| Metabolomics profiling of Brassica campestris Longyou 7 roots under cold stress |
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| DOI：10.7606/j.issn.1000-7601.2021.04.10 |
| Key Words: cold stress roots metabolism metabonomic analysis Brassica campestris |
| Author Name | Affiliation | | FANG yan | Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Lanzhou, Gansu 730070, China
Rape Engineering and Technology Research Center of Gansu Province, Lanzhou, Gansu 730070, China | | ZENG Xiucun | College of Agronomy and Biotechnology, Hexi University, Zhangye, Gansu 734000, China | | MA li | Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Lanzhou, Gansu 730070, China
Rape Engineering and Technology Research Center of Gansu Province, Lanzhou, Gansu 730070, China | | SUN Boling | Rape Engineering and Technology Research Center of Gansu Province, Lanzhou, Gansu 730070, China | | WU Junyan | Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Lanzhou, Gansu 730070, China
Rape Engineering and Technology Research Center of Gansu Province, Lanzhou, Gansu 730070, China | | DONG yun | Rape Engineering and Technology Research Center of Gansu Province, Lanzhou, Gansu 730070, China
Crops Institute of Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China | | LIU Lijun | Rape Engineering and Technology Research Center of Gansu Province, Lanzhou, Gansu 730070, China
Crops Institute of Gansu Academy of Agricultural Sciences, Lanzhou, Gansu 730070, China | | JIN Jiaojiao | Rape Engineering and Technology Research Center of Gansu Province, Lanzhou, Gansu 730070, China | | SUN Wancang | Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Lanzhou, Gansu 730070, China
Rape Engineering and Technology Research Center of Gansu Province, Lanzhou, Gansu 730070, China | | LI Xuecai | Gansu Provincial Key Laboratory of Arid Land Crop Sciences, Lanzhou, Gansu 730070, China
Rape Engineering and Technology Research Center of Gansu Province, Lanzhou, Gansu 730070, China |
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| Abstract: |
| The metabolomics changes of ‘Longyou 7’ roots under low temperature stress were analyzed by liquid chromatography mass spectrometry (LC-MS) to clarify the physiological mechanism of ultra strong cold resistance Brassica campestris variety ‘Longyou 7’. KEGG enrichment analysis revealed that the metabolic pathways with significant changes were: fructose and mannose metabolism, starch and sucrose metabolism, arachidonic acid metabolism, phenylalanine metabolism, glycerophospholipid metabolism, galactose metabolism, α-linolenic acid metabolism, amino acid biosynthesis, arginine and proline metabolism, and cysteine and methionine metabolism. Sugars, amino acids, glycerophosphocholine, flavones and six kinds of phospholipids (PG, PC, PE, PI, PS and PA) were identified. Of which the fold change of sugar (except rhamnose), lysine\|valine, proline\|tryptophan and flavones were all over 1.20 under low temperature stress. The PC in phospholipid increased under cold stress, the fold change of the subclass PC (13∶0/0∶0) reached its highest point, which was 5.295. PE, and PS decreased under cold stress, the fold change was 0.528～0.740. Changes in PI, PA and PG were different for subclass. The results of this study provided reference for further research on the physiological characteristics on cold resistance of Brassica campestris. |
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