Results 71 to 80 of about 3,807 (163)

Niobium in Ascidians [PDF]

open access: yesNature, 1958
IT has been known since 19111 that the blood of certain species of ascidians contains organically bound vanadium. Bertrand2 has shown that most marine invertebrates contain between 0.2 and 2 parts per million of vanadium dry weight, whereas in ascidians the figure may be as high as 6,500 p.p.m. dry weight.
openaire   +1 more source

Antimicrobial and Cytotoxic Properties of the Ascidians Lissoclinum patella, Oxycoryna fascicularis, Didemnum molle and Botryllus schlosseri

open access: yesPharmaceutical Sciences and Research, 2018
The aim of this research is to investigate antimicrobial and cytotoxic activity from Indonesian ascidians. Extracts prepared from the Indonesian ascidians Lissoclinum patella, Oxycoryna fascicularis, Didemnum molle and Botryllus schlosseri were assessed ...
Firmansyah Karim   +3 more
doaj  

Evolutionary mitogenomics of Chordata: the strange case of ascidians and vertebrates [PDF]

open access: yesInvertebrate Survival Journal, 2009
The availability of almost one thousand complete mitochondrial genome (mtDNA) sequences of chordates provides an almost unique opportunity to analyse the evolution of this genome in the phylum Chordata, and to identify possible divergent evolutionary ...
C Gissi, F Griggio, F Iannelli
doaj  

Morula cells and non-self recognition in the compound ascidian Botryllus schlosseri

open access: yesInvertebrate Survival Journal, 2005
In the ascidian Botryllus schlosseri, we studied the effects of hemocyte incubation with foreign cells, such as bacteria, bacterial spores and yeast. In the presence of yeast and bacterial spores, morula cells, a common cell type in botryllid ascidians ...
L Ballarin   +4 more
doaj  

Dos nuevos registros de ascidias (Tunicata: Ascidiacea) para la costa continental de Chile Two new records of ascidians (Tunicata: Ascidiacea) for the continental coast of Chile

open access: yesRevista Chilena de Historia Natural, 2000
Las ascidias (Tunicata: Ascidiacea) Asterocarpa humilis (Heller, 1878) (Styelidae) y Molgula ficus (Macdonald, 1859) (Molgulidae) se registran por primera vez, para la costa de Chile continental.
MARCELA CLARKE, JUAN CARLOS CASTILLA
doaj  

Updated and Corrected List of Hosts of European Pinnotherids (Crustacea, Decapoda, and Pinnotheridae): Relationship between Number of Hosts and Distribution

open access: yesDiversity
The present work provides an updated and corrected list of hosts for the five European species of pinnotherid crabs, taking into consideration all recent published works as well as new data obtained in the present study.
Jose A. Cuesta   +6 more
doaj   +1 more source

Solitary Ascidians

open access: yes, 2021
Gabriel Krasovec   +3 more
openaire   +2 more sources

Detecting Symmetry in Ascidian Embryo

open access: yes2024 IEEE International Symposium on Biomedical Imaging (ISBI)
Modern microscopy techniques allow to acquire temporal sequences of 3D stacks. It provides a unprecedented means to image developing organs or embryos at the cellular level, but results in a huge quantity of data.Proposing efficient processing methods is then absolutely crucial. We are addressing here the study of ascidian embryo development.
Malandain, Grégoire, Lemaire, Patrick
openaire   +3 more sources

Insights on cytotoxic cells of the colonial ascidian Botryllus schlosseri

open access: yesInvertebrate Survival Journal, 2015
Morula cells (MCs) represent the most abundant circulating hemocyte of the compound ascidian Botryllus schlosseri. They are cytotoxic cells involved in the rejection reaction between contacting, genetically incompatible colonies.
N Franchi, L Ballarin, F Cima
doaj  

Focusing on Ciona intestinalis (Tunicata) innate immune system. Evolutionary implications

open access: yesInvertebrate Survival Journal, 2009
Phylogenetic analyses based on molecular data provide compelling evidence that ascidians are of critical importance for studying chordate immune system evolution. The Ciona intestinalis draft genome sequence allows searches for phylogenetic relationships,
N Parrinello
doaj  

Home - About - Disclaimer - Privacy