Humic substances and nature-like technologies     

Perminova  Irina V.  García-Mina  José-María  Knicker  Heike  Miano  Teodoro 《Journal of Soils and Sediments》2019,19(6):2663-2664

Journal of Soils and Sediments -  相似文献   

Influence of PAH contamination on soil ecological status     

Sushkova  Svetlana N.  Minkina  Tatiana  Deryabkina  Irina  Mandzhieva  Saglara  Zamulina  Inna  Bauer  Tatiana  Vasilyeva  Galina  Antonenko  Elena  Rajput  Vishnu 《Journal of Soils and Sediments》2018,18(6):2368-2378

Purpose

The purpose of this paper is to study the responses of soil biological parameters as indicator of ecological status on PAH-contaminated soil.

Materials and methods

Studies are conducted on the soils and natural grassy vegetation of monitoring plots subjected to Novocherkassk power station (NPS) emissions. Monitoring plots were established at different distances from the NPS (1.0–20.0 km).

Results and discussion

The level of polycyclic aromatic hydrocarbons (PAHs) around NPS is the highest at the monitoring plot located at distance 1.6 km to the northwest through the prevailing wind direction. Gradually, decrease of PAHs was observed while increasing the distance from the NPS through the prevailing wind direction. Calculation of correlations between PAH level and biological activity parameters of soils showed lack of dependence with total and every PAH content in all 12 studied monitoring plots. The most significant correlations were found between PAH content and enzyme activity in the monitoring plots situated through the prevailing wind direction from NPS.

Conclusions

The main pollution source in the studied area is NPS. It was found that contamination of soil by PAHs has a direct dependence on the activity of all biological communities in chernozems, as well as the activities of dehydrogenase and the phytotoxicity of soils. Inverse correlations have been revealed between the PAH contamination and abundance of soil bacteria.

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Colletotrichum coccodes in potato and tomato leaves in Russia     

Belov  Grigoriy L.  Belosokhov  Arseniy F.  Kutuzova  Irina A.  Statsyuk  Natalia V.  Chudinova  Elena M.  Alexandrova  Alina V.  Kokaeva  Lyudmila Y.  Elansky  Sergey N. 《植物病害和植物保护杂志》2018,125(3):311-317

Journal of Plant Diseases and Protection - Colletotrichum coccodes is a plant pathogenic fungus affecting different organs of potato, tomato, and some other plants. The leaf infection with C....  相似文献   

Unilateral twin pregnancy: A non-infectious factor required for the etiological diagnosis of abortion in dairy herds     

Fernando L PEZ-GATIUS  Irina GARCIA-ISPIERTO  Christian HANZEN 《The Journal of reproduction and development》2021,67(6):337

Twin pregnancies are classified into bilateral (one fetus in each uterine horn: 44%) and unilateral (both fetuses in the same uterine horn, right or left: 56%). The incidence of abortion during mid- to late gestation is approximately 1% in cows carrying bilateral twins and more than 40% in cows carrying unilateral twins. In this period, abortion seems most commonly associated with infectious agents. However, although this imbalanced abortion rate may imply that unilateral twin pregnancy is a non-infectious abortion factor, few available data can describe the cause of abortions in twin pregnancies. The current findings suggest that unilateral twin pregnancy is a non-infectious factor required for the etiological diagnosis of abortion in dairy herds.  相似文献   

Changes in the Molecular Characteristics of Bovine and Marine Collagen in the Presence of Proteolytic Enzymes as a Stage Used in Scaffold Formation     

Marfa N. Egorikhina  Ludmila L. Semenycheva  Victoria O. Chasova  Irina I. Bronnikova  Yulia P. Rubtsova  Evgeniy A. Zakharychev  Diana Ya. Aleynik 《Marine drugs》2021,19(9)

Biopolymers, in particular collagen and fibrinogen, are the leading materials for use in tissue engineering. When developing technology for scaffold formation, it is important to understand the properties of the source materials as well as the mechanisms that determine the formation of the scaffold structures. Both factors influence the properties of scaffolds to a great extent. Our present work aimed to identify the features of the molecular characteristics of collagens of different species origin and the changes they undergo during the enzymatic hydrolysis used for the process of scaffold formation. For this study, we used the methods of gel-penetrating chromatography, dynamic light scattering, reading IR spectra, and scanning electron microscopy. It was found that cod collagen (CC) and bovine collagen (BC) have different initial molecular weight parameters, and that, during hydrolysis, the majority of either type of protein is hydrolyzed by the proteolytic enzymes within the first minute. The differently sourced collagen samples were also hydrolyzed with the formation of two low molecular fractions: Mw ~ 10 kDa and ~20 kDa. In the case of CC, the microstructure of the final scaffolds contained denser, closely spaced fibrillar areas, while the BC-sourced scaffolds had narrow, short fibrils composed of unbound fibers of hydrolyzed collagen in their structure.  相似文献   

CRISPR-based genetic control strategies for insect pests          下载免费PDF全文

Ying YAN  Roswitha A. AUMANN  Irina H?CKER  Marc F. SCHETELIG 《农业科学学报》2023,22(3):651-668

Genetic control strategies such as the sterile insect technique have successfully fought insect pests worldwide. The CRISPR(clustered regularly interspaced short palindromic repeats) technology, together with high-quality genomic resources obtained in more and more species, greatly facilitates the development of novel genetic control insect strains that can be used in area-wide and species-specific pest control programs. Here, we review the research progress towards state-of-art CRISPR-based gen...  相似文献   

Development of Immediate Release Tablets Containing Calcium Lactate Synthetized from Black Sea Mussel Shells     

Magdalena Mititelu  Elena Moro&#x;an  Anca Cecilia Nicoar&#x;  Ana Andreea Sec&#x;reanu  Adina Magdalena Musuc  Irina Atkinson  Jeanina Pandele Cusu  George Mihai Niulescu  Emma Adriana Ozon  Iulian Sarbu  Teodora Dalila Balaci 《Marine drugs》2022,20(1)

Nowadays, the use of marine by-products as precursor materials has gained great interest in the extraction and production of chemical compounds with suitable properties and possible pharmaceutical applications. The present paper presents the development of a new immediate release tablet containing calcium lactate obtained from Black Sea mussel shells. Compared with other calcium salts, calcium lactate has good solubility and bioavailability. In the pharmaceutical preparations, calcium lactate was extensively utilized as a calcium source for preventing and treating calcium deficiencies. The physical and chemical characteristics of synthesized calcium lactate were evaluated using Fourier Transform Infrared Spectroscopy, X-ray diffraction analysis and thermal analysis. Further, the various pharmacotechnical properties of the calcium lactate obtained from mussel shells were determined in comparison with an industrial used direct compressible Calcium lactate DC (PURACAL^®). The obtained results suggest that mussel shell by-products are suitable for the development of chemical compounds with potential applications in the pharmaceutical domain.  相似文献   

Indicator development in sustainability impact assessment: balancing theory and practice     

Helga Pülzl  Irina Prokofieva  Staffan Berg  Ewald Rametsteiner  Filip Aggestam  Bernhard Wolfslehner 《European Journal of Forest Research》2012,131(1):35-46

In this article, the development and operationalisation of forestry-wood chain indicators within the frame of sustainability impact assessment are discussed. The analytical framework follows a distinction between indicator definition and selection in a first phase, and a second operational phase of indicator application in terms of interconnecting material flows, calculation of chain performance and utilisation within evaluation components. A clear boundary drawing effort in terms of the development of indicator definitions, related subclasses, and measurement units as well as the creation of conversion factors between indicator values and individual chain stages supports this. Economic, social and environmental indicators have to respond to data collection needs on individual process levels (that correspond to sub-divisions of the forestry-wood chain). For the usage of indicators within evaluation tools, a functional hierarchy has to be provided that supports clear preference elicitation as well as information on related externalities. In total, this paper aims at demonstrating an enhanced spectrum in the use of sustainability indicators, and the challenges that arise from a developing and applying multi-functional indicators in sustainability impact assessment.  相似文献   

Post-spawning feed deprivation effects on testicular and ovarian maturation in the neotropical cichlid fish Cichlasoma dimerus     

Pérez-Sirkin  Daniela Irina  Di Yorio  María Paula  Delgadin  Tomás Horacio  Honji  Renato Massaaki  Moreira  Renata Guimarães  Somoza  Gustavo Manuel  Vissio  Paula Gabriela 《Fish physiology and biochemistry》2021,47(5):1527-1540

Fish Physiology and Biochemistry - Many teleost fishes can withstand long feed deprivation periods, either due to an eventual lack of food or because of their behavior during reproduction and/or...  相似文献   

Report of a collecting mission to the Georgian SSR 1983 for the study of indigenous material of cultivated plants     

Rusudan K. Beridze  Reinhard Fritsch  Klaus Pistrick  Irina M. Sakvarelidze 《Genetic Resources and Crop Evolution》1984,32(2):217-227

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