Photosynthetic Protein-Based Edible Quality Formation in Various Porphyra dentata Harvests Determined by Label-Free Proteomics Analysis

Cells

Lizhen Ma¹  Chunsheng Li²  Ya Wei²  Shengjun Chen²  Yongqiang Zhao²  Laihao Li²  Xianqing Yang²  Mingchang Yang²  Bo Qi²  Yueqi Wang² 

[1] College of Food Science and Bioengineering, Tianjin Agricultural University, Tianjin 300384, China;Key Laboratory of Aquatic Product Processing, Ministry of Agriculture and Rural Affairs, National R&D Center for Aquatic Product Processing, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China;

关键词: different harvest;    formation mechanism;    photosynthetic;    Porphyra dentata;    proteomics;   

DOI  :  10.3390/cells11071136

来源: DOAJ

【 摘 要 】

The influence of harvest time on the photosynthetic protein quality of the red alga Porphyra dentata was determined using label-free proteomics. Of 2716 differentially abundant proteins that were identified in this study, 478 were upregulated and 374 were downregulated. The top enriched Kyoto Encyclopedia of Genes and Genomes (KEGG) and gene ontology (GO) pathways were metabolic processes and biosynthetic pathways such as photosynthesis, light harvesting, and carbon fixation in photosynthetic organisms. Nine important photosynthetic proteins were screened. Correlations among their expression levels were contrasted and verified by western blotting. PSII D1 and 44-kDa protein levels increased with later harvest time and increased light exposure. Specific photoprotective protein expression accelerated P. dentata growth and development. Biological processes such as photosynthesis and carbon cycling increased carbohydrate metabolism and decreased the total protein content. The results of the present study provide a scientific basis for the optimization of the culture and harvest of P. dentata.

【 授权许可】

Unknown