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Topic: Ascidia


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In the News (Mon 28 May 12)

  
  Definition of ascidia - Merriam-Webster Online Dictionary
Learn more about "ascidia " and related topics at Britannica.com
Find more about "ascidia " instantly with Live Search
See a map of "ascidia " in the Visual Thesaurus
www.m-w.com /cgi-bin/dictionary?book=Dictionary&va=ascidia   (41 words)

  
 [No title]   (Site not responding. Last check: 2007-10-10)
The food of the Ascidia also consists of tiny organisms, infusoria, diatoms, parts of decomposed marine plants and animals; etc. These pass with the water into the gill-crate and the digestive part of the gut at the end of it, at first into an enlargement of it that represents the stomach.
It is true that the fully-developed Ascidia resembles the Amphioxus in several important features of its internal structure, and especially in the peculiar character of the gill-crate and gut.
In the adult Ascidia the branchial gut and the heart on its ventral side are almost the only organs that recall the original affinity with the vertebrates.
pandemonium.tiscali.de /pub/gutenberg/etext04/vlmn210.txt   (20050 words)

  
 Ascidia sydneiensis, Introduced Marine Species of Hawaii Guidebook
Fertilization is external, and after a time in the plankton the free-swimming tadpole larvae will settle and metamorphose.
Ascidia sydneiensis is probably the most common large ascidian in calm waters in Hawaii.
First described from Port Jackson, Australia, from material collected intertidally, most of its many synonyms were described from Indonesia, Sri Lanka, or Australia.
www2.bishopmuseum.org /HBS/invertguide/species/ascidia_sydneiensis.htm   (508 words)

  
 an45
A detailed chemical model of vanadium within intact whole blood cells of the tunicate Ascidia ceratodes is calculated using known the known equilibrium behavior of V(III) and sulfate in acid solution.
cDNA SEQUENCE FOR A 100 kDa ANTIGEN REACTED WITH A MONOCLONAL ANTIBODY S8E4 IN VANADOCYTES OF THE ASCIDIAN, Ascidia sydneiensis samea.
Glucose-6-phosphate dehydrogenase in the pentose phosphate pathway is localized in vanadocytes of the vanadium-rich ascidian, Ascidia sydneiensis samea.
nsm.fullerton.edu /~lamberts/ascidian/an45.html   (9633 words)

  
 HMS Student Papers 1997 - Photoprotective role of the egg follicle cells in the sea squirt Ascidia ceratodes   (Site not responding. Last check: 2007-10-10)
Studies were performed using natural sunlight and a variety of wavelength filters to expose intact Ascidia eggs and eggs in which the MAA-containing follicle cells had been removed to various types of ultraviolet radiation.
This series of studies demonstrated that at ambient solar radiation levels there are no observable differences in rates of early development between Ascidia embryos where follicle cells were removed and embryos with an intact follicle cell layer.
This study suggests that the tunicate embryo has a variety of defenses against UV damage, and the defensive role played by mycosporine-like amino acids may not be of primary importance.
www-sul.stanford.edu /depts/miller/student_papers/1997_16.html   (198 words)

  
 Molecular Physiology Laboratory
Ueki, T., Uyama, T., Kanamori, K., and Michibata, H. Subunit C of the vacuolar-type ATPase from the vanadium-rich ascidians, Ascidia sydneiensis samea, rescued the pH sensitivity of yeast vma5 mutants.
Ueki, T., Uyama, T., Kanamori, K. and Michibata, H. (1998) Isolation of cDNAs encoding subunits A and B of the vacuolar-type ATPase from the vanadium-rich ascidian, Ascidia sydneiensis samea.
Uyama, T., Yamamoto, K., Kanamori, K. and Michibata, H. (1998) Glucose-6-phosphate dehydrogenase in the pentose phosphate pathway is localized in vanadocytes of vanadium-rich ascidian, Ascidia sydneiensis samea.
home.hiroshima-u.ac.jp /~bio/APN/e_index.html   (1056 words)

  
 Bioaccumulation of Copper Ions by Escherichia coli Expressing Vanabin Genes from the Vanadium-Rich Ascidian Ascidia ...   (Site not responding. Last check: 2007-10-10)
Bioaccumulation of Copper Ions by Escherichia coli Expressing Vanabin Genes from the Vanadium-Rich Ascidian Ascidia sydneiensis samea -- Ueki et al.
Vanadium-binding protein in a vanadium-rich ascidian Ascidia sydneiensis samea: CW and pulsed EPR studies.
Expressed sequence tag analysis of blood cells in the vanadium-rich ascidian, Ascidia sydneiensis samea — a survey of genes for metal accumulation.
aem.asm.org /cgi/content/full/69/11/6442   (3157 words)

  
 Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
Energy Citations Database (ECD) Document #420969 - Interaction of vanadium and sulfate in blood cells from the tunicate Ascidia ceratodes: Observations using x-ray absorption edge structure and EPR spectroscopies
Interaction of vanadium and sulfate in blood cells from the tunicate Ascidia ceratodes: Observations using x-ray absorption edge structure and EPR spectroscopies
Sulfur K-edge X-ray absorption spectroscopy (S-K XAS) and EPR spectroscopy have been used to investigate the inorganic solution chemistry of vanadium, sulfate, and methanesulfonate, with application to blood cells from the tunicate Ascidia ceratodes.
www.osti.gov /energycitations/product.biblio.jsp?osti_id=420969   (435 words)

  
 Vanadium K-edge X-ray Absorption Spectroscopy Reveals Species Differences within the Same Ascidian Genera. A COMPARISON ...
Vanadium K-edge x-ray absorption spectroscopy (XAS) was used to examine whole blood preparations from the tunicates Ascidia
We reported previously (13) on the results of a K-edge x-ray absorption spectroscopic study of vanadium in the blood cells
significant presence in morula cells (40); and in Ascidia sydneiensis
www.jbc.org /cgi/content/full/273/38/24498   (4515 words)

  
 Banta, Indonesia - Ascidia, Ascidian, Sea squirt, Polycarpa aurata   (Site not responding. Last check: 2007-10-10)
Banta, Indonesia - Ascidia, Ascidian, Sea squirt, Polycarpa aurata
Ascidia (con coralli e spugne) - Ascidian (with corals and sponges)
If you don't see the Index frame on the left click
digilander.libero.it /scubabob/Komodo/Varie/ascidia02.html   (31 words)

  
 Ascidia callosa The Callused Tunicate   (Site not responding. Last check: 2007-10-10)
Phylum Chordata Subphylum Urochordata Class Ascidiacea Order Phlebobranchia Family Ascidiidae Genus Ascidia Species callosa
Description: Up to 5 cm across; translucent while young, brownish, growing opaque with age; usually coated with diatoms, algae and other small organisms; shape is generally hemispherical and flattened where attached to substratum; two small volcano shaped siphons located near the top.
Found in a tire hanging off the dock at the Boston Harbor Marina.
www.nwmarinelife.com /htmlswimmers/a_callosa.html   (93 words)

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