 (junho de 2019): 10–21. http://dx.doi.org/10.1016/j.mod.2019.04.002.

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6

Imai, Kaoru S., Nori Satoh e Yutaka Satou. "Region specific gene expressions in the central nervous system of the ascidian embryo". Mechanisms of Development 119 (dezembro de 2002): S275—S277. http://dx.doi.org/10.1016/s0925-4773(03)00128-x.

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7

Caracciolo, Anna, Anna Di Gregorio, Francesco Aniello, Roberto Di Lauro e Margherita Branno. "Identification and developmental expression of three Distal-less homeobox containing genes in the ascidian Ciona intestinalis". Mechanisms of Development 99, n.º 1-2 (dezembro de 2000): 173–76. http://dx.doi.org/10.1016/s0925-4773(00)00474-3.

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8

Wada, Shuichi, e Hidetoshi Saiga. "Vegetal cell fate specification and anterior neuroectoderm formation by Hroth, the ascidian homologue of orthodenticle/otx". Mechanisms of Development 82, n.º 1-2 (abril de 1999): 67–77. http://dx.doi.org/10.1016/s0925-4773(99)00012-x.

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9

Yajima, Ichiro, Kosuke Endo, Shigeru Sato, Reiko Toyoda, Hiroshi Wada, Shigeki Shibahara, Takaharu Numakunai et al. "Cloning and functional analysis of ascidian Mitf in vivo: insights into the origin of vertebrate pigment cells". Mechanisms of Development 120, n.º 12 (dezembro de 2003): 1489–504. http://dx.doi.org/10.1016/j.mod.2003.08.009.

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10

Hashimoto, Hidehiko, Atsushi Enomoto, Gaku Kumano e Hiroki Nishida. "04-P004 Molecular basis of attenuation of competence to respond to FGF signal in ascidian notochord induction". Mechanisms of Development 126 (agosto de 2009): S108. http://dx.doi.org/10.1016/j.mod.2009.06.189.

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11

Sutovsky, Peter. "Sperm proteasome and fertilization". REPRODUCTION 142, n.º 1 (julho de 2011): 1–14. http://dx.doi.org/10.1530/rep-11-0041.

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The omnipresent ubiquitin–proteasome system (UPS) is an ATP-dependent enzymatic machinery that targets substrate proteins for degradation by the 26S proteasome by tagging them with an isopeptide chain composed of covalently linked molecules of ubiquitin, a small chaperone protein. The current knowledge of UPS involvement in the process of sperm penetration through vitelline coat (VC) during human and animal fertilization is reviewed in this study, with attention also being given to sperm capacitation and acrosome reaction/exocytosis. In ascidians, spermatozoa release ubiquitin-activating and conjugating enzymes, proteasomes, and unconjugated ubiquitin to first ubiquitinate and then degrade the sperm receptor on the VC; in echinoderms and mammals, the VC (zona pellucida/ZP in mammals) is ubiquitinated during oogenesis and the sperm receptor degraded during fertilization. Various proteasomal subunits and associated enzymes have been detected in spermatozoa and localized to sperm acrosome and other sperm structures. By using specific fluorometric substrates, proteasome-specific proteolytic and deubiquitinating activities can be measured in live, intact spermatozoa and in sperm protein extracts. The requirement of proteasomal proteolysis during fertilization has been documented by the application of various proteasome-specific inhibitors and antibodies. A similar effect was achieved by depletion of sperm-surface ATP. Degradation of VC/ZP-associated sperm receptor proteins by sperm-borne proteasomes has been demonstrated in ascidians and sea urchins. On the applied side, polyspermy has been ameliorated by modulating sperm-associated deubiquitinating enzymes. Diagnostic and therapeutic applications could emerge in human reproductive medicine. Altogether, the studies on sperm proteasome indicate that animal fertilization is controlled in part by a unique, gamete associated, extracellular UPS.

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12

Bishop, Cory D., Brian K. Hall e William R. Bates. "HSP90 expression in two migratory cell types during ascidian development: test cells deposit HSP90 on the larval tunic". International Journal of Developmental Biology 54, n.º 8-9 (2010): 1337–46. http://dx.doi.org/10.1387/ijdb.082730cb.

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13

Nagatomo, Kan-ichiro, Tomoko Ishibashi, Yutaka Satou, Nori Satoh e Shigeki Fujiwara. "Retinoic acid affects gene expression and morphogenesis without upregulating the retinoic acid receptor in the ascidian Ciona intestinalis". Mechanisms of Development 120, n.º 3 (março de 2003): 363–72. http://dx.doi.org/10.1016/s0925-4773(02)00441-0.

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14

Sobral, Daniel, Andrea Pasini e Patrick Lemaire. "S04-02 How many ways to make a chordate: Comparison of the developmental programmes of ascidians and vertebrates". Mechanisms of Development 126 (agosto de 2009): S28. http://dx.doi.org/10.1016/j.mod.2009.06.1059.

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15

Satoh, Gouki, Yoshito Harada e Nori Satoh. "The expression of nonchordate deuterostome Brachyury genes in the ascidian Ciona embryo can promote the differentiation of extra notochord cells". Mechanisms of Development 96, n.º 2 (setembro de 2000): 155–63. http://dx.doi.org/10.1016/s0925-4773(00)00395-6.

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16

Mugitani, Michio, Kazuhiko Nishide, Gaku Kumano e Hiroki Nishida. "11-P002 Left–right asymmetry of ascidian larvae is determined by rotation of the whole embryos within the vitelline membrane". Mechanisms of Development 126 (agosto de 2009): S184. http://dx.doi.org/10.1016/j.mod.2009.06.439.

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17

Nishida, Hiroki, Masumi Tokuhisa e Miyuki Muto. "Eccentric position of the germinal vesicle and cortical flow during oocyte maturation specify the animal-vegetal axis of ascidian embryos". Mechanisms of Development 145 (julho de 2017): S69. http://dx.doi.org/10.1016/j.mod.2017.04.157.

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18

Wada, Shuichi, You Katsuyama, Yoshiko Sato, Chieko Itoh e Hidetoshi Saiga. "Hroth, an orthodenticle-related homeobox gene of the ascidian, Halocynthia roretzi: its expression and putative roles in the axis formation during embryogenesis". Mechanisms of Development 60, n.º 1 (novembro de 1996): 59–71. http://dx.doi.org/10.1016/s0925-4773(96)00600-4.

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19

Wada, Shuichi, You Katsuyama, Sadao Yasugi e Hidetoshi Saiga. "Spatially and temporally regulated expression of the LIM class homeobox gene Hrlim suggests multiple distinct functions in development of the ascidian, Halocynthia roretzi". Mechanisms of Development 51, n.º 1 (maio de 1995): 115–26. http://dx.doi.org/10.1016/0925-4773(95)00359-9.

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20

Kuratani, Shigeru, Rie Kusakabe, Hiroshi Wada e Kiyokazu Agata. "Evolutionary embryology resurrected in Japan with a new molecular basis—Nori Satoh and the history of ascidian studies born in Kyoto in the 20th century". Russian Journal of Developmental Biology 37, n.º 6 (dezembro de 2006): 397–400. http://dx.doi.org/10.1134/s1062360406060105.

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21

Wada, Shuichi, Norihiro Sudou e Hidetoshi Saiga. "Roles of Hroth, the ascidian otx gene, in the differentiation of the brain (sensory vesicle) and anterior trunk epidermis in the larval development of Halocynthia roretzi". Mechanisms of Development 121, n.º 5 (maio de 2004): 463–74. http://dx.doi.org/10.1016/j.mod.2004.03.017.

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22

Miya, Takahito, Kiyokazu Morita, Naoto Ueno e Noriyuki Satoh. "An ascidian homologue of vertebrate BMPs-5–8 is expressed in the midline of the anterior neuroectoderm and in the midline of the ventral epidermis of the embryo". Mechanisms of Development 57, n.º 2 (julho de 1996): 181–90. http://dx.doi.org/10.1016/0925-4773(96)00545-x.

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23

El-Mouatassim, Said, Stefania Bilotto, Gian Luigi Russo, Elisabetta Tosti e Yves Menezo. "APEX/Ref-1 (apurinic/apyrimidic endonuclease DNA-repair gene) expression in human and ascidian (Ciona intestinalis) gametes and embryos *". MHR: Basic science of reproductive medicine 13, n.º 8 (13 de junho de 2007): 549–56. http://dx.doi.org/10.1093/molehr/gam038.

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24

Daric, Vladimir, Maxence Lanoizelet, Hélène Mayeur, Cécile Leblond e Sébastien Darras. "Genomic resources and annotations for a colonial ascidian, the light-bulb sea squirt Clavelina lepadiformis". Genome Biology and Evolution, 5 de março de 2024. http://dx.doi.org/10.1093/gbe/evae038.

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Abstract Ascidian embryos have been studied since the birth of experimental embryology at the end of the 19th century. They represent textbook examples of mosaic development characterized by a fast development with very few cells and invariant cleavage patterns and lineages. Ascidians belong to tunicates, the vertebrate sister group, and their study is essential to shed light on the emergence of vertebrates. Importantly, deciphering developmental gene regulatory networks has been carried out mostly in two of the three ascidian orders, Phlebobranchia and Stolidobranchia. To infer ancestral developmental programs in ascidians, it is thus essential to carry out molecular embryology in the third ascidian order, the Aplousobranchia. Here, we present genomic resources for the colonial aplousobranch Clavelina lepadiformis: a transcriptome produced from various embryonic stages, and an annotated genome. The assembly consists of 184 contigs making a total of 233.6 Mb with a N50 of 8.5 Mb and a L50 of 11. The 32,318 predicted genes capture 96.3% of BUSCO orthologs. We further show that these resources are suitable to study developmental gene expression and regulation in a comparative framework within ascidians. Additionally, they will prove valuable for evolutionary and ecological studies.

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25

Jessus, Catherine, e Vincent Laudet. "Henri de Lacaze‐Duthiers and the ascidian hypothesis". Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, 16 de novembro de 2023. http://dx.doi.org/10.1002/jez.b.23226.

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AbstractIn 1830, Cuvier and Geoffroy Saint‐Hilaire confronted each other in a famous debate on the unity of the animal kingdom, which permeated the zoology of the 19th century. From that time, a growing number of naturalists attempted to understand the large‐scale relationships among animals. And among all the questions, that of the origin of vertebrates was one of the most controversial. Analytical methods based on comparative anatomy, embryology and paleontology were developed to identify convincing homologies that would reveal a logical sequence of events for the evolution of an invertebrate into the first vertebrate. Within this context, several theories have clashed on the question of the identity of the ancestor of vertebrates. Among the proposals, a group of rather discrete organisms, the ascidians, played a central role. Because he had discovered an ascidian with a particularly atypical larval development, the Molgula, Henri de Lacaze‐Duthiers, a rigorous and meticulous naturalist, became involved in the ascidian hypothesis. While the visionary mind of Lacaze‐Duthiers led him to establish a particularly innovative methodology and the first marine biology station in Europe, at Roscoff, the tailless tadpole of the Molgula prevented him from recognizing the ancestor of vertebrates. This old 19th century story echoes the ever‐present questions driving the field of Eco‐Evo‐Devo.

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26

De Bernardi, Fiorenza. "Giuseppina Ortolani (1951–2009): A “grande dame” in ascidian embryology". genesis, 5 de outubro de 2023. http://dx.doi.org/10.1002/dvg.23559.

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27

Kuratani, Shigeru, Hiroshi Wada, Rie Kusakabe e Kiyokazu Agata. "Evolutionary embryology resurrected in Japan with a new molecular basis: Nori Satoh and the history of ascidian studies originating in Kyoto during the 20th century". International Journal of Developmental Biology 50, Next (2006). http://dx.doi.org/10.1387/ijdb.062154sk.

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