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Updated: Aug 3, 2025

Extracellular Multi-Unit Recording from the Olfactory Nerve of Teleosts

Extracellular Multi-Unit Recording from the Olfactory Nerve of Teleosts

Published on: October 6, 2020

Decoding algae under abnormal temperature variability with odorant as a responsive indicator.

Cheng Cen¹, Kejia Zhang¹, Tuqiao Zhang¹

¹College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China; Zhejiang Key Laboratory of Drinking Water Safety and Distribution Technology, Hangzhou 310058, China.

The Science of the Total Environment

|April 12, 2023

Summary

This summary is machine-generated.

Temperature fluctuations significantly impact harmful algal blooms, affecting odor production and cell growth. Understanding these temperature patterns is crucial for managing water quality and assessing algal risks.

Keywords:

Abnormal temperature variability Cell quota Odorant indicator Pigments Reactive oxygen species (ROS)

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Last Updated: Aug 3, 2025

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Published on: June 3, 2016

Area of Science:

Environmental Science
Microbiology
Water Quality Management

Background:

Harmful algal blooms degrade water quality and aesthetics.
Assessing risks from algal blooms is complicated by temperature variability.
The impact of temperature fluctuations on algal odor production is poorly understood.

Purpose of the Study:

To investigate the odor production patterns of Microcystis aeruginosa under varying temperature scenarios.
To determine how temperature variability influences β-cyclocitral yield and cell growth.
To explore the underlying mechanisms, including reactive oxygen species and pigments.

Main Methods:

Culturing Microcystis aeruginosa (FACHB 905) under different temperature variation patterns (acute increase, sequential increase, acute decrease, sequential decrease).
Quantifying total β-cyclocitral yield and cell quota.
Measuring specific growth rates and cell intensity.
Analyzing internal mechanisms involving reactive oxygen species and pigments.

Main Results:

Significant differences in total β-cyclocitral yield were observed across temperature scenarios.
Acute and sequential temperature increases led to higher β-cyclocitral production compared to decreases.
Cell growth was inhibited by acute temperature decrease, while sequential decrease offered some relief.
Cell quota variations were a major contributor to total yield response, more so than cell intensity.

Conclusions:

Temperature variability patterns, not just absolute temperatures, significantly influence algal behavior and odor production.
Algal-induced risks are complex and depend on the dynamics of temperature change over time.
These findings are critical for effective resource water quality management and risk assessment.