Correction to: The role of plants in the formation of the topsoil chemical composition in different climatic conditions of steppe landscape

Abstract Although relatively recent, peach culture has grown great in our country due to the special quality of the fruit, its very complex chemical composition and the large production that can be obtained without much effort. Peach is a species slightly adapted to our climatic conditions, suffers from winter frost, but can provide productive and long productions of 10-15 years.

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Characteristics of Phomopsis juglandina (Sacc.) Hohn. Associated with Dieback of Walnut in the Climatic Conditions of Southern Romania

Agronomy ◽

10.3390/agronomy11010046 ◽

2020 ◽

Vol 11 (1) ◽

pp. 46

Author(s):

Cristina Mihaescu ◽

Daniel Dunea ◽

Adrian Gheorghe Bășa ◽

Loredana Neagu Frasin

Keyword(s):

Growth Temperature ◽

Potential Evapotranspiration ◽

Optimal Growth ◽

Climatic Conditions ◽

Cultural Characteristics ◽

Optimal Growth Temperature ◽

Conidial State ◽

Optimal Ph

Phomopsis juglandina (Sacc.) Höhn., which is the conidial state of Diaporthe juglandina (Fuckel) Nitschke, and the main pathogen causing the dieback of branches and twigs of walnut was recently detected in many orchards from Romania. The symptomatological, morphological, ultrastructural, and cultural characteristics, as well as the pathogenicity of an isolate of this lignicolous fungus, were described and illustrated. The optimum periods for infection, under the conditions prevailing in Southern Romania, mainly occur in the spring (April) and autumn months (late September-beginning of October). Strong inverse correlations (p < 0.001) were found between potential evapotranspiration and lesion lengths on walnut branches in 2019. The pathogen forms two types of phialospores: alpha and beta; the role of beta phialospores is not well known in pathogenesis. In Vitro, the optimal growth temperature of mycelial hyphae was in the range of 22–26 °C, and the optimal pH is 4.4–7. This pathogen should be monitored continuously due to its potential for damaging infestations of intensive plantations.

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Elucidating the Origin of the Toxicity of Nano-CeO2 to Chlorella pyrenoidosa：the Role of Specific Surface Area and Chemical Composition

Environmental Science Nano ◽

10.1039/d0en01177k ◽

2021 ◽

Author(s):

Changjian Xie ◽

Yuhui Ma ◽

Peng Zhang ◽

Junzhe Zhang ◽

Xiaowei Li ◽

...

Keyword(s):

Chemical Composition ◽

Specific Surface ◽

Surface Area ◽

Specific Surface Area ◽

Aquatic Environment ◽

Cerium Dioxide ◽

Environmental Application ◽

Ecotoxicological Effects

With the increasing environmental application and discharge of nano cerium dioxide (nano-CeO2), it is urgent to fully understand its ecotoxicological effects on the aquatic environment. This study for the first...

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Research on Ethanol Production by Biological Fermentation of Potato Pulp

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.805-806.281 ◽

2013 ◽

Vol 805-806 ◽

pp. 281-285

Author(s):

Zhong Xu

Keyword(s):

Chemical Composition ◽

Ethanol Production ◽

Production Rate ◽

Liquid Ratio ◽

Fermentation Time ◽

Potato Pulp ◽

Fermentation Temperature ◽

Ethanol Production Rate ◽

Solid Liquid

Bioconversion of potato pulp to fuel ethanol, analysing the potato pulp chemical composition and determining the potato pulp in the role of microorganism produce ethanol under the best conditions is the major research. An analysis of the chemical composition of potato pulp showed that : the basic ingredients are Protein (9.72%), Starch (25.52%), Cellulose (17.90%). The effects of ethanol production rate of solid-liquid ratio, fermentation temperature, inoculumconcertration, fermentation time. The results showed that: the best conditions producting ethanol from potato pulp obtained by single factor experiments are: solid-liquid ratio: 1:15, fermentation temperature: 35°C, inoculumconcertration: 3mL, fermentation time: 20h. Under this occasion, the ethanol production rate was 0.183mL·g-1.

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The role of chemical composition in the synthesis of Ca/K-1144 iron based superconductors

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2021.159202 ◽

2021 ◽

pp. 159202

Author(s):

Andrea Masi ◽

Achille Angrisani Armenio ◽

Giuseppe Celentano ◽

Aurelio La Barbera ◽

Alessandro Rufoloni ◽

...

Keyword(s):

Chemical Composition ◽

Iron Based Superconductors ◽

Iron Based

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Sb-V-Ox catalysts—Role of chemical composition of MCM-41 supports in physicochemical properties

Catalysis Today ◽

10.1016/j.cattod.2008.10.044 ◽

2009 ◽

Vol 142 (3-4) ◽

pp. 175-180 ◽

Cited By ~ 9

Author(s):

H. Golinska ◽

P. Decyk ◽

M. Ziolek ◽

J. Kujawa ◽

E. Filipek

Keyword(s):

Chemical Composition ◽

Physicochemical Properties ◽

Mcm 41

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Soil and Leaf Nutrients Drivers on the Chemical Composition of the Essential Oil of Siparuna muricata (Ruiz & Pav.) A. DC. from Ecuador

Molecules ◽

10.3390/molecules26102949 ◽

2021 ◽

Vol 26 (10) ◽

pp. 2949

Author(s):

Juan I. Burneo ◽

Ángel Benítez ◽

James Calva ◽

Pablo Velastegui ◽

Vladimir Morocho

Keyword(s):

Gas Chromatography ◽

Chemical Composition ◽

Secondary Metabolites ◽

Essential Oil ◽

Chemical Elements ◽

Climatic Conditions ◽

Gas Chromatography Mass Spectrometry ◽

Chemical Compositions ◽

Leaf Nutrients ◽

First Time

Chemical compositions of plants are affected by the initial nutrient contents in the soil and climatic conditions; thus, we analyzed for the first time the effects of soil and leaf nutrients on the compositions of the essential oils (EOs) of Siparuna muricata in four different localities in Ecuador. EOs were obtained by hydrodistillation and analyzed by gas chromatography/mass spectrometry (GC/MS) and a gas chromatography/flame ionization detector (GC/FID). Enantiomeric distribution by GC/MS was determined, modifying the enantiomeric separation of β-pinene, limonene, δ-elemene, β-bourbonene, cis-cadina-1 (6), 4-diene and atractylone. A total of 44 compounds were identified. The most representative for L1 were guaiol, atractylone and 4-diene; for L2, cis-cadina-1(6),4-diene and myrcene; for L3, atractylone, myrcene and germacrene B; and finally, L4 germacrene B, myrcene and cis-cadina-1(6),4-diene. Correlations between soil- leaf chemical elements such as Al, Ca, Fe, Mg, Mn, N and Si in the different localities were significant with chemical composition of the essential oil of Siparuna muricata; however, correlations between soil and leaf K, P, and Na were not significant. Cluster and NMDS analysis showed high dissimilarity values of secondary metabolites between four localities related with changes in soil- leaf nutrients. Thus, the SIMPER routine revealed that not all secondary metabolites contribute equally to establishing the differences in the four localities, and the largest contributions are due to differences in guaiol, cis-cadina-1(6),4-diene, atractylone and germacrene. Our investigation showed for the first time the influences of altitude and soil- leaf chemical elements in the chemical composition of the EOs of S. muricata.

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Chemical Composition, Allelopathic, Antioxidant, and Anti-Inflammatory Activities of Sesquiterpenes Rich Essential Oil of Cleome amblyocarpa Barratte & Murb.

Plants ◽

10.3390/plants10071294 ◽

2021 ◽

Vol 10 (7) ◽

pp. 1294

Author(s):

Ahmed M. Abd-ElGawad ◽

Abdelbaset M. Elgamal ◽

Yasser A. EI-Amier ◽

Tarik A. Mohamed ◽

Abd El-Nasser G. El Gendy ◽

...

Keyword(s):

Chemical Composition ◽

Essential Oil ◽

Climatic Conditions ◽

Chemometric Analysis ◽

Gas Chromatography Mass Spectrometry ◽

Authentic Materials ◽

Dactyloctenium Aegyptium ◽

Hexahydrofarnesyl Acetone ◽

Ic50 Values ◽

Anti Inflammatory

The integration of green natural chemical resources in agricultural, industrial, and pharmaceutical applications allures researchers and scientistic worldwide. Cleome amblyocarpa has been reported as an important medicinal plant. However, its essential oil (EO) has not been well studied; therefore, the present study aimed to characterize the chemical composition of the C. amblyocarpa, collected from Egypt, and assess the allelopathic, antioxidant, and anti-inflammatory activities of its EO. The EO of C. amblyocarpa was extracted by hydrodistillation and characterized via gas chromatography–mass spectrometry (GC-MS). The chemometric analysis of the EO composition of the present studied ecospecies and the other reported ecospecies was studied. The allelopathic activity of the EO was evaluated against the weed Dactyloctenium aegyptium. Additionally, antioxidant and anti-inflammatory activities were determined. Forty-eight compounds, with a prespondence of sesquiterpenes, were recorded. The major compounds were caryophyllene oxide (36.01%), hexahydrofarnesyl acetone (7.92%), alloaromadendrene epoxide (6.17%), myrtenyl acetate (5.73%), isoshyobunone (4.52%), shyobunol (4.19%), and trans-caryophyllene (3.45%). The chemometric analysis revealed inconsistency in the EO composition among various studied ecospecies, where it could be ascribed to the environmental and climatic conditions. The EO showed substantial allelopathic inhibitory activity against the germination, seedling root, and shoot growth of D. aegyptium, with IC50 values of 54.78, 57.10, and 74.07 mg L−1. Additionally, the EO showed strong antioxidant potentiality based on the IC50 values of 4.52 mg mL−1 compared to 2.11 mg mL−1 of the ascorbic acid as standard. Moreover, this oil showed significant anti-inflammation via the suppression of lipoxygenase (LOX) and cyclooxygenases (COX1, and COX2), along with membrane stabilization. Further study is recommended for analysis of the activity of pure authentic materials of the major compounds either singularly or in combination, as well as for evaluation of their mechanism(s) and modes of action as antioxidants or allelochemicals.

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HAS PSYCHOLOGIC MALNUTRITION TAKEN THE PLACE OF RICKETS AND SCURVY IN CONTEMPORARY PEDIATRIC PRACTICE?

PEDIATRICS ◽

10.1542/peds.31.6.909 ◽

1963 ◽

Vol 31 (6) ◽

pp. 909-918

Author(s):

Nathan B. Talbot

Keyword(s):

Sixteenth Century ◽

Lemon Juice ◽

Climatic Conditions ◽

Northern Europe ◽

Scientific Medicine ◽

Pediatric Practice ◽

Therapeutic Value ◽

High Prevalence ◽

The Baltic

WHILE MEDICAL HISTORIANS cannot provide us with accurate statistics concerning the incidence of rickets and scurvy in centuries past, they leave little room for doubt about the high prevalence of these disorders prior to the advent of modern scientific medicine. Thus, Castiglione has written that in the sixteenth century scurvy raged throughout northern Europe, in Scandinavia, on the shores of the Baltic, and in the interior of Germany. It is interesting to note, however, that Jacques Cartier, whose sailors had been ravaged by scurvy, learned in 1536 from the Indians that the malady could be cured by juices of the almeda tree. This was 200 years before James Lind demonstrated the curative effects of lemon juice in his treatise on scurvy published in 1753 and almost 400 years before ascorbic acid, which was isolated by Szent-Gyorgi in 1928, was recognized to be vitamin C by Waugh and King in 1932. Rickets, likewise, was occurring in a large portion of children prior to the discovery of the existence of vitamin D by Hess, Steinbock, and Windaus in 1918, of its therapeutic value by Mellanby in 1919, of the equivalent role of sunlight by Hess in 1921, and of the chemical composition of the vitamins by Windaus in 1922. But 200 years earlier Friedrick Hoffman had the answer to the control of this disease almost in hand. He attached much importance to climatic conditions as a factor in rickets, noting that if anything is specially powerful in producing this affliction, it is a surrounding atmosphere of cold foggy air. He cited as striking evidence of this the famous emporium of England, London, which he found to be specially apt to produce and foster this disease.

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