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Dynamics of sugars, endogenous hormones, and oil content during the development of Camellia oleifera fruit
Botany ( IF 1.1 ) Pub Date : 2021-04-16 , DOI: 10.1139/cjb-2021-0019 Qiling Song 1 , Ke Ji 1 , Wenjuan Mo 2, 3 , Linkai Wang 1 , Le Chen 1 , Ling Gao 1 , Wenfang Gong 1 , Deyi Yuan 1
Botany ( IF 1.1 ) Pub Date : 2021-04-16 , DOI: 10.1139/cjb-2021-0019 Qiling Song 1 , Ke Ji 1 , Wenjuan Mo 2, 3 , Linkai Wang 1 , Le Chen 1 , Ling Gao 1 , Wenfang Gong 1 , Deyi Yuan 1
Affiliation
Botany, Ahead of Print.
Camellia oleifera Abel (‘Huashuo’) is an important woody oil species with high economic value. Low yield is the main factor restricting the rapid development of the tea-oil industry. The dynamics of sugars, oil, endogenous hormones, and the genes involved in these pathways, as well as the correlation with oil synthesis-related factors in Huashuo, were investigated. The results showed that oil content was positively correlated with sucrose and starch content but was negatively correlated with reducing sugar content. Pyruvate kinase (PK) and fructose-1,6-bisphosphate aldolase (FBA) of the glycolysis pathway could be beneficial for oil biosynthesis. Higher levels of acetyl CoA carboxylase (ACC), stearoyl-ACP desaturase (SAD), and WRINKLED1 (WRI1), as well as lower levels of omega-6 fatty acid desaturase 2 (FAD2) and lipoxygenase 5 (LOX5) could be responsible for the oil production. The higher expression of gibberellin 20 oxidase (GA20ox), lower expression of gibberellic acid insensitive (GAI), and the increase in 9-cis-epoxycarotenoid dioxygenase (NCED) at the mRNA level could contribute to oil accumulation. The results of this study could provide a reference for increasing the yield of plants related to Huashuo.
中文翻译：
油茶果实发育过程中糖、内源激素和含油量的动态变化
植物学，超前印刷。
油茶（'华硕'）是一种重要的木本油料，具有较高的经济价值。产量低是制约茶油产业快速发展的主要因素。研究了糖、油、内源性激素的动态变化，以及参与这些途径的基因，以及与化硕油合成相关因素的相关性。结果表明，油脂含量与蔗糖、淀粉含量呈正相关，与还原糖含量呈负相关。糖酵解途径的丙酮酸激酶 (PK) 和果糖-1,6-二磷酸醛缩酶 (FBA) 可能有利于油的生物合成。更高水平的乙酰辅酶 A 羧化酶 (ACC)、硬脂酰 ACP 去饱和酶 (SAD) 和 WRINKLED1 (WRI1)，以及较低水平的 omega-6 脂肪酸去饱和酶 2 (FAD2) 和脂氧合酶 5 (LOX5) 可能是石油生产的原因。赤霉素 20 氧化酶 (GA20ox) 的较高表达、赤霉素不敏感 (GAI) 的较低表达以及 mRNA 水平的 9-顺式-环氧类胡萝卜素双加氧酶 (NCED) 的增加可能有助于石油积累。本研究结果可为提高花朔相关植物的产量提供参考。
更新日期：2021-04-16
Camellia oleifera Abel (‘Huashuo’) is an important woody oil species with high economic value. Low yield is the main factor restricting the rapid development of the tea-oil industry. The dynamics of sugars, oil, endogenous hormones, and the genes involved in these pathways, as well as the correlation with oil synthesis-related factors in Huashuo, were investigated. The results showed that oil content was positively correlated with sucrose and starch content but was negatively correlated with reducing sugar content. Pyruvate kinase (PK) and fructose-1,6-bisphosphate aldolase (FBA) of the glycolysis pathway could be beneficial for oil biosynthesis. Higher levels of acetyl CoA carboxylase (ACC), stearoyl-ACP desaturase (SAD), and WRINKLED1 (WRI1), as well as lower levels of omega-6 fatty acid desaturase 2 (FAD2) and lipoxygenase 5 (LOX5) could be responsible for the oil production. The higher expression of gibberellin 20 oxidase (GA20ox), lower expression of gibberellic acid insensitive (GAI), and the increase in 9-cis-epoxycarotenoid dioxygenase (NCED) at the mRNA level could contribute to oil accumulation. The results of this study could provide a reference for increasing the yield of plants related to Huashuo.
中文翻译：
油茶果实发育过程中糖、内源激素和含油量的动态变化
植物学，超前印刷。
油茶（'华硕'）是一种重要的木本油料，具有较高的经济价值。产量低是制约茶油产业快速发展的主要因素。研究了糖、油、内源性激素的动态变化，以及参与这些途径的基因，以及与化硕油合成相关因素的相关性。结果表明，油脂含量与蔗糖、淀粉含量呈正相关，与还原糖含量呈负相关。糖酵解途径的丙酮酸激酶 (PK) 和果糖-1,6-二磷酸醛缩酶 (FBA) 可能有利于油的生物合成。更高水平的乙酰辅酶 A 羧化酶 (ACC)、硬脂酰 ACP 去饱和酶 (SAD) 和 WRINKLED1 (WRI1)，以及较低水平的 omega-6 脂肪酸去饱和酶 2 (FAD2) 和脂氧合酶 5 (LOX5) 可能是石油生产的原因。赤霉素 20 氧化酶 (GA20ox) 的较高表达、赤霉素不敏感 (GAI) 的较低表达以及 mRNA 水平的 9-顺式-环氧类胡萝卜素双加氧酶 (NCED) 的增加可能有助于石油积累。本研究结果可为提高花朔相关植物的产量提供参考。
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