Differential Analysis Of Post-harvest Lipid Metabolism In Oil Palm

LI Xinyu; LIU Xiaoyu; LI Qihong; ZHOU Lixia; LI Rui; FU Dengqiang; CAO Hongxing

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LI X Y, LIU X Y, LI Q H, et al. Differential Analysis Of Post-harvest Lipid Metabolism In Oil Palm [J]. Fujian Journal of Agricultural Sciences，2024，39（9）：1−12

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LI X Y, LIU X Y, LI Q H, et al. Differential Analysis Of Post-harvest Lipid Metabolism In Oil Palm [J]. Fujian Journal of Agricultural Sciences，2024，39（9）：1−12

LI X Y, LIU X Y, LI Q H, et al. Differential Analysis Of Post-harvest Lipid Metabolism In Oil Palm [J]. Fujian Journal of Agricultural Sciences，2024，39（9）：1−12

Citation:

LI X Y, LIU X Y, LI Q H, et al. Differential Analysis Of Post-harvest Lipid Metabolism In Oil Palm [J]. Fujian Journal of Agricultural Sciences，2024，39（9）：1−12

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Differential Analysis Of Post-harvest Lipid Metabolism In Oil Palm

LI Xinyu^{1, 2
,},
LIU Xiaoyu^{1, 2},
LI Qihong^{1, 2},
ZHOU Lixia^{1, 2},
LI Rui^{1, 2},
FU Dengqiang^{1, 2},
CAO Hongxing^{1, 2
,
,}

1.
National Key Laboratory for Tropical Crop Breeding, Chinese Academy of Tropical Agricultural Sciences, Haikou，Hainan　571101, China
2.
Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang，Hainan　571339, China

Received Date: 2024-05-27
Rev Recd Date: 2024-08-16

Available Online: 2024-11-11

Abstract

Abstract

Objective To explore the mechanism of lipid synthesis and accumulation in thin shelled oil palm fruits. Method Thin shelled oil palm fruits from different post harvest stages were selected [fresh fruits freshly harvested 185 days after pollination (T1), harvested 24 hours after harvest (T2), and harvested 36 hours after harvest (T3)]. We used LC-MS/MS and RNA-seq techniques to determine and analyze the dynamic changes of each lipid metabolite and differentially expressed genes in oil palm mesocarp during raging. Result During fruit development, 5 lipid classes, 23 lipid subclasses, and 520 lipid monomer molecules were identified. Aldehyde dehydrogenase (ALDH7A1, ALDH2), monoacylglycerol lipase (MGL), phospholipase A1 (PLA1), and glycerophosphodiester phosphodiesterase (GDPD1) may affect the hydrolysis of phosphatidylcholine (PC), thereby affecting the oxidation of lipids in oil palm flesh; By hydrolyzing glycerophosphate choline (GPC), the content of PC is affected; Lipophosphatase (LPP) promotes the synthesis of phosphates and glycerophospholipids; The expression of chlorophyll may be related to the content of chlorophyll in the matrix. The joint analysis results showed that aldehyde dehydrogenase (ALDH7A1, ALDH2), monoacylglycerol lipase (MGL), and phospholipase A1 (PLA1) were significantly negatively correlated with glycerophospholipids such as diacylglycerol trimethyl homoserine (DGTS), phosphatidic acid (PA), phosphatidylinositol (PI), phosphatidylcholine (PC), phosphatidylglycerol (PG), phosphatidylethanolamine (PE), and significantly positively correlated with palmitic acid; GDPD1, lipophosphate phosphatase (LPP), and digalactosylglycerol synthase (DGD1) are significantly positively correlated with glycerophospholipid substances such as DGTS, PA, PI, PC, PG, PE, and negatively correlated with palmitic acid; MGL monoglyceride (MG) and linoleic acid (LA) showed a highly significant positive correlation, while Cerd showed a significant negative correlation; DGD1 and LPP are significantly negatively correlated with MG and LA, and significantly positively correlated with ceramide (Cer). Conclusion It is speculated that ALDH7A1, ALDH2, PLA1, and MGL may inhibit the synthesis of glycerophospholipids and promote the synthesis of fatty acids such as palmitic acid; DGD1, LPP, and GDP1 may promote the synthesis of glycerophospholipids and inhibit the synthesis of palmitic acid and other fatty acids. This study provides a theoretical basis for the quality breeding of oil palm that is resistant to rancidity.
- Oil palm,
- Rancidity,
- Lipid,
- Metabolomics,
- transcriptomics

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References(40)

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