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Updated: Jul 16, 2026

High Throughput Microinjections of Sea Urchin Zygotes
Published on: January 21, 2014
Insight into the relationship between metabolite dynamic changes and microorganisms of sea urchin (S. intermedius)
Wen-Qiang Cai1,2, Cai-Yan Jiang1,2, Shan Shang1,2
1School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
Abstract:
Sea urchin gonads have high nutritional value and degenerate rapidly during storage. Previous assessment of the freshness of sea urchin gonads was based on experience without valid biochemical indicators. Thus, the current study is to find biochemical indicators representing the freshness of sea urchin gonads. Results showed that the dominant genera of sea urchin gonads were changed from Psychromonas, Ralstonia, and Roseimarinus to Aliivibrio, Psychrilyobacter, and Photobacterium. The differential metabolites of sea urchin gonads were mainly produced through amino acids metabolism. Among them, GC-TOF-MS based differential metabolites had the greatest enrichment in the valine, leucine and isoleucine biosynthesis pathway, while LC-MS based differential metabolites had the greatest enrichment in the alanine, aspartate and glutamate metabolism pathway. The growth of dominant genus (Aliivibrio) had a great influence on the production of differential metabolites. These results will provide valuable information for accurately judging the freshness and shelf life of sea urchin gonads.
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