ArticleWorld journal of microbiology & biotechnology2021
Ampicillin used in aseptic processing influences the production of pigments and fatty acids in Chlorella sorokiniana.
Article in World journal of microbiology & biotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Ampicillin sodium salt (AMP) is commonly and effectively used to prevent bacterial infection in algal culture, but the response of algal strains to AMP has not been investigated. In this study, Chlorella sorokiniana was selected to evaluate the influence of AMP on algae. AMP enhanced the contents of chlorophyll and two fatty acids, myristic acid (C22:1N9) and tetracosanoic acid (C6:0), but inhibited the growth, carotenoid production, and contents of 16 fatty acids in C. sorokiniana. A global transcriptome analysis from experimental data identified 3 825 upregulated and 1 432 downregulated differentially expressed genes (DEGs) in C. sorokiniana. The upregulated DEGs, such as hemB/alaD, mmaB/pduO, cox15/ctaA, fxN, cpoX/hemF, and earS/gltX, were enriched in the porphyrin and chlorophyll metabolism pathways, whereas the downregulated DEGs, including lcyB (crtL1), crtY (lcyE, crtL2), lut1 (CYP97C1), z-isO, crtZ and crtisO (crtH), were enriched in the carotenoid biosynthesis pathway, and the downregulated DEGs, abH, fadD, fabF, acsL, fabG, and accD were enriched in the fatty acid biosynthesis pathway. Thus, the use of AMP to obtain an axenic strain revealed that AMP might affect the regulatory dynamics and the results of the metabolic process in C. sorokiniana. The data obtained in the study provide foundational information for algal purification and aseptic processing.
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