Outstanding enrichment of ladderane lipids in anammox bacteria: overlooked effect of pH

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F24%3A43930173" target="_blank" >RIV/60461373:22320/24:43930173 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22330/24:43930173 RIV/60461373:22340/24:43930173
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0301479724039483?utm_campaign=STMJ_219742_AUTH_SERV_PA&utm_medium=email&utm_acid=96783346&SIS_ID=&dgcid=STMJ_219742_AUTH_SERV_PA&CMX_ID=&utm_in=DM533665&utm_source=AC_" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0301479724039483?utm_campaign=STMJ_219742_AUTH_SERV_PA&utm_medium=email&utm_acid=96783346&SIS_ID=&dgcid=STMJ_219742_AUTH_SERV_PA&CMX_ID=&utm_in=DM533665&utm_source=AC_</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jenvman.2024.123961" target="_blank" >10.1016/j.jenvman.2024.123961</a>

Result language
angličtina
Original language name
Outstanding enrichment of ladderane lipids in anammox bacteria: overlooked effect of pH
Original language description
Ladderane lipids synthesised by anammox bacteria hold significant potential for applications in jet fuel, drug delivery, and optoelectronics. Despite the widespread use of anammox bacteria in nitrogen removal from wastewater, the optimal conditions for maximising ladderane production remain unclear, limiting their broader application. To address this, we operated a fed-batch bioreactor with anammox bacteria, gradually adjusting the pH from 6.5 to 7.5 while regularly sampling for microbial community composition (Illumina sequencing), proteins, and ladderane lipids (UHPLC-HRMS). Our findings reveal that ladderane production positively correlates with rising pH increasing nearly fivefold as pH rose from 6.5 to 7.5, with a notable shift towards lipids containing two ladderane alkyl chains at higher pH. However, the conditions at an alkaline pH range also induced mild stress in anammox bacteria, as evidenced by our proteomic and microbial community data. Therefore, we propose maintaining a pH above 7.5 to enrich ladderane-rich anammox biomass but emphasise the need forgradual adaptation. This approach could optimise anammox installations for producing high-value ladderane lipids from wastewater.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20801 - Environmental biotechnology

Project
<a href="/en/project/GA20-13766S" target="_blank" >GA20-13766S: Unique ladderane phospholipids of anammox bacteria: potential valuable resource from sewage</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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