scholarly journals Cold Plasma as a Potential Activator of Plant Biostimulants

2022 ◽  
Vol 14 (1) ◽  
pp. 495
Author(s):  
Sławomir Kocira ◽  
María Cecilia Pérez-Pizá ◽  
Andrea Bohata ◽  
Petr Bartos ◽  
Agnieszka Szparaga
Keyword(s):  
Cold Plasma ◽  
Crop Growth ◽  
Biologically Active ◽  
Plant Production ◽  
Environmental Damage ◽  
Conventional Agriculture ◽  
Innovative Technologies ◽  
Natural Substances ◽  
Huge Impact ◽  
Intensive Search

Agriculture has become a sector with a huge impact on the natural environment. The interest of agriculture in the category of innovative bio-stimulants is due to the intensive search for preparations based on natural substances. This is not possible without developing and implementing innovative technologies, e.g., cold plasma, along with innovative technologies supporting farmers. Therefore, given the need to prevent environmental damage caused by intensive agriculture, plant production and protection must be targeted at merging the stimulation of crop growth and the elimination of threats to humans and the environment. The analysis of how cold plasma can influence the production of organic bio-stimulants seems to be an unavoidable step in future approaches to this topic. Since allelopathic plants represent a source of many chemical compounds promoting crop growth and development, the coupling of biologically-active compound extraction with plasma activation of allelopathic extracts has interesting potential in offering the most modern alternative to conventional agriculture. However, its implementation in practice will only be feasible after a comprehensive and thoughtful investigation of the mechanisms behind crops’ response to such bio-stimulants.

scholarly journals A New Hybrid δ-Lactone Induces Apoptosis and Potentiates Anticancer Activity of Taxol in HL-60 Human Leukemia Cells

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1479 ◽  
Author(s):  
Katarzyna Gach-Janczak ◽  
Joanna Drogosz-Stachowicz ◽  
Angelika Długosz-Pokorska ◽  
Rafał Jakubowski ◽  
Tomasz Janecki ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Anticancer Agents ◽  
Biologically Active ◽  
Human Leukemia ◽  
Apoptosis Induction ◽  
Hybrid Compound ◽  
Drug Candidates ◽  
Natural Substances ◽  
High Cytotoxic Activity ◽  
Induced Apoptosis

In the search for new drug candidates, researchers turn to natural substances isolated from plants which may be either used directly or may serve as a source for chemical modifications. An interesting strategy in the design of novel anticancer agents is based on the conjugation of two or more biologically active structural motifs into one hybrid compound. In this study, we investigated the anticancer potential of 4-benzyl-5,7-dimethoxy-4-methyl-3-methylidene-3,4-dihydro-2H-chroman-2-one (DL-247), a new hybrid molecule combining a chroman-2-one skeleton with an exo-methylidene bond conjugated with a carbonyl group, in human myeloid leukemia HL-60 cell line. The cytotoxicity of the new compound was tested using MTT assay. The effect of DL-247 on cell proliferation and apoptosis induction were studied by flow cytometry, fluorometric assay and ELISA analysis. DL-247 displayed high cytotoxic activity (IC50 = 1.15 µM, after 24 h incubation), significantly inhibited cell proliferation and induced apoptosis by both, the intrinsic and extrinsic pathways. A combination of DL-247 with taxol exhibited a strong synergistic effect on DNA damage generation, apoptosis induction and inhibition of cell growth.

scholarly journals Machinery guidance systems analysis concerning pass-to-pass accuracy as a tool for efficient plant production in fields and for soil damage reduction

2014 ◽  
Vol 60 (No. 1) ◽  
pp. 36-42 ◽  
Author(s):  
Z. Kvíz ◽  
M. Kroulik ◽  
J. Chyba
Keyword(s):  
Conventional Tillage ◽  
Guidance System ◽  
Plant Production ◽  
Soil Conditions ◽  
Environmental Damage ◽  
System Utilization ◽  
Cropping Season ◽  
Significant Difference ◽  
Guidance Systems ◽  
Field Area

Machines without satellite navigation in fields have a tendency to pass-to-pass errors, especially unwanted overlaps, resulting in waste of fuel and pesticides, longer working times and also environmental damage. This paper evaluates the accuracy of individual machinery passes in fields. Real pass-to-pass errors (omissions and overlaps) in a field were measured on different tractor-implement units with and without guidance system utilization and a comparison between observed guidance arrangements was made regarding final working accuracy and possible benefits from navigation utilization. Additionally, intensity of machinery passes, and repeated passes on soil, as a possible risk for soil compaction in fields, were monitored. The outcomes from our measurements revealed a statistically significant difference between the total area treated by machinery without any guidance system and machinery using precise guidance systems. Concerning the intensity of traffic in fields, it was found out that more than 86% of the total field area was run-over at least once during one cropping season when using conventional tillage practice. The usage of guidance systems can reduce machinery traffic in field to some extent as well and thus improve soil conditions.

scholarly journals Innovative Technologies for District Heating and Cooling: InDeal Project

Proceedings ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 1 ◽  
Author(s):  
Serafeim Moustakidis ◽  
Ioannis Meintanis ◽  
Nicos Karkanias ◽  
George Halikias ◽  
Elise Saoutieff ◽  
...  
Keyword(s):  
Energy Demand ◽  
Social Impact ◽  
New Technologies ◽  
District Heating ◽  
Interdisciplinary Approach ◽  
Production Costs ◽  
Plant Production ◽  
Insulation Material ◽  
Innovative Technologies ◽  
Heating And Cooling

The paper discusses the outcomes of the conference organized by the InDeal project. The conference took place on 12 December 2018 in Montpellier as part of the EnerGaia energy forum 2018. A holistic interdisciplinary approach for district heating and cooling (DHC) networks is presented that integrates heterogeneous innovative technologies from various scientific sectors. The solution is based on a multi-layer control and modelling framework that has been designed to minimize the total plant production costs and optimize heating/cooling distribution. Artificial intelligence tools are employed to model uncertainties associated with weather and energy demand forecasts, as well as quantify the energy storage capacity. Smart metering devices are utilized to collect information about all the crucial heat substations’ parameters, whereas a web-based platform offers a unique user environment for network operators. Three new technologies have been further developed to improve the efficiency of pipe design of DHC systems: (i) A new sustainable insulation material for reducing heat losses, (ii) a new quick-fit joint for an easy installation, and (iii) a new coating for reducing pressure head losses. The results of a study on the development and optimization of two energy harvesting systems are also provided. The assessment of the environmental, economic and social impact of the proposed holistic approach is performed through a life cycle analysis. The validation methodology of the integrated solution is also described, whereas conclusions and future work are finally given.

scholarly journals Microalgal Biostimulants and Biofertilisers in Crop Productions

Agronomy ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 192 ◽  
Author(s):  
Domenico Ronga ◽  
Elisa Biazzi ◽  
Katia Parati ◽  
Domenico Carminati ◽  
Elio Carminati ◽  
...  
Keyword(s):  
Plant Growth ◽  
Abiotic Stresses ◽  
Crop Production ◽  
Crop Yields ◽  
Foliar Application ◽  
Crop Protection ◽  
Seed Priming ◽  
Biologically Active ◽  
Agricultural Sustainability ◽  
Natural Substances

Microalgae are attracting the interest of agrochemical industries and farmers, due to their biostimulant and biofertiliser properties. Microalgal biostimulants (MBS) and biofertilisers (MBF) might be used in crop production to increase agricultural sustainability. Biostimulants are products derived from organic material that, applied in small quantities, are able to stimulate the growth and development of several crops under both optimal and stressful conditions. Biofertilisers are products containing living microorganisms or natural substances that are able to improve chemical and biological soil properties, stimulating plant growth, and restoring soil fertility. This review is aimed at reporting developments in the processing of MBS and MBF, summarising the biologically-active compounds, and examining the researches supporting the use of MBS and MBF for managing productivity and abiotic stresses in crop productions. Microalgae are used in agriculture in different applications, such as amendment, foliar application, and seed priming. MBS and MBF might be applied as an alternative technique, or used in conjunction with synthetic fertilisers, crop protection products and plant growth regulators, generating multiple benefits, such as enhanced rooting, higher crop yields and quality and tolerance to drought and salt. Worldwide, MBS and MBF remain largely unexploited, such that this study highlights some of the current researches and future development priorities.

scholarly journals PHYTOTOXICITY OF STALE CYANIDATION WASTES OF POLYMETALLIC ORES IN AREAS OF ACCUMULATED ENVIRONMENTAL DAMAGE

2020 ◽  
pp. 33-40
Author(s):  
V. S. Artamonova ◽  
◽  
S. B. Bortnikova ◽  
A. A. Opleuchin ◽  
◽  
...  
Keyword(s):  
Fatal Outcome ◽  
Growth Strategy ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Total Weight ◽  
Environmental Damage ◽  
Soil Environment ◽  
The Future ◽  
Earth's Crust ◽  
Active Substances

The results of studies of phytotoxicity of stale cyanidation wastes of gold-containing ores and adjacent soils on the territory of accumulated environmental damage are presented. It is established that they are viable for oats sown only in the upper part of the old dump, but the morphometric indicators of roots and sprouts show the effect of inhibition; mustard detects a fatal outcome in all samples. The soil environment showed inhibition of roots, espe-cially mustard, but the sprouts were higher in mustard. The total weight of oat sprouts and roots exceeded that of mustard by 2-3 times. It is shown that stale dumps are life-sustaining, they contain life-sustaining toxobacteria that differ from soil inhabitants. The growth strategy of the bacterium is aimed at rapid reproduction of cells, but in the future they quickly lose their mobility and ability to reproduce. This limits their participation in the replenishment of the habitat with biogenic nitrogen and biologically active substances. In the studied waste and soils, a similar set of toxicants was present in an amount exceeding their Clarks in the earth's crust. To reduce phytotoxicity during the planning of dumps and chemical reclamation of the technogenic surface. This will increase the plant viability, sid-eration efficiency, accelerate the formation of biogenicity in the root layer, accelerate the blackening of the techno-genic surface, and reduce the migration of ecotoxicants.

scholarly journals SELECTION OF LEAF AND SPICY AROMATIC AGRICULTURAL CROPS: STATUS AND DIRECTIONS

2019 ◽  
pp. 7-14
Author(s):  
A. V. Soldatenko ◽  
V. F. Pivovarov ◽  
V. A. Kharchenko ◽  
M. I. Ivanova
Keyword(s):  
Selection Process ◽  
Import Substitution ◽  
Biologically Active ◽  
Plant Production ◽  
Human Organism ◽  
Agricultural Crops ◽  
Aromatic Plant ◽  
Current State ◽  
Enrich Food ◽  
Selection Of

The aim of the present work was evaluation of the current state and leading directions in selection of leaf and spicy-aromatic vegetables crops belonging to the Asteraceae, Apiaceae, Brassicaceae, Lamiaceae, Chenopodiaceae families. Analysis of leaf and spicy aromatic plant production revealed that at present time these crops become more and more popular. Being a source of essential to human organism vitamins, antioxidants and biologically active compounds they enrich food with marvelous taste and aroma. The main directions in the selection of these crops and presented database of leaf and spicy-aromatic crops genebank promote the selection process optimization. Modern varieties of leaf and spicy-aromatic crops of Federal Scientific Vegetable Center selection are considered to be competitive and promising for import substitution.

scholarly journals Phosphate-Solubilizing Rhizobacteria: Diversity, Mechanisms, and Prospects in Sustainable Agriculture

2020 ◽  
Author(s):  
Becky Nancy Aloo ◽  
Billy Amedi Makumba ◽  
Ernest Rahsid Mbega
Keyword(s):  
Plant Growth ◽  
Sustainable Agriculture ◽  
High Energy ◽  
Mechanisms Of Action ◽  
Plant Production ◽  
In Planta ◽  
Conventional Agriculture ◽  
Plant Growth Promoting Activities ◽  
Plant Growth Promoting

Phosphorus (P) is the second-most important element after nitrogen that is required for plant growth. Although this element is abundant in most soils, it is rarely available in plant-accessible forms since most of it normally exists in soil in insoluble forms such as phosphates. In conventional agriculture, P is normally supplied as chemical fertilizer to satisfy plant P requirements. This, to a large extent, boosts plant production. However, chemical fertilizers are costly, have a huge carbon footprint, and are environmentally-unsustainable owing to the high energy requirements during their synthesis. Besides, P-containing agricultural run-offs contribute hugely to the eutrophication of water bodies and environmental degradation. Moreover, plants can consume only a small amount of chemically-supplied P since between 75 and 90% of this form of P normally get precipitated into complexes and rapidly become fixed in soil. These issues and concerns necessitate research into alternative and viable ways of supplying P to plants. Rhizobacteria have for decades been investigated in vivo and in planta as suitable tools in sustainable agriculture due to the plant-growth-promoting activities such as nutrients’ solubilization, nitrogen fixation, and production of phytohormones. Although a lot of research has been done on different nutrients-solubilizing rhizobacteria and their potential in sustainable agriculture, their mechanisms of action and prospects in sustainable agriculture remain to be fully understood. This review particularly focuses on the P solubilizing rhizobacteria and evaluates their diversity, mechanisms of action, and prospects in sustainable agriculture based on the present and future scenario of their application. Such information is useful in determining their potential and evaluating their prospects in promoting sustainable agricultural systems.

Pharmacological Studies on Substances of Plant Origin with Coronary Dilatating and Antiarrhythmic Action

1978 ◽  
Vol 06 (02) ◽  
pp. 123-130 ◽  
Author(s):  
V. PETKOV ◽  
P. MANOLOV
Keyword(s):  
Coronary Flow ◽  
Coronary Spasm ◽  
Rabbit Heart ◽  
Biologically Active ◽  
Antiarrhythmic Action ◽  
Oxygen Utilization ◽  
Coronary Insufficiency ◽  
Clear Cut ◽  
Natural Substances ◽  
Pharmacological Studies

Studies were made of the action of biologically active substances isolated from medicinal plants on the coronary circulation under normal conditions and under conditions of induced coronary insufficiency, as well as on models of rhythmic disturbances provoked by different methods. The substances tested were: iridoid Oleuropein isolated from the olive leaves (Olea europaea); valepotriatic fraction V pt2 isolated for the valerian roots (Valeriana officinalis), all the flavonoids named crataemon and the hyperoside isolated from it, obtained from the flowers and leaves of hawthorn (Crataegus monogina); and all the furocoumarines named peucordin isolated from Peucedanum officinale. The results of these studies suggest that oleuropein, the valepotratic fraction, carataemon, hyperoside, and peucordin produce a clear-cut coronary dilatory action. The coronary flow of a rabbit heart isolated after the method of Langendorf was found to increase by more than 160% by crataemon (2×10-5), hyperoside (1×10-5) and peucordin (2×10-5) and more than 50% by oleuropein and the valepotriatic fraction. This effect of cratemon, hyperoside, and peucordin showed them to be superior to prenylamine. The coronary dilatory effect was also evaluated in experiments on whole organism (cats). It was found that in a dose of 10 mg/kg, peucordin increased the coronary flow by 82% hyperoside by 47%; crataemon, by 37% and the valepotriatic fraction, by 30%. The natural substances tested also eliminated induced pituitrin coronary spasm (experiments on unanaesthetized rabbits). Some of these substances showed a marked antiarrhythmic action, too. Oleuropein was active against BaCl2-induced arrhythmia (in rabbits) and against calcium-induced arrhythmia (in rats); it weakened the aconitine-induced arrhythmia. Crataemon also exerted a clear-cut effect on some kinds of induced arrhythmia. Crataemon and peucordin decrease oxygen utilization in the myocardium.

scholarly journals Comparison of the Health Cost of Organic and Conventional Vegetable Cultivation in Getasan Sub-district, Semarang, Indonesia

2021 ◽  
Vol 24 (1) ◽  
pp. 36-44
Author(s):  
Supriyono Asfawi ◽  
◽  
Ari Probandari ◽  
Prabang Setyono ◽  
Hartono
Keyword(s):  
Occupational Health ◽  
Organic Agriculture ◽  
Health Impacts ◽  
Health Costs ◽  
Environmental Damage ◽  
Conventional Agriculture ◽  
Farmer Groups ◽  
Potential Losses ◽  
Economic Motives ◽  
Vegetable Cultivation

Environmental damage will disrupt the ecosystem to support life. Unsustainable agriculture can be a source of environmental degradation. Conventional agriculture may have an effect on the environment, thus the participation of various parties in sustainable agriculture is needed. Organic agriculture is developed as an environmentally friendly agricultural cultivation with many benefits. Compared to the attention on occupational health, safety and environmental problems, economic motives receive less attention. This study aims to calculate the costs arising from the health impacts of vegetable cultivation. There were 314 respondents interviewed in this study. There were significant differences in the sickness complaints felt by respondents; organic farmer groups have the potential to incur health costs of Rp. 30,333.33, while the conventional group is higher, with a cost of Rp. 103.303.57 (US$ 7.38). Organic farming has a better impact because it uses natural ingredients and is not bad for health. The potential losses arising from health cases also show a high and significant number (p <0.001).

Sign in / Sign up

Export Citation Format

Share Document