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Updated: Jun 17, 2026
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A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis
Published on: August 26, 2021
[Studies on performance standard for hemolytic toxins in harmful bloom algae]
Yinghui Peng1, Jiesheng Liu, Hongye Li
1School of Life Science and Technology, Jinan University, Guangzhou 510632, China.
Wei Sheng Yan Jiu = Journal of Hygiene Research
|January 6, 2010
Summary
Optimizing harmful algal bloom toxin extraction, supersonic cell disruption and rabbit erythrocytes proved most effective for hemolytic toxin analysis. Proper storage at 0°C for 3 days preserves algal pellet activity.
Area of Science:
- Marine Biology
- Phycology
- Biochemistry
Context:
- Harmful algal blooms (HABs) pose ecological and economic threats.
- Certain algae, like Chattonella marina, produce potent hemolytic toxins.
- Standardized methods are needed for accurate toxin assessment.
Purpose:
- To establish a performance standard for extracting and quantifying hemolytic toxins from HAB algae.
- To optimize methods for cell disruption, toxin extraction, and activity determination.
Summary:
- The supersonic method (20 min at 200W, 4°C) was superior for breaking Chattonella marina cells compared to freeze-thaw.
- Extraction below 40°C and using rabbit erythrocytes maximized hemolytic activity detection.
- Algal pellets retained activity for 3 days when stored at 0°C.
Impact:
- Provides a refined protocol for consistent hemolytic toxin analysis.
- Facilitates better monitoring and risk assessment of HABs.
- Contributes to understanding algal toxin mechanisms and their environmental impact.
