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Yang D, Wang L, Wang X. The trade-off regulation of arbuscular mycorrhiza on alfalfa growth dose-dependent on gradient Mo exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 941:173552. [PMID: 38806125 DOI: 10.1016/j.scitotenv.2024.173552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 05/30/2024]
Abstract
Molybdenum (Mo) is an essential nutrient for leguminous plants, but the effects of Mo exposure on plant growth, especially in relation to soil microorganisms, are not fully understood. This study employed alfalfa (Medicago sativa L.) to evaluate the physiochemical responses to gradient soil Mo variations and explore the potential regulatory role of rhizosphere microorganism - arbuscular mycorrhizal fungi (AMF) in modulating Mo's impact on plant physiology, with a focus on metabolic pathways. The results showed that Mo exerted hormetic effect (facilitation at low doses; inhibition at high doses) on alfalfa growth, promoting biomass (below 90.94 mg/kg, with a 63.98 % maximum increase), root length (below 657.11 mg/kg, with a 39.29 % maximum increase), and plant height (below 304.03 mg/kg, with an 18.4 % maximum increase). Excess Mo (1000 mg/kg) resulted in a reduction in photosynthesis and biomass growth due to increased oxidative stress (p < 0.05). Within the stimulatory zones, AMF enhanced Mo accumulation in alfalfa, augmenting its phytological effects. Exceed the stimulatory zones, AMF enhanced alfalfa Fe uptake and reduced the generation of reactive oxygen species (ROS) induced by excess Mo by shifting the redox homeostasis-controlled enzyme from peroxidase (POD) to superoxide dismutase (SOD), thereby improving alfalfa's tolerance to Mo. Metabolomic analysis further revealed that AMF promoted the biosynthesis of indole acetic acid (IAA) and various amino acids in Mo-stressed alfalfa (p < 0.05), which accelerated alfalfa growth and mitigated Mo-induced phytotoxicity. These insights provide a foundation for developing sustainable management strategies for Mo-exposed soils using AMF inoculants, such as minimizing Mo fertilizer application in Mo-deficient soils and facilitating the reclamation of Mo-contaminated soils.
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Affiliation(s)
- Dongguang Yang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Li Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Xin Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
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Wang YJ, Zhou X, Zhang MM, Liu MH, Ding N, Wu QF, Lei CR, Dong ZY, Ren JL, Zhao JR, Jia CL, Liu J, Zhou B, Lu D. Physiological and biochemical characteristics of the carbon ion beam irradiation-generated mutant strain Clostridium butyricum FZM 240 in vitro and in vivo. Enzyme Microb Technol 2024; 178:110447. [PMID: 38626534 DOI: 10.1016/j.enzmictec.2024.110447] [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: 12/12/2023] [Revised: 03/08/2024] [Accepted: 04/12/2024] [Indexed: 04/18/2024]
Abstract
Clostridium butyricum (C. butyricum) represents a new generation of probiotics, which is beneficial because of its good tolerance and ability to produce beneficial metabolites, such as short-chain fatty acids and enzymes; however, its low enzyme activity limits its probiotic efficacy. In this study, a mutant strain, C. butyricum FZM 240 was obtained using carbon ion beam irradiation, which exhibited greatly improved enzyme production and tolerance. The highest filter paper, endoglucanase, and amylase activities produced by C. butyricum FZM 240 were 125.69 U/mL, 225.82 U/ mL, and 252.28 U/mL, which were 2.58, 1.95, and 2.21-fold higher, respectively, than those of the original strain. The survival rate of the strain increased by 11.40 % and 5.60 % after incubation at 90 °C for 5 min and with simulated gastric fluid at pH 2.5 for 2 h, respectively, compared with that of the original strain. Whole-genome resequencing and quantitative real-time PCR(qRT-PCR) analysis showed that the expression of genes related to enzyme synthesis (GE000348, GE001963 and GE003123) and tolerance (GE001114) was significantly up-regulated, while that of genes related to acid metabolism (GE003450) was significantly down-regulated. On this basis, homology modeling and functional prediction of the proteins encoded by the mutated genes were performed. According to the results, the properties related to the efficacy of C. butyricum as a probiotic were significantly enhanced by carbon ion beam irradiation, which is a novel strategy for the application of Clostridium spp. as feed additives.
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Affiliation(s)
- Ya-Juan Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Science, Beijing 100049, China
| | - Xiang Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Science, Beijing 100049, China; Kejin Innovation Institute of Heavy Ion Beam Biological Industry, Baiyin 730900, China.
| | - Miao-Miao Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Science, Beijing 100049, China; Gansu Key Laboratory of Microbial Resources Exploitation and Application, Lanzhou 730070, China
| | - Mei-Han Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410000, China
| | - Nan Ding
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Science, Beijing 100049, China
| | - Qing-Feng Wu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Cai-Rong Lei
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Science, Beijing 100049, China
| | - Zi-Yi Dong
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Science, Beijing 100049, China
| | - Jun-Le Ren
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Science, Beijing 100049, China
| | - Jing-Ru Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Science, Beijing 100049, China
| | - Cheng-Lin Jia
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Science, Beijing 100049, China
| | - Jun Liu
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410000, China
| | - Bo Zhou
- College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410000, China
| | - Dong Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Chinese Academy of Science, Beijing 100049, China; Kejin Innovation Institute of Heavy Ion Beam Biological Industry, Baiyin 730900, China; Gansu Key Laboratory of Microbial Resources Exploitation and Application, Lanzhou 730070, China.
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Lyu X, Chen Y, Gao S, Cao W, Fan D, Duan Z, Xia Z. Metabolomic and transcriptomic analysis of cold plasma promoting biosynthesis of active substances in broccoli sprouts. PHYTOCHEMICAL ANALYSIS : PCA 2023; 34:925-937. [PMID: 37443417 DOI: 10.1002/pca.3256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 07/15/2023]
Abstract
INTRODUCTION Broccoli sprouts have great health and commercial value because they are rich in sulforaphane, a special bioactive compound that helps to prevent chronic diseases, such as cancer and cardiovascular disease. OBJECTIVE The aim of this study was to increase the levels of active substances in broccoli sprouts and understand their metabolic mechanisms. METHODOLOGY Metabolomics based on liquid chromatography-tandem mass spectrometry and transcriptome analysis were combined to analyse the enrichment of metabolites in broccoli sprouts treated with cold plasma. RESULTS After 2 min of cold plasma treatment, the contents of sulforaphane, glucosinolates, total phenols, and flavonoids, as well as myrosinase activity, were greatly improved. Transcriptomics revealed 7460 differentially expressed genes in the untreated and treated sprouts. Metabolomics detected 6739 differential metabolites, including most amino acids, their derivatives, and organic acids. Enrichment analyses of metabolomics and transcriptomics identified the 20 most significantly differentially expressed metabolic pathways. CONCLUSIONS Overall, cold plasma treatment can induce changes in the expression and regulation of certain metabolites and genes encoding active substances in broccoli sprouts.
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Affiliation(s)
- Xingang Lyu
- College of Food Science and Technology, Northwest University, Xi'an, China
| | - Yi Chen
- College of Food Science and Technology, Northwest University, Xi'an, China
| | - Shiwei Gao
- College of Food Science and Technology, Northwest University, Xi'an, China
| | - Wei Cao
- College of Food Science and Technology, Northwest University, Xi'an, China
| | - Daidi Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an, Shaanxi, China
| | - Zhiguang Duan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an, Shaanxi, China
| | - Zengrun Xia
- Ankang R&D Center for Se-enriched Products, Key Laboratory of Se-enriched Products Development and Quality Control, Ministry of Agriculture and Rural Affairs, Ankang, Shaanxi, China
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Li S, Wang S, Ye W, Yao Y, Sun F, Zhang C, Liu S, Xi Y. Effect of Mowing on Wheat Growth at Seeding Stage. Int J Mol Sci 2023; 24:15353. [PMID: 37895031 PMCID: PMC10607078 DOI: 10.3390/ijms242015353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/09/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Winter wheat is used as forage at the tillering stage in many countries; however, the regrowth pattern of wheat after mowing remains unclear. In this study, the growth patterns of wheat were revealed through cytological and physiological assessments as well as transcriptome sequencing. The results of agronomic traits and paraffin sections showed that the shoot growth rate increased, but root growth was inhibited after mowing. The submicroscopic structure revealed a decrease in heterochromatin in the tillering node cell and a change in mitochondrial shape in the tillering node and secondary root. Analysis of the transcriptome showed the number of differentially expressed genes (DEGs) involved in biological processes, cellular components, and molecular functions; 2492 upregulated DEGs and 1534 downregulated DEGs were identified. The results of the experimental study showed that mowing induced expression of DEGs in the phenylpropanoid biosynthesis pathway and increased the activity of PAL and 4CL. The upregulated DEGs in the starch and sucrose metabolism pathways and related enzyme activity alterations indicated that the sugar degradation rate increased. The DEGs in the nitrogen metabolism pathway biosynthesis of the amino acids, phenylpropanoid biosynthesis metabolism, and in the TCA pathway also changed after mowing. Hormone content and related gene expression was also altered in the tillering and secondary roots after mowing. When jasmonic acid and ethylene were used to treat the wheat after mowing, the regeneration rate increased, whereas abscisic acid inhibited regrowth. This study revealed the wheat growth patterns after mowing, which could lead to a better understanding of the development of dual-purpose wheat.
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Affiliation(s)
| | | | | | | | | | | | | | - Yajun Xi
- College of Agronomy, Northwest A&F University, Yangling 712100, China; (S.L.); (S.W.); (W.Y.); (Y.Y.); (F.S.); (C.Z.); (S.L.)
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Chang E, Guo W, Dong Y, Jia Z, Zhao X, Jiang Z, Zhang L, Zhang J, Liu J. Metabolic profiling reveals key metabolites regulating adventitious root formation in ancient Platycladus orientalis cuttings. FRONTIERS IN PLANT SCIENCE 2023; 14:1192371. [PMID: 37496863 PMCID: PMC10367097 DOI: 10.3389/fpls.2023.1192371] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/23/2023] [Indexed: 07/28/2023]
Abstract
Platycladus orientalis, a common horticultural tree species, has an extremely long life span and forms a graceful canopy. Its branches, leaves, and cones have been used in traditional Chinese medicine. However, difficulty in rooting is the main limiting factor for the conservation of germplasm resources. This study shows that the rooting rates and root numbers of cuttings were significantly reduced in ancient P. orientalis donors compared to 5-year-old P. orientalis donors. The contents of differentially accumulated metabolites (DAMs) in phenylpropanoid (caffeic acid and coniferyl alcohol) and flavonoid biosynthesis (cinnamoyl-CoA and isoliquiritigenin) pathways increased significantly in cuttings propagated from ancient P. orientalis donors compared to 5-year-old P. orientalis donors during adventitious root (AR) formation. These DAMs may prevent the ancient P. orientalis cuttings from rooting, and gradual lignification of callus was one of the main reasons for the failed rooting of ancient P. orientalis cuttings. The rooting rates of ancient P. orientalis cuttings were improved by wounding the callus to identify wounding-induced rooting-promoting metabolites. After wounding, the contents of DAMs in zeatin (5'-methylthioadenosine, cis-zeatin-O-glucoside, and adenine) and aminoacyl-tRNA biosynthesis (l-glutamine, l-histidine, l-isoleucine, l-leucine, and l-arginine) pathways increased, which might promote cell division and provided energy for the rooting process. The findings of our study suggest that breaking down the lignification of callus via wounding can eventually improve the rooting rates of ancient P. orientalis cuttings, which provides a new solution for cuttings of other difficult-to-root horticultural and woody plants.
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Affiliation(s)
- Ermei Chang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
- State Key Laboratory of Subtropical Silviculture, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Wei Guo
- Taishan Academy of Forestry Sciences, Taian, Shandong, China
| | - Yao Dong
- Key Laboratory of Forest Ecology of National Forestry and Grassland Administration, Environment and Protection, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Zirui Jia
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
| | - Xiulian Zhao
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
| | - Zeping Jiang
- Key Laboratory of Forest Ecology of National Forestry and Grassland Administration, Environment and Protection, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Li Zhang
- College of Agricultural and Biological Engineering, Heze University, Heze, Shandong, China
| | - Jin Zhang
- State Key Laboratory of Subtropical Silviculture, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, Zhejiang, China
| | - Jianfeng Liu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
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Torres-Contreras AM, Nair V, Senés-Guerrero C, Pacheco A, González-Agüero M, Ramos-Parra PA, Cisneros-Zevallos L, Jacobo-Velázquez DA. Cross-Talk and Physiological Role of Jasmonic Acid, Ethylene, and Reactive Oxygen Species in Wound-Induced Phenolic Biosynthesis in Broccoli. PLANTS (BASEL, SWITZERLAND) 2023; 12:1434. [PMID: 37050060 PMCID: PMC10097011 DOI: 10.3390/plants12071434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/22/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
Wounding induces phenolic biosynthesis in broccoli. However, there is scarce information about the physiological and molecular mechanisms governing this stress response. In the present study, a chemical-genetics approach was used to elucidate the role of reactive oxygen species (ROS), jasmonic acid (JA), and ethylene (ET) as stress-signaling molecules in the wound-induced phenolic biosynthesis in broccoli. Wounding activated the biosynthesis of ET and JA. Likewise, the wound-induced biosynthesis of ET and JA was regulated by ROS. JA activated primary metabolism, whereas the three signaling molecules activated phenylpropanoid metabolism. The signaling molecules inhibited the wound-induced activation of the hydroxycinnamoyl-CoA quinate hydroxycinnamoyl transferase (HQT) gene, which is involved in caffeoylquinic acids biosynthesis, and the main phenolics accumulated in wounded broccoli, suggesting that an alternative caffeoylquinic biosynthesis pathway is activated in the tissue due to wounding. ROS mediated the biosynthesis of most individual phenolic compounds evaluated. In conclusion, ROS, ET, and JA are essential in activating broccoli's primary and secondary metabolism, resulting in phenolic accumulation.
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Affiliation(s)
- Ana Mariel Torres-Contreras
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Eugenio Garza Sada 2501 Sur, Monterrey C.P. 64849, Nuevo Leon, Mexico
| | - Vimal Nair
- Department of Horticultural Sciences, Texas A & M University, College Station, TX 77843-2133, USA
| | - Carolina Senés-Guerrero
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. General Ramón Corona 2514, Nuevo Mexico, Zapopan C.P. 45138, Jalisco, Mexico
| | - Adriana Pacheco
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Eugenio Garza Sada 2501 Sur, Monterrey C.P. 64849, Nuevo Leon, Mexico
| | - Mauricio González-Agüero
- Institute for Agricultural Research, INIA-La Platina, Postharvest Unit, Santa Rosa 11610, Santiago 8831314, Chile
| | - Perla A. Ramos-Parra
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Eugenio Garza Sada 2501 Sur, Monterrey C.P. 64849, Nuevo Leon, Mexico
| | - Luis Cisneros-Zevallos
- Department of Horticultural Sciences, Texas A & M University, College Station, TX 77843-2133, USA
| | - Daniel A. Jacobo-Velázquez
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. General Ramón Corona 2514, Nuevo Mexico, Zapopan C.P. 45138, Jalisco, Mexico
- Tecnologico de Monterrey, The Institute for Obesity Research, Av. General Ramón Corona 2514, Nuevo Mexico, Zapopan C.P. 45138, Jalisco, Mexico
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Deng P, Yin R, Wang H, Chen L, Cao X, Xu X. Comparative analyses of functional traits based on metabolome and economic traits variation of Bletilla striata: Contribution of intercropping. FRONTIERS IN PLANT SCIENCE 2023; 14:1147076. [PMID: 37008465 PMCID: PMC10064063 DOI: 10.3389/fpls.2023.1147076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 02/27/2023] [Indexed: 06/19/2023]
Abstract
The intercropping practice has been regarded as a practical land-use selection to improve the management benefits of Bletilla striata plantations. The reports about the variety of economic and functional traits of Bletilla pseudobulb under intercropping systems were limited. The present study investigated the variation of economic and functional traits of Bletilla pseudobulb under different intercropping systems (the deep-rooted intercropping system: B. striata - Cyclocarya paliurus, CB; and the shallow-rooted intercropping system: B. striata - Phyllostachys edulis, PB). The functional traits were analyzed through non-targeted metabolomics based on GC-MS. The results indicated that the PB intercropping system significantly decreased the yield of Bletilla pseudobulb while significantly increasing the total phenol and flavonoids compared with the control (CK). However, there were no significant differences in all economic traits between CB and CK. The functional traits among CB, PB, and CK were separated and exhibited significant differences. Under different intercropping systems, B. striata may adopt different functional strategies in response to interspecific competition. The functional node metabolites (D-galactose, cellobiose, raffinose, D-fructose, maltose, and D-ribose) were up-regulated in CB, while the functional node metabolites (L-valine, L-leucine, L-isoleucine, methionine, L-lysine, serine, D-glucose, cellobiose, trehalose, maltose, D-ribose, palatinose, raffinose, xylobiose, L-rhamnose, melezitose, and maltotriose) were up-regulated in PB. The correlation between economic and functional traits depends on the degree of environmental stress. Artificial neural network models (ANNs) accurately predicted the variation in economic traits via the combination of functional node metabolites in PB. The correlation analysis of environmental factors indicated that Ns (including TN, NH4 +-, and NO3 --), SRI (solar radiation intensity), and SOC were the main factors that affected the economic traits (yield, total phenol, and total flavonoids). TN, SRI, and SOC were the main factors affecting the functional traits of the Bletilla pseudobulb. These findings strengthen our understanding of the variation of economic and functional traits of Bletilla pseudobulb under intercropping and clarify the main limiting environmental factors under B. striata intercropping systems.
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Affiliation(s)
- Pengfei Deng
- School of Forestry & Landscape Architecture, Anhui Agricultural University, Hefei, Anhui, China
| | - Ruoyong Yin
- School of Forestry & Landscape Architecture, Anhui Agricultural University, Hefei, Anhui, China
| | - Huiling Wang
- School of Forestry & Landscape Architecture, Anhui Agricultural University, Hefei, Anhui, China
- School of Architecture & Planning, Anhui Jianzhu University, Hefei, Anhui, China
| | - Leiru Chen
- School of Forestry & Landscape Architecture, Anhui Agricultural University, Hefei, Anhui, China
| | - Xiaoqing Cao
- School of Forestry & Landscape Architecture, Anhui Agricultural University, Hefei, Anhui, China
| | - Xiaoniu Xu
- School of Forestry & Landscape Architecture, Anhui Agricultural University, Hefei, Anhui, China
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Wang Y, Zhu W, Ren F, Zhao N, Xu S, Sun P. Transcriptional Memory in Taraxacum mongolicum in Response to Long-Term Different Grazing Intensities. PLANTS 2022; 11:plants11172251. [PMID: 36079633 PMCID: PMC9460496 DOI: 10.3390/plants11172251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 12/02/2022]
Abstract
Grazing, as an important land use method in grassland, has a significant impact on the morphological and physiological traits of plants. However, little is known about how the molecular mechanism of plant responds to different grazing intensities. Here, we investigated the response of Taraxacum mongolicum to light grazing and heavy grazing intensities in comparison with a non-grazing control. Using de novo transcriptome assembly, T. mongolicum leaves were compared for the expression of the different genes under different grazing intensities in natural grassland. In total, 194,253 transcripts were de novo assembled and comprised in nine leaf tissues. Among them, 11,134 and 9058 genes were differentially expressed in light grazing and heavy grazing grassland separately, with 5867 genes that were identified as co-expression genes in two grazing treatments. The Nr, SwissProt, String, GO, KEGG, and COG analyses by BLASTx searches were performed to determine and further understand the biological functions of those differentially expressed genes (DEGs). Analysis of the expression patterns of 10 DEGs by quantitative real-time RT-PCR (qRT-PCR) confirmed the accuracy of the RNA-Seq results. Based on a comparative transcriptome analysis, the most significant transcriptomic changes that were observed under grazing intensity were related to plant hormone and signal transduction pathways, carbohydrate and secondary metabolism, and photosynthesis. In addition, heavy grazing resulted in a stronger transcriptomic response compared with light grazing through increasing the of the secondary metabolism- and photosynthesis-related genes. These changes in key pathways and related genes suggest that they may synergistically respond to grazing to increase the resilience and stress tolerance of T. mongolicum. Our findings provide important clues for improving grassland use and protection and understanding the molecular mechanisms of plant response to grazing.
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Affiliation(s)
- Yalin Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
- Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China
| | - Wenyan Zhu
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471003, China
| | - Fei Ren
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
| | - Na Zhao
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471003, China
| | - Shixiao Xu
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471003, China
- Correspondence: (S.X.); (P.S.); Tel.: +86-13997163501 (S.X.); +86-13525415882 (P.S.)
| | - Ping Sun
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
- Correspondence: (S.X.); (P.S.); Tel.: +86-13997163501 (S.X.); +86-13525415882 (P.S.)
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Hu W, Sarengaowa, Guan Y, Feng K. Biosynthesis of Phenolic Compounds and Antioxidant Activity in Fresh-Cut Fruits and Vegetables. Front Microbiol 2022; 13:906069. [PMID: 35694311 PMCID: PMC9176389 DOI: 10.3389/fmicb.2022.906069] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 04/27/2022] [Indexed: 11/13/2022] Open
Abstract
Phenolic compounds are secondary metabolites and widely distributed in higher plants. When plants are subjected to injury stress, the rapid synthesis of more phenols is induced to result in injury defense response for wound healing and repair. Fresh-cut fruits and vegetables undergo substantial mechanical injury caused by pre-preparations such as peeling, coring, cutting and slicing. These processing operations lead to activate the biosynthesis of phenolic compounds as secondary metabolite. Phenolic compounds are important sources of antioxidant activity in fresh-cut fruits and vegetables. The wound-induced biosynthesis and accumulation of phenolic compounds in fresh-cut fruits and vegetables have been widely reported in recent years. This article provides a brief overview of research published over the last decade on the phenolic compounds and antioxidant activity in fresh-cut fruits and vegetables. It is suggested that fresh-cut processing as mechanical wounding stress can be used as an effective way to improve the nutritional composition and function of fresh-cut produces.
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Doghri M, Rodríguez VM, Kliebenstein DJ, Francisco M. Plant Responses Underlying Timely Specialized Metabolites Induction of Brassica Crops. FRONTIERS IN PLANT SCIENCE 2022; 12:807710. [PMID: 35185956 PMCID: PMC8850993 DOI: 10.3389/fpls.2021.807710] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/30/2021] [Indexed: 06/14/2023]
Abstract
A large subset of plant stress-signaling pathways, including those related with chemical defense production, exhibit diurnal or circadian oscillations. However the extent to which diurnal or circadian time influences the stress mediated accumulation of plant specialized metabolites remains largely unknown. Because plant responses to physical stress (e.g., wounding) is considered a common component of mounting a response against a broad range of environmental stresses, including herbivory, we have utilized mechanical wounding as the stress stimulus to determine the direct contribution of time of day on the induced defenses of Brassica crops. We analyzed glucosinolates (GSLs) from leaves of broccoli (Brassica oleracea) and turnip greens (Brassica rapa) following exposure to mechanical wounding at dawn (ZT0), mid-day (ZT4), and dusk (ZT8). Several GSLs differentially accumulated and their changes depended upon the time of day at wounding was performed. This response varied considerably between species. In a parallel experiment, we investigated whether diurnal activation of Brassica phytochemicals in response to wounding might prime plants against herbivore attack. Results showed that maximal response of plant chemical defense against larvae of the generalist pest Mamestra brassicae occurred at ZT0 in broccoli and ZT8 in turnip greens. Metabolome analysis for global trends of time dependent compounds showed that sulfur-containing phytochemicals, GSL hydrolysis products, auxin-signaling components, and other metabolites activators of plant disease resistance (nicotinamide and pipecolate) had important contributions to the responses of M. brassicae feeding behavior in broccoli at morning. Overall, the findings in this study highlight a significant role for time of day in the wound stress responsive metabolome, which can in turn affect plant-herbivore interactions.
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Affiliation(s)
- Maroua Doghri
- Misión Biológica de Galicia (MBG-CSIC), Pontevedra, Spain
- Department of Plant Biology, Faculty of Biology, Institute of Biotechnology and Biomedicine, University of Valencia, Valencia, Spain
| | | | - Daniel J. Kliebenstein
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
- DynaMo Center of Excellence, University of Copenhagen, Frederiksberg, Denmark
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Torres-Contreras AM, Nair V, Senés-Guerrero C, Pacheco A, González-Agüero M, Ramos-Parra PA, Cisneros-Zevallos L, Jacobo-Velázquez DA. Chemical Genetics Applied to Elucidate the Physiological Role of Stress-Signaling Molecules on the Wound-Induced Accumulation of Glucosinolates in Broccoli. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122660. [PMID: 34961133 PMCID: PMC8706940 DOI: 10.3390/plants10122660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/28/2021] [Accepted: 12/01/2021] [Indexed: 05/17/2023]
Abstract
Wounding stress is an effective strategy to induce glucosinolate (GS) biosynthesis in broccoli. However, there is insufficient knowledge on the physiological and molecular mechanisms underlying this stress response. Herein, a chemical-genetic approach was applied to elucidate the role of jasmonic acid (JA), ethylene (ET), and reactive oxygen species (ROS) on the wound-induced biosynthesis of GS. Broccoli was processed into chops to induce wounding stress. Broccoli chops were treated with phenidone (PHEN) and diphenyleneiodonium chloride (DPI) as inhibitors of JA and ROS biosynthesis, respectively, whereas 1-methylcyclopropene (1-MCP) was applied as an inhibitor of ET action. Wounding stress induced the expression of genes related to the biosynthesis of indolic and aliphatic GS, which was correlated with the accumulation of GS and modulated by the inhibitors of signaling molecules applied. Results of gene expression analysis indicated that JA played a key role in the activation of most genes, followed by ROS. Furthermore, except for the CYP79B2 gene, PHEN and 1-MCP synergistically downregulated the expression of GS biosynthetic genes evaluated, showing that the interaction between JA and ET was fundamental to modulate GS biosynthesis. Results presented herein increased our knowledge of the physiological and molecular mechanisms governing the wound-induced biosynthesis of GS in broccoli.
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Affiliation(s)
- Ana M. Torres-Contreras
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Eugenio Garza Sada 2501, Monterrey C.P. 64849, Nuevo Leon, Mexico; (A.M.T.-C.); (A.P.); (P.A.R.-P.)
| | - Vimal Nair
- Department of Horticultural Sciences, Texas A&M University, College Station, TX 77843, USA; (V.N.); (L.C.-Z.)
| | - Carolina Senés-Guerrero
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. General Ramón Corona 2514, Zapopan C.P. 45201, Jalisco, Mexico;
| | - Adriana Pacheco
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Eugenio Garza Sada 2501, Monterrey C.P. 64849, Nuevo Leon, Mexico; (A.M.T.-C.); (A.P.); (P.A.R.-P.)
| | - Mauricio González-Agüero
- Postharvest Unit, Institute for Agricultural Research, INIA-La Platina, Santa Rosa, Santiago 11610, Chile;
| | - Perla A. Ramos-Parra
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. Eugenio Garza Sada 2501, Monterrey C.P. 64849, Nuevo Leon, Mexico; (A.M.T.-C.); (A.P.); (P.A.R.-P.)
| | - Luis Cisneros-Zevallos
- Department of Horticultural Sciences, Texas A&M University, College Station, TX 77843, USA; (V.N.); (L.C.-Z.)
| | - Daniel A. Jacobo-Velázquez
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Av. General Ramón Corona 2514, Zapopan C.P. 45201, Jalisco, Mexico;
- Correspondence: ; Tel.: +52-312-119-1650
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Ma F, Luo L, Gao X. Metabolite and transcriptome analyses revealed the modulation of fructo-oligosaccharide on ileum metabolism of Taiping chickens. J Appl Microbiol 2021; 132:2249-2261. [PMID: 34608718 DOI: 10.1111/jam.15319] [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: 05/22/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 01/08/2023]
Abstract
AIM The metabolic markers and differentially expressed genes (DEGs) related to fructo-oligosaccharide (FOS) were screened, and the response of FOS to the ileum metabolic pathway of Taiping chickens was analysed. METHODS AND RESULTS Prebiotic are widely used in agricultural breeding for care and maintenance of animal health, especially FOS. Metabonomics evaluation of ileum of Taiping chicken ultra-performance liquid chromatography-quadruple time of-flight high-sensitivity mass spectrometry showed that 93 differentially altered metabolites were identified and divided into eight categories, of which organic acids and derivatives was the most important one. Transcriptomic analysis showed that DEGs were mainly enriched in drug metabolism-cytochrome p450, metabolism of xenobiotics by cytochrome p450, retinol metabolism and fat digestion and absorption. Integrated analysis of metabolite profiles and gene expression revealed that the significantly up-regulated GSTT1 was significantly correlated with most of the different lipid metabolites, suggesting that GSTT1 may play an important role in FOS regulation of lipid metabolism. CONCLUSIONS The results of this study suggest that supplementation of FOS can have a positive effect on gut metabolites, which may contribute to the overall health with indigenous chickens. SIGNIFICANCE AND IMPACT OF THE STUDY Insight into the responses of intestinal prebiotics of Taiping chicken is helpful to understand the role of prebiotics in maintaining intestinal microflora balance and improving immune response and productivity of poultry from the molecular and metabolic levels.
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Affiliation(s)
- Fang Ma
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, China
| | - Lintong Luo
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, China
| | - Xiang Gao
- Key Laboratory of Resource Utilization of Agricultural Solid Waste in Gansu Province, Tianshui Normal University, Tianshui, China
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