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Perineuronal nets in HVC and plasticity in male canary song

Cornez, Gilles ; Valle, Shelley ; dos Santos, Ednei Barros ; Chiver, Ioana ; Müller, Wendt ; Ball, Gregory F ; Cornil, Charlotte A ; Balthazart, Jacques Bartell, Paul A.

PloS one, 2021-08, Vol.16 (8), p.e0252560-e0252560 [Periódico revisado por pares]

San Francisco: Public Library of Science

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Título:
Perineuronal nets in HVC and plasticity in male canary song
Autor: Cornez, Gilles ; Valle, Shelley ; dos Santos, Ednei Barros ; Chiver, Ioana ; Müller, Wendt ; Ball, Gregory F ; Cornil, Charlotte A ; Balthazart, Jacques
Bartell, Paul A.
Assuntos: Autumn ; Biology and Life Sciences ; Birds ; Breeding seasons ; Canaries ; Chondroitin ABC lyase ; Computer and Information Sciences ; Control systems ; Crystallization ; Degradation ; Developmental stages ; Engineering and Technology ; Environmental aspects ; Enzymes ; Experiments ; Laboratories ; Learning ; Life sciences ; Males ; Medicine and Health Sciences ; Memory ; Multidisciplinary ; Nets ; Neurosciences ; Neurosciences & behavior ; Neurosciences & comportement ; Nuclei ; Ontogeny ; Perineuronal nets ; Physical Sciences ; Physiological aspects ; Physiology ; Sciences du vivant ; Sciences sociales & comportementales, psychologie ; Seasonal variations ; Sensorimotor system ; Social & behavioral sciences, psychology ; Social Sciences ; Song control nuclei ; Songbirds ; Songs ; Structure ; Testosterone ; Vocalization behavior ; Zoologie ; Zoology
É parte de: PloS one, 2021-08, Vol.16 (8), p.e0252560-e0252560
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
scopus-id:2-s2.0-85113861266
Competing Interests: The authors have declared that no competing interests exist.
Descrição: Songbirds learn their vocalizations during developmental sensitive periods of song memorization and sensorimotor learning. Some seasonal songbirds, called open-ended learners, recapitulate transitions from sensorimotor learning and song crystallization on a seasonal basis during adulthood. In adult male canaries, sensorimotor learning occurs each year in autumn and leads to modifications of the syllable repertoire during successive breeding seasons. We previously showed that perineuronal nets (PNN) expression in song control nuclei decreases during this sensorimotor learning period. Here we explored the causal link between PNN expression in adult canaries and song modification by enzymatically degrading PNN in HVC, a key song control system nucleus. Three independent experiments identified limited effects of the PNN degradation in HVC on the song structure of male canaries. They clearly establish that presence of PNN in HVC is not required to maintain general features of crystallized song. Some suggestion was collected that PNN are implicated in the stability of song repertoires but this evidence is too preliminary to draw firm conclusions and additional investigations should consider producing PNN degradations at specified time points of the seasonal cycle. It also remains possible that once song has been crystallized at the beginning of the first breeding season, PNN no longer play a key role in determining song structure; this could be tested by treatments with chondroitinase ABC at key steps in ontogeny. It would in this context be important to develop multiple stereotaxic procedures allowing the simultaneous bilateral degradation of PNN in several song control nuclei for extended periods.
Editor: San Francisco: Public Library of Science
Idioma: Inglês

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Perineuronal nets in HVC and plasticity in male canary song

Cornez, Gilles ; Valle, Shelley ; dos Santos, Ednei Barros ; Chiver, Ioana ; Müller, Wendt ; Ball, Gregory F ; Cornil, Charlotte A ; Balthazart, Jacques Bartell, Paul A.

San Francisco: Public Library of Science

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