甘肃省农业科学院机构知识库

Linum usitatissimum FAD2A and FAD3A enhance seed polyunsaturated fatty acid accumulation and seedling cold tolerance in Arabidopsis thaliana

收藏
分享
全文链接

文献类型：外文期刊

作者： Wang, Jianjun ¹ ; Liu, Zijin ¹ ; Liu, Hua ¹ ; Peng, Danshuai ¹ ; Zhang, Jianping ³ ; Chen, Mingxun ¹ ;

作者机构： 1.Northwest A&F Univ, State Key Lab Crop Stress Biol Arid Areas, 3 Taicheng Rd, Yangling 712100, Shaanxi, Peoples R China

2.Northwest A&F Univ, Coll Agron, 3 Taicheng Rd, Yangling 712100, Shaanxi, Peoples R China

3.Gansu Acad Agr Sci, Crop Res Inst, Lanzhou 730070, Peoples R China

关键词： LuFAD2; LuFAD3; Fatty acid; Low temperature; Jasmonic acid; Anthocyanins

期刊名称：PLANT SCIENCE （影响因子：4.729；五年影响因子：5.132 ）

ISSN： 0168-9452

年卷期： 2021 年 311 卷

页码：

收录情况： SCI

摘要： Flax (Linum usitatissimum) seed oil is rich in polyunsaturated fatty acids (PUFAs), particularly linolenic acid, which is converted from linoleic acid. Studies have indicated that the biosynthesis of linoleic acid and linolenic acid is controlled by FAD2 and FAD3, respectively. However, the functional distinctions of different LuFAD2 and LuFAD3 copies from L. usitatissimum in governing the biosynthesis of linoleic acid or linolenic acid, respectively, remain unclear. In this study, five LuFAD2 and three LuFAD3 cDNAs were cloned from the L. usitatissimum cultivar 'Longya 10', and GC-MS results demonstrated that LuFAD2A and LuFAD3A play predominant roles in the accumulation of linoleic acid and linolenic acid, respectively. Their simultaneous overexpression in Arabidopsis thaliana seeds led to a significant increase in fatty acid contents, especially PUFAs. Additionally, LuFAD2A and LuFAD3A promoted the biosynthesis of jasmonic acid by increasing the levels of linolenic acid, which, in turn, enhanced plant cold tolerance. When the amount of linolenic acid is not sufficient, plants adapt to low temperature via the accumulation of anthocyanins. These findings provide insights into the higher accumulation of PUFAs in L. usitatissimum seeds, and provide potential targets for improving oil quality of other oil-producing crops through molecular manipulation.

相关文献

作者其他论文更多>>

Vis-NIR and NIR hyperspectral imaging combined with convolutional neural network with attention module for flaxseed varieties identification

作者：Zhu, Dongyu;Han, Junying;Liu, Chengzhong;Zhang, Jianping;Qi, Yanni

关键词：Hyperspectral imaging; Flaxseed; Identification; Convolutional neural network; Channel attention and transformer modules
Genome-Wide Identification and Expression Profiling of Dehydration-Responsive Element-Binding Family Genes in Flax (Linum usitatissimum L.)

作者：Wang, Yan;Niu, Yamin;Lu, Nan;Hu, Zuyu;Liu, Zigang;Zhang, Jianping;Wang, Yan;Qi, Yanni;Wang, Limin;Xu, Chenmeng;Li, Wenjuan;Dang, Zhao;Zhao, Wei;Wang, Ping;Xie, Yaping;Niu, Yamin;Lu, Nan;Hu, Zuyu;Zhang, Jianping;Liu, Zigang

关键词：flax; DREB; transcription factors; abiotic stress; expression analysis
Genetic analysis and identification of major locus and candidate genes linked to thousand-seed weight in flax (Linum usitatissimum)

作者：Qi, Yanni;Wang, Limin;Li, Wenjuan;Dang, Zhao;Zhao, Wei;Wang, Ping;Xie, Yaping;Xu, Chenmeng;Wang, Yan;Zhang, Jianping;Wang, Wei

关键词：Flax; TSW; BSA-seq; Fine mapping; qRT-PCR
Flaxseed protein content prediction based on hyperspectral wavelength selection with fractional order ant colony optimization

作者：Wang, Bo;Han, Junying;Liu, Chengzhong;Zhang, Jianping;Qi, Yanni

关键词：hyperspectral imaging; wavelength selection; visible-near infrared; protein content; fractional order ant colony optimization
LEHP-DETR: A model with backbone improved and hybrid encoding innovated for flax capsule detection

作者：Wang, Changshun;Han, Junying;Liu, Chengzhong;Zhang, Jianping;Qi, Yanni

关键词：
Combining Vis-NIR and NIR hyperspectral imaging techniques with a data fusion strategy for rapid and nondestructive determination of multiple nutritional qualities in flaxseed

作者：Zhu, Dongyu;Han, Junying;Liu, Chengzhong;Zhang, Jianping;Qi, Yanni

关键词：Hyperspectral imaging; Flaxseed; Data fusion; Multiple nutritional qualities; Visualization
Effect of foliar spray selenium on antioxidant defense system, yields, fatty acid composition, and mineral concentrations in flax (Linum usitatissimum L.)

作者：Xie, Yaping;Wang, Limin;Li, Wenjuan;Zhao, Wei;Dang, Zhao;Wang, Xingzhen;Duan, Yanqiao;Zhang, Jianping;Yuan, Minlu;Wang, Gang;Xie, Yaping;Zhou, Yangchen

关键词：flax; selenium; antioxidant; productivity; quality; biofortification

Linum usitatissimum FAD2A and FAD3A enhance seed polyunsaturated fatty acid accumulation and seedling cold tolerance in Arabidopsis thaliana

作者其他论文 更多>>

Vis-NIR and NIR hyperspectral imaging combined with convolutional neural network with attention module for flaxseed varieties identification

Genome-Wide Identification and Expression Profiling of Dehydration-Responsive Element-Binding Family Genes in Flax (Linum usitatissimum L.)

Genetic analysis and identification of major locus and candidate genes linked to thousand-seed weight in flax (Linum usitatissimum)

Flaxseed protein content prediction based on hyperspectral wavelength selection with fractional order ant colony optimization

LEHP-DETR: A model with backbone improved and hybrid encoding innovated for flax capsule detection

Combining Vis-NIR and NIR hyperspectral imaging techniques with a data fusion strategy for rapid and nondestructive determination of multiple nutritional qualities in flaxseed

Effect of foliar spray selenium on antioxidant defense system, yields, fatty acid composition, and mineral concentrations in flax (Linum usitatissimum L.)

意 见 箱

作者其他论文更多>>

意见箱