1
|
Nybom H, Ruan C, Rumpunen K. The Systematics, Reproductive Biology, Biochemistry, and Breeding of Sea Buckthorn-A Review. Genes (Basel) 2023; 14:2120. [PMID: 38136942 PMCID: PMC10743242 DOI: 10.3390/genes14122120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 12/24/2023] Open
Abstract
Both the fruit flesh and seeds of sea buckthorn have multiple uses for medicinal and culinary purposes, including the valuable market for supplementary health foods. Bioactive compounds, such as essential amino acids, vitamins B, C, and E, carotenoids, polyphenols, ursolic acid, unsaturated fatty acids, and other active substances, are now being analyzed in detail for their medicinal properties. Domestication with commercial orchards and processing plants is undertaken in many countries, but there is a large need for improved plant material with high yield, tolerance to environmental stress, diseases, and pests, suitability for efficient harvesting methods, and high contents of compounds that have medicinal and/or culinary values. Applied breeding is based mainly on directed crosses between different subspecies of Hippophae rhamnoides. DNA markers have been applied to analyses of systematics and population genetics as well as for the discrimination of cultivars, but very few DNA markers have as yet been developed for use in selection and breeding. Several key genes in important metabolic pathways have, however, been identified, and four genomes have recently been sequenced.
Collapse
Affiliation(s)
- Hilde Nybom
- Department of Plant Breeding–Balsgård, Swedish University of Agricultural Sciences, 29194 Kristianstad, Sweden
| | - Chengjiang Ruan
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China;
| | - Kimmo Rumpunen
- Department of Plant Breeding, Swedish University of Agricultural Sciences, 23053 Alnarp, Sweden;
| |
Collapse
|
2
|
Chen G, Harwood JL, Lemieux MJ, Stone SJ, Weselake RJ. Acyl-CoA:diacylglycerol acyltransferase: Properties, physiological roles, metabolic engineering and intentional control. Prog Lipid Res 2022; 88:101181. [PMID: 35820474 DOI: 10.1016/j.plipres.2022.101181] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 05/31/2022] [Accepted: 07/04/2022] [Indexed: 12/15/2022]
Abstract
Acyl-CoA:diacylglycerol acyltransferase (DGAT, EC 2.3.1.20) catalyzes the last reaction in the acyl-CoA-dependent biosynthesis of triacylglycerol (TAG). DGAT activity resides mainly in membrane-bound DGAT1 and DGAT2 in eukaryotes and bifunctional wax ester synthase-diacylglycerol acyltransferase (WSD) in bacteria, which are all membrane-bound proteins but exhibit no sequence homology to each other. Recent studies also identified other DGAT enzymes such as the soluble DGAT3 and diacylglycerol acetyltransferase (EaDAcT), as well as enzymes with DGAT activities including defective in cuticular ridges (DCR) and steryl and phytyl ester synthases (PESs). This review comprehensively discusses research advances on DGATs in prokaryotes and eukaryotes with a focus on their biochemical properties, physiological roles, and biotechnological and therapeutic applications. The review begins with a discussion of DGAT assay methods, followed by a systematic discussion of TAG biosynthesis and the properties and physiological role of DGATs. Thereafter, the review discusses the three-dimensional structure and insights into mechanism of action of human DGAT1, and the modeled DGAT1 from Brassica napus. The review then examines metabolic engineering strategies involving manipulation of DGAT, followed by a discussion of its therapeutic applications. DGAT in relation to improvement of livestock traits is also discussed along with DGATs in various other eukaryotic organisms.
Collapse
Affiliation(s)
- Guanqun Chen
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Alberta T6H 2P5, Canada.
| | - John L Harwood
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - M Joanne Lemieux
- Department of Biochemistry, University of Alberta, Membrane Protein Disease Research Group, Edmonton T6G 2H7, Canada
| | - Scot J Stone
- Department of Biochemistry, Microbiology and Immunology, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada.
| | - Randall J Weselake
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, Edmonton, Alberta T6H 2P5, Canada
| |
Collapse
|
3
|
Du W, Ding J, Lu S, Wen X, Hu J, Ruan C. Identification of the key flavonoid and lipid synthesis proteins in the pulp of two sea buckthorn cultivars at different developmental stages. BMC PLANT BIOLOGY 2022; 22:299. [PMID: 35710338 PMCID: PMC9205118 DOI: 10.1186/s12870-022-03688-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Sea buckthorn is an economically important woody plant for desertification control and water soil conservation. Its berry pulp is rich in flavonoids and unsaturated fatty acids. Cultivars containing high oil and flavonoid contents have higher economic value and will increase in the planting area. However, the cause of the differences in oil and flavonoid contents among cultivars is still unclear. The influence of key enzymes in the lipid and flavonoid synthesis pathways on their content needs to be explored and clarified. RESULTS The flavonoid content in XE (Xin'e 3) was 54% higher than that in SJ (Suiji 1). Rutin was the main flavonoid in sea buckthorn pulp, and the differences in the rutin content could cause flavonoid differences between the two cultivars. The oil content of XE was 31.58% higher than that of SJ, and the difference in oil content was highest at 50-70 DAF. High-throughput proteomics was used to quantify key enzymes of flavonoid and lipid synthesis pathways in two cultivars at three developmental stages. By functional annotation and KEGG analysis, 41 key enzymes related to phenylpropanoid biosynthesis, flavonoid biosynthesis, flavone and flavonol biosynthesis, fatty acid biosynthesis and TAG biosynthesis were quantified. CHS, F3H, ANS, fabD, FATA, FAB2, LPIN and plcC showed significant differences between the two cultivars. In addition, we quantified 6 oleosins. With the exception of a 16 kDa oleosin, the other oleosins in the two cultivars were positively correlated with oil content. CONCLUSIONS In the flavonoid synthesis pathway, CHS and F3H were the main enzymes responsible for the difference in flavonoid content between the two cultivars. In the lipid synthesis pathway, LPIN, plcC and MGD were the main enzymes with different contents in the middle to late stages. Higher contents of LPIN and plcC in XE than in SJ could cause DAG to generate TAG from PC, since the difference in DGAT between the two cultivars was not significant. Investigating the causes of flavonoid and oil content differences among different cultivars from the perspective of proteomics, could provide a basis for understanding the regulatory mechanism of flavonoids and lipid synthesis in sea buckthorn pulp.
Collapse
Affiliation(s)
- Wei Du
- Institute of Plant Resources, Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, Dalian, China
| | - Jian Ding
- Institute of Plant Resources, Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, Dalian, China
| | - Shunguang Lu
- Management Center of Seabuckthorn Development, Ministry of Water Resources, Beijing, China
| | - Xiufeng Wen
- Management Center of Seabuckthorn Development, Ministry of Water Resources, Beijing, China
| | - Jianzhong Hu
- Management Center of Seabuckthorn Development, Ministry of Water Resources, Beijing, China
| | - Chengjiang Ruan
- Institute of Plant Resources, Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, Dalian, China.
| |
Collapse
|
4
|
Wu B, Ruan C, Shah AH, Li D, Li H, Ding J, Li J, Du W. Identification of miRNA-mRNA Regulatory Modules Involved in Lipid Metabolism and Seed Development in a Woody Oil Tree ( Camellia oleifera). Cells 2021; 11:cells11010071. [PMID: 35011633 PMCID: PMC8750442 DOI: 10.3390/cells11010071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 12/29/2022] Open
Abstract
Tea oil camellia (Camellia oleifera), an important woody oil tree, is a source of seed oil of high nutritional and medicinal value that is widely planted in southern China. However, there is no report on the identification of the miRNAs involved in lipid metabolism and seed development in the high- and low-oil cultivars of tea oil camellia. Thus, we explored the roles of miRNAs in the key periods of oil formation and accumulation in the seeds of tea oil camellia and identified miRNA–mRNA regulatory modules involved in lipid metabolism and seed development. Sixteen small RNA libraries for four development stages of seed oil biosynthesis in high- and low-oil cultivars were constructed. A total of 196 miRNAs, including 156 known miRNAs from 35 families, and 40 novel miRNAs were identified, and 55 significantly differentially expressed miRNAs were found, which included 34 upregulated miRNAs, and 21 downregulated miRNAs. An integrated analysis of the miRNA and mRNA transcriptome sequence data revealed that 10 miRNA–mRNA regulatory modules were related to lipid metabolism; for example, the regulatory modules of ath-miR858b–MYB82/MYB3/MYB44 repressed seed oil biosynthesis, and a regulation module of csi-miR166e-5p–S-ACP-DES6 was involved in the formation and accumulation of oleic acid. A total of 23 miRNA–mRNA regulatory modules were involved in the regulation of the seed size, such as the regulatory module of hpe-miR162a_L-2–ARF19, involved in early seed development. A total of 12 miRNA–mRNA regulatory modules regulating growth and development were identified, such as the regulatory modules of han-miR156a_L+1–SPL4/SBP2, promoting early seed development. The expression changes of six miRNAs and their target genes were validated using quantitative real-time PCR, and the targeting relationship of the cpa-miR393_R-1–AFB2 regulatory module was verified by luciferase assays. These data provide important theoretical values and a scientific basis for the genetic improvement of new cultivars of tea oil camellia in the future.
Collapse
Affiliation(s)
- Bo Wu
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China; (B.W.); (H.L.); (J.D.); (J.L.); (W.D.)
| | - Chengjiang Ruan
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China; (B.W.); (H.L.); (J.D.); (J.L.); (W.D.)
- Correspondence: ; Tel.: +86-411-87652536
| | - Asad Hussain Shah
- Department of Biotechnology, Faculty of Sciences, University of Kotli Azad Jammu and Kashmir, Azad Jammu and Kashmir, Kotli 11100, Pakistan;
| | - Denghui Li
- Guizhou Wulingshan Youcha Technology Innovation Research Institute Co., Ltd., Tongren 554300, China;
| | - He Li
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China; (B.W.); (H.L.); (J.D.); (J.L.); (W.D.)
| | - Jian Ding
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China; (B.W.); (H.L.); (J.D.); (J.L.); (W.D.)
| | - Jingbin Li
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China; (B.W.); (H.L.); (J.D.); (J.L.); (W.D.)
| | - Wei Du
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China; (B.W.); (H.L.); (J.D.); (J.L.); (W.D.)
| |
Collapse
|
5
|
Ding J, Ruan C, Guan Y, Li H, Du W, Lu S, Wen X, Tang K, Chen Y. Nontargeted metabolomic and multigene expression analyses reveal the mechanism of oil biosynthesis in sea buckthorn berry pulp rich in palmitoleic acid. Food Chem 2021; 374:131719. [PMID: 34875440 DOI: 10.1016/j.foodchem.2021.131719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 11/10/2021] [Accepted: 11/27/2021] [Indexed: 11/28/2022]
Abstract
Sea buckthorn berry pulp (SBP) oil is abundant in palmitoleic acid (C16:1). However, metabolic mechanisms of oil biosynthesis in SBP (non-seed tissues) are not clear. Thus, comparative nontargeted metabolomic analysis of the four developmental stages of berry pulp in two lines, Za56 and TF2-36, was performed. The results revealed that glycerol-3-phosphate (G3P) was critical for high oil accumulation in the mid-early developmental stages. In particular, the metabolism of phosphatidylcholine (PC) (16:0/16:0), PC (16:0/16:1), and PC (16:1/16:1) was also significantly altered. Sufficient supply of G3P and 16:1-CoA, coupled with upregulated expression of the glycerol-3-phosphate dehydrogenase (GPD1) and delta-9 desaturase (Δ9D) genes, were associated with high oil content enriched in C16:1 in SBP. Our results provide a scientific basis for the development of metabolic engineering strategies to increase the oil content in SBP with a high level of C16:1.
Collapse
Key Words
- Berry pulp oil
- Choline, PubChem CID: 305
- Gene expression
- Glycerol, PubChem CID: 753
- Glycerol-3-phosphate
- Glycerol-3-phosphate, PubChem CID: 754
- Glycerophosphocholine, PubChem CID: 439285
- Lysophosphatidycholine (16:0), PubChem CID: 10097314
- Nontargeted metabolomics
- Palmitic acid, PubChem CID: 985
- Palmitoleic acid
- Palmitoleic acid, PubChem CID: 445638
- Phosphatidylcholine (16: 1/16: 1), PubChem CID: 24778764
- Phosphatidylcholine (16:0/160), PubChem CID: 3032281
- Phosphatidylcholine (16:0/161), PubChem CID: 6443788
- Sea buckthorn
Collapse
Affiliation(s)
- Jian Ding
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China
| | - Chengjiang Ruan
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China.
| | - Ying Guan
- Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
| | - He Li
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China
| | - Wei Du
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China
| | - Shunguang Lu
- Management Center of Seabuckthorn Development, Ministry of Water Resources, Beijing 100000, China
| | - Xiufeng Wen
- Management Center of Seabuckthorn Development, Ministry of Water Resources, Beijing 100000, China
| | - Ke Tang
- Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China
| | - Ye Chen
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Institute of Plant Resources, Dalian Minzu University, Dalian 116600, China
| |
Collapse
|
6
|
Song G, Wang Q, Zhang M, Yang H, Xie H, Zhao Q, Zhu Q, Zhang X, Wang H, Wang P, Shen Q. Real-Time In Situ Screening of Omega-7 Phospholipids in Marine Biological Resources Using an iKnife-Rapid-Evaporative-Ionization-Mass-Spectrometry-Based Lipidomics Phenotype. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:9004-9011. [PMID: 33435687 DOI: 10.1021/acs.jafc.0c05442] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Omega-7 (n-7) phospholipids were bioactive substances in marine animals. In this study, a fast lipidomics phenotyping approach for real-time in situ screening of n-7 phospholipids in five kinds of economic seafood, salmon, prawn, bluefin tuna, hairtail, and butterfish, was established using iKnife rapid evaporative ionization mass spectrometry (REIMS). The n-7 phospholipids were structurally characterized and quantitatively analyzed, and the profiles were statistically analyzed by multivariate recognition analysis. It indicated that the difference of n-7 phospholipids in seafood samples was significant (p < 0.05), with R2(cum) and Q2(cum) values of >0.9. The proportion of n-7 phospholipids in salmon was the highest (20.43%), followed by bluefin tuna, prawn, hairtail, and butterfish. The ions of m/z 742.54 (PC 16:1-18:1), 768.55 (PC 16:1-20:2), 697.48 (PE 16:1-18:1), and 699.48 (PE 16:1-18:0) were the main n-7 phospholipids. The effectiveness of iKnife REIMS was further verified by hydrophilic interaction chromatography mass spectrometry and gas chromatography. The results demonstrated that proposed iKnife REIMS was an excellent technique for front-line screening of n-7 phospholipids in a large variety of marine biological resources.
Collapse
Affiliation(s)
- Gongshuai Song
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, Zhejiang 310012, People's Republic of China
| | - Qingcheng Wang
- Department of Cardiology, Hangzhou Yuhang Hospital of Traditional Chinese Medicine, Yuhang, Zhejiang 311106, People's Republic of China
| | - Mengna Zhang
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, Zhejiang 310012, People's Republic of China
| | - Huijuan Yang
- College of Standardization, China Jiliang University, Hangzhou, Zhejiang 310018, People's Republic of China
| | - Hujun Xie
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, Zhejiang 310012, People's Republic of China
| | - Qiaoling Zhao
- Zhoushan Institute of Calibration and Testing for Quality and Technical Supervision, Zhoushan, Zhejiang 316021, People's Republic of China
| | - Qinchao Zhu
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, Zhejiang 310012, People's Republic of China
| | - Xiaodi Zhang
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, Zhejiang 310012, People's Republic of China
| | - Honghai Wang
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, Zhejiang 310012, People's Republic of China
| | - Pingya Wang
- Zhoushan Institute of Calibration and Testing for Quality and Technical Supervision, Zhoushan, Zhejiang 316021, People's Republic of China
| | - Qing Shen
- Collaborative Innovation Center of Seafood Deep Processing, Zhejiang Province Joint Key Laboratory of Aquatic Products Processing, Institute of Seafood, Zhejiang Gongshang University, Hangzhou, Zhejiang 310012, People's Republic of China
| |
Collapse
|
7
|
Liu B, Sun Y, Hang W, Wang X, Xue J, Ma R, Jia X, Li R. Characterization of a Novel Acyl-ACP Δ 9 Desaturase Gene Responsible for Palmitoleic Acid Accumulation in a Diatom Phaeodactylum tricornutum. Front Microbiol 2020; 11:584589. [PMID: 33391203 PMCID: PMC7772203 DOI: 10.3389/fmicb.2020.584589] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 11/17/2020] [Indexed: 12/23/2022] Open
Abstract
Palmitoleic acid (16:1Δ9) possesses a double bond at the seventh carbon atom from methyl end of the acyl chain and belongs to unusual ω-7 monounsaturated fatty acids with broad applications in food, pharmaceuticals, cosmetics, biofuel, and other industries. This high-value fatty acid accumulates up to >40% of total lipid in the marine diatom Phaeodactylum tricornutum. The present study was conducted to determine the key gene responsible for 16:1Δ9 biosynthesis in this unicellular alga. A new full-length cDNA and genomic DNA encoding acyl-ACP Δ9 desaturase (PtAAD) were isolated from P. tricornutum cells. Expression levels of PtAAD gene under normal and stress culture conditions were both positively correlated with 16:1Δ9 accumulation, implying its potential role for fatty acid determination. Functional complementation assay of a yeast mutant strain BY4839 evidenced that PtAAD could restore the synthesis of unsaturated fatty acid, especially generating high levels of 16:1Δ9. Further transient expression of PtAAD gene in Nicotiana benthamiana leaves was accompanied by the accumulation of 16:1Δ9, which was absent from control groups. Three-dimensional structure modeling studies showed that functional domain of PtAAD contained three variant amino acids (F160, A223, and L156), which may narrow the space shape of substrate-binding cavity to ensure the entry of 16:0-ACP. Consistent with this prediction, the mutated version of PtAAD gene (F160L, A223T, and L156M) in N. benthamiana systems failed to accumulate 16:1Δ9, but increased levels of 18:1Δ9. Taken together, PtAAD exhibits a strong enzymatic activity and substrate preference for 16:0-ACP, acting as the key player for high biosynthesis and accumulation of 16:1Δ9 in this alga. These findings provide new insights for better understanding the palmitoleic acid and oil biosynthetic mechanism in P. tricornutum, indicating that PtAAD gene may have practical applications for enriching palmitoleic acid and oil yield in other commercial oleaginous algae and crops.
Collapse
Affiliation(s)
- Baoling Liu
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China.,College of Plant Protection, Shanxi Agricultural University, Jinzhong, China
| | - Yan Sun
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Wei Hang
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Xiaodan Wang
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Jinai Xue
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Ruiyan Ma
- College of Plant Protection, Shanxi Agricultural University, Jinzhong, China
| | - Xiaoyun Jia
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Runzhi Li
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| |
Collapse
|