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- Author:
- Monica Jamla; Suraj Patil; Shrushti Joshi; Tushar Khare; Vinay Kumar
- Source:
- Journal of plant growth regulation 2022 v.41 no.7 pp. 2579-2595
- ISSN:
- 0721-7595
- Subject:
- aluminum; arsenic; biosynthesis; cadmium; carcinogenicity; chelation; chromatin; epigenetics; food production; gene expression regulation; homeostasis; lead; mercury; metal tolerance; microRNA; non-coding RNA; oxidative stress; plant growth; transcription (genetics)
- Abstract:
- ... Heavy metals (HMs), in particular the toxic/carcinogenic non-essential ones including cadmium (Cd), arsenic (As), aluminum (Al), mercury (Hg), and lead (Pb) are known to exert severe impacts on plant growth and yields. HM contamination and/or toxicity is seen a major threat for global food production, quality, and security. Plants use intricate molecular mechanisms for responding and adapting to H ...
- DOI:
- 10.1007/s00344-021-10476-2
- https://doi.org/10.1007/s00344-021-10476-2
- Author:
- Laura Picard; Cédric Paris; Tiphaine Dhalleine; Emmanuelle Morin; Philippe Oger; Marie‐Pierre Turpault; Stéphane Uroz
- Source:
- Environmental microbiology 2022 v.24 no.2 pp. 784-802
- ISSN:
- 1462-2912
- Subject:
- acidification; biosynthesis; carbon; chelation; genome; hematite; iron; mutants; nonribosomal peptides; siderophores
- Abstract:
- ... Mineral weathering by microorganisms is considered to occur through a succession of mechanisms based on acidification and chelation. While the role of acidification is established, the role of siderophores is difficult to disentangle from the effect of the acidification. We took advantage of the ability of strain Collimonas pratensis PMB3(1) to weather minerals but not to acidify depending on the ...
- DOI:
- 10.1111/1462-2920.15508
- https://doi.org/10.1111/1462-2920.15508
- Author:
- S. Guesmi; M. Mahjoubi; P. Pujic; A. Cherif; P. Normand; H. Sghaier; H. Boubakri
- Source:
- International journal of environmental science and technology 2022 v.19 no.10 pp. 10105-10118
- ISSN:
- 1735-1472
- Subject:
- Acinetobacter baumannii; Botrytis cinerea; Fusarium graminearum; Kocuria rhizophila; Panicum turgidum; Staphylococcus pasteuri; amylases; antagonism; antibacterial properties; bacteriocins; biological control; biosynthesis; chelation; chitinase; cycloserine; environmental science; genome; genomics; growth retardation; iron; polysaccharides; protein degradation; proteinases; radiation resistance; secondary metabolites; siderophores; technology; terpenoids; xerophytes; Tunisia
- Abstract:
- ... In the present study, an analysis of antimicrobial activity; and an assessment of genomic biocontrol attributes of the recently described radioresistant strain Kocuria rhizophila PT10 were conducted. PT10, a Gram-positive and yellow pigmented actinobacterial strain, was isolated from the roots of xerophyte Panicum turgidum collected from Ksar Ghilane in the south of Tunisia and its genome was sequ ...
- DOI:
- 10.1007/s13762-021-03824-y
- https://doi.org/10.1007/s13762-021-03824-y
- Author:
- Le Zhao; Yun-Hao Zhu; Min Wang; Li-Gang Ma; Yong-Guang Han; Meng-Jia Zhang; Xing-Can Li; Wei-Sheng Feng; Xiao-Ke Zheng
- Source:
- 3 Biotech 2021 v.11 no.7 pp. 327
- ISSN:
- 2190-572X
- Subject:
- Phytolacca americana; biosynthesis; cadmium; cell walls; chelation; databases; flavonoids; gene expression regulation; glutathione; heavy metals; hyperaccumulators; lignin; photosynthesis; sulfur; thiols; transcriptome; transcriptomics; unigenes; vacuoles
- Abstract:
- ... To study the molecular mechanism of the hyperaccumulator plant Phytolacca americana against cadmium (Cd) stress, the leaves of P. americana treated with 400 μM Cd for 0, 2, 12, and 24 h were harvested for comparative transcriptome analysis. In total, 110.07 Gb of clean data were obtained, and 63,957 unigenes were acquired after being assembled. Due to the lack of P. americana genome information, o ...
- DOI:
- 10.1007/s13205-021-02865-x
- https://doi.org/10.1007/s13205-021-02865-x
- Author:
- Xiuwen Wu; Hui Tian; Li Li; Chunyun Guan; Zhenhua Zhang
- Source:
- Environmental pollution 2021 v.285 pp. 117218
- ISSN:
- 0269-7491
- Subject:
- Brassica napus; biosynthesis; cadmium; cell walls; chelation; demethylation; genotype; hemicellulose; hyperaccumulators; pectinesterase; pectins; phytoremediation; pollution; polygalacturonase; protoplasts; thylakoids; toxicity; transcription (genetics)
- Abstract:
- ... Oilseed rape (Brassica napus) has potential as a hyperaccumulator in the phytoremediation of cadmium (Cd)-contaminated soils. Oilseed rape varieties with higher Cd accumulation ability and Cd tolerance are ideal candidates for the hyperaccumulation of excess Cd. To explore the physiological and molecular mechanisms underlying Cd tolerance and high Cd accumulation in oilseed rape leaves, we examine ...
- DOI:
- 10.1016/j.envpol.2021.117218
- https://doi.org/10.1016/j.envpol.2021.117218
- Author:
- Tirthankar Bandyopadhyay; Manoj Prasad
- Source:
- Physiologia plantarum 2021 v.171 no.4 pp. 559-577
- ISSN:
- 0031-9317
- Subject:
- biosynthesis; chelation; chlorophyll; ecophysiology; electron transfer; genetically modified organisms; homeostasis; oxidation; oxidative phosphorylation; plant growth; rhizosphere; soil
- Abstract:
- ... Iron (Fe) is essential for plant growth and therefore plays a key role in influencing crop productivity worldwide. Apart from its central role in chlorophyll biosynthesis and oxidative phosphorylation (electron transfer), it is an important constituent of many enzymes involved in primary metabolism. Fe has different accessibilities to the roots in the rhizosphere depending upon whether it is ferro ...
- DOI:
- 10.1111/ppl.13184
- https://doi.org/10.1111/ppl.13184
- Author:
- Xu-Cong Lv; Qi Wu; Yu-Jie Yuan; Lu Li; Wei-Ling Guo; Xiao-Bin Lin; Zi-Rui Huang; Ping-Fan Rao; Lian-Zhong Ai; Li Ni
- Source:
- International journal of biological macromolecules 2022 v.219 pp. 964-979
- ISSN:
- 0141-8130
- Subject:
- Ganoderma lucidum; absorption; acetyl-CoA carboxylase; alpha-linolenic acid; bile acids; biomarkers; biosynthesis; blood glucose; body weight; carboxy-lyases; chelation; cholesterol; chromium; dysbiosis; gene expression; glucose; glucose tolerance; glucose transporters; glucose-6-phosphatase; glycerophospholipids; high fructose diet; hyperglycemia; hyperlipidemia; intestinal microorganisms; intestines; lipid metabolism; liver; mechanism of action; metabolomics; oral administration; phylotype; polysaccharides; steroid hormones; toxicity; triacylglycerols
- Abstract:
- ... Organic chromium is of great interest and has become an important chromium supplement resource in recent years because of its low toxicity and easy absorption. In our previous study, we synthesized a novel organic chromium [GLP-Cr] through the chelation of Ganoderma lucidum polysaccharide and chromium (III). The purpose of this study was to investigate the beneficial effects of GLP-Cr on the impro ...
- DOI:
- 10.1016/j.ijbiomac.2022.07.211
- https://doi.org/10.1016/j.ijbiomac.2022.07.211
- Author:
- Zhaohui Guo; Peng Zeng; Xiyuan Xiao; Chi Peng
- Source:
- Environmental pollution 2021 v.284 pp. 117387
- ISSN:
- 0269-7491
- Subject:
- Morus alba; abscisic acid; antioxidant enzymes; ascorbate peroxidase; biosynthesis; catalase; catalytic activity; cell walls; chelation; enzyme activity; ethylene; gene expression regulation; gene ontology; glutathione; leaves; minerals; mitogen-activated protein kinase; mulberries; peroxidase; photosynthesis; poisoning; polluted soils; pollution; signal transduction; transcription (genetics); transcriptome; transportation
- Abstract:
- ... Mulberry has been widely studied for its capacity to tolerate heavy metals. However, the anatomical and molecular response mechanisms of Cd detoxification and transportation in mulberry have not been fully elucidated. In this study, the anatomical characteristics, Cd and mineral element uptake and transport, and transcriptome profiling of mulberry were studied under Cd stress. The results showed t ...
- DOI:
- 10.1016/j.envpol.2021.117387
- https://doi.org/10.1016/j.envpol.2021.117387
- Author:
- Baskaran Ramalingam; Srinivasan Shanmugham Venkatachalam; Manikantan Syamala Kiran; Sujoy K. Das
- Source:
- Environmental pollution 2021 v.278 pp. 116847
- ISSN:
- 0269-7491
- Subject:
- Shewanella oneidensis; adsorption; aqueous solutions; biofilm; biomass; biosynthesis; carbohydrates; chelation; chemical composition; chromium; graphene; magnetic separation; nanocomposites; pH; pollution; polymers; response surface methodology; surface area; synergism; wastewater; wastewater treatment; zeta potential
- Abstract:
- ... Sustainable treatment of wastewater containing trivalent chromium (Cr³⁺) remains a significant challenge owing to the several limitations of the existing methodologies. Herein, combination of biosynthesis and Response Surface Methodology (RSM) for the fabrication and optimization of Shewanella oneidensis biofilm functionalized graphene-magnetite (GrM) nanobiocomposite was adopted as a ‘living func ...
- DOI:
- 10.1016/j.envpol.2021.116847
- https://doi.org/10.1016/j.envpol.2021.116847
- Author:
- Bin Liu; Wanwan Hou; Ke Li; Qing Chen; Yaxin Liu; Tianli Yue
- Source:
- International journal of food microbiology 2021 v.337 pp. 108927
- ISSN:
- 0168-1605
- Subject:
- RNA; Salmonella Enteritidis; arginine; bacterial growth; bacterial motility; biosynthesis; chelation; egg albumen; food microbiology; genes; homeostasis; mutants; nucleotide sequences; sulfates; tricarboxylic acid cycle
- Abstract:
- ... Salmonella enterica serovar Enteritidis (S. Enteritidis) presents an excellent capacity to survive in egg white, which is a hostile environment for bacterial growth. To reveal its survival mechanism, this study focuses on the specific gene SEN1393, which has been found to exist only in the genomic sequence of S. Enteritidis. The survival capacity of the deletion mutant strain ΔSEN1393 was proven t ...
- DOI:
- 10.1016/j.ijfoodmicro.2020.108927
- https://doi.org/10.1016/j.ijfoodmicro.2020.108927
- Author:
- Keji Wang; Haiying Yu; Daihua Ye; Yongdong Wang; Xizhou Zhang; Huagang Huang; Zicheng Zheng; Tingxuan Li
- Source:
- Science of the total environment 2021 v.765 pp. 142710
- ISSN:
- 0048-9697
- Subject:
- Oryza sativa; biosynthesis; brown rice; cadmium; chelation; environment; glutathione; glutathione transferase; humans; phytochelatins
- Abstract:
- ... Cadmium (Cd) is harmful to rice and human, thus screening and understanding the mechanism of Cd-safe rice lines, which accumulate little Cd in brown rice, is necessary. D62B was screened as a Cd-safe rice line with low Cd translocation from roots to shoots, and there must be a switch restricting Cd transport from roots to shoots. Here we found that shoot base played the role as switch. Cd concentr ...
- DOI:
- 10.1016/j.scitotenv.2020.142710
- https://doi.org/10.1016/j.scitotenv.2020.142710
12. The Availability of Iron Is Involved in the Murine Experimental Toxoplasma gondii Infection Outcome
- Author:
- Mário Cézar Oliveira; Loyane Bertagnolli Coutinho; Marcos Paulo Oliveira Almeida; Marisol Pallete Briceño; Ester Cristina Borges Araujo; Neide Maria Silva
- Source:
- Microorganisms 2020 v.8 no.4 pp. -
- ISSN:
- 2076-2607
- Subject:
- Protozoa; Toxoplasma gondii; biodegradation; biosynthesis; blood serum; chelating agents; chelation; deferoxamine; dysbiosis; ferrous sulfate; fetal development; histology; immune response; inflammation; iron; iron overload; liver; lungs; medicine; mice; parasite load; parasitism; small intestine
- Abstract:
- ... Iron is an important constituent of our environment, being necessary for both mammalian and pathogenic protozoa survival. Iron-containing proteins exert a wide range of biological processes such as biodegradation and biosynthesis, as well as immune function, fetal development, and physical and mental well-being. This work aimed to investigate the effect of iron deprivation in Toxoplasma gondii inf ...
- DOI:
- 10.3390/microorganisms8040560
- https://doi.org/10.3390/microorganisms8040560
- Author:
- Sen Wang; Yu-ke Chen; Abdallah Ghonimy; Ting Yu; Yong-sheng Gao; Zhen-chao Wu; Qiu-ju Wang; Dong-ming Zhang
- Source:
- Aquaculture reports 2020 v.17 pp. 100394
- ISSN:
- 2352-5134
- Subject:
- Chlorella; antioxidant activity; beta-carotene; biosynthesis; carnitine; chelation; chlorophyll; fish fry; gene expression; gene expression regulation; genes; iron; lethal concentration 50; live feeds; magnesium; microalgae; nutritive value; photosynthesis; population density; population growth; specific growth rate
- Abstract:
- ... High nutritive microalgae is a key factor that affecting the live feeds nutritional value and subsequently fish fry quality. We evaluated the effect of l-carnitine supplementation level on the population growth, photosynthetic pigment biosynthesis, and antioxidant capability of the pigment-protein complexes in the marine Chlorella sp. Five different l-carnitine levels (0, 5, 50, 100, and 200 mg L⁻ ...
- DOI:
- 10.1016/j.aqrep.2020.100394
- https://doi.org/10.1016/j.aqrep.2020.100394
- Author:
- Tahjib-Ul-Arif Md; Zahan Mst Ishrat; Karim Md Masudul; Imran Shahin; Iii Charles T.; Islam Md Saiful; Mia Md Ashik; Hannan Md Abdul; Rhaman Mohammad Saidur; Hossain Md Afzal; Brestic Marian; Skalicky Milan; Murata Yoshiyuki
- Source:
- International journal of molecular sciences 2021 v.22 no.13 pp. 7235
- ISSN:
- 1422-0067
- Subject:
- abiotic stress; antioxidant activity; biosynthesis; chelation; chlorophyll; citrates; citric acid; heavy metals; osmoregulation; plant growth; plant hormones; reactive oxygen species; secondary metabolites; stress tolerance
- Abstract:
- ... Several recent studies have shown that citric acid/citrate (CA) can confer abiotic stress tolerance to plants. Exogenous CA application leads to improved growth and yield in crop plants under various abiotic stress conditions. Improved physiological outcomes are associated with higher photo-synthetic rates, reduced reactive oxygen species, and better osmoregulation. Application of CA also induces ...
- Handle:
- 10113/7481989
- DOI:
- 10.3390/ijms22137235
- https://doi.org/10.3390/ijms22137235
- Author:
- Yan Zhang; Jiangtao Chao; Xiuchun Li; Chong Zhang; Rayyan Khan; Shasha Du; Na Xu; Lin Song; Haiwei Liu; Yi Shi
- Source:
- Physiologia plantarum 2021 v.173 no.1 pp. 369-383
- ISSN:
- 0031-9317
- Subject:
- Nicotiana rustica; Nicotiana tabacum; biosynthesis; cadmium; cell walls; chelation; cytoplasm; enzyme activity; fauna; flora; gene expression regulation; glutathione transferase; oxidation; phenylalanine; soil; superoxide dismutase; toxicity; transcriptome; transcriptomics
- Abstract:
- ... Cadmium (Cd) is known as one of the most hazardous elements in the environment and a persistent soil constraint toxic to all flora and fauna. In this study, we conducted physiological, biochemical, and transcriptomic analyses of Nicotiana rustica (N. rustica) and Nicotiana tabacum (N. tabacum) treated with CdCl₂ to know the underlying molecular mechanisms of Cd accumulation. As a result, N. rustic ...
- DOI:
- 10.1111/ppl.13431
- https://doi.org/10.1111/ppl.13431
- Author:
- M. Hernández-Garnica; J.D. García-García; R. Moreno-Sánchez; R. Sánchez-Thomas
- Source:
- Environmental pollution 2021 v.272 pp. 116007
- ISSN:
- 0269-7491
- Subject:
- Euglena gracilis; biosynthesis; calcium; cell growth; chelation; chlorophyll; hyperaccumulators; lead; oxygen consumption; photosynthesis; pollution; polyphosphates; sulfates; thiols; viability
- Abstract:
- ... Worldwide increasing levels of lead in water systems require the search for efficient ecologically friendly strategies to remove it. Hence, lead accumulation by the free-living algae-like Euglena gracilis and its effects on cellular growth, respiration, photosynthesis, chlorophyll, calcium, and levels of thiol- and phosphate-molecules were analyzed. Photosynthetic cells were able to accumulate 462 ...
- DOI:
- 10.1016/j.envpol.2020.116007
- https://doi.org/10.1016/j.envpol.2020.116007
- Author:
- Pratika Singh; Azmi Khan; Rakesh Kumar; Ravinsh Kumar; Vijay Kumar Singh; Amrita Srivastava
- Source:
- World journal of microbiology & biotechnology 2020 v.36 no.12 pp. 178
- ISSN:
- 0959-3993
- Subject:
- bioinformatics; bioremediation; biosensors; biosynthesis; biotechnology; chelation; chemical structure; microbiology; peptides; secondary metabolites; siderophores; starvation
- Abstract:
- ... Siderophores are metal chelating secondary metabolites secreted by almost all organisms. Beside iron starvation, the ability to produce siderophores depends upon several other factors. Chemical structure of siderophore is very complex with vast structural diversity, thus the principle challenge involves its detection, quantification, purification and characterisation. Metal chelation is its most f ...
- DOI:
- 10.1007/s11274-020-02955-7
- https://doi.org/10.1007/s11274-020-02955-7
- Author:
- Qiyu Zhao; Chunxiu Gu; Yuehang Sun; Guangzhe Li; Lin-Lin Li; Lin Hao
- Source:
- Journal of plant growth regulation 2021 v.40 no.4 pp. 1764-1776
- ISSN:
- 0721-7595
- Subject:
- Arabidopsis; biosynthesis; cadmium; cell walls; chelation; flavonoids; genes; mutants; naphthalene; oxidative stress; pectinesterase; plant growth; salicylic acid
- Abstract:
- ... The regulatory role of salicylic acid (SA) has been extensively reported in plants subjected to cadmium (Cd) stress. However, the underlying mechanisms still remain to be elucidated. This study provided evidence that root biological processes played crucial roles in SA-altering Arabidopsis plant responses to Cd stress. The nahG (naphthalene hydroxylase G)-transformed plants (with a significantly r ...
- DOI:
- 10.1007/s00344-020-10233-x
- https://doi.org/10.1007/s00344-020-10233-x
- Author:
- Hengzhi Wang; Lipeng Wang; Xiaolin Zhang; Shuang Bai; Tao Jin; Weitang Liu; Jinxin Wang
- Source:
- Journal of agricultural and food chemistry 2021 v.69 no.25 pp. 7168-7177
- ISSN:
- 1520-5118
- Subject:
- 4-hydroxyphenylpyruvate dioxygenase; Arabidopsis thaliana; Echinochloa crus-galli; Escherichia coli; Spirodela polyrhiza; biosynthesis; carotenoids; chelation; chemical structure; death; electron transport chain; energy; food chemistry; hydrolysis; mechanism of action; mesotrione; necrosis; paddies; photosystem II; phytotoxicity; reactive oxygen species
- Abstract:
- ... Tripyrasulfone is a novel herbicide post-emergence applied in paddy fields. In this study, tripyrasulfone phytotoxicity and its mode of action were investigated. Within 3–7 days after treatment (DAT), tripyrasulfone caused strong bleaching symptoms on newly developed leaves of Echinochloa crus-galli followed by necrosis prior to death within 14 DAT. By investigating pigment composition, photosynth ...
- DOI:
- 10.1021/acs.jafc.1c01294
- https://doi.org/10.1021/acs.jafc.1c01294
- Author:
- Marta Ribeiro; Manuel Simões
- Source:
- Environmental chemistry letters 2019 v.17 no.4 pp. 1485-1494
- ISSN:
- 1610-3653
- Subject:
- antibiotics; bacterial growth; biosynthesis; chelation; drug therapy; environmental science; iron; siderophores; starvation; virulence
- Abstract:
- ... The increasing bacterial resistance from antibiotic overuse has fostered the search for novel antimicrobial strategies. In particular, bacterial systems involving iron (Fe) uptake are studied to develop new therapeutics against infectious diseases, because iron is crucial for bacterial growth and is a main virulence factor for infection. Iron assimilation is commonly based on the production of sid ...
- DOI:
- 10.1007/s10311-019-00887-9
- https://doi.org/10.1007/s10311-019-00887-9
- Author:
- Clifford D. Hardy; Alison Butler
- Source:
- Journal of natural products 2019 v.82 no.4 pp. 990-997
- ISSN:
- 1520-6025
- Subject:
- Alcanivorax; bioinformatics; biosynthesis; chelation; enzymes; gallium; genome mining; iron; ligands; multigene family; nuclear magnetic resonance spectroscopy; peptides; photochemical reactions; prediction; siderophores; titration
- Abstract:
- ... Identified through a bioinformatics approach, a nonribosomal peptide synthetase gene cluster in Alcanivorax pacificus encodes the biosynthesis of the new siderophore pacifibactin. The structure of pacifibactin differs markedly from the bioinformatic prediction and contains four bidentate metal chelation sites, atypical for siderophores. Genome mining and structural characterization of pacifibactin ...
- DOI:
- 10.1021/acs.jnatprod.8b01073
- https://doi.org/10.1021/acs.jnatprod.8b01073
- Author:
- Xiuwen Wu; Haixing Song; Chunyun Guan; Zhenhua Zhang
- Source:
- Science of the total environment 2020 v.728 pp. 138833
- ISSN:
- 0048-9697
- Subject:
- Brassica napus; Fourier transform infrared spectroscopy; atomic absorption spectrometry; biosynthesis; boron; cadmium; cell viability; cell walls; cellulose; chelation; demethylation; environment; fluorescent dyes; hemicellulose; metabolomics; organelles; pectins; plant root cells; polygalacturonase; rapeseed; reactive oxygen species; rice oil; toxicity; transcriptomics; xyloglucan:xyloglucosyl transferase; China
- Abstract:
- ... In Southern China, rice-oil rotations occur on soils with high levels of cadmium (Cd) and low levels of available boron (B). Boron can alleviate Cd toxicity, as it affects the plant cell wall structures and the components that block the entry of Cd into the cytoplasm; however, these mechanisms are not well understood. Fourier transform infrared spectroscopy (FTIR), fluorescent probe dye, electron ...
- DOI:
- 10.1016/j.scitotenv.2020.138833
- https://doi.org/10.1016/j.scitotenv.2020.138833
- Author:
- Rong-Rong Zhao; Bao-Yuan Qu; Yi-Ping Tong; Chun-Qin Zou
- Source:
- Journal of plant nutrition 2019 v.42 no.14 pp. 1624-1636
- ISSN:
- 1532-4087
- Subject:
- Triticum; biofortification; biosynthesis; chelation; gene expression; gene expression regulation; genes; hydroponics; iron; leaves; nicotianamine; nicotianamine synthase; nitrogen; nitrogen compounds; phloem; roots; winter wheat; zinc
- Abstract:
- ... Nitrogen (N) is critical for micronutrient biofortification in wheat grain and is essential for a series of nitrogenous compounds biosynthesis. This study aims to assess the role of improved N supply in iron (Fe) and zinc (Zn) enrichment and expression of genes related to Zn and Fe chelation and transport in winter wheat. Potting and hydroponic culture experiments were conducted to study the effec ...
- DOI:
- 10.1080/01904167.2019.1630427
- https://doi.org/10.1080/01904167.2019.1630427
- Author:
- Arakkaveettil Kabeer Farha; Qiong-Qiong Yang; Gowoon Kim; Hua-Bin Li; Fan Zhu; Hong-Yan Liu; Ren-You Gan; Harold Corke
- Source:
- Food bioscience 2020 v.38 pp. 100751
- ISSN:
- 2212-4292
- Subject:
- adhesins; bacterial growth; biofilm; biosynthesis; cell membranes; cell walls; chelation; fatty acids; gene expression; human health; hydrogels; molecular weight; multiple drug resistance; polyphenols; virulence
- Abstract:
- ... Excessive use of antibiotics has led to the emergence of multidrug-resistant bacteria that are a serious threat to human health. There is a need to develop efficient antibacterial agents to address this problem. Tannins are high molecular weight (MW) polyphenols (500−30,000 Da), distributed throughout the plant kingdom. Tannins are one of the major compounds in plants with potential health benefit ...
- DOI:
- 10.1016/j.fbio.2020.100751
- https://doi.org/10.1016/j.fbio.2020.100751
- Author:
- Zunkang Zhao; Xiaofeng Gao; Ye Ke; Minmin Chang; Lu Xie; Xiaofeng Li; Minghua Gu; Jiping Liu; Xinlian Tang
- Source:
- Plant and soil 2019 v.437 no.1-2 pp. 273-289
- ISSN:
- 0032-079X
- Subject:
- aluminum; benzoxazinoids; biosynthesis; chelation; corn; cultivars; exudation; hydroxamic acids; root growth; root tips; salicylic acid
- Abstract:
- ... BACKGROUND AND AIMS: Although aluminum (Al) exclusion via root exudation of organic matters is a common resistance mechanism adopted by many plant species, whether root exudation of benzoxazinoids, such as hydroxamic acids (HAs), confers Al resistance remains unclear. METHODS: We performed physiological characterization for an Al-resistant maize cultivar TY and a sensitive maize cultivar ZD. RESUL ...
- DOI:
- 10.1007/s11104-019-03971-9
- https://doi.org/10.1007/s11104-019-03971-9
- Author:
- Leonard Kaysser
- Source:
- Natural product reports 2019 v.36 no.12 pp. 1654-1686
- ISSN:
- 1460-4752
- Subject:
- Lewis acids; Lewis bases; active sites; biosynthesis; chelation; diabetes; genome; hypertension; medicine; metalloproteinases; peptides; thrombosis
- Abstract:
- ... Covering: up to 2019 Inhibitors of proteases and related enzymes have versatile applications in medicine and other areas. They are used in the clinic e.g. for the treatment of cancer, hypertension, thrombosis, diabetes as well as viral and bacterial infections. Most of these drugs are produced synthetically but a substantial part of them has been developed from or are inspired by natural products. ...
- DOI:
- 10.1039/c8np00095f
- https://doi.org/10.1039/c8np00095f
- Author:
- Minxia Chou; Yali Sun; Jieyu Yang; Yujie Wang; Yajuan Li; Guijie Yuan; Dehui Zhang; Jiamei Wang; Gehong Wei
- Source:
- Science of the total environment 2019 v.656 pp. 1346-1357
- ISSN:
- 0048-9697
- Subject:
- Medicago lupulina; antimicrobial properties; antioxidant activity; biosynthesis; cell walls; chelation; copper; ecological restoration; ethylene; gene expression; gene expression regulation; genes; heavy metals; legumes; metal tolerance; microstructure; nitrogen-fixing bacteria; nodulation; peptides; phenotype; sequence analysis; symbiosis; transcription (genetics); ultrastructure
- Abstract:
- ... Legume-rhizobial symbiosis plays an important role in agriculture and ecological restoration. However, knowledge of the molecular mechanisms, especially the microstructure and global transcriptional profiling, of the symbiosis process under heavy metal contamination is limited. In this study, a heavy metal-tolerant legume, Medicago lupulina, was treated with different concentrations of copper (Cu) ...
- DOI:
- 10.1016/j.scitotenv.2018.12.005
- https://doi.org/10.1016/j.scitotenv.2018.12.005
- Author:
- Jamie Selby-Pham; Adrian Lutz; Laura T. Moreno-Moyano; Berin A. Boughton; Ute Roessner; Alexander A. T. Johnson
- Source:
- Rice 2017 v.10 no.1 pp. 14
- ISSN:
- 1939-8425
- Subject:
- Hordeum vulgare; Oryza sativa; amines; barley; biosynthesis; chelation; diurnal variation; gene expression; genes; iron; mass spectrometry; metabolites; nutrient deficiencies; oxidative stress; phytosiderophores; remediation; rhizosphere; rice; roots; secretion; stress response; wheat
- Abstract:
- ... BACKGROUND: Rice (Oryza sativa L.) is highly susceptible to iron (Fe) deficiency due to low secretion levels of the mugineic acid (MA) family phytosiderophore (PS) 2′-deoxymugineic acid (DMA) into the rhizosphere. The low levels of DMA secreted by rice have proved challenging to measure and, therefore, the pattern of DMA secretion under Fe deficiency has been less extensively studied relative to o ...
- DOI:
- 10.1186/s12284-017-0152-7
- PubMed:
- 28429296
- PubMed Central:
- PMC5398970
- https://doi.org/10.1186/s12284-017-0152-7
- Author:
- Azmi Khan; Pratika Singh; Amrita Srivastava
- Source:
- Microbiological research 2017 pp. -
- ISSN:
- 0944-5013
- Subject:
- antimicrobial properties; bioremediation; biosynthesis; chelating agents; chelation; heavy metals; iron; mammals; microorganisms; oxidative stress; pathogens; peptides; secondary metabolites; siderophores; stress tolerance; virulence
- Abstract:
- ... Siderophores, the secondary metabolite of various microorganisms are ferric ion specific chelators secreted under iron stressed condition. These non-ribosomal peptides have been classified as catecholate, hydroxamate, carboxylate and mixed types. Recent studies focus on discovery of possible mammalian siderophores. The biosynthesis pathway including non-ribosomal dependent as well as non-ribosomal ...
- DOI:
- 10.1016/j.micres.2017.10.012
- https://doi.org/10.1016/j.micres.2017.10.012
- Author:
- Kalansuriya Pabasara; Quezada Michelle; Espósito Breno P.; Capon Robert J.
- Source:
- Journal of natural products 2017 v.80 no.3 pp. 609-615
- ISSN:
- 1520-6025
- Subject:
- Talaromyces; biosynthesis; chelating agents; chelation; chemical analysis; culture media; fungi; iron; metabolites; mud daubers; siderophores; spectral analysis
- Abstract:
- ... Chemical analysis of an Australian mud dauber wasp-associated fungus, Talaromyces sp. (CMB-W045), yielded five new coprogen siderophores, talarazines A–E (1–5), together with dimerumic acid (6), desferricoprogen (7), and elutherazine B (8). Structures inclusive of absolute configuration were assigned on the basis of detailed spectroscopic analysis and application of the C₃ Marfey’s method. We repo ...
- DOI:
- 10.1021/acs.jnatprod.6b00889
- https://doi.org/10.1021/acs.jnatprod.6b00889
- Author:
- Md Kamrul Hasan; Golam Jalal Ahammed; Jie Zhou; Ming-Xing Xu; Jing-Quan Yu; Xiao-Jian Xia
- Source:
- Chemosphere 2016 pp. -
- ISSN:
- 0045-6535
- Subject:
- reactive oxygen species; vacuoles; genes; roots; oxidative stress; tomatoes; glutathione; cell walls; cadmium; homeostasis; gene expression regulation; transcription factors; plant growth; phytochelatins; enzyme activity; biosynthesis; nitric oxide; phytotoxicity; stress response; chelation
- Abstract:
- ... Glutathione (GSH) plays a critical role in plant growth, development and responses to stresses. However, the mechanism by which GSH regulates tolerance to cadmium (Cd) stress still remains unclear. Here we show that inhibition of GSH biosynthesis by buthionine sulfoximine (BSO) aggravated Cd toxicity by increasing accumulation of reactive oxygen species (ROS) and reducing contents of nitric oxide ...
- DOI:
- 10.1016/j.chemosphere.2016.07.053
- https://doi.org/10.1016/j.chemosphere.2016.07.053
- Author:
- Nikolai P. Bityutskii; Kirill L. Yakkonen; Anastasiya I. Petrova; Alexey L. Shavarda
- Source:
- Journal of plant physiology 2017 v.218 pp. 100-108
- ISSN:
- 0176-1617
- Subject:
- Cucumis sativus; acid soils; aluminum; biosynthesis; chelation; cucumbers; cultivars; fumaric acid; genotype; hydroponics; iron; metabolomics; nutrient solutions; pH; plant growth; roots; sap; serine; shoots; silicon; succinic acid; xylem
- Abstract:
- ... Aluminium (Al) is one of the major stressors for plants in acidic soils, negatively affecting plant growth and nutrient balances. Significant efforts have been undertaken to understand mechanisms of Al tolerance in plants. However, little is known of the relevance of iron (Fe) and silicon (Si) nutrition under Al stress conditions. The objectives of this study were to determine whether effects indu ...
- DOI:
- 10.1016/j.jplph.2017.08.003
- https://doi.org/10.1016/j.jplph.2017.08.003
- Author:
- Huei Hsuan Tsai; Wolfgang Schmidt
- Source:
- Trends in plant science 2017 v.22 no.6 pp. 538-548
- ISSN:
- 1360-1385
- Subject:
- alkaline soils; biosynthesis; chelation; coumarins; crops; iron; pH; plant communities; solubility
- Abstract:
- ... Iron is one of the most abundant elements in soils, but its low phytoavailability at high pH restricts plant communities on alkaline soils to taxa that have evolved efficient strategies to increase iron solubility. Recent evidence provides support for a previously underestimated role of root-secreted coumarins in mobilizing iron through reduction and chelation as part of an orchestrated strategy e ...
- DOI:
- 10.1016/j.tplants.2017.03.008
- https://doi.org/10.1016/j.tplants.2017.03.008
- Author:
- Nusrat Ali; Soumitra Paul; Dipak Gayen; Sailendra Nath Sarkar; Swapan K Datta; Karabi Datta
- Source:
- Rice 2013 v.6 no.1 pp. 12
- ISSN:
- 1939-8425
- Subject:
- RNA interference; germination; biosynthesis; inositol phosphates; phytic acid; rice; bioavailability; myo-inositol; iron; transgenic plants; cations; biochemical pathways; endosperm; genes; abscisic acid; waste management; phosphorus; chelation
- Abstract:
- ... BACKGROUND: Phytic acid (InsP₆) is considered as the major source of phosphorus and inositol phosphates in cereal grains. Reduction of phytic acid level in cereal grains is desirable in view of its antinutrient properties to maximize mineral bioavailability and minimize the load of phosphorus waste management. We report here RNAi mediated seed-specific silencing of myo-inositol-3-phosphate synthas ...
- DOI:
- 10.1186/1939-8433-6-12
- PubMed:
- 24280240
- PubMed Central:
- PMC4883737
- https://doi.org/10.1186/1939-8433-6-12
- Author:
- Asuru Awuri P.; An Mier; Busenlehner Laura S.
- Source:
- Biochemistry 2012 v.51 no.36 pp. 7116-7127
- ISSN:
- 1520-4995
- Subject:
- active sites; biosynthesis; chelation; deuterium; heme; humans; iron; mass spectrometry; protoporphyrin; solvents
- Abstract:
- ... Human ferrochelatase (EC 4.99.1.1) catalyzes the insertion ferrous iron into protoporphyrin IX as the last step in heme biosynthesis, an essential process to most organisms given the vast intracellular functions of heme. Even with multiple ferrochelatase structures available, the exact mechanism for iron insertion into porphyrin is still a matter for debate. It is clear, however, that conformation ...
- DOI:
- 10.1021/bi300704c
- https://doi.org/10.1021/bi300704c
- Author:
- Jessica L. Heath; Joshua M. Weiss; Catherine P. Lavau; Daniel S. Wechsler
- Source:
- Nutrients 2013 v.5 no.8 pp. 2836-2859
- ISSN:
- 2072-6643
- Subject:
- DNA replication; biosynthesis; cell division; cell growth; cell respiration; chelating agents; chelation; homeostasis; iron; neoplasm cells; neoplasms; therapeutics
- Abstract:
- ... Iron is essential for normal cellular function. It participates in a wide variety of cellular processes, including cellular respiration, DNA synthesis, and macromolecule biosynthesis. Iron is required for cell growth and proliferation, and changes in intracellular iron availability can have significant effects on cell cycle regulation, cellular metabolism, and cell division. Perhaps not surprising ...
- DOI:
- 10.3390/nu5082836
- PubMed:
- 23887041
- PubMed Central:
- PMC3775231
- https://doi.org/10.3390/nu5082836
- Author:
- Manickam Sugumaran; William E. Robinson
- Source:
- Comparative biochemistry and physiology 2012 v.163 no.1 pp. 1-25
- ISSN:
- 1096-4959
- Subject:
- Ascidiacea; antibiotics; bioactive properties; biocompatible materials; biosynthesis; blood cells; chelation; crosslinking; insects; iron; oligopeptides; post-translational modification; proteins; sclerotization; tissue repair; tyrosine; vanadium
- Abstract:
- ... Several species of ascidians (phylum Chordata, subphylum Urochordata) contain a group of oligopeptides called “tunichromes” in their blood cells. These peptides have been implicated in (a) metal chelation and accumulation/sequestration of vanadium or iron; (b) crosslinking of structural fibers in tunic formation, (c) wound healing and (d) defense reactions. However, their biosynthesis, metabolism, ...
- DOI:
- 10.1016/j.cbpb.2012.05.005
- https://doi.org/10.1016/j.cbpb.2012.05.005
- Author:
- Mary Cloud B. Ammons; Loren S. Ward; Scot Dowd; Garth A. James
- Source:
- International journal of antimicrobial agents 2011 v.37 no.4 pp. 316-323
- ISSN:
- 0924-8579
- Subject:
- Pseudomonas aeruginosa; anti-infective agents; anti-infective properties; bacteria; biofilm; biosynthesis; cell membranes; chelation; gene expression; gene expression regulation; lactoferrin; microarray technology; models; operon; pathogens; pressure ulcers; siderophores; xylitol
- Abstract:
- ... With an ageing and ever more obese population, chronic wounds such as diabetic ulcers, pressure ulcers and venous leg ulcers are an increasingly relevant medical concern. Identification of bacterial biofilm contamination as a major contributor to non-healing wounds demands biofilm-targeted strategies to manage chronic wounds. Pseudomonas aeruginosa has been identified as a principal biofilm-formin ...
- DOI:
- 10.1016/j.ijantimicag.2010.12.019
- PubMed:
- 21377840
- PubMed Central:
- PMC7008007
- https://doi.org/10.1016/j.ijantimicag.2010.12.019
- Author:
- Chika C. Nwugo; Jennifer A. Gaddy; Daniel L. Zimbler; Luis A. Actis
- Source:
- Journal of proteomics 2011 v.74 no.1 pp. 44-58
- ISSN:
- 1874-3919
- Subject:
- Acinetobacter baumannii; RNA; bacteria; biosynthesis; chelation; correlation; cultured cells; energy; gels; gene expression regulation; mass spectrometry; protein synthesis; proteomics; receptors; siderophores
- Abstract:
- ... Iron is an essential nutrient that plays a role in bacterial differential gene expression and protein production. Accordingly, the comparative analysis of total lysate and outer membrane fractions isolated from A. baumannii ATCC 19606ᵀ cells cultured under iron-rich and -chelated conditions using 2-D gel electrophoresis-mass spectrometry resulted in the identification of 58 protein spots different ...
- DOI:
- 10.1016/j.jprot.2010.07.010
- PubMed:
- 20692388
- PubMed Central:
- PMC2997898
- https://doi.org/10.1016/j.jprot.2010.07.010
- Author:
- Romão, Célia V.; Ladakis, Dimitrios; Lobo, Susana A.L.; Carrondo, Maria A.; Brindley, Amanda A.; Deery, Evelyne; Matias, Pedro M.; Pickersgill, Richard W.; Saraiva, Lígia M.; Warren, Martin J.
- Source:
- Proceedings of the National Academy of Sciences of the United States of America 2011 v.108 no.1 pp. 97-102
- ISSN:
- 0027-8424
- Subject:
- Archaeoglobus; Desulfovibrio vulgaris; Salmonella enterica; active sites; biosynthesis; chelation; cobalt; crystal structure; enzymes; evolution; heme; iron; oligomerization; protein subunits; protoporphyrin; vitamin B12
- Abstract:
- ... The class II chelatases associated with heme, siroheme, and cobalamin biosynthesis are structurally related enzymes that insert a specific metal ion (Fe²⁺ or Co²⁺) into the center of a modified tetrapyrrole (protoporphyrin or sirohydrochlorin). The structures of two related class II enzymes, CbiXS from Archaeoglobus fulgidus and CbiK from Salmonella enterica, that are responsible for the insertion ...
- DOI:
- 10.1073/pnas.1014298108
- PubMed:
- 21173279
- PubMed Central:
- PMC3017170
- https://doi.org/10.1073/pnas.1014298108
- Author:
- Zhuang, Yongliang; Sun, Liping; Zhao, Xue; Wang, Jingfeng; Hou, Hu; Li, Bafang
- Source:
- Journal of the science of food and agriculture 2009 v.89 no.10 pp. 1722-1727
- ISSN:
- 0022-5142
- Subject:
- reaction inhibition; biosynthesis; cosmetics; copper; melanoma; proteinases; proteolysis; seafoods; collagen; peptides; free radical scavengers; Scyphozoa; enzymatic hydrolysis; melanin; cell lines; antioxidant activity; chelation
- Abstract:
- ... BACKGROUND: Jellyfish collagen was hydrolysed with trypsin and properase E, and jellyfish collagen peptide (JCP) was purified from the enzymatic hydrolysate using ion exchange chromatography and gel filtration. The antioxidant activity of JCP in a linoleic acid emulsion system, its superoxide anion- and hydroxyl radical-scavenging activities and its copper-chelating ability were evaluated in vitro ...
- DOI:
- 10.1002/jsfa.3645
- https://doi.org/10.1002/jsfa.3645
- Author:
- Macomber, Lee; Imlay, James A.
- Source:
- Proceedings of the National Academy of Sciences of the United States of America 2009 v.106 no.20 pp. 8344-8349
- ISSN:
- 0027-8424
- Subject:
- Escherichia coli; amino acids; biosynthesis; chelation; copper; enzymes; glutathione; humans; mutants; oxygen; pathogenesis; proteins; reactive oxygen species; sulfur; toxicity
- Abstract:
- ... Excess copper is poisonous to all forms of life, and copper overloading is responsible for several human pathologic processes. The primary mechanisms of toxicity are unknown. In this study, mutants of Escherichia coli that lack copper homeostatic systems (copA cueO cus) were used to identify intracellular targets and to test the hypothesis that toxicity involves the action of reactive oxygen speci ...
- DOI:
- 10.1073/pnas.0812808106
- PubMed:
- 19416816
- PubMed Central:
- PMC2688863
- https://doi.org/10.1073/pnas.0812808106
43. In vitro antioxidant activities of water-soluble polysaccharides extracted from Isaria farinosa B05
- Author:
- Jiang, Y.H.; Jiang, X.L.; Wang, P.; Hu, X.K.
- Source:
- Journal of food biochemistry 2005 v.29 no.3 pp. 323-335
- ISSN:
- 0145-8884
- Subject:
- fermentation; redox potential; biosynthesis; free radicals; hydrogen peroxide; lipid peroxidation; Isaria farinosa; polysaccharides; antioxidant activity; chelation; mycelium; culture filtrates; fungi
- Abstract:
- ... The water-soluble exo-polysaccharides (WSEPS) and intrapolysaccharides (WSIPS) were prepared from the fermentation broth and mycelia of Isaria farinosa B05, respectively, and their antioxidant activities in vitro were studied by various antioxidant assays, including hydroxyl radical scavenging, superoxide radical scavenging, hydrogen peroxide (H2O2) scavenging, metal chelating activities, reducing ...
- DOI:
- 10.1111/j.1745-4514.2005.00040.x
- https://doi.org/10.1111/j.1745-4514.2005.00040.x
- Author:
- Bauer, Petra; Bereczky, Zsolt
- Source:
- Agronomy for sustainable development 2003 v.23 no.5-6 pp. 447-454
- ISSN:
- 0249-5627
- Subject:
- biosynthesis; chelation; crops; grasses; human health; iron; nicotianamine; nicotianamine synthase; nutrient deficiencies; phytosiderophores; regulator genes; tomatoes; transcription (genetics)
- Abstract:
- ... Iron uptake is strictly controlled in all organisms. Iron deficiency induces a well-defined series of physiological events, either based on iron reduction (strategy I, dicots and monots except grasses) or iron chelation (strategy II, grasses). Genes encoding the structural components of the strategies I and II have been described recently using molecular, genetic and biochemical techniques. The ma ...
- DOI:
- 10.1051/agro:2003012
- https://doi.org/10.1051/agro:2003012
- Author:
- Tesfaye, M.; Temple, S.J.; Allan, D.L.; Vance, C.P.; Samac, D.A.
- Source:
- Plant physiology 2001 v.127 no.4 pp. 1836-1844
- ISSN:
- 0032-0889
- Subject:
- Medicago sativa; malate dehydrogenase; gene expression; transgenic plants; organic acids and salts; biosynthesis; aluminum; soil pH; nutrient solutions; chelation; phytotoxicity; phosphoenolpyruvate carboxylase; complementary DNA; enzyme activity; root tips; root exudates; promoter regions
- Abstract:
- ... Al toxicity is a severe impediment to production of many crops in acid soil. Toxicity can be reduced through lime application to raise soil pH, however this amendment does not remedy subsoil acidity, and liming may not always be practical or cost-effective. Addition of organic acids to plant nutrient solutions alleviates phytotoxic Al effects, presumably by chelating Al and rendering it less toxic ...
- DOI:
- 10.1104/pp.010376
- PubMed:
- 11743127
- PubMed Central:
- PMC133587
- https://doi.org/10.1104/pp.010376
- Author:
- Papenbrock, J.; Pfundel, E.; Mock, H.P.; Grimm, B.
- Source:
- plant journal 2000 v.22 no.2 pp. 155-164
- ISSN:
- 0960-7412
- Subject:
- biosynthesis; complementary DNA; antisense DNA; transgenic plants; iron; magnesium; gene expression; biochemical pathways; photosystem II; Nicotiana tabacum; photosystem I; chlorophyll; promoter regions; chelation
- Abstract:
- ... The chelation of Fe2 and Mg2+ ions forms protoheme IX and Mg-protoporphyrin IX, respectively, and the latter is an intermediate in chlorophyll synthesis. Active magnesium protoporphyrin IX chelatase (Mg-chelatase) is an enzyme complex consisting of three different subunits. To investigate the function of the CHL I subunit of Mg-chelatase and the effects of modified Mg-chelatase activity on the tet ...
- DOI:
- 10.1046/j.1365-313x.2000.00724.x
- PubMed:
- 10792831
- https://doi.org/10.1046/j.1365-313x.2000.00724.x