dcsimg

Associations ( англиски )

добавил BioImages, the virtual fieldguide, UK
Animal / predator
adult of Erato voluta is predator of Botrylloides leachi

Animal / rests in
egg capsule of Trivia monacha rests inside nibbled hole common test of Botrylloides leachi

лиценца
cc-by-nc-sa-3.0
авторски права
BioImages
проект
BioImages
изворно
посети извор
соработничко мреж. место
BioImages, the virtual fieldguide, UK

Botrylloides leachii ( англиски )

добавил wikipedia EN

Botrylloides leachii is a colonial tunicate of the family Styelidae. Its unique methods of propagation and regeneration make it an ideal model organism for use in biological study of development, immunology, stem cells, and regeneration.[1]

Description

Botrylloides leachii is a colonial tunicate and can form a flat gelatinous encrusting sheet or a more massive structure. The individual zooids are about 4 mm (0.2 in) in diameter while the whole colony may reach 15 cm (6 in) or more across. Groups of zooids tend to form pairs of parallel chains; each zooid has its own inhalant siphon but the groups share an exhalant siphon. The tunic is some shade of grey, pink, orange, yellow or white; the siphons have white rims, and the exhalant siphons have white radial streaks.[2][3]

Distribution and habitat

Botrylloides leachii has a wide distribution, with a number of species previously thought to be separate having been shown to be identical and synonymised with it. Its range includes the Indo-Pacific region, the Caribbean Sea and the Eastern Atlantic Ocean including the North Sea and the Mediterranean Sea. It grows on rock, various hard substrates and large seaweeds, as well as loose on sand and detritus, at depths down to about 30 m (100 ft).[2][3]

Biology

Like all tunicates, Botrylloides leachii is a filter feeder that feeds by drawing water into its interior through the inhalant siphon, filtering out the edible particles with a mucus net, and expelling the water and waste products through the exhalant siphon. The sexes are separate in this species, and the gametes are liberated into the water column.[2] The larvae are planktonic at first but soon settle on the seabed where they undergo metamorphosis into zooids with adult organs. A founding zooid begins to form buds which grow into new zooids, which in turn bud again, and the colony expands. The zooids are connected by a network of blood vessels with minute finger-like processes called "ampullae". In time, the older zooids begin to degrade and become reabsorbed while the colony lives on.[1]

Whole-body regeneration is extremely unusual among chordates, but a colony of Botrylloides leachii can regenerate itself from a small piece of tissue. In a colony where all the zooids have been removed and the only structure that remains is the linking vascular tissue, blood cells aggregate to initiate repairs, white blood cells infiltrate the wounds and macrophage-like cells ingest the debris. Within ten days, the macrophages have disappeared from the circulation and the zooids have regenerated.[4] The ampullae are the seat of the regeneration process; researchers successfully grew 80 out of 95 sections of blood vessel with ampullae attached into new zooids, with a sexually mature zooid developing in about two weeks.[1]

References

  1. ^ a b c Liza Gross (2007). "From one to many and back again: a systemic signal triggers tunicate regeneration". PLOS Biology. 5 (4): e98. doi:10.1371/journal.pbio.0050098. PMC 1808483. PMID 20076668.
  2. ^ a b c Mitel, Cédric; Leon, Virginie (20 April 2014). "Botrylle; Botryllus leptus, Herdman, 1889" (in French). DORIS. Retrieved 15 April 2021.
  3. ^ a b Ager, Olwen. "A colonial sea squirt (Botrylloides leachii)". MarLIN. Retrieved 15 April 2021.
  4. ^ Blanchoud, Simon; Zondag, Lisa; Lamare, Miles D.; Wilson, Megan J. (2017). "Hematological analysis of the ascidian Botrylloides leachii (Savigny, 1816) during whole-body regeneration". The Biological Bulletin. 232 (3): 143–157. doi:10.1086/692841. PMID 28898595. S2CID 30091932.

лиценца
cc-by-sa-3.0
авторски права
Wikipedia authors and editors
изворно
посети извор
соработничко мреж. место
wikipedia EN

Botrylloides leachii: Brief Summary ( англиски )

добавил wikipedia EN

Botrylloides leachii is a colonial tunicate of the family Styelidae. Its unique methods of propagation and regeneration make it an ideal model organism for use in biological study of development, immunology, stem cells, and regeneration.

лиценца
cc-by-sa-3.0
авторски права
Wikipedia authors and editors
изворно
посети извор
соработничко мреж. место
wikipedia EN

Botrylloides leachii ( француски )

добавил wikipedia FR

Botrylloides leachii, le botrylle de Leach, est une espèce d'ascidies de la famille des Styelidae.

Sa façon singulière de se propager et de se régénérer la fait considérer comme un modèle idéal pour des études biologiques sur le développement, l'immunologie, les cellules souches et la régénération.

Description

Cette ascidie composée, encroutante, ressemble à Botryllus schlosseri mais les individus sont groupés en doubles rangées de part et d'autre d'un long canal exhalant médian commun. Les couleurs sont ternes et variées : gris, jaune, rose, brun.

 src=
Colonie de Botrylloides leachii

Références

лиценца
cc-by-sa-3.0
авторски права
Auteurs et éditeurs de Wikipedia
изворно
посети извор
соработничко мреж. место
wikipedia FR

Botrylloides leachii: Brief Summary ( француски )

добавил wikipedia FR

Botrylloides leachii, le botrylle de Leach, est une espèce d'ascidies de la famille des Styelidae.

Sa façon singulière de se propager et de se régénérer la fait considérer comme un modèle idéal pour des études biologiques sur le développement, l'immunologie, les cellules souches et la régénération.

лиценца
cc-by-sa-3.0
авторски права
Auteurs et éditeurs de Wikipedia
изворно
посети извор
соработничко мреж. место
wikipedia FR

Botrylloides leachii ( италијански )

добавил wikipedia IT

Botrylloides leachii (Savigny, 1816) è una ascidia coloniale della famiglia Styelidae.[1]

Descrizione

Botryllus leachii.jpg

È una specie coloniale che si presenta in agglomerati nastriformi, di colore variabile, spesso bruno, dalla consistenza molle e gelatinosa.

Può essere confuso con Botryllus schlosseri.

Distribuzione e habitat

È comune nel mar Mediterraneo e nell'oceano Atlantico orientale, fino al mar del Nord.

Note

  1. ^ (EN) Botrylloides leachii, in WoRMS (World Register of Marine Species). URL consultato il 3 ottobre 2019.

 title=
лиценца
cc-by-sa-3.0
авторски права
Autori e redattori di Wikipedia
изворно
посети извор
соработничко мреж. место
wikipedia IT

Botrylloides leachii: Brief Summary ( италијански )

добавил wikipedia IT

Botrylloides leachii (Savigny, 1816) è una ascidia coloniale della famiglia Styelidae.

лиценца
cc-by-sa-3.0
авторски права
Autori e redattori di Wikipedia
изворно
посети извор
соработничко мреж. место
wikipedia IT

Botrylloides leachii ( холандски; фламански )

добавил wikipedia NL

Botrylloides leachii is een zakpijpensoort uit de familie van de Styelidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1816 door Savigny.

Bronnen, noten en/of referenties
  1. Sanamyan, K. (2013). Botrylloides leachii (Savigny, 1816). In: Shenkar, N.; Gittenberger, A.; Lambert, G.; Rius, M.; Moreira Da Rocha, R.; Swalla, B.J.; Turron, X. (2013) Ascidiacea World Database. Geraadpleegd via: World Register of Marine Species op http://www.marinespecies.org/aphia.php?p=taxdetails&id=250081
Geplaatst op:
16-03-2013
Dit artikel is een beginnetje over biologie. U wordt uitgenodigd om op bewerken te klikken om uw kennis aan dit artikel toe te voegen. Beginnetje
лиценца
cc-by-sa-3.0
авторски права
Wikipedia-auteurs en -editors
изворно
посети извор
соработничко мреж. место
wikipedia NL