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plant metabolomics

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https://www.readbyqxmd.com/read/28738142/metabolomics-reveals-cu-oh-2-nanopesticide-activated-antioxidative-pathways-and-decreased-beneficial-antioxidants-in-spinach-leaves
#1
Lijuan Zhao, Yuxiong Huang, Adeyemi S Adeleye, Arturo A Keller
While the use of nanopesticides in modern agriculture continues to increase, their effects on crop plants are still poorly understood. Here, 4-week-old spinach plants grown in an artificial medium were exposed via foliar spray to Cu(OH)2 nanopesticide (0.18 and 18 mg/plant) or Cu ions (0.15 and 15 mg/plant) for 7 days. A gas chromatography-time of flight-mass spectrometry metabolomics approach was applied to assess metabolic alterations induced by Cu(OH)2 nanopesticide in spinach leaves. Exposure to Cu(OH)2 nanopesticide and copper ions induced alterations in the metabolite profiles of spinach leaves...
July 24, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28736740/datasets-of-mung-bean-proteins-and-metabolites-from-four-different-cultivars
#2
Akiko Hashiguchi, Wei Zhu, Jingkui Tian, Setsuko Komatsu
Plants produce a wide array of nutrients that exert synergistic interaction among whole combinations of nutrients. Therefore comprehensive nutrient profiling is required to evaluate their nutritional/nutraceutical value and health promoting effect. In order to obtain such datasets for mung bean, which is known as a medicinal plant with heat alleviating effect, proteomic and metabolomic analyses were performed using four cultivars from China, Thailand, and Myanmar. In total, 449 proteins and 210 metabolic compounds were identified in seed coat; whereas 480 proteins and 217 metabolic compounds were detected in seed flesh, establishing the first comprehensive dataset of mung bean for nutraceutical evaluation...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28735404/porous-graphitic-carbon-liquid-chromatography-mass-spectrometry-analysis-of-drought-stress-responsive-raffinose-family-oligosaccharides-in-plant-tissues
#3
Tiago F Jorge, Maria H Florêncio, Carla António
Drought is a major limiting factor in agriculture and responsible for dramatic crop yield losses worldwide. The adjustment of the metabolic status via accumulation of drought stress-responsive osmolytes is one of the many strategies that some plants have developed to cope with water deficit conditions. Osmolytes are highly polar compounds, analysis of whcih is difficult with typical reversed-phase chromatography. Porous graphitic carbon (PGC) has shown to be a suitable alternative to reversed-phase stationary phases for the analysis of highly polar compounds typically found in the plant metabolome...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28734161/evaluation-of-the-effect-of-extraction-solvent-and-organ-selection-on-the-chemical-profile-of-astragalus-spinosus-using-hptlc-multivariate-image-analysis
#4
Eman Shawky, Dina A Selim
The evaluation of extraction protocols for untargeted and targeted metabolomics was implemented for root and aerial organs of Astragalus spinosus in this work. The efficiency and complementarity of commonly used extraction solvents, namely petroleum ether, methylene chloride, ethyl acetate and n-butanol were considered for method evaluation using chemometric techniques in conjunction with new, simple, and fast high performance thin layer chromatography (HPTLC) method for fingerprint analysis by extracting information from a digitalized HPTLC plate using ImageJ software...
July 15, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28733872/metabolic-profiles-of-flooding-tolerant-mechanism-in-early-stage-soybean-responding-to-initial-stress
#5
Xin Wang, Wei Zhu, Akiko Hashiguchi, Minoru Nishimura, Jingkui Tian, Setsuko Komatsu
Metabolomic analysis of flooding-tolerant mutant and abscisic acid-treated soybeans suggests that accumulated fructose might play a role in initial flooding tolerance through regulation of hexokinase and phosphofructokinase. Soybean is sensitive to flooding stress, which markedly reduces plant growth. To explore the mechanism underlying initial-flooding tolerance in soybean, mass spectrometry-based metabolomic analysis was performed using flooding-tolerant mutant and abscisic-acid treated soybeans. Among the commonly-identified metabolites in both flooding-tolerant materials, metabolites involved in carbohydrate and organic acid displayed same profile at initial-flooding stress...
July 21, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28733420/sg2-type-r2r3-myb-transcription-factor-myb15-controls-defense-induced-lignification-and-basal-immunity-in-arabidopsis
#6
William R Chezem, Altamash Memon, Fu-Shuang Li, Jing-Ke Weng, Nicole Kho Clay
Lignification of cell wall appositions is a conserved basal defense mechanism in the plant innate immune response. However, the genetic pathway controlling defense-induced lignification remains unknown. Here, we demonstrate the Arabidopsis thaliana SG2-type R2R3-MYB transcription factor MYB15 as a regulator of defense-induced lignification and basal immunity. Loss of MYB15 reduces the content but not the composition of defense-induced lignin, whereas constitutive expression of MYB15 increases lignin content independently of immune activation...
July 21, 2017: Plant Cell
https://www.readbyqxmd.com/read/28727919/comprehensive-multiphase-cmp-nmr-monitoring-of-the-structural-changes-and-molecular-flux-within-a-growing-seed
#7
Blythe Fortier-McGill, Rudraksha Dutta Majumdar, Leayen Lam, Ronald Soong, Yalda Liaghati Mobarhan, Andre Sutrisno, Ries de Visser, Myrna J Simpson, Heather Wheeler, Malcolm Campbell, Antonie Gorissen, Andre J Simpson
A relatively recent technique termed Comprehensive Multiphase (CMP) NMR spectroscopy was used to study the growth and associated metabolomic changes of 13C-labeled wheat seeds and germinated seedlings. CMP-NMR enables the study of all phases in intact samples: liquid, gel-like, semi-solid and solid, by combining all required electronics into a single NMR probe and can be used for investigating biological processes such as seed germination. All components, from the most liquid like (i.e. dissolved metabolites) to the most rigid or solid like (seed coat) were monitored in-situ over 4 days...
July 20, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28726641/a-plant-fungal-type-phosphoenolpyruvate-carboxykinase-located-in-the-parasite-mitochondrion-ensures-glucose-independent-survival-of-toxoplasma-gondii
#8
Richard Nitzsche, Özlem Günay-Esiyok, Maximilian Tischer, Vyacheslav Zagoriy, Nishith Gupta
Toxoplasma gondii is considered as one of the most successful intracellular pathogens, because it can reproduce in varied nutritional milieus, encountered in diverse host-cell types of essentially any warm-blooded organism. Our earlier work has demonstrated that the acute (tachyzoite) stage of T. gondii depends on cooperativity of glucose and glutamine catabolism to meet biosynthetic demands. Either of these two nutrients can sustain the parasite survival; however, what determines the metabolic plasticity has not been resolved yet...
July 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28725238/a-non-targeted-metabolomics-approach-unravels-the-vocs-associated-with-the-tomato-immune-response-against-pseudomonas-syringae
#9
María Pilar López-Gresa, Purificación Lisón, Laura Campos, Ismael Rodrigo, José Luis Rambla, Antonio Granell, Vicente Conejero, José María Bellés
Volatile organic compounds (VOCs) emitted by plants are secondary metabolites that mediate the plant interaction with pathogens and herbivores. These compounds may perform direct defensive functions, i.e., acting as antioxidant, antibacterial, or antifungal agents, or indirectly by signaling the activation of the plant's defensive responses. Using a non-targeted GC-MS metabolomics approach, we identified the profile of the VOCs associated with the differential immune response of the Rio Grande tomato leaves infected with either virulent or avirulent strains of Pseudomonas syringae DC3000 pv...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28713439/predicting-future-biomass-yield-in-miscanthus-using-the-carbohydrate-metabolic-profile-as-a-biomarker
#10
Anne L Maddison, Anyela Camargo-Rodriguez, Ian M Scott, Charlotte M Jones, Dafydd M O Elias, Sarah Hawkins, Alice Massey, John Clifton-Brown, Niall P McNamara, Iain S Donnison, Sarah J Purdy
In perennial energy crop breeding programmes, it can take several years before a mature yield is reached when potential new varieties can be scored. Modern plant breeding technologies have focussed on molecular markers, but for many crop species, this technology is unavailable. Therefore, prematurity predictors of harvestable yield would accelerate the release of new varieties. Metabolic biomarkers are routinely used in medicine, but they have been largely overlooked as predictive tools in plant science. We aimed to identify biomarkers of productivity in the bioenergy crop, Miscanthus, that could be used prognostically to predict future yields...
July 2017: Global Change Biology. Bioenergy
https://www.readbyqxmd.com/read/28711788/grapevine-tissues-and-phenology-differentially-affect-soluble-carbohydrates-determination-by-capillary-electrophoresis
#11
Daniela Moreno, Federico Berli, Rubén Bottini, Patricia N Piccoli, María F Silva
Soluble carbohydrates distribution depends on plant physiology and, among other important factors, determines fruit yield and quality. In plant biology, the analysis of sugars is useful for many purposes, including metabolic studies. Capillary electrophoresis (CE) proved to be a powerful green separation technique with minimal sample preparation, even in complex plant tissues, that can provide high-resolution efficiency. Matrix effect refers to alterations in the analytical response caused by components of a sample other than the analyte of interest...
July 8, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28709434/integrating-multi-omics-analyses-of-nonomuraea-dietziae-to-reveal-the-role-of-soybean-oil-in-4-oh-meleu-4-csa-overproduction
#12
Huanhuan Liu, Di Huang, Lina Jin, Cheng Wang, Shaoxiong Liang, Jianping Wen
BACKGROUND: Nonomuraea dietziae is a promising microorganism to mediate the region-specific monooxygenation reaction of cyclosporine A (CsA). The main product [(4'-OH)MeLeu](4)-CsA possesses high anti-HIV/HCV and hair growth-stimulating activities while avoiding the immunosuppressive effect of CsA. However, the low conversion efficiency restricts the clinical application. In this study, the production of [(4'-OH)MeLeu](4)-CsA was greatly improved by 55.6% from 182.8 to 284.4 mg/L when supplementing soybean oil into the production medium, which represented the highest production of [(4'-OH)MeLeu](4)-CsA so far...
July 14, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28701756/seed-metabolome-analysis-of-a-transgenic-rice-line-expressing-cholera-toxin-b-subunit
#13
Takumi Ogawa, Koji Kashima, Yoshikazu Yuki, Mio Mejima, Shiho Kurokawa, Masaharu Kuroda, Atsushi Okazawa, Hiroshi Kiyono, Daisaku Ohta
Plant-based human vaccines have been actively developed in recent years, and rice (Oryza sativa L.) is one of the best candidate crops for their production and delivery. By expressing a modified cholera toxin B (CTB) subunit, we previously developed MucoRice-CTB, a rice-based vaccine against cholera, which is caused by infection of the intestine with the bacteria Vibrio cholerae. MucoRice-CTB lines have been extensively characterized by whole-genome sequencing and proteome analyses to evaluate the mutation profiles and proteome status, respectively...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700638/ijuhya-vitellina-sp-nov-a-novel-source-for-chaetoglobosin-a-is-a-destructive-parasite-of-the-cereal-cyst-nematode-heterodera-filipjevi
#14
Samad Ashrafi, Soleiman Helaly, Hans-Josef Schroers, Marc Stadler, Katja R Richert-Poeggeler, Abdelfattah A Dababat, Wolfgang Maier
Cyst nematodes are globally important pathogens in agriculture. Their sedentary lifestyle and long-term association with the roots of host plants render cyst nematodes especially good targets for attack by parasitic fungi. In this context fungi were specifically isolated from nematode eggs of the cereal cyst nematode Heterodera filipjevi. Here, Ijuhya vitellina (Ascomycota, Hypocreales, Bionectriaceae), encountered in wheat fields in Turkey, is newly described on the basis of phylogenetic analyses, morphological characters and life-style related inferences...
2017: PloS One
https://www.readbyqxmd.com/read/28693595/biochemical-characterization-and-1-h-nmr-based-metabolomics-revealed-melicope-lunu-ankenda-leaf-extract-a-potent-anti-diabetic-agent-in-rats
#15
Mizher Hezam Al-Zuaidy, Muhammad Waseem Mumtaz, Azizah Abdul Hamid, Amin Ismail, Suhaila Mohamed, Ahmad Faizal Abdul Razis
BACKGROUND: Type 2 diabetes mellitus (T2DM) is a metabolic disorder characterized by continuous hyperglycemia associated with insulin resistance and /or reduced insulin secretion. There is an emerging trend regarding the use of medicinal plants for the treatment of diabetes mellitus. Melicope lunu-ankenda (ML) is one of the Melicope species belonging to the family Rutaceae. In traditional medicines, its leaves and flowers are known to exhibit prodigious health benefits. The present study aimed at investigating anti-diabetic effect of Melicope lunu-ankenda (ML) leaves extract...
July 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28690628/comparison-of-salt-tolerance-in-soja-based-on-metabolomics-of-seedling-roots
#16
Mingxia Li, Rui Guo, Yang Jiao, Xiaofei Jin, Haiyan Zhang, Lianxuan Shi
Soybean is an important economic crop that is continually threatened by abiotic stresses, especially salt stress. Wild soybean is an important germplasm resource for the breeding of cultivated soybean. The root system plays a very important role in plant salt tolerance. To explore the salt tolerance-related mechanisms among Soja, we have demonstrated the seedling roots' growth and metabolomics in wild soybean, semi-wild soybean, and cultivated soybean under two types of salt stress by using gas chromatography-mass spectrometry...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28687892/transcriptome-and-metabolome-analysis-of-ferula-gummosa-boiss-to-reveal-major-biosynthetic-pathways-of-galbanum-compounds
#17
Ahmad Sobhani Najafabadi, Mohammad Reza Naghavi, Hamid Farahmand, Alireza Abbasi
Ferula gummosa Boiss. is an industrial and pharmaceutical plant that has been highly recognized for its valuable oleo-gum-resin, namely galbanum. Despite the fabulous value of galbanum, very little information on the genetic and biochemical mechanisms of its production existed. In the present study, the oleo-gum-resin and four organs (root, flower, stem, and leaf) of F. gummosa were assessed in terms of metabolic compositions and the expression of genes involved in their biosynthetic pathways. Results showed that the most accumulation of resin and essential oils were occurred in the roots (13...
July 7, 2017: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/28685965/high-spatial-resolution-mass-spectrometry-imaging-toward-single-cell-metabolomics-in-plant-tissues
#18
REVIEW
Rebecca L Hansen, Young Jin Lee
Mass spectrometry imaging (MSI) is a powerful tool that has advanced our understanding of complex biological processes by enabling unprecedented details of metabolic biology to be uncovered. Through the use of high-spatial resolution MSI, metabolite localizations can be obtained with high precision. Here we describe our recent progress to enhance the spatial resolution of matrix-assisted laser desorption/ionization (MALDI) MSI from ∼50 μm with the commercial configuration to ∼5 μm. Additionally, we describe our efforts to develop a 'multiplex MSI' data acquisition method to allow more chemical information to be obtained on a single tissue in a single instrument run, and the development of new matrices to improve the ionization efficiency for a variety of small molecule metabolites...
July 7, 2017: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
https://www.readbyqxmd.com/read/28685881/central-metabolite-and-sterol-profiling-divides-tobacco-male-gametophyte-development-and-pollen-tube-growth-into-eight-metabolic-phases
#19
Alexander Helmut Rotsch, Joachim Kopka, Ivo Feussner, Till Ischebeck
While changes in the transcriptome and proteome of developing pollen have been investigated in tobacco and other species, the metabolic consequences remain rather unclear. Here, a broad range of metabolites were investigated in a close succession of developmental stages. Thirteen stages of tobacco male gametophyte development were collected, ranging from tetrads to pollen tubes. Subsequently, the central metabolome and sterol composition were analyzed by GC-MS, monitoring 77 metabolites and 29 non-identified analytes...
July 7, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28684682/comparison-between-proteome-and-transcriptome-response-in-potato-solanum-tuberosum-l-leaves-following-potato-virus-y-pvy-infection
#20
Tjaša Stare, Katja Stare, Wolfram Weckwerth, Stefanie Wienkoop, Kristina Gruden
Plant diseases caused by viral infection are affecting all major crops. Being an obligate intracellular organisms, chemical control of these pathogens is so far not applied in the field except to control the insect vectors of the viruses. Understanding of molecular responses of plant immunity is therefore economically important, guiding the enforcement of crop resistance. To disentangle complex regulatory mechanisms of the plant immune responses, understanding system as a whole is a must. However, integrating data from different molecular analysis (transcriptomics, proteomics, metabolomics, smallRNA regulation etc...
July 6, 2017: Proteomes
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