Myo -inositol facilitates astaxanthin and lipid coproduction in Haematococcus pluvialis by regulating oxidative stress and ethylene signalling
Bioresource Technology, ISSN: 0960-8524, Vol: 366, Page: 128222
2022
- 11Citations
- 14Captures
- 1Mentions
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- Citations11
- Citation Indexes11
- 11
- CrossRef4
- Captures14
- Readers14
- 14
- Mentions1
- News Mentions1
- 1
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Kunming University of Science and Technology Reports Findings in Science (Myo-inositol facilitates astaxanthin and lipid coproduction in Haematococcus pluvialis by regulating oxidative stress and ethylene signalling)
2022 NOV 16 (NewsRx) -- By a News Reporter-Staff News Editor at Chemicals & Chemistry Daily -- New research on Science is the subject of
Article Description
In the present study, exogenous myo -inositol (MI) was applied to induce natural astaxanthin and biolipid accumulation in Haematococcus pluvialis. Under 200 μM MI, algal cells exhibited 62.11 % and 34.67 % increases in astaxanthin and lipid content, respectively, compared to the control. The carotenogenesis and lipogenesis genes were upregulated by induction of MI. Interestingly, MI addition elevated the ethylene (ETH) content and activated antioxidant enzyme-associated gene levels, which could be involved in alleviating oxidative stress. Further data showed that the ETH signal played a positive function in stimulating astaxanthin biosynthesis under MI induction. Supplementation with ethephon plus MI boosted the astaxanthin content to 33.08 ± 0.03 mg g −1 by further upregulating astaxanthin biosynthesis genes and blocking reactive oxidative species (ROS) levels, and vice versa under ETH inhibition. This study provides a potential induction approach for natural astaxanthin production and explains the role of ethylene signalling in regulating astaxanthin synthesis by H. pluvialis.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0960852422015553; http://dx.doi.org/10.1016/j.biortech.2022.128222; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85141320072&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/36328171; https://linkinghub.elsevier.com/retrieve/pii/S0960852422015553; https://dx.doi.org/10.1016/j.biortech.2022.128222
Elsevier BV
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