Results 41 to 50 of about 466,897 (206)
High fusibility and chimera prevalence in an invasive colonial ascidian [PDF]
AbstractThe formation of chimeric entities through colony fusion has been hypothesized to favour colonisation success and resilience in modular organisms. In particular, it can play an important role in promoting the invasiveness of introduced species.
Casso M +3 more
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Faunistic Study of Ascidians (Chordata: Tunicata) From The northern Limit of Suez Canal, Port Said, Egypt [PDF]
Subphylum: Tunicata, Class Ascidiacea comprises ascidians either colonial or solitary species which have received little research attention in Port Said coasts, Egypt, despite their high biodiversity in the study area.
Sarah Elgendy +3 more
doaj +1 more source
Morula Cells and Histocompatibility in the Colonial Ascidian Botryllus schlosseri [PDF]
Abstract The role of morula cells (MC) in the formation of necrotic regions characterizing the rejection reaction between incompatible (i.e. nonfusible) colonies was investigated in the colonial ascidian Botryllus schlosseri. These blood cells share several chemical and histochemical properties with the pigment of the necrotic masses: both of them show
BALLARIN, LORIANO +2 more
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Colonial ascidians, Clavelina elegans (Oka, 1927) and Clavelina miniata Watanabe & Tokioka, 1973 are reported for the first time in Korean waters. As a result of this study, three species of the genus Clavelina are now recorded in Korean fauna. Clavelina
Seo, Su-Yuan, Rho, Boon-Jo
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IntroductionBoth colonial and solitary ascidians (Chordata, Ascidiacea) have been gathering attention due to their impact on coastal environments. The solitary ascidian Styela plicata was first observed along the coast of Israel in 2014. It is considered
Raz Platin, Noa Shenkar, Noa Shenkar
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COLONY SPECIFICITY IN THE ASCIDIAN,PEROPHORA SAGAMIENSIS
The presence of colony specificity, i.e., fusion-incompatibility, was revealed in Perophora sagamiensis.When two fusible stolons made a tip-to-side contact, a protrusion appeared from the lateral portion of a stolon. The tests and epidermides of both stolons fused and blood exchange was established.
Koyama, Hiromichi, Watanabe, Hiroshi
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A redescription of Syncarpa composita (Ascidiacea, Stolidobranchia) with an inference of its phylogenetic position within Styelidae [PDF]
Two species of styelid colonial ascidians in the genus Syncarpa Redikorzev, 1913 are known from the northwest Pacific. The valid status of the lesser known species, Syncarpa composita (Tokioka, 1951) (type locality: Akkeshi, Japan), is assessed here.
Naohiro Hasegawa, Hiroshi Kajihara
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Botrylloides niger (class Ascidiacea) is an invasive marine filter-feeding invertebrate that is believed to originate from the West Atlantic region. This species of colonial tunicate has been observed in several locations along the coasts of Israel and ...
Berivan Temiz +3 more
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ON THE OCCURRENCE OF COLONY SPECIFICITY IN SOME COMPOUND ASCIDIANS
1. The presence or absence of colony specificity, i.e., the recognition of self and not-self in colonial organisms, has been investigated with several species of compound Ascidians. If the reaction resulted from contact either between growing edges or between cut surfaces of colonies, fusion, rejection and indifference have been distinguished. Of these
Mukai, Hideo, Watanabe, Hiroshi
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Samples of colonial ascidians, Aplidium sp., have yielded three novel iodinated L-tyrosine alkaloids (1)-(3). The structures of these compounds were delineated on the basis of one and two-dimensional n.m.r.
JC Coll, AR Carroll, BF Bowden
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