Macronucleo
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A macronucleus (formerly also meganucleus) is the larger type of nucleus in ciliates. Macronuclei are polyploid and undergo direct division without mitosis. It controls the non-reproductive cell functions, such as metabolism. During conjugation, the macronucleus disintegrates, and a new one is formed by karyogamy of the micronuclei.
In the Vinony graph
Within Vinony's link graph, Macronucleo is referenced by 110 other articles, and connects out to fungi, parasitism and mitotic cell cycle.
Vinony files it under Cell nucleus and Ciliate biology.
Its subject is documented across 15 Wikipedia language editions.
Research
1,322 papers- Evolution of amitosis of the ciliate macronucleus: gain of the capacity to divide.The Journal of protozoology · 1991
- Origin, structure and function of millions of chromosomes present in the macronucleus of unicellular eukaryotic ciliate, Oxytricha trifallax: a model organism for transgenerationally programmed genome rearrangements.Journal of genetics · 2015
- The Ciliary Protein IFT57 in the Macronucleus of Paramecium.The Journal of eukaryotic microbiology · 2018
- Rearrangement of macronucleus chromosomes correspond to TAD-like structures of micronucleus chromosomes in Tetrahymena thermophila.Genome research · 2020
- Macronucleus structure and macronucleus development in hypotrichous ciliates.The International journal of developmental biology · 1996
via PubMed
Wikidata facts
- Subclass of
- nucleus
Show 3 more facts
- facet of
- Nuclear dimorphism
- found in taxon
- Ciliophora
- exact match
- purl.obolibrary.org/obo/GO_0031039
Sources (3)
via Wikidata · CC0
Article · Italiano
Il macronucleo è il nucleo più grande degli organismi che presentano dimorfismo nucleare, come i ciliati. I macronuclei sono poliploidi e subiscono la divisione diretta (scissione binaria) senza mitosi. Controllano le funzioni cellulari non legate alla riproduzione, quali lo sviluppo e il metabolismo. Il macronucleo contiene centinaia di cromosomi, ciascuno presente in molte copie.
Abstract from DBpedia / Wikipedia · CC BY-SA