Author
Vyacheslav S. Grinev
Other affiliations: Saratov State University
Bio: Vyacheslav S. Grinev is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Furan & Crystal structure. The author has an hindex of 7, co-authored 44 publications receiving 145 citations. Previous affiliations of Vyacheslav S. Grinev include Saratov State University.
Topics: Furan, Crystal structure, Hydrogen bond, Phenanthrene, Medicine
Papers
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TL;DR: The results indicate that the major peroxidases from root exudates of alfalfa and sorghum can have a role in the rhizosphere degradation of PAHs.
46 citations
TL;DR: It is found that in the presence of the synthetic mediator, the plant peroxidase could oxidize phenanthrene and its microbial metabolites, which indicates the possibility of active participation of plants in the rhizospheric degradation of polycyclic aromatic hydrocarbons and their microbial metabolites.
39 citations
TL;DR: Treatment of wheat seeds with EPS solution significantly increased the length of seedling roots and shoots and by using the Ostwald-de Waele model, the rheological characteristics of the EPS solution were ascertained.
31 citations
TL;DR: The chemical composition of a new bioactive extract from immortelle sandy (Helichrysum arenarium (L.) Moench) was investigated in this paper, which contained 73.48 mg of flavonoids relative to rutin or 17.94 mg relative to quercetin per 1 g of dry extract weight, which correspond to 20.99 and 5.13% respectively.
Abstract: The chemical composition of a new bioactive extract from immortelle sandy (Helichrysum arenarium (L.) Moench.) was investigated. Naringin, its soluble aggregate, prunin, quercetin, apigenin, naringenin, apigenin 5-O-glucoside, and isosalipurposide were found among the flavonoids. The tested immortelle sandy extract was shown to contain known dimers, trimers, or more complex aggregates. The compounds had similar spectral but substantially different chromatographic characteristics, which can be used for their identification based on the corresponding data on flavonoids glycosylated at different positions and/or carbohydrates of various complexities, which are also characterized by similar absorption spectra and different retention times. It was found by molecular absorption spectroscopy that the immortelle extract contained 73.48 mg of flavonoids relative to rutin or 17.94 mg relative to quercetin per 1 g of dry extract weight, which corresponded to 20.99 and 5.13%, respectively. The immortelle extract obtained by the method proposed displayed antitumor activity against the transplanted sarcoma 45 and had a beneficial effect on animals in general.
16 citations
TL;DR: In this article, the X-ray crystallographic method was used to determine the crystal structure and characteristic features of the molecular structure of 3-(2-(2-nitrophenyl)hydrazono)-5-phenyl-3H-furan-2-one.
Abstract: The X-ray crystallographic method is used to determine the crystal structure and characteristic features of the molecular structure of 3-(2-(2-nitrophenyl)hydrazono)-5-phenyl-3H-furan-2-one produced by the reaction of azo coupling of 2-nitrophenyldiazonium salt with 5-phenyl-3Н-furan-2-one.
11 citations
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28 Jul 2005
TL;DR: PfPMP1）与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作�ly.
Abstract: 抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1（PfPMP1）与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用，在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员，通过启动转录不同的var基因变异体为抗原变异提供了分子基础。
18,940 citations
01 Jan 2016
TL;DR: The genus Paenibacillus comprises bacterial species relevant to humans, animals, plants, and the environment as mentioned in this paper, which can promote crop growth directly via biological nitrogen fixation, phosphate solubilization, production of the phytohormone indole-3-acetic acid (IAA), and release of siderophores that enable iron acquisition.
Abstract: Isolated from a wide range of sources, the genus Paenibacillus comprises bacterial species relevant to humans, animals, plants, and the environment. Many Paenibacillus species can promote crop growth directly via biological nitrogen fixation, phosphate solubilization, production of the phytohormone indole-3-acetic acid (IAA), and release of siderophores that enable iron acquisition. They can also offer protection against insect herbivores and phytopathogens, including bacteria, fungi, nematodes, and viruses. This is accomplished by the production of a variety of antimicrobials and insecticides, and by triggering a hypersensitive defensive response of the plant, known as induced systemic resistance (ISR). Paenibacillus-derived antimicrobials also have applications in medicine, including polymyxins and fusaricidins, which are nonribosomal lipopeptides first isolated from strains of Paenibacillus polymyxa. Other useful molecules include exo-polysaccharides (EPS) and enzymes such as amylases, cellulases, hemicellulases, lipases, pectinases, oxygenases, dehydrogenases, lignin-modifying enzymes, and mutanases, which may have applications for detergents, food and feed, textiles, paper, biofuel, and healthcare. On the negative side, Paenibacillus larvae is the causative agent of American Foulbrood, a lethal disease of honeybees, while a variety of species are opportunistic infectors of humans, and others cause spoilage of pasteurized dairy products. This broad review summarizes the major positive and negative impacts of Paenibacillus: its realised and prospective contributions to agriculture, medicine, process manufacturing, and bioremediation, as well as its impacts due to pathogenicity and food spoilage. This review also includes detailed information in Additional files 1, 2, 3 for major known Paenibacillus species with their locations of isolation, genome sequencing projects, patents, and industrially significant compounds and enzymes. Paenibacillus will, over time, play increasingly important roles in sustainable agriculture and industrial biotechnology.
189 citations
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01 Jan 1998
TL;DR: In this paper, the n-butanol fraction of the water extract of the seeds of Phaseolus radiatus was extracted and two flavonoid C-glycosides were isolated and identified as iso-vitexin (1) and vitexins (2) by spectroscopic methods.
Abstract: 【From the n-butanol fraction of the water extract of the seeds of Phaseolus radiatus, two flavonoid C-glycosides were isolated and identified as iso-vitexin (1) and vitexin (2) by spectroscopic methods.】
130 citations
TL;DR: Recent literature on the main mechanisms and key factors in the rhizoremediation process with a particular focus on soils contaminated with total petroleum hydrocarbon (TPH) are reviewed and the potential of different soil amendments to accelerate the remediation efficiency based on biostimulation and bioaugmentation processes is discussed.
89 citations
Book•
10 Mar 2018
TL;DR: In this paper, the role of carotenoids and their role in plant stress responses was discussed, from biosynthesis to plant signaling mechanisms during stress. But the relevance of tocopherols was not emphasized.
Abstract: Plant superoxide dismutases: Function under abiotic stress conditions -- Studies of catalase in plants under abiotic stress -- Ascorbate peroxidase functions in higher plants: The control of the balance between oxidative damage and signaling -- Glutathione reductase: Safeguarding plant cells against oxidant damage -- Function of the various MDAR isoforms in higher plants -- Peroxiredoxins: Types, characteristics and functions in higher plants -- Redox protein thioredoxins: Function under salinity, drought and extreme temperature conditions -- Biosynthesis and regulation of ascorbic acid in plants -- Glutathione metabolism and its function in higher plants adapting to stress -- Revisiting carotenoids and their role in plant stress responses: From biosynthesis to plant signaling mechanisms during stress. Abiotic stress response in plants – the relevance of tocopherols -- Role of flavonoids in plant stress. Class III peroxidases: isoenzymes functions, localization and redox regulation.
68 citations