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Sepehr Bardi

As seen in: Europa Press, BioRxiv
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Articles

Using gene complementation to identify a SulP-family bicarbonate transporter in an N2-fixing cyanobacterial endosymbiont of an open ocean diatom

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By Mercedes Nieves-Morion, Sepehr Bardi, Ruben Romero-Garcia, Luis Lopez-Maury
| BioRxiv
Abstract The Diatom Diazotrophic Associations (DDAs) contribute significantly to new and primary production in oligotrophic oceans. These symbioses involve diatoms and N2-fixing, heterocyst-forming cyanobacteria of the genus Richelia, both partners being photosynthetic. Richelia euintracellularis resides in the cytoplasm of Hemiaulus hauckii, whereas Richelia intracellularis is periplasmic in Rhizosolenia clevei.
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Asociación de la diatomea 'Hemiaulus hauckii' y la cianobacteria 'Richelia intracellularis' del Mediterráneo oriental. La micrografía de la izquierda muestra a la diatomea, mientras que la de la derecha identifica a la cianobacteria en su interior

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By Sepehr Bardi
| Europa Press Verified
Asociación de la diatomea 'Hemiaulus hauckii' y la cianobacteria 'Richelia intracellularis' del Mediterráneo oriental. La micrografía de la izquierda muestra a la diatomea, mientras que la de la derecha identifica a la cianobacteria en su interior Código: 5354767 Fecha: 26/07/2023 Dimensiones: 598 x 186 (0.02MB) Fotos del Tema: 1 Pie de Foto: Asociación de la diatomea 'Hemiaulus hauckii' y la cianobacteria 'Richelia intracellularis' del Mediterráneo oriental.
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Heterologous expression of genes from a heterocystous cyanobacterial endosymbiont highlights organic carbon exchange with its diatom host

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By Sergio Camargo, Enrique Flores, Mercedes Nieves-Morion, Sepehr Bardi
| BioRxiv
New Results doi: https://doi.org/10.1101/2023.01.23.525141 Abstract A few genera of diatoms are widespread and thrive in low nutrient waters of the open ocean due to their close association with N2-fixing, filamentous heterocyst-forming cyanobacteria. In one of these symbioses, the symbiont, Richelia euintracellularis, has penetrated the cell envelope of the host, Hemiaulus hauckii, and lives inside the host cytoplasm.
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