Results 71 to 80 of about 3,807 (163)
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
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]
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
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
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
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
Detecting Symmetry in Ascidian Embryo
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
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
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

