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Author(s):  
José R. I. Silva ◽  
Eduardo Souza ◽  
Maurício L. de M. V. Leite ◽  
Genival Barros Junior ◽  
Aldo T. Sales ◽  
...  

ABSTRACT Graywater is an alternative method to increase the water supply for agricultural production in semi-arid regions. The objective of this study was to evaluate the effects of different irrigation depths of graywater on the gas exchanges and phytomass of millet plants with and without organic fertilization. The research was conducted under greenhouse conditions in Serra Talhada municipality in semiarid region of Brazil, in a randomized complete block design with a factorial (4 × 2 + 1) plot and three replicates. The first factor corresponded to graywater irrigation depth equivalent to 25, 50, 75 and 100% of the available water content of the soil, and the second factor was the addition of bovine manure as fertilizer (0 and 34 Mg ha-1), and a control (irrigation with low-salinity water). Irrigation with graywater effluent did not promote adverse effects on gas exchanges and phytomass accumulation; however, it also did not provide enough nutrients to promote increase in these variables. The reduction in irrigation depth caused a decrease in gas exchange from 45 days after the application of the treatments. The basal tiller mass was the most favored plant component due to organic fertilization.


2021 ◽  
Vol 5 ◽  
Author(s):  
Liliane Boukhdoud ◽  
Carole Saliba ◽  
Lillian D. Parker ◽  
Nancy Rotzel McInerney ◽  
Rhea Kahale ◽  
...  

Longevity of species populations depends largely on interactions among animals and plants in an ecosystem. Predation and seed dispersal are among the most important interactions necessary for species conservation and persistence, and diet analysis is a prerequisite tool to evaluate these interactions. Understanding these processes is crucial for identifying conservation targets and for executing efficient reforestation and ecological restoration. In this study, we applied a scat DNA metabarcoding technique using the P6-loop of the trnL (UAA) chloroplastic marker to describe the seasonal plant diet composition of 15 mammal species from a highly biodiverse Lebanese forest in the Eastern Mediterranean. We also recovered plant seeds, when present, from the scats for identification. The mammal species belong to 10 families from 5 different orders. More than 133 plant species from 54 plant families were detected and identified. Species from the Rosaceae, Poaceae, Apiaceae, Fabaceae, Fagaceae and Berberidaceae families were consumed by the majority of the mammals and should be taken into consideration in future reforestation and conservation projects. Our results showed that the DNA metabarcoding approach provides a promising method for tracking the dietary plant components of a wide diversity of mammals, yielding key insights into plant-animal interactions inside Lebanon’s forests.


2021 ◽  
Vol 17 (5) ◽  
pp. 15-21
Author(s):  
N. S. Bezverkhaya ◽  
O. A. Ogneva

At present the issues related to the prevention of diseases of the 20th century that arise with the development of human society and include external (infection, climate change, ecology) and internal (stressful situations, weakening of immunity, metabolic problems) reasons caused by the modern lifestyle are the topical issues of the world community. A characteristic feature of a modern person’s life is a constant lack of free time, inadequate sleep, a sedentary lifestyle and, most importantly, an unbalanced diet. Taking into account regular stress factors, there is an increased physiological need of the human body for micro- and macronutrients that come with food. The lack of these elements, along with increasing mental and physical stress, leads to poor health and occurrence of diseases. Butter is traditional food in an average person’s diet. Butter is a highly nutritious food product where milk fat is concentrated. Milk fat contains many valuable ingredients such as water, phospholipids, lactose and complete proteins. The development of butter enriched with vegetable fillers is a topical research area. Lemon balm (Melissa officinalis L.) has great prospects as a plant component. The aim of the research is to develop fortified butter. To achieve this goal, the following tasks have been formulated: to assess the effect of Melissa officinalis L. herbal additive on the organoleptic characteristics of the enriched butter; to conduct an experimental assessment of the quality characteristics of experimental samples of butter with Melissa officinalis L. as a fortified product; to determine changes in the quality characteristics of Melissa officinalis L. enriched butter during storage; to develop a recipe for enriched butter with Melissa officinalis L. herbal additive.


PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0259937
Author(s):  
Matthew J. Peterson ◽  
Pubudu P. Handakumbura ◽  
Allison M. Thompson ◽  
Zachary R. Russell ◽  
Young-Mo Kim ◽  
...  

The microbial and molecular characterization of the ectorhizosphere is an important step towards developing a more complete understanding of how the cultivation of biofuel crops can be undertaken in nutrient poor environments. The ectorhizosphere of Setaria is of particular interest because the plant component of this plant-microbe system is an important agricultural grain crop and a model for biofuel grasses. Importantly, Setaria lends itself to high throughput molecular studies. As such, we have identified important intra- and interspecific microbial and molecular differences in the ectorhizospheres of three geographically distant Setaria italica accessions and their wild ancestor S. viridis. All were grown in a nutrient-poor soil with and without nutrient addition. To assess the contrasting impact of nutrient deficiency observed for two S. italica accessions, we quantitatively evaluated differences in soil organic matter, microbial community, and metabolite profiles. Together, these measurements suggest that rhizosphere priming differs with Setaria accession, which comes from alterations in microbial community abundances, specifically Actinobacteria and Proteobacteria populations. When globally comparing the metabolomic response of Setaria to nutrient addition, plants produced distinctly different metabolic profiles in the leaves and roots. With nutrient addition, increases of nitrogen containing metabolites were significantly higher in plant leaves and roots along with significant increases in tyrosine derived alkaloids, serotonin, and synephrine. Glycerol was also found to be significantly increased in the leaves as well as the ectorhizosphere. These differences provide insight into how C4 grasses adapt to changing nutrient availability in soils or with contrasting fertilization schemas. Gained knowledge could then be utilized in plant enhancement and bioengineering efforts to produce plants with superior traits when grown in nutrient poor soils.


2021 ◽  
Vol 12 (6) ◽  
pp. 8081-8093

Toxicity studies' quality control of drug plant-based products is an important aspect of pharmacological research. The purpose of this literature review is to extract about toxicity test on Centella asiatica. The plant component utilized, the test animals used, the type of toxicity test, evaluation, the findings, and conclusions of each test are all included in this review—the database used in PubMed. Most of the literature results obtained from this review indicate high safety in C. asiatica plants. The acute toxicity test is that the most frequently used toxicity test. The use varies from plant parts to whole plants, with minimal side effects reported and high in safety, so it can be concluded that C. asiatica is very prospective to be developed as a medicine.


Author(s):  
Yuriі Kyselov ◽  
Vladyslav Parakhnenko

Development of transport capable to overcome distances of the planetary level, was caused to more intensive, than early, expansion allied, especially invasive, species of plants that become concurrent for aboriginal flora. Phytoinvasions are one of the most important geoecological problems of our time, as they disrupt the species composition and structure of natural phytocenoses, ultimately leading to the impoverishment of the plant component of landscapes and the reduction of biodiversity. One of leading factors in the spread of adventitious and, in particular, invasive species is rail transport, as a result of which seeds and organs of plants capable of taking root and gradually displacing the aboriginal flora get in the way. Although among the invasive flora of Kirovohrad region there are representatives of different systematic groups and life forms of plants, still clearly dominated by angiosperms and - at the same time - herbaceous plants. Main peculiarities of the space differentiation are described by the examples of railway stations of Holovanivsk and Znamianka situated consequently in the West and the East of the Kirovohrad region. The most common representative of the invasive flora of the railways of the studied region is ragweed, also widespread grindelia spread (in the west of the Kirovograd region) and sweet silique (in the east of the region). Of the families of flowering plants, the most widely represented are Aster (Compositae), a significant place is occupied by Cabbage (Cruciferous), Thin-legged (Cereals), Legumes and others. Factors contributing to the naturalization of invasive species and their rapid displacement of aboriginal flora are various. The main ones are eurybiont, unpretentious to the conditions of the habitat, the significant size of the aboveground phytomass. The internal diversity in the invasive flora of the region's railways is mainly due to the influence of the factor of the sectoral nature of natural conditions within the territory rather elongated from west to east. Therefore, in the presence of clear common features characterizing the invasive flora of the region, the differences associated with predominance of moisture-loving plants in the western part of the region and drought-resistant plants in the eastern part are noticeable. The practical use of the study results is associated with the possibility of improving the system of measures to combat phytoinvasions, taking into account the geographical features of the spatial distribution of individual species. Results of the investigation may be used during realizing tasks of ecologization of land using, especially defining priorities in the struggle with invasive species of the plants of railways. Discovered internal differentiation in expansion different allied species in Kirovohrad region gives a ground for defining the most important factors of distortion natural biodiversity in its different parts. Studying space peculiarities of expansion allied flora has a significance for create concrete actions directed to renewing initial space composition of phytocenosis and landscapes distorted by invasions. Key words: invasive flora, railway tracks, Kirovohrad region, adventitia, ragweed, grindelia spread, itching eastern.


Forests ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1693
Author(s):  
Jonathan Jürgensen ◽  
Jan Muhr ◽  
Alexander Knohl

The oxidative ratio (OR) of organic material integrates the ratio of CO2 sequestered in biomass vs. O2 produced over longer timescales, but the temporal and spatial variability within a single ecosystem has received very limited attention. Between October 2017 and October 2019, we repeatedly sampled leaves, twigs, bark, outer stem wood, understorey vegetation and litter in a temperate beech forest close to Leinefelde (Germany) for OR measurements across a seasonal and spatial gradient. Plant component OR ranged from 1.004 ± 0.010 for fine roots to 1.089 ± 0.002 for leaves. Inter- and intra-annual differences for leaf and twig OR exist, but we found no correlation with sampling height within the canopy. Leaf OR had the highest temporal variability (minimum 1.069 ± 0.007, maximum 1.098 ± 0.002). This was expected, since leaf biomass of deciduous trees only represents the signal of the current growing season, while twig, stem and litter layer OR integrate multiple years. The sampling years 2018 and 2019 were unusually hot and dry, with low water availability in the summer, which could especially affect the August leaf OR. Total above-ground OR is dominated by the extremely stable stem OR and shows little variation (1.070 ± 0.02) throughout the two sampling years, even when facing extreme events.


2021 ◽  
Vol 11 (23) ◽  
pp. 11133
Author(s):  
Rodolfo Lizcano-Toledo ◽  
Marino Pedro Reyes-Martín ◽  
Luisella Celi ◽  
Emilia Fernández-Ondoño

This work performs a review of the relevant aspects of agronomic dynamics of phosphorus (P) in the soil–plant relationship as a community (crop ecophysiology), the effect of environmental conditions and global warming on the redistribution and translocation of P concentrations in some commercial crops, and the use of good agricultural practices with an aim to improve the efficiency of the element. The research focuses on Northern Europe, North-Eastern Asia, Oceania, North America, and the tropical area of Latin America. This review covers general research and specific works on P found in the literature, 70% of which date from the last 10 years, as well as some older studies that have been of great relevance as references and starting points for more recent investigations. The dynamics of P in a system implies taking into account genetic aspects of the plant, component of the soil–plant–fertilizer–environment relationship, and use of technologies at the molecular level. In addition, in a climate change scenario, the availability of this element can significantly change depending on whether it is labile or non-labile.


2021 ◽  
pp. 63-66
Author(s):  
Жанна Викторовна Новикова ◽  
София Михайловна Сергеева ◽  
Татьяна Андреевна Бохолдина ◽  
Дмитрий Сергеевич Лавринович

Статья обеспечивает научную основу для комплексного подхода к проблеме расширения ассортимента хлебобулочных изделий. Семена Salvia hispanica, применяемые в качестве растительного компонента, являются источником биологически активных веществ: растительного белка, клетчатки, омега-3 и омега-6 полиненасыщенных жирных кислот, магния, кальция, фосфора. С целью обоснования применения растительного сырья в технологии приготовления хлебобулочных изделий были проведены исследования влияния семян Salvia hispanica на органолептические и физико-химические показатели хлебобулочного изделия булочки сдобной (бриошь). Органолептическая оценка исследуемых образцов позволяет сделать вывод о выраженном влиянии вносимых ингредиентов на внешний вид, цвет корки и состояние мякиша, что, однако, не приводит к изменению вкуса и запаха выпеченных изделий. Для оценки влияния семян Salvia hispanica на качество изделий при хранении опытные образцы были заложены на хранение. Было определено, что при использовании семян Salvia hispanica в количестве 10 % от массы муки по истечении 24 ч в изделии менее заметно снижение таких показателей, как вкус, запах, эластичность и крошковатость мякиша. Анализ химического состава хлебобулочного изделия булочки сдобной (бриошь) позволил сделать вывод, что изделия, вырабатываемые с применением семян Salvia hispanica, обладают высокой пищевой ценностью. Так, содержание пищевых волокон в модельном образце в 2 раза превышает значения контрольного образца, а также покрывает 10 % нормы суточной потребности, содержание омега-3 и омега-6 полиненасыщенных жирных кислот удовлетворяет суточную норму на 87,9 % и 19,2 % соответственно. Применение в рецептуре булочки сдобной (бриошь) семян Salvia hispanica позволяет расширить ассортимент продуктов питания, обогащенных эссенциальными компонентами. The article provides a scientific basis for an integrated approach to the problem of expanding the range of bakery products. Salvia hispanica seeds, used as a plant component, are a source of biologically active substances: plant protein, fiber, Omega-3 and Omega-6 polyunsaturated fatty acids, magnesium, calcium, phosphorus. In order to substantiate the use of plant raw materials in the technology of preparing bakery products, studies were carried out on the effect of Salvia hispanica seeds on the organoleptic and physicochemical characteristics of the brioche bun (brioche). The organoleptic assessment of the samples under study allows us to conclude that there is a pronounced effect of the ingredients introduced on the appearance, color of the crust and the state of the crumb, but does not lead to a change in the taste and smell of baked products. To assess the effect of Salvia hispanica seeds on the quality of products during storage, prototypes were put into storage. It was found that when using Salvia hispanica seeds in an amount of 10 % by weight of the flour, after 24 hours in the product, the decrease in such indicators as taste, smell, elasticity and crumb crumbness is less noticeable. Analysis of the chemical composition of the brioche bun (brioche) made it possible to conclude that the products produced with the use of Salvia hispanica seeds have a high nutritional value. Thus, the content of dietary fiber in the model sample is 2 times higher than the values of the control sample, and also covers 10 % of the daily requirement, the content of omega-3 and omega-6 polyunsaturated fatty acids satisfies the daily requirement by 87.9 % and 19.2 %, respectively. The use of brioche (brioche) seeds of Salvia hispanica in the recipe makes it possible to expand the range of food products enriched with essential components.


2021 ◽  
Vol 845 (1) ◽  
pp. 012117
Author(s):  
A A Ryadinskaya ◽  
N B Ordina ◽  
I A Koschaev ◽  
K V Mezinova ◽  
S A Chuev ◽  
...  

Abstract The issue of providing the residents of the Russian Federation with food for a healthy diet is still currently relevant. The population lacks essential biological substances. The inclusion of various types of agricultural raw materials in food products enables to improve the quality indicators of finished products. The article presents the outcomes of research on the development of a technology for the manufacture of a multicomponent chilled dessert for proper nutrition using a locally produced plant component, namely pumpkin and apples, as the main raw material. As additional components the following ones are used: yogurt, honey, ginger syrup, stevia, blackberry, pine nuts, orange. The authors have developed three product formulations and for each of its samples the quality and quantitative characteristics assessment, the nutritional and energy value, the concentration of minerals and vitamins have been established. Based on the test results, the relevance of the production of a multicomponent chilled dessert based on pumpkin and apple processing products has been justified. The product is recommended for all population groups as a product for proper nutrition. A portion of the developed multicomponent chilled dessert with a volume of 110 to 125 g (depending on the recipe) contributes to the satisfaction of more than 15% of a person’s daily need for potassium, and with the addition of orange – for vitamin C.


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