Results 61 to 70 of about 3,162 (180)

Is Botryllus a natural killer?

open access: yesThe Journal of Cell Biology, 2003
![][1] NK-like cells may have arisen to help sea squirt colonies reject each other (center). Khalturin Natural killer (NK) cells in mammals attack virus-infected and tumor cells that stop making major histocompatibility complex (MHC) proteins.
openaire   +2 more sources

Morphologic and Genetic Verification That Monterey Botryllus and Woods Hole Botryllus are the Same Species

open access: yesThe Biological Bulletin, 1990
To determine whether Monterey Botryllus and Woods Hole Botryllus are the same species, comparisons were made of their morphology, biology, and colony specificity. In addition, matings were carried out to ascertain whether fertile [Monterey x Woods Hole] F1 progeny could be obtained.
H C, Boyd, I L, Weissman, Y, Saito
openaire   +3 more sources

Biological invasions: a global assessment of geographic distributions, long‐term trends, and data gaps

open access: yesBiological Reviews, Volume 100, Issue 6, Page 2542-2583, December 2025.
ABSTRACT Biological invasions are one of the major drivers of biodiversity decline and have been shown to have far‐reaching consequences for society and the economy. Preventing the introduction and spread of alien species represents the most effective solution to reducing their impacts on nature and human well‐being.
Hanno Seebens   +64 more
wiley   +1 more source

Molecular Evolution and Gene Diversity of Dermatan Sulfate Sulfotransferases in Ascidians

open access: yesProteoglycan Research, Volume 3, Issue 4, October 2025.
ABSTRACT Ascidians (Chordata, Tunicata) are model organisms for studying molecules, particularly sulfated glycosaminoglycans (GAGs), due to their phylogenetic proximity to vertebrates and unique GAG variants. Over‐sulfated dermatan sulfate (DS) contributes to proteoglycan diversity and cellular processes in metazoans.
Vanessa de Sousa Rizzo‐Valente   +1 more
wiley   +1 more source

Multi‐Scaled Cellulosic Nanonetworks from Tunicates

open access: yesAdvanced Functional Materials, Volume 35, Issue 30, July 24, 2025.
Microbial and plant nanonetworks of cellulose have enabled a wide range of high‐performance yet sustainable materials. Herein, a third class of cellulosic nanonetworks is showcased by exploiting the only animal tissue‐producing cellulose nanofibers, i.e., ascidians. An ultrastructure including spherical cells and a microvasculature with diameters of 50–
Mano Govindharaj   +10 more
wiley   +1 more source

Predicting the Success of Invasive Species in the Great Bay Estuarine Researve [PDF]

open access: yes, 2007
The University of New Hampshire Zoology Department reports on a study designed to continue monitoring the distribution of invasive species in the Great Bay Estuary and to carry out laboratory experiments designed to test the effects of salinity on ...
Dijkstra, Jennifer A., Harris, Larry G.
core   +2 more sources

Studies on Japanese Botryllid Ascidians. I. A New Species of the Genus Botryllus from the Izu Islands [PDF]

open access: yes, 2001
An investigation was made of the morphology and life history of an unidentified botryllid ascidian that was first collected from the stony shore of Shikine Island of the Izu Islands in Japan.
Okuyama Makiko   +2 more
core   +1 more source

Variation of thermal tolerance during northward range expansion in the invasive golden star tunicate, Botryllus schlosseri

open access: yesConservation Physiology
Populations within a species can differ with respect to their thermal physiology, with variation often observed across gradients in environmental temperature with latitude or elevation. The tempo at which phenotypic plasticity and/or local adaptation are
Zachary J. C. Tobias   +2 more
semanticscholar   +1 more source

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

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   +1 more source

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