scholarly journals Electromagnetic Field Improved Nanoparticle Impact on Antioxidant Activity and Secondary Metabolite Production in Anthemis gilanica Seedlings

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Halimeh Hassanpour ◽  
Ali Eydi ◽  
Malak Hekmati
Keyword(s):  
Hydrogen Peroxide ◽  
Electromagnetic Field ◽  
Secondary Metabolites ◽  
Protein Content ◽  
Adventitious Roots ◽  
Physiological Responses ◽  
Carotenoid Content ◽  
Peroxide Content ◽  
Combined Application ◽  
Metabolites Production

Electromagnetic field (EMF) causes fundamental alternations in biological systems. In this study, we studied the effects of EMF on physiological responses and secondary metabolites production in SiO2 NP-treated Anthemis gilanica plants. The results indicated that EMF improved plant growth by inducing chlorophyll and carotenoid content, which led to enhanced biomass in SiO2 NP-treated plants. EMF enhanced adventitious roots in SiO2 NP-treated plants. EMF treatment improved the activity of antioxidative enzymes such as superoxide dismutase, catalase, and peroxidase in both control and SiO2 NP-treated plants. EMF and SiO2 NP treatments significantly declined hydrogen peroxide content in A. gilanica plants. Although protein content was reduced by SiO2 NP treatment, combined application of EMF with SiO2 NP caused a significant induction in protein content. Our results presented that EMF induced secondary metabolites accumulation such as flavonoid and phenol in SiO2 NP-treated A. gilanica plants. This work can open prospects for the production of the pharmaceutically high-value secondary metabolites.

scholarly journals Exposure to Electromagnetic Fields (EMF) from Submarine Power Cables Can Trigger Strength-Dependent Behavioural and Physiological Responses in Edible Crab, Cancer pagurus (L.)

2021 ◽  
Vol 9 (7) ◽  
pp. 776
Author(s):  
Kevin Scott ◽  
Petra Harsanyi ◽  
Blair A. A. Easton ◽  
Althea J. R. Piper ◽  
Corentine M. V. Rochas ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Policy Making ◽  
Physiological Responses ◽  
Dependent Manner ◽  
Power Cables ◽  
Environmental Assessments ◽  
Cancer Pagurus ◽  
Commercially Important ◽  
Total Haemocyte Count

The current study investigated the effects of different strength Electromagnetic Field (EMF) exposure (250 µT, 500 µT, 1000 µT) on the commercially important decapod, edible crab (Cancer pagurus, Linnaeus, 1758). Stress related parameters were measured (l-Lactate, d-Glucose, Total Haemocyte Count (THC)) in addition to behavioural and response parameters (shelter preference and time spent resting/roaming) over 24 h periods. EMF strengths of 250 µT were found to have limited physiological and behavioural impacts. Exposure to 500 µT and 1000 µT were found to disrupt the l-Lactate and d-Glucose circadian rhythm and alter THC. Crabs showed a clear attraction to EMF exposed (500 µT and 1000 µT) shelters with a significant reduction in time spent roaming. Consequently, EMF emitted from MREDs will likely affect crabs in a strength-dependent manner thus highlighting the need for reliable in-situ measurements. This information is essential for policy making, environmental assessments, and in understanding the impacts of increased anthropogenic EMF on marine organisms.

Role of Stress and Defense in Plant Secondary Metabolites Production

2020 ◽  
pp. 151-195
Author(s):  
Humberto Aguirre-Becerra ◽  
Ma Cristina Vazquez-Hernandez ◽  
Diana Saenz de la O ◽  
Aurora Alvarado-Mariana ◽  
Ramon G. Guevara-Gonzalez ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Plant Secondary Metabolites ◽  
Metabolites Production

scholarly journals Soil actinomycetes molecular characterization for secondary metabolites production

2021 ◽  
Vol 0 (0) ◽  
pp. 40-44
Author(s):  
Shakir Ullah ◽  
Zubaida Muhammad ◽  
Saqlain Jehan ◽  
Samavia Zia ◽  
Zakir Hussain ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Molecular Characterization ◽  
Soil Actinomycetes ◽  
Metabolites Production

scholarly journals INFLUENCE OF AUXIN ON IN VITRO SECONDARY METABOLITES PRODUCTION FROM BALANITES AEGYPTIACA CALLUS CULTURES

2021 ◽  
Vol 21 (2) ◽  
Author(s):  
Asmaa A.A. Abdel- Kareem ◽  
H.A. El- Shamy ◽  
A.K. Dawh ◽  
S.G. Gwiefel
Keyword(s):  
Secondary Metabolites ◽  
Callus Cultures ◽  
Total Phenolic ◽  
Total Flavonoids ◽  
Ms Medium ◽  
Total Phenolic Compounds ◽  
Fresh Weight ◽  
Balanites Aegyptiaca ◽  
Metabolites Production

The present work was conducted in order to investigate the effect of auxin type (2,4-D and NAA) and concentration (0.00, 0.25, 0.50, 1.00 and 2.00 mg/l) on Balanites aegyptiaca callus cultures growth and production of secondary metabolites. Obtained results demonstrated that supplementation MS medium with 2,4-D at 2.0 mg/l could enhanced and recorded the ultimate values of callus fresh weight, antioxidant activity (%), total flavonoids, total phenolic compounds and total saponins contents and yields of Balanites aegyptiaca L. callus.

DDT-Contaminated Soil Treatment with Persulfate and Hydrogen Peroxide Utilizing Different Activation Aids and the Chemicals Combination with Biosurfactant

2012 ◽  
Vol 15 (1) ◽  
Author(s):  
Anna Goi ◽  
Marika Viisimaa ◽  
Oleksandr Karpenko
Keyword(s):  
Hydrogen Peroxide ◽  
Contaminated Soil ◽  
Soil Treatment ◽  
Natural Soil ◽  
Persulfate Oxidation ◽  
Oxidation Processes ◽  
Combined Application ◽  
Chemical Oxidants ◽  
Effective Option ◽  
Magnesium Peroxide

AbstractThe efficacy of DDT-contaminated soil treatment with hydrogen peroxide and persulfate utilizing different activation aids and the chemicals combination with biosurfactant was evaluated. The addition of a supplementary activator was able to improve the degradation of total DDT with both the hydrogen peroxide and persulfate oxidation processes indicating a lack of available activator. Ferrous iron added gradually was effectively utilized in the oxidation system with gradual addition of hydrogen peroxide, while chelated metal iron addition promoted the oxidation with more stable persulfate. The treatment with solid carriers of hydrogen peroxide, either calcium peroxide or magnesium peroxide, can be an effective alternative to the liquid one resulting in a higher degradation level of the contaminant. Strong alkalization with elevated dosages of NaOH sustained the persulfate oxidation of DDT. The addition of biosurfactant, rhamnolipid-alginate complex obtained by biosynthesis of strain Pseudomonas sp. PS-17, and EDTA improved the degradation of DDT by both persulfate and hydrogen peroxide oxidation processes indicating that the combined application of chemical oxidants and biosurfactant at natural soil pH has prospects as an effective option for contaminated soil remediation.

scholarly journals How Pre-Harvest Inactivated Yeast Treatment May Influence the Norisoprenoid Aroma Potential in Wine Grapes

2020 ◽  
Vol 10 (10) ◽  
pp. 3369
Author(s):  
Pasquale Crupi ◽  
Marika Santamaria ◽  
Fernando Vallejo ◽  
Francisco A. Tomás-Barberán ◽  
Gianvito Masi ◽  
...  
Keyword(s):  
Secondary Metabolites ◽  
Principal Components ◽  
Foliar Application ◽  
Carotenoid Content ◽  
Wine Grapes ◽  
Wine Production ◽  
Italian Wine ◽  
Components Analysis ◽  
The Difference ◽  
Β Carotene

Carotenoids are important secondary metabolites in wine grapes and play a key role as potential precursors of aroma compounds (i.e., C13-norisoprenoids), which have a high sensorial impact in wines. There is scarce information about the influence of pre-harvest inactivated yeast treatment on the norisoprenoid aroma potential of grapes. Thus, this work aimed to study the effect of the foliar application of yeast extracts (YE) to Negro Amaro and Primitivo grapevines on the carotenoid content during grape ripening and the difference between the resulting véraison and maturity (ΔC). The results showed that β-carotene and (allE)-lutein were the most abundant carotenoids in all samples, ranging from 60% to 70% of total compounds. Their levels, as well as those of violaxanthin, (9′Z)-neoxanthin, and 5,6-epoxylutein, decreased during ripening. This was especially observed in treated grapes, with ΔC values from 2.6 to 4.2-fold higher than in untreated grapes. Besides this, a principal components analysis (PCA) demonstrated that lutein, β-carotene, and violaxanthin and (9′Z)-neoxanthin derivatives principally characterized Negro Amaro and Primitivo, respectively. Thereby, the YE treatment has proved to be effective in improving the C13-norisoprenoid aroma potentiality of Negro Amaro and Primitivo, which are fundamental cultivars in the context of Italian wine production.

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