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Trade-off between sex and growth in diatoms: Molecular mechanisms and demographic implications

Diatoms are fast-growing and winning competitors in aquatic environments, possibly due to optimized growth performance. However, their life cycles are complex, heteromorphic, and not fully understood. Here, we report on the fine control of cell growth and physiology during the sexual phase of the ma...

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Autores principales: Annunziata, Rossella, Mele, Bruno Hay, Marotta, Pina, Volpe, Massimiliano, Entrambasaguas, Laura, Mager, Svenja, Stec, Krzysztof, d’Alcalà, Maurizio Ribera, Sanges, Remo, Finazzi, Giovanni, Iudicone, Daniele, Montresor, Marina, Ferrante, Maria Immacolata
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8769554/
https://www.ncbi.nlm.nih.gov/pubmed/35044817
http://dx.doi.org/10.1126/sciadv.abj9466
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author Annunziata, Rossella
Mele, Bruno Hay
Marotta, Pina
Volpe, Massimiliano
Entrambasaguas, Laura
Mager, Svenja
Stec, Krzysztof
d’Alcalà, Maurizio Ribera
Sanges, Remo
Finazzi, Giovanni
Iudicone, Daniele
Montresor, Marina
Ferrante, Maria Immacolata
author_facet Annunziata, Rossella
Mele, Bruno Hay
Marotta, Pina
Volpe, Massimiliano
Entrambasaguas, Laura
Mager, Svenja
Stec, Krzysztof
d’Alcalà, Maurizio Ribera
Sanges, Remo
Finazzi, Giovanni
Iudicone, Daniele
Montresor, Marina
Ferrante, Maria Immacolata
author_sort Annunziata, Rossella
collection PubMed
description Diatoms are fast-growing and winning competitors in aquatic environments, possibly due to optimized growth performance. However, their life cycles are complex, heteromorphic, and not fully understood. Here, we report on the fine control of cell growth and physiology during the sexual phase of the marine diatom Pseudo-nitzschia multistriata. We found that mating, under nutrient replete conditions, induces a prolonged growth arrest in parental cells. Transcriptomic analyses revealed down-regulation of genes related to major metabolic functions from the early phases of mating. Single-cell photophysiology also pinpointed an inhibition of photosynthesis and storage lipids accumulated in the arrested population, especially in gametes and zygotes. Numerical simulations revealed that growth arrest affects the balance between parental cells and their siblings, possibly favoring the new generation. Thus, in addition to resources availability, life cycle traits contribute to shaping the species ecological niches and must be considered to describe and understand the structure of plankton communities.
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spelling pubmed-87695542022-02-01 Trade-off between sex and growth in diatoms: Molecular mechanisms and demographic implications Annunziata, Rossella Mele, Bruno Hay Marotta, Pina Volpe, Massimiliano Entrambasaguas, Laura Mager, Svenja Stec, Krzysztof d’Alcalà, Maurizio Ribera Sanges, Remo Finazzi, Giovanni Iudicone, Daniele Montresor, Marina Ferrante, Maria Immacolata Sci Adv Earth, Environmental, Ecological, and Space Sciences Diatoms are fast-growing and winning competitors in aquatic environments, possibly due to optimized growth performance. However, their life cycles are complex, heteromorphic, and not fully understood. Here, we report on the fine control of cell growth and physiology during the sexual phase of the marine diatom Pseudo-nitzschia multistriata. We found that mating, under nutrient replete conditions, induces a prolonged growth arrest in parental cells. Transcriptomic analyses revealed down-regulation of genes related to major metabolic functions from the early phases of mating. Single-cell photophysiology also pinpointed an inhibition of photosynthesis and storage lipids accumulated in the arrested population, especially in gametes and zygotes. Numerical simulations revealed that growth arrest affects the balance between parental cells and their siblings, possibly favoring the new generation. Thus, in addition to resources availability, life cycle traits contribute to shaping the species ecological niches and must be considered to describe and understand the structure of plankton communities. American Association for the Advancement of Science 2022-01-19 /pmc/articles/PMC8769554/ /pubmed/35044817 http://dx.doi.org/10.1126/sciadv.abj9466 Text en Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Earth, Environmental, Ecological, and Space Sciences
Annunziata, Rossella
Mele, Bruno Hay
Marotta, Pina
Volpe, Massimiliano
Entrambasaguas, Laura
Mager, Svenja
Stec, Krzysztof
d’Alcalà, Maurizio Ribera
Sanges, Remo
Finazzi, Giovanni
Iudicone, Daniele
Montresor, Marina
Ferrante, Maria Immacolata
Trade-off between sex and growth in diatoms: Molecular mechanisms and demographic implications
title Trade-off between sex and growth in diatoms: Molecular mechanisms and demographic implications
title_full Trade-off between sex and growth in diatoms: Molecular mechanisms and demographic implications
title_fullStr Trade-off between sex and growth in diatoms: Molecular mechanisms and demographic implications
title_full_unstemmed Trade-off between sex and growth in diatoms: Molecular mechanisms and demographic implications
title_short Trade-off between sex and growth in diatoms: Molecular mechanisms and demographic implications
title_sort trade-off between sex and growth in diatoms: molecular mechanisms and demographic implications
topic Earth, Environmental, Ecological, and Space Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8769554/
https://www.ncbi.nlm.nih.gov/pubmed/35044817
http://dx.doi.org/10.1126/sciadv.abj9466
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