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Tradeoffs between phage resistance and nitrogen fixation drive the evolution of genes essential for cyanobacterial heterocyst functionality.
Kolan, Dikla; Cattan-Tsaushu, Esther; Enav, Hagay; Freiman, Zohar; Malinsky-Rushansky, Nechama; Ninio, Shira; Avrani, Sarit.
Afiliación
  • Kolan D; Department of Evolutionary and Environmental Biology, The Institute of Evolution, University of Haifa, Mount Carmel, Haifa 3103301, Israel.
  • Cattan-Tsaushu E; Department of Evolutionary and Environmental Biology, The Institute of Evolution, University of Haifa, Mount Carmel, Haifa 3103301, Israel.
  • Enav H; Department of Evolutionary and Environmental Biology, The Institute of Evolution, University of Haifa, Mount Carmel, Haifa 3103301, Israel.
  • Freiman Z; Kinneret Limnological Laboratory (KLL) Israel Oceanographic and Limnological Research (IOLR), Migdal 1495000, Israel.
  • Malinsky-Rushansky N; Kinneret Limnological Laboratory (KLL) Israel Oceanographic and Limnological Research (IOLR), Migdal 1495000, Israel.
  • Ninio S; Kinneret Limnological Laboratory (KLL) Israel Oceanographic and Limnological Research (IOLR), Migdal 1495000, Israel.
  • Avrani S; Department of Evolutionary and Environmental Biology, The Institute of Evolution, University of Haifa, Mount Carmel, Haifa 3103301, Israel.
ISME J ; 18(1)2024 Jan 08.
Article en En | MEDLINE | ID: mdl-38365231
ABSTRACT
Harmful blooms caused by diazotrophic (nitrogen-fixing) Cyanobacteria are becoming increasingly frequent and negatively impact aquatic environments worldwide. Cyanophages (viruses infecting Cyanobacteria) can potentially regulate cyanobacterial blooms, yet Cyanobacteria can rapidly acquire mutations that provide protection against phage infection. Here, we provide novel insights into cyanophageCyanobacteria interactions by characterizing the resistance to phages in two species of diazotrophic Cyanobacteria Nostoc sp. and Cylindrospermopsis raciborskii. Our results demonstrate that phage resistance is associated with a fitness tradeoff by which resistant Cyanobacteria have reduced ability to fix nitrogen and/or to survive nitrogen starvation. Furthermore, we use whole-genome sequence analysis of 58 Nostoc-resistant strains to identify several mutations associated with phage resistance, including in cell surface-related genes and regulatory genes involved in the development and function of heterocysts (cells specialized in nitrogen fixation). Finally, we employ phylogenetic analyses to show that most of these resistance genes are accessory genes whose evolution is impacted by lateral gene transfer events. Together, these results further our understanding of the interplay between diazotrophic Cyanobacteria and their phages and suggest that a tradeoff between phage resistance and nitrogen fixation affects the evolution of cell surface-related genes and of genes involved in heterocyst differentiation and nitrogen fixation.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bacteriófagos / Nostoc Idioma: En Revista: ISME J Asunto de la revista: MICROBIOLOGIA / SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: Israel Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bacteriófagos / Nostoc Idioma: En Revista: ISME J Asunto de la revista: MICROBIOLOGIA / SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: Israel Pais de publicación: Reino Unido