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2018-08-24

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cc-by (c) Torres-Águila, NP. et al., 2018
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/126062

Diatom bloom-derived biotoxins cause aberrant development and gene expression in the appendicularian chordate Oikopleura dioica.

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https://doi.org/10.1038/s42003-018-0127-2

Resum

Investigating environmental hazards than could affect appendicularians is of prime ecological interest because they are among the most abundant components of the mesozooplankton. This work shows that embryo development of the appendicularian Oikopleura dioica is compromised by diatom bloom-derived biotoxins, even at concentrations in the same range as those measured after blooms. Developmental gene expression analysis of biotoxin-treated embryos uncovers an aberrant golf ball-like phenotype affecting morphogenesis, midline convergence, and tail elongation. Biotoxins induce a rapid upregulation of defensome genes, and considerable delay and silencing of zygotic transcription of developmental genes. Upon a possible future intensification of blooms associated with ocean warming and acidification, our work puts an alert on the potential impact that an increase of biotoxins may have on marine food webs, and points to defensome genes as molecular biosensors that marine ecologists could use to monitor the genetic stress of natural populations exposed to microalgal blooms.

Matèries

Organismes aquàtics, Toxines, Genètica del desenvolupament, Diatomees, Expressió gènica

Matèries (anglès)

Aquatic organisms, Toxins, Developmental genetics, Diatoms, Gene expression

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Articles publicats en revistes (Genètica, Microbiologia i Estadística)
Articles publicats en revistes (Institut de Recerca de la Biodiversitat (IRBio))

Citació

TORRES ÁGUILA, Nuria paz, MARTÍ SOLANS, Josep, FERRÁNDEZ-ROLDÁN, Alfonso, ALMAZÁN, Alba, RONCALLI, Vittoria, D'ANIELLO, Salvatore, ROMANO, Giovanna, PALUMBO, Anna, ALBALAT RODRÍGUEZ, Ricard, CAÑESTRO GARCÍA, Cristian. Diatom bloom-derived biotoxins cause aberrant development and gene expression in the appendicularian chordate Oikopleura dioica.. _Communications Biology_. 2018. Vol. 1, núm. 121. [consulta: 20 de gener de 2026]. ISSN: 2399-3642. [Disponible a: https://hdl.handle.net/2445/126062]

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