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Quantification of Macronutrients Intake in a Thermogenetic Neuronal Screen using Drosophila Larvae

Quantification of Macronutrients Intake in a Thermogenetic Neuronal Screen using Drosophila Larvae

Published on: June 11, 2020

Balancing macronutrient stoichiometry to alleviate eutrophication.

M I Stutter¹, D Graeber², C D Evans³

¹The James Hutton Institute, Craigiebuckler, Aberdeen AB15 8QH, UK.

The Science of the Total Environment

|April 10, 2018

Summary

This summary is machine-generated.

Restoring rivers requires balancing organic carbon (OC) with nitrogen (N) and phosphorus (P). Reconnecting natural OC sources like wetlands can improve nutrient processing and water quality, mitigating eutrophication.

Keywords:

Microbial cycling Nitrogen Organic carbon Phosphorus Stoichiometry Water pollution

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Quantification of Site-specific Protein Lysine Acetylation and Succinylation Stoichiometry Using Data-independent Acquisition Mass Spectrometry

Quantification of Site-specific Protein Lysine Acetylation and Succinylation Stoichiometry Using Data-independent Acquisition Mass Spectrometry

Published on: April 4, 2018

Area of Science:

Environmental Science
Aquatic Ecology
Biogeochemistry

Background:

Reactive nitrogen (N) and phosphorus (P) inputs cause aquatic eutrophication, impacting ecosystems and public health.
Current eutrophication management focuses on source control, largely neglecting the role of microbial nutrient processing.
Aquatic microbial communities possess significant potential for processing nutrients, influenced by the stoichiometry of organic carbon (OC), N, and P.

Purpose of the Study:

To investigate the stoichiometric ratios of bioavailable dissolved OC to N and P in rivers.
To assess the impact of OC-deficiency on aquatic microbial nutrient processing.
To propose stoichiometric rebalancing as a strategy for improving riverine nutrient retention and water quality.

Main Methods:

Global data synthesis of atomic ratios in rivers with urban and agricultural land use.
Analysis of heterotrophic microbial pathways, including denitrification and nutrient assimilation.
Evaluation of allochthonous and autotrophic OC contributions to nutrient processing.

Main Results:

Rivers with urban and agricultural land use often exhibit OC-deficiency relative to N and P, hindering microbial processing.
This imbalance overwhelms the natural capacity of rivers to retain N and P.
Stoichiometric rebalancing by reconnecting landscape OC sources shows potential for improved nutrient retention.

Conclusions:

Reconnecting rivers with beneficial OC sources like wetlands and riparian forests can enhance nutrient processing.
Stoichiometric rebalancing offers a promising approach to alleviate eutrophication and improve aquatic ecosystem health.
Further research is needed to address knowledge gaps regarding OC inputs and anoxia-mediated P desorption for safe management implementation.