Divergent Patterns of Metabolite Expression in Red Seaweeds (<i>Devaleraea mollis</i> and <i>Palmaria hecatensis)</i> Following Nitrate and Ammonium Supplementation

Divergent Patterns of Metabolite Expression in Red Seaweeds (<i>Devaleraea mollis</i> and <i>Palmaria hecatensis)</i> Following Nitrate and Ammonium Supplementation

This study explores species-specific metabolic responses to different nitrogen-rich formulations in <i>Devaleraea mollis</i> and <i>Palmaria hecatensis</i>, highlighting distinct adaptive strategies. We evaluated the effects of Von Stosch Enrichment (VSE, nitrate-only), F/2 (...

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Bibliographic Details
Main Authors: Schery Umanzor, Jae Woo Jung, Muriel Dittrich, Jang K. Kim, Patrick Tomco, Zachary C. Redman, Monica Brandhuber
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Life
Subjects:
metabolomics
Pacific dulse
protein synthesis
rhodophytes
seaweed aquaculture
Online Access:https://www.mdpi.com/2075-1729/15/2/143
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Summary:This study explores species-specific metabolic responses to different nitrogen-rich formulations in <i>Devaleraea mollis</i> and <i>Palmaria hecatensis</i>, highlighting distinct adaptive strategies. We evaluated the effects of Von Stosch Enrichment (VSE, nitrate-only), F/2 (nitrate-only), and Jack’s Special (JS, nitrate and ammonium) on metabolic profiles. <i>D. mollis</i> exhibited elevated energy storage and growth-related metabolites, with JS enhancing creatine production for energy storage and regeneration, alongside increased DNA/RNA synthesis and cell division activity. This suggests <i>D. mollis</i> prioritizes rapid growth and energy demands, supporting broader ecological adaptability. Conversely, <i>P. hecatensis</i> showed higher expression of metabolites linked to amino acid metabolism and protein synthesis, indicating a focus on efficient nitrogen use for protein production, likely advantageous in low-light, high-turbidity conditions. Nitrogen sources significantly influence amino acid metabolism, with JS promoting broader amino acid production and VSE and F/2 stimulating specific metabolites. These species-specific metabolic patterns underscore the flexibility of <i>D. mollis</i> in energy use versus adaptations of <i>P. hecatensis</i> to protein synthesis pathways. These findings highlight species-specific nutrient formulations as essential for optimizing seaweed growth and metabolic traits in aquaculture.
ISSN:2075-1729

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