1
|
Seo HJ, Na TW, Lee SH, Kim HJ, Hong S, Cho H. Target and non-target analytical method for potential hazardous substances in livestock and pet hair using liquid- and gas chromatography quadrupole time-of-flight mass spectrometry. J Chromatogr A 2023; 1705:464170. [PMID: 37390765 DOI: 10.1016/j.chroma.2023.464170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/16/2023] [Accepted: 06/17/2023] [Indexed: 07/02/2023]
Abstract
Extraction using acetonitrile and water and quadrupole time-of-flight mass spectrometry (LC and GC-QTOF/MS) techniques were used to screen for potential hazardous substances in livestock and pet hair. In addition, LC-MS/MS and GC-MS/MS techniques were used for verification of the analytical method and quantitative analysis of pesticides, veterinary drugs, mycotoxins and antioxidants in hair. Optimized sample preparation involves extracting 0.05 g of sample with 0.6 mL of ACN and 0.4 mL of distilled water. In addition, the two layers were separated by adding 0.1 g of NaCl. Then, both the ACN and water layers were analyzed by LC-TOF/MS, and the ACN layer was analyzed by GC-TOF/MS. Most of the matrix effects of livestock and pet hair were less than 50%, but some matrices and components showed high results, so matrix matching correction was applied for more precise quantification. Method validation was performed for 394 constituents (293 pesticides, 93 veterinary drugs, 6 mycotoxins and 2 preservatives) in dog, cat, cow and pig hair and chicken and duck feathers. All components showed good linearity (r2 ≥0.98) in the developed assay. The quantification limit of all compounds was set at 0.02 mg/kg, which is the lowest level that satisfies the recovery rate standard. The recovery experiment was repeated 8 times at 3 concentrations. Most of the components were extracted with the ACN layer, and the recovery rate was 63.35-119.98%. In order to confirm the efficiency of extracting harmful substances from actual samples, 30 hairs of livestock and pets were screened.
Collapse
Affiliation(s)
- Hyung-Ju Seo
- Experiment Research Institute, National Agricultural Products Quality Management Service, 141, Yongjeon-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Korea.
| | - Tae Woong Na
- Experiment Research Institute, National Agricultural Products Quality Management Service, 141, Yongjeon-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Korea.
| | - Seung Hwa Lee
- Experiment Research Institute, National Agricultural Products Quality Management Service, 141, Yongjeon-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Korea.
| | - Ho Jin Kim
- Experiment Research Institute, National Agricultural Products Quality Management Service, 141, Yongjeon-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Korea.
| | - Sunghie Hong
- Experiment Research Institute, National Agricultural Products Quality Management Service, 141, Yongjeon-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Korea.
| | - Hyunjeong Cho
- Experiment Research Institute, National Agricultural Products Quality Management Service, 141, Yongjeon-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Korea.
| |
Collapse
|
2
|
Hu J, Shen Y, Chen Y. Metabonomics application on screening serum biomarkers of golden hamsters with nonalcoholic steatohepatitis induced by high-fat diet. Comb Chem High Throughput Screen 2023:CCHTS-EPUB-129725. [PMID: 36815651 DOI: 10.2174/1386207326666230223095745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 12/13/2022] [Accepted: 12/23/2022] [Indexed: 02/24/2023]
Abstract
BACKGROUND Nonalcoholic steatohepatitis (NASH) is a common liver injury which will develop into advanced fibrosis and cirrhosis. This study was designed to identify the different serum metabolites of NASH hamsters and predict the diagnosis biomarkers for NASH. MATERIAL AND METHODS Golden hamsters were randomly divided into a control group that received a normal diet and a NASH group that received a high-fat diet (HFD). After 12 weeks of feeding, the body and liver weight of the hamsters were monitored. Serum biochemical parameters and liver histopathological changes were analyzed. Moreover, an untargeted metabolomics analysis based on a GC-TOF/MS system was performed to identify the serum differential metabolites between the NASH and control groups. RESULTS The liver weight was increased in the NASH group, accompanied by significantly higher levels of serum TC, TG, ALT, AST, LDL-C, and lower HDL-C. HE, Masson, and oil red O staining showed the hepatocyte structure destroyed, lipid droplets accumulated, and fibers proliferated in the NASH group. Furthermore, 63 differential metabolites were identified by metabolomic analysis. Lipids and fatty acids were significantly up-regulated in the NASH group. The top 9 differential metabolites included cholesterol, methyl phosphate, taurine, alpha-tocopherol, aspartic acid, etc. Metabolites were mainly involved in amino acid metabolism (glycine, cysteine, taurine), spermine, fatty acid biosynthesis, urea cycle, bile acid metabolism pathways, etc. Conclusion: Metabonomics analysis identified 63 differential metabolites in the serum of NASH hamsters; among them, lipids and fatty acids had a key role and may be used as biomarkers for the early diagnosis of NASH.
Collapse
Affiliation(s)
- Jingjing Hu
- Department of Ultrasonic diagnostic center, Ningbo Huamei Hospital, University of Chinese Academy of Sciences, Ningbo Zhejiang 315010, China
| | - Yueliang Shen
- Department of Pathology and Pathophysiology, Medical College of Zhejiang University, Hangzhou Zhejiang 310003, China
| | - Yunwen Chen
- Department of Ultrasonic diagnostic center, Ningbo Huamei Hospital, University of Chinese Academy of Sciences, Ningbo Zhejiang 315010, China
| |
Collapse
|
3
|
Fu M, Bao T, Yu H, A. L, Li H, Ba G, Cho S. Metabolomics investigation on antiobesity effects of Corydalis bungeana on high-fat high-sugar diet-induced obese rats. Chin Herb Med 2022; 14:414-421. [PMID: 36118007 PMCID: PMC9476812 DOI: 10.1016/j.chmed.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/24/2022] [Accepted: 04/06/2022] [Indexed: 11/30/2022] Open
Abstract
Objective Corydalis bungeana (CB) is a well-used medicinal herb in Mongolian folk medicine and has been traditionally applied as an antiobesity agent. However, the evidence-based pharmacological effects of CB and its specific metabolic alterations in the obese model are not entirely understood. This study aimed to utilize untargeted metabolomic techniques to identify biomarkers and gain mechanistic insight into the serum metabolite alterations associated with weight loss and lipid metabolism in obese rats. Methods A high-fat high-sugar (HFHS) diet was used to induce obese models in rats. CB extract was orally gavaged at 0.18, 0.9 and 1.8 g/kg doses for six weeks, and feed intake, body weight, fat pad weight, and blood indexes were measured. Blood serum metabolites were evaluated by gas chromatography/quadrupole time-of-flight tandem mass spectrometry (GC-TOF/MS). Results The results showed that compared with the obese group, the administration of CB extract caused significant decreases in body weight (P < 0.05), feed intake, Lee's index, and perirenal, mesenteric, epididymal fat weight. CB extract also reduced blood triglyceride and total cholesterol levels (P < 0.05) of obese rats. Metabolomic findings showed that nine differential metabolites, including pyruvic acid, D-glucuronic acid, malic acid, dimethylglycine, oxoglutaric acid, pantothenic acid, sorbitol acid, fumaric acid and glucose 6-phosphate were identified under CB treatment and altered metabolic pathways such as TCA cycle, pantothenate and CoA biosynthesis, and glycolysis/gluconeogenesis. Conclusion This study demonstrated weight loss and lipid lowering effects of CB on HFHS diet-induced obese rats and identified nine metabolites as potential biomarkers for evaluating the favorable therapeutic mechanism of CB via regulation of lipid and glucose metabolism.
Collapse
Affiliation(s)
- Minghai Fu
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China
- NMPA Key Laboratory of Quality Control of Traditional Chinese Medicine (Mongolian Medicine), Inner Mongolia Minzu University, Tongliao 028000, China
| | - Terigele Bao
- NMPA Key Laboratory of Quality Control of Traditional Chinese Medicine (Mongolian Medicine), Inner Mongolia Minzu University, Tongliao 028000, China
| | - Hongzhen Yu
- NMPA Key Laboratory of Quality Control of Traditional Chinese Medicine (Mongolian Medicine), Inner Mongolia Minzu University, Tongliao 028000, China
| | - LiSha A.
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China
| | - HuiFang Li
- NMPA Key Laboratory of Quality Control of Traditional Chinese Medicine (Mongolian Medicine), Inner Mongolia Minzu University, Tongliao 028000, China
| | - Genna Ba
- NMPA Key Laboratory of Quality Control of Traditional Chinese Medicine (Mongolian Medicine), Inner Mongolia Minzu University, Tongliao 028000, China
| | - Sungbo Cho
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, Haikou 571199, China
- NMPA Key Laboratory of Quality Control of Traditional Chinese Medicine (Mongolian Medicine), Inner Mongolia Minzu University, Tongliao 028000, China
| |
Collapse
|
4
|
Dong Y, Wang P, Lin J, Han C, Jiao J, Zuo K, Chen M, Yang X, Cai J, Jiang H, Guo X, Li J. Characterization of fecal metabolome changes in patients with obstructive sleep apnea. J Clin Sleep Med 2022; 18:575-586. [PMID: 34534066 PMCID: PMC8804979 DOI: 10.5664/jcsm.9668] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
STUDY OBJECTIVES Obstructive sleep apnea (OSA) is a clinical syndrome characterized by recurrent episodes of apnea or hypopnea of the upper airway, leading to increased negative intrathoracic pressure, sleep fragmentation, intermittent hypoxia during sleep, and increased risk for morbidity and mortality of affected patients. The gut microbiome plays a key role in OSA pathogenesis, and fecal metabolic profiling reflects the gut microbial functional readout and mediates host-microbiome interactions. METHODS Herein, we conducted a cohort study to explore fecal metabolic signatures distinguishing OSA (44 patients) from healthy controls (22 healthy controls) by untargeted gas chromatography-time-of-flight mass spectroscopy. RESULTS Significant metabolic signatures were detected in stool samples of patients with OSA: 246 metabolites of 24 ontology classes were identified, and 48 metabolites of 6 ontology classes were shifted. An enrichment of arachidonic acid, docosahexaenoic acid, and 11Z-eicosenoic acid and reduction in stearic acid, 5-hydroxyindoleacetic acid, gluconic acid, and α-hyodeoxycholic acid were observed in stool samples from patients with OSA. Fecal variance resulted in alterations in potential metabolic activities and was thereby strongly associated with host phenotypes, such as pulse blood oxygen saturation and apnea-hypopnea index. The prediction model based on feces metabolomics was established to distinguish OSA from healthy controls with high accuracy. CONCLUSIONS This study revealed the metabolomic signatures of patients with OSA in feces, and the findings provide evidence of an association between metabolome and OSA. CITATION Dong Y, Wang P, Lin J, et al. Characterization of fecal metabolome changes in patients with obstructive sleep apnea. J Clin Sleep Med. 2022;18(2):575-586.
Collapse
Affiliation(s)
- Ying Dong
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Pan Wang
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Junling Lin
- Hypertension Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, and Peking Union Medical College, Beijing, China
| | - Chunming Han
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Jie Jiao
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Kun Zuo
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Mulei Chen
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xinchun Yang
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Jun Cai
- Hypertension Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, and Peking Union Medical College, Beijing, China
| | - He Jiang
- The International Curriculum Centre, The High School Affiliated to Renmin University of China, Beijing, China
| | - Xiheng Guo
- Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China;,Address correspondence to: Jing Li, PhD, Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Hypertension, 8th Gongtinanlu Rd, Chaoyang District, Beijing, China, 100020; Tel: 86-10-85231937; ; and Xiheng Guo, MD, Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China, 100020; Tel: 86-10-85231545;
| | - Jing Li
- Heart Center & Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China,Address correspondence to: Jing Li, PhD, Heart Center, Beijing Chaoyang Hospital, Capital Medical University, Beijing Key Laboratory of Hypertension, 8th Gongtinanlu Rd, Chaoyang District, Beijing, China, 100020; Tel: 86-10-85231937; ; and Xiheng Guo, MD, Department of Respiratory and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China, 100020; Tel: 86-10-85231545;
| |
Collapse
|
5
|
Nie C, Wang Y, Liu Y, Liu J, Ge W, Ma X, Zhang W. Impacts of Dietary Protein from Fermented Cottonseed Meal on Lipid Metabolism and Metabolomic Profiling in the Serum of Broilers. Curr Protein Pept Sci 2020; 21:812-820. [PMID: 32013830 DOI: 10.2174/1389203721666200203152643] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 06/01/2019] [Accepted: 07/22/2019] [Indexed: 11/22/2022]
Abstract
Dietary protein from fermented cottonseed meal (FCSM), widely used in poultry diets in China, had regulating effects on lipid metabolism. To understand the effects of FCSM on lipid metabolism in broilers, we analyzed the biochemical indexes, enzyme activity, hormone level and metabolites in serum responses to FCSM intake. One hundred and eighty 21-d-old Chinese yellow feathered broilers (536.07±4.43 g) were randomly divided into 3 groups with 6 replicates and 3 diets with 6 % supplementation of unfermented CSM (control group), FCSM by C. Tropicalis (Ct CSM) or C. tropicalis plus S. Cerevisae (Ct-Sc CSM). Result showed that: (1) FCSM intake decreased significantly the content of triglyceride (TAG), total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) (P<0.05) in serum; (2) FCSM intake could significantly increase enzyme activity of acetyl CoA carboxylase (ACC), lipoprotein lipase (LPL), fatty acid synthase (FAS) and hormone sensitive lipase (HSL) (P<0.05); (3) Ct-Sc CSM intake increased significantly the levels of adiponectin (ADP) (P<0.05); (4) FCSM intake caused significant metabolic changes involving glycolysis, TCA cycle, synthesis of fatty acid and glycogen, and metabolism of glycerolipid, vitamins B group and amino acids. Our results strongly suggested that FCSM intake could significantly affect lipid metabolism via multiple pathways. These findings provided new essential information about the effect of FCSM on broilers and demonstrated the great potential of nutrimetabolomics, through which the research complex nutrients are included in animal diet.
Collapse
Affiliation(s)
- Cunxi Nie
- College of Animal Science and Technology, Shihezi University, Shihezi, China,State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yongqiang Wang
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Yanfeng Liu
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Jiancheng Liu
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Wenxia Ge
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Xi Ma
- College of Animal Science and Technology, Shihezi University, Shihezi, China,State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wenju Zhang
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| |
Collapse
|
6
|
Shin M, Kim JW, Ye S, Kim S, Jeong D, Lee DY, Kim JN, Jin YS, Kim KH, Kim SR. Comparative global metabolite profiling of xylose-fermenting Saccharomyces cerevisiae SR8 and Scheffersomyces stipitis. Appl Microbiol Biotechnol 2019; 103:5435-5446. [PMID: 31001747 DOI: 10.1007/s00253-019-09829-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/18/2019] [Accepted: 04/04/2019] [Indexed: 01/22/2023]
Abstract
Bioconversion of lignocellulosic biomass into ethanol requires efficient xylose fermentation. Previously, we developed an engineered Saccharomyces cerevisiae strain, named SR8, through rational and inverse metabolic engineering strategies, thereby improving its xylose fermentation and ethanol production. However, its fermentation characteristics have not yet been fully evaluated. In this study, we investigated the xylose fermentation and metabolic profiles for ethanol production in the SR8 strain compared with native Scheffersomyces stipitis. The SR8 strain showed a higher maximum ethanol titer and xylose consumption rate when cultured with a high concentration of xylose, mixed sugars, and under anaerobic conditions than Sch. stipitis. However, its ethanol productivity was less on 40 g/L xylose as the sole carbon source, mainly due to the formation of xylitol and glycerol. Global metabolite profiling indicated different intracellular production rates of xylulose and glycerol-3-phosphate in the two strains. In addition, compared with Sch. stipitis, SR8 had increased abundances of metabolites from sugar metabolism and decreased abundances of metabolites from energy metabolism and free fatty acids. These results provide insights into how to control and balance redox cofactors for the production of fuels and chemicals from xylose by the engineered S. cerevisiae.
Collapse
Affiliation(s)
- Minhye Shin
- Department of Biotechnology, Graduate School, Korea University, Seoul, Korea
| | - Jeong-Won Kim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, Korea
| | - Suji Ye
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, Korea
| | - Sooah Kim
- Department of Biotechnology, Graduate School, Korea University, Seoul, Korea
| | - Deokyeol Jeong
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, Korea
| | - Do Yup Lee
- Department of Bio and Fermentation Convergence Technology, BK21 PLUS Program, Kookmin University, Seoul, Korea
| | - Jong Nam Kim
- Department of Food Science and Nutrition, Dongseo University, Busan, Korea
| | - Yong-Su Jin
- Department of Food Science and Human Nutrition, the University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Kyoung Heon Kim
- Department of Biotechnology, Graduate School, Korea University, Seoul, Korea
| | - Soo Rin Kim
- School of Food Science and Biotechnology, Kyungpook National University, Daegu, Korea.
| |
Collapse
|
7
|
Xu D, Ding W, Ke W, Li F, Zhang P, Guo X. Modulation of Metabolome and Bacterial Community in Whole Crop Corn Silage by Inoculating Homofermentative Lactobacillus plantarum and Heterofermentative Lactobacillus buchneri. Front Microbiol 2019; 9:3299. [PMID: 30728817 PMCID: PMC6352740 DOI: 10.3389/fmicb.2018.03299] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 12/18/2018] [Indexed: 01/01/2023] Open
Abstract
The present study investigated the species level based microbial community and metabolome in corn silage inoculated with or without homofermentative Lactobacillus plantarum and heterofermentative Lactobacillus buchneri using the PacBio SMRT Sequencing and time-of-flight mass spectrometry (GC-TOF/MS). Chopped whole crop corn was treated with (1) deionized water (control), (2) Lactobacillus plantarum, or (3) Lactobacillus buchneri. The chopped whole crop corn was ensiled in vacuum-sealed polyethylene bags containing 300 g of fresh forge for 90 days, with three replicates for each treatment. The results showed that a total of 979 substances were detected, and 316 different metabolites were identified. Some metabolites with antimicrobial activity were detected in whole crop corn silage, such as catechol, 3-phenyllactic acid, 4-hydroxybenzoic acid, azelaic acid, 3,4-dihydroxybenzoic acid and 4-hydroxycinnamic acid. Catechol, pyrogallol and ferulic acid with antioxidant property, 4-hydroxybutyrate with nervine activity, and linoleic acid with cholesterol lowering effects, were detected in present study. In addition, a flavoring agent of myristic acid and a depression mitigation substance of phenylethylamine were also found in this study. Samples treated with inoculants presented more biofunctional metabolites of organic acids, amino acids and phenolic acids than untreated samples. The Lactobacillus species covered over 98% after ensiling, and were mainly comprised by the L. acetotolerans, L. silagei, L. parafarraginis, L. buchneri and L. odoratitofui. As compared to the control silage, inoculation of L. plantarum increased the relative abundances of L. acetotolerans, L. buchneri and L. parafarraginis, and a considerable decline in the proportion of L. silagei was observed; whereas an obvious decrease in L. acetotolerans and increases in L. odoratitofui and L. farciminis were observed in the L. buchneri inoculated silage. Therefore, inoculation of L. plantarum and L. buchneri regulated the microbial composition and metabolome of the corn silage with different behaviors. The present results indicated that profiling of silage microbiome and metabolome might improve our current understanding of the biological process underlying silage formation.
Collapse
Affiliation(s)
- Dongmei Xu
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, China
- Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, China
| | - Wurong Ding
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, China
- Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, China
| | - Wencan Ke
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, China
- Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, China
| | - Fuhou Li
- Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, China
- Stay Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - Ping Zhang
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, China
- Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, China
| | - Xusheng Guo
- State Key Laboratory of Grassland and Agro-ecosystems, School of Life Sciences, Lanzhou University, Lanzhou, China
- Probiotics and Biological Feed Research Center, Lanzhou University, Lanzhou, China
| |
Collapse
|
8
|
Song T, Xu H, Sun N, Jiang L, Tian P, Yong Y, Yang W, Cai H, Cui G. Metabolomic Analysis of Alfalfa ( Medicago sativa L.) Root-Symbiotic Rhizobia Responses under Alkali Stress. Front Plant Sci 2017; 8:1208. [PMID: 28744296 PMCID: PMC5504246 DOI: 10.3389/fpls.2017.01208] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 06/26/2017] [Indexed: 05/03/2023]
Abstract
Alkaline salts (e.g., NaHCO3 and Na2CO3) causes more severe morphological and physiological damage to plants than neutral salts (e.g., NaCl and Na2SO4) due to differences in pH. The mechanism by which plants respond to alkali stress is not fully understood, especially in plants having symbotic relationships such as alfalfa (Medicago sativa L.). Therefore, a study was designed to evaluate the metabolic response of the root-nodule symbiosis in alfalfa under alkali stress using comparative metabolomics. Rhizobium-nodulized (RI group) and non-nodulized (NI group) alfalfa roots were treated with 200 mmol/L NaHCO3 and, roots samples were analyzed for malondialdehydyde (MDA), proline, glutathione (GSH), superoxide dismutase (SOD), and peroxidase (POD) content. Additionally, metabolite profiling was conducted using gas chromatography combined with time-of-flight mass spectrometry (GC/TOF-MS). Phenotypically, the RI alfalfa exhibited a greater resistance to alkali stress than the NI plants examined. Physiological analysis and metabolic profiling revealed that RI plants accumulated more antioxidants (SOD, POD, GSH), osmolytes (sugar, glycols, proline), organic acids (succinic acid, fumaric acid, and alpha-ketoglutaric acid), and metabolites that are involved in nitrogen fixation. Our pairwise metabolomics comparisons revealed that RI alfalfa plants exhibited a distinct metabolic profile associated with alkali putative tolerance relative to NI alfalfa plants. Data provide new information about the relationship between non-nodulized, rhizobium-nodulized alfalfa and alkali resistance.
Collapse
Affiliation(s)
- Tingting Song
- College of Animal Sciences and Technology, Northeast Agricultural UniversityHarbin, China
| | - Huihui Xu
- College of Life Sciences, Northeast Agricultural UniversityHarbin, China
| | - Na Sun
- College of Life Sciences, Northeast Agricultural UniversityHarbin, China
| | - Liu Jiang
- College of Life Sciences, Northeast Agricultural UniversityHarbin, China
| | - Pu Tian
- College of Life Sciences, Northeast Agricultural UniversityHarbin, China
| | - Yueyuan Yong
- College of Life Sciences, Northeast Agricultural UniversityHarbin, China
| | - Weiwei Yang
- College of Life Sciences, Northeast Agricultural UniversityHarbin, China
| | - Hua Cai
- College of Life Sciences, Northeast Agricultural UniversityHarbin, China
- *Correspondence: Hua Cai
| | - Guowen Cui
- College of Animal Sciences and Technology, Northeast Agricultural UniversityHarbin, China
- Guowen Cui
| |
Collapse
|
9
|
Abstract
INTRODUCTION Seed germination is inherently related to seed metabolism, which changes throughout its maturation, desiccation and germination processes. The metabolite content of a seed and its ability to germinate are determined by underlying genetic architecture and environmental effects during development. OBJECTIVE This study aimed to assess an integrative approach to explore genetics modulating seed metabolism in different developmental stages and the link between seed metabolic- and germination traits. METHODS We have utilized gas chromatography-time-of-flight/mass spectrometry (GC-TOF/MS) metabolite profiling to characterize tomato seeds during dry and imbibed stages. We describe, for the first time in tomato, the use of a so-called generalized genetical genomics (GGG) model to study the interaction between genetics, environment and seed metabolism using 100 tomato recombinant inbred lines (RILs) derived from a cross between Solanum lycopersicum and Solanum pimpinellifolium. RESULTS QTLs were found for over two-thirds of the metabolites within several QTL hotspots. The transition from dry to 6 h imbibed seeds was associated with programmed metabolic switches. Significant correlations varied among individual metabolites and the obtained clusters were significantly enriched for metabolites involved in specific biochemical pathways. CONCLUSIONS Extensive genetic variation in metabolite abundance was uncovered. Numerous identified genetic regions that coordinate groups of metabolites were detected and these will contain plausible candidate genes. The combined analysis of germination phenotypes and metabolite profiles provides a strong indication for the hypothesis that metabolic composition is related to germination phenotypes and thus to seed performance.
Collapse
Affiliation(s)
- Rashid H. Kazmi
- 0000 0001 0791 5666grid.4818.5Wageningen Seed Lab, Lab. of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Leo A. J. Willems
- 0000 0001 0791 5666grid.4818.5Wageningen Seed Lab, Lab. of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Ronny V. L. Joosen
- 0000 0001 0791 5666grid.4818.5Wageningen Seed Lab, Lab. of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Noorullah Khan
- 0000 0001 0791 5666grid.4818.5Wageningen Seed Lab, Lab. of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Wilco Ligterink
- 0000 0001 0791 5666grid.4818.5Wageningen Seed Lab, Lab. of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| | - Henk W. M. Hilhorst
- 0000 0001 0791 5666grid.4818.5Wageningen Seed Lab, Lab. of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, The Netherlands
| |
Collapse
|