Alteration of Phascolosoma esculenta heat shock protein 90 expression under heavy metal exposure and thermal stress

Bioactive Ingredients, Functions, and Development Strategies of Phascolosoma esculenta-An Edible Marine Organism: A Review

Marine organisms represent a significant source for foods and medicines. Phascolosoma esculenta as an edible marine organism grows in the intertidal zone along the southern coast of China. It is high in protein and low in fat with excellent nutritional value. Various studies have shown that P. esculenta contains numerous bioactive ingredients with potential physiological functions, including anti-inflammatory, antioxidant, liver and cardiovascular protective, cerebrovascular protective, and immune-regulating properties. Moreover, P. esculenta possesses a range of antioxidant proteins that mitigate oxidative damage resulting from environmental stress, making it a candidate for use in environmental monitoring. Therefore, it holds significant potential across various sectors, including food, medicine, nutrition and health care, and environmental monitoring. This paper concludes by summarizing the bioactive ingredients and functions of P. esculenta as well as various research technologies related to marine functional foods, aiming to provide a foundation for developing P. esculenta into green foods or medicinal products.

Transcriptome response to copper heavy metal stress in hard-shelled mussel (Mytilus coruscus)

The hard-shelled mussel (Mytilus coruscus) has considerably one of the most economically important marine shellfish worldwide and considered as a good invertebrate model for ecotoxicity study for a long time. In the present study, we used Illumina sequencing technology (HiSeq2000) to sequence, assemble and annotate the transcriptome of the hard-shelled mussel which challenged with copper pollution. A total of 21,723,913 paired-end clean reads (NCBI SRA database SRX1411195) were generated from HiSeq2000 sequencer and 96,403 contigs (with N50 = 1118 bp) were obtained after de novo assembling with Trinity software. Digital gene expression analysis reveals 1156 unigenes are upregulated and 1681 unigenes are downregulated when challenged with copper. By KEGG pathway enrichment analysis, we found that unigenes in four KEGG pathways (aminoacyl-tRNA biosynthesis, apoptosis, DNA replication and mismatch repair) show significant differential expressed between control and copper treated groups. We hope that the gill transcriptome in copper treated hard-shelled mussel can give useful information to understand how mussel handles with heavy metal stress at molecular level.