Data/hora: 14/06/2024 01:37:51

Provedor de dados: 	5	
País: 	France	
Título: 	Intracellular Infection of Diverse Diatoms by an Evolutionary Distinct Relative of the Fungi	
Autores: 	Chambouvet, Aurélie; Monier, Adam; Maguire, Finlay; Itoïz, Sarah; Del Campo, Javier; Elies, Philippe; Edvardsen, Bente; Eikreim, Wenche; Richards, Thomas A.	
Data: 	2019-12	
Ano: 	2019	
Resumo: 	The Fungi are a diverse kingdom, dominating terrestrial environments and driving important ecologies. Although fungi, and the related Opisthosporidia, interact with photosynthetic organisms on land and in freshwater as parasites, symbionts, and/or saprotrophic degraders [1, 2], such interactions in the marine environment are poorly understood [3, 4, 5, 6, 7, 8]. One newly identified uncultured marine lineage has been named novel chytrid-like-clade-1 (NCLC1) [4] or basal-clone-group-I [5, 6]. We use ribosomal RNA (rRNA) encoding gene phylogenies to demonstrate that NCLC1 is a distinct branch within the Opisthosporidia (Holomycota) [7]. Opisthosporidia are a diverse and largely uncultured group that form a sister branch to the Fungi or, alternatively, the deepest branch within the Fungi, depending on how the boundary to this kingdom is inferred [9]. Using culture-free lineage-specific rRNA-targeted fluorescent in situ hybridization (FISH) microscopy, we demonstrate that NCLC1 cells form intracellular infection of key diatom species, establishing that intracellular colonization of a eukaryotic host is a consistent lifestyle across the Opisthosporidia [8, 9, 10, 11]. NCLC1 infection-associated loss and/or envelopment of the diatom nuclei infers a necrotrophic-pathogenic interaction. Diatoms are one of the most diverse and ecologically important phytoplankton groups, acting as dominant primary producers and driving carbon fixation and storage in many aquatic environments [12, 13, 14]. Our results provide insight into the diversity of microbial eukaryotes that interact with diatoms. We suggest that such interactions can play a key role in diatom associated ecosystem functions, such as the marine carbon pump through necrotrophic-parasitism, facilitating the export of diatoms to the sediment [15, 16].	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	https://archimer.ifremer.fr/doc/00591/70337/68391.pdf

https://archimer.ifremer.fr/doc/00591/70337/68392.pdf

https://archimer.ifremer.fr/doc/00591/70337/68393.pdf

DOI:10.1016/j.cub.2019.09.074

https://archimer.ifremer.fr/doc/00591/70337/	
Editor: 	Elsevier BV	
Formato: 	application/pdf	
Fonte: 	Current Biology (0960-9822) (Elsevier BV), 2019-12 , Vol. 29 , N. 23 , P. 4093-4101.e4	
Fonte: 	info:eu-repo/semantics/openAccess

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