Nitrogen limitation and hydrogen peroxide act synergistically to enhance lipids accumulation via ROS/Ca2+ dependent mechanism in Chlorella sorokiniana

Liufu, Wang; Di, Ming; Pan, Yingying; Shi, Liqiu; Wenzhi, Wei

doi:10.1016/j.algal.2023.102974

Cited by 10 publications

(2 citation statements)

References 31 publications

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“…LPA is combined with acyl-CoA again to produce phosphatidic acid (PA) through acyltransferase. Finally, PA is transformed to TAG via phosphatidic acid phosphatase (PLA) and diacylglycerol acyltransferase [ 52 ].…”

Section: Key Pathways Of Lipid Biosynthesis In Microalgaementioning

confidence: 99%

The Metabolism of Reactive Oxygen Species and Their Effects on Lipid Biosynthesis of Microalgae

Wang

Tian

Pan

et al. 2023

IJMS

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Microalgae have outstanding abilities to transform carbon dioxide (CO2) into useful lipids, which makes them extremely promising as renewable sources for manufacturing beneficial compounds. However, during this process, reactive oxygen species (ROS) can be inevitably formed via electron transfers in basal metabolisms. While the excessive accumulation of ROS can have negative effects, it has been supported that proper accumulation of ROS is essential to these organisms. Recent studies have shown that ROS increases are closely related to total lipid in microalgae under stress conditions. However, the exact mechanism behind this phenomenon remains largely unknown. Therefore, this paper aims to introduce the production and elimination of ROS in microalgae. The roles of ROS in three different signaling pathways for lipid biosynthesis are then reviewed: receptor proteins and phosphatases, as well as redox-sensitive transcription factors. Moreover, the strategies and applications of ROS-induced lipid biosynthesis in microalgae are summarized. Finally, future perspectives in this emerging field are also mentioned, appealing to more researchers to further explore the relative mechanisms. This may contribute to improving lipid accumulation in microalgae.

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Section: Key Pathways Of Lipid Biosynthesis In Microalgaementioning

confidence: 99%

The Metabolism of Reactive Oxygen Species and Their Effects on Lipid Biosynthesis of Microalgae

Wang

Tian

Pan

et al. 2023

IJMS

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“…The activity of the TRX domain is influenced by Ca 2+ binding, which is crucial for the downstream binding and reduction of PRX1 in oxidative stress responses. ROS and Ca 2+ signalling pathways are linked in the regulation of lipid accumulation in response to a combination of nitrogen limitation and oxidative stress in Chlorella sorokiniana (Liufu et al, 2023). The two RBOH isoforms in Marchantia polymorpha have conserved C‐terminal phosphorylation sites, which may serve as sites of Ca 2+ ‐dependent regulation (Bánfi et al, 2004; Kimura et al, 2020; Marchetti et al, 2021).…”

Section: Organellar Signalling Systemsmentioning

confidence: 99%

The integration of reactive oxygen species (ROS) and calcium signalling in abiotic stress responses

Ravi

Foyer

Pandey

2023

Plant Cell & Environment

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Reactive oxygen species (ROS) and calcium (Ca2+) signalling are interconnected in the perception and transmission of environmental signals that control plant growth, development and defence. The concept that systemically propagating Ca2+ and ROS waves function together with electric signals in directional cell‐to‐cell systemic signalling and even plant‐to‐plant communication, is now firmly imbedded in the literature. However, relatively few mechanistic details are available regarding the management of ROS and Ca2+ signals at the molecular level, or how synchronous and independent signalling might be achieved in different cellular compartments. This review discusses the proteins that may serve as nodes or connecting bridges between the different pathways during abiotic stress responses, highlighting the crosstalk between ROS and Ca2+ pathways in cell signalling. We consider putative molecular switches that connect these signalling pathways and the molecular machinery that achieves the synergistic operation of ROS and Ca2+ signals.

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ROS and Ca2+ signaling involved in important lipid changes of Chlorella pyrenoidosa under nitrogen stress conditions

Wang,

Shi,

Pan

et al. 2024

Planta

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Nitrogen limitation and hydrogen peroxide act synergistically to enhance lipids accumulation via ROS/Ca2+ dependent mechanism in Chlorella sorokiniana

Cited by 10 publications

References 31 publications

The Metabolism of Reactive Oxygen Species and Their Effects on Lipid Biosynthesis of Microalgae

The Metabolism of Reactive Oxygen Species and Their Effects on Lipid Biosynthesis of Microalgae

The integration of reactive oxygen species (ROS) and calcium signalling in abiotic stress responses

ROS and Ca2+ signaling involved in important lipid changes of Chlorella pyrenoidosa under nitrogen stress conditions

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