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Book
Biotic and Abiotic Stress Responses in Crop Plants
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ISBN: 3038974641 3038974633 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

While the demand for crop products continues to increase strongly, agricultural productivity is threatened by various stress factors, often associated with global warming. To sustain and improve yield, it is necessary to understand how plants respond to various stresses, and to use the generated knowledge in modern breeding programs. Most knowledge regarding the molecular mechanisms associated with stress responses has been obtained from investigations using the model plant Arabidopsis thaliana. Stress hormones, such as abscisic acid, jasmonic acid, and salicylic acid, have been shown to play key roles in defense responses against abiotic and biotic stresses. More recently, evidence that growth-regulating plant hormones are also involved in stress responses has been accumulating. Epigenetic regulation at the DNA and histone level, and gene regulation by small non-coding RNAs appear to be important as well. Many approaches have used mutant screens and next generation sequencing approaches to identify key players and mechanisms how plants respond to their environment. However, it is often unclear to which extent the elucidated mechanisms also operate in crops. This Special Issue Book, therefore, aims to close this gap and contains a number of contributions from labs that work both, on Arabidopsis and crops. The book includes contributions reporting how crop plant species respond to various abiotic stresses, such as drought, heat, cold, flooding, and salinity, as well as biotic stimuli during microbial infections. It contains reviews, opinions, perspectives, and original articles, and its focus is on our molecular understanding of biotic and abiotic stress responses in crops, highlighting, among other aspects, the role of stress hormones, secondary metabolites, signaling mechanisms, and changes in gene expression patterns and their regulation. Approaches and ideas to achieve stress tolerance and to maintain yield stability of agricultural crops during stress periods can be found in most chapters. These include also perspectives on how knowledge from model plants can be utilized to facilitate crop-plant breeding and biotechnology.


Article
Heart rate and stress hormone responses of sheep to road transport following two different loading procedures.
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Year: 1998

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This study was designed to investigate the physiological responses induced in sheep (n = 18) by two different loading techniques followed by a short road journey. All animals were prepared with venous catheters, to minimize the disturbing effects of blood sampling, and nine sheep were fitted with heart rate monitors. The animals were loaded onto a transport vehicle in groups of three, alternately using a conventional tailgate ramp or a crate raised with a hydraulic lift When all of the sheep were loaded, they were taken on a journey lasting 195min. Blood samples were collected in the home pen, directly after loading, and at 15min intervals during the journey. Measurements were made of plasma concentrations of cortisol, prolactin and catecholamines (adrenaline and noradrenaline). The results indicated that heart rate increased during lending, regardless of the method used No changes in concentrations ofcortisol or the catecholamines were detected, although a small increase in prolactin was noted when animals were loaded using the ramp. During transport all sheep exhibited increases in plasma cortisol concentrations which were greatest during the first 2h of the journey. The results suggest that, under the conditions employed in this experiment, the effects of the two loading procedures were similar and that transport appeared to be more stressful than lending


Book
The Potential of Dietary Antioxidants
Authors: ---
Year: 2022 Publisher: Basel MDPI Books

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Abstract

Oxidative stress causes chronic diseases such as cardiovascular disease, cancer, Alzheimer, chronic obstructive pulmonary, and neurodegenerative pathologies. Antioxidant systems defend human cells from free radicals. They act by stopping free radicals, decreasing their development, and quenching the formed ROS and RNS. The antioxidant molecules are classified into primary and secondary defense molecules. The primary antioxidant molecules (i.e., vitamins C and E, ubiquinone, and glutathione) reduce oxidation effects by moving a proton to the free radical species or electron donors, or by terminating the chain reactions The secondary antioxidants (i.e., N-acetyl cysteine and lipoic acid) act as cofactors for some enzyme systems or neutralize the production of free radicals by transition metals. This work comprises original research papers and reviews on antioxidant molecules in food, the agricultural practices that maximize their levels in plants, the potential preventive effects of selected classes of antioxidant molecules, their potential use in functional foods, and the pharmaceutical delivery systems that maximize their potential activity when used as supplements.

Keywords

Research & information: general --- Biology, life sciences --- Food & society --- Trichoderma spp. --- EVOO --- olive pomace --- olive vegetation water --- Olea europea var Leccino --- HRMS-Orbitrap --- phenolic identification --- antioxidant activity --- grape seed oil fatty acid --- novel extraction --- tocopherol --- supercritical fluid --- microwave assisted --- ultrasound assisted --- Soxhlet --- olive mill wastewater --- olive oil --- Olive Pâté --- antioxidants --- nutraceutical --- Q Exactive Orbitrap LC-MS/MS --- Clery strawberry --- food processing --- Polyphenols --- multi-methodological evaluation --- HS-GC/MS analysis --- PCA --- antioxidant --- HepG2 cells --- EVOO extract --- IOC methods --- LDLR --- PCSK9 --- tomatoes --- NMR spectroscopy --- FT-ICR mass spectrometry --- ripening stage --- phenolics --- metabolomics --- phytochemicals --- cardoon --- multipurpose plant --- chlorogenic acid --- fatty acids --- herbal treatment --- organic zinc --- lamb --- Haemonchus contortus --- antioxidant enzymes --- lipid peroxidation --- mineral status --- paraxanthine --- caffeine --- CYP1A2 phenotyping --- human saliva --- differential pulse voltammetry --- egg --- flavonoids --- inductively coupled plasma mass spectrometry (ICP-MS) --- metallome --- quercetin --- walnut --- by-products --- antitussive --- ROS --- NOx --- IL-6 --- CXC-R1 --- histopathological analysis --- sustainable agriculture --- onion skin --- traditional varieties --- flavonols --- dietary antioxidants, --- Helichrysum --- medicinal plants --- infusions --- phenolic compounds --- antioxidative potential --- polyphenols --- flavonids --- endogenous antioxidant enzymes --- reduced glutathione --- oxidized glutathione --- catalase --- superoxide dismutase --- interleukin 6 --- tumor necrosis factor --- endurance sports --- Ficus carica --- oxidative stress protection --- stress hormones --- epidermal skin barrier --- nutricosmetics --- brown rice --- fermentation --- germination --- stress --- bioactive compounds --- untargeted metabolomics --- functional food --- health benefits --- lovage --- elicitation --- phenolic acids --- potential anti-inflammatory potential --- anticancer properties --- antioxidative activity --- bioactive peptides --- peptidomics --- mass spectrometry --- soybean --- plant-based foods --- LDL --- CVD --- lipid oxidation --- dietary fiber --- cholesterol --- hyperlipidemia --- microalgae --- spirulina --- inflammation --- lipopolysaccharide --- dairy cows --- fattening bulls --- leukocytes --- spices --- condiments --- extra-virgin olive oil --- antiviral properties --- antioxidant properties --- nutricosmetic --- grape seed --- pomace --- polyunsaturated fatty acids --- polyphenol --- resveratrol --- rutin --- HPLC --- GC --- coumarins --- green synthesis --- DFT --- red algae --- antioxidant and antimicrobial ability --- lipoperoxidation --- salmon --- anticancer --- marigold --- sage --- bearberry --- eucalyptus --- yarrow --- apples --- pomegranate --- mitochondrial DNA --- DNA damage --- apoptosis --- oral cancer --- arbutin --- melanin --- pigment --- melasma --- skin lightening --- cosmetic --- hyperpigmentation --- tyrosinase --- nuclear factor erythroid 2-related factor 2 (Nrf2) --- Brassicaceae --- light wavelength --- reactive oxygen species (ROS) --- oxidative stress --- antioxidant proteins --- Moringa leaf extract --- nanoencapsulation --- rabbit --- physiology --- reproduction --- Trichoderma spp. --- EVOO --- olive pomace --- olive vegetation water --- Olea europea var Leccino --- HRMS-Orbitrap --- phenolic identification --- antioxidant activity --- grape seed oil fatty acid --- novel extraction --- tocopherol --- supercritical fluid --- microwave assisted --- ultrasound assisted --- Soxhlet --- olive mill wastewater --- olive oil --- Olive Pâté --- antioxidants --- nutraceutical --- Q Exactive Orbitrap LC-MS/MS --- Clery strawberry --- food processing --- Polyphenols --- multi-methodological evaluation --- HS-GC/MS analysis --- PCA --- antioxidant --- HepG2 cells --- EVOO extract --- IOC methods --- LDLR --- PCSK9 --- tomatoes --- NMR spectroscopy --- FT-ICR mass spectrometry --- ripening stage --- phenolics --- metabolomics --- phytochemicals --- cardoon --- multipurpose plant --- chlorogenic acid --- fatty acids --- herbal treatment --- organic zinc --- lamb --- Haemonchus contortus --- antioxidant enzymes --- lipid peroxidation --- mineral status --- paraxanthine --- caffeine --- CYP1A2 phenotyping --- human saliva --- differential pulse voltammetry --- egg --- flavonoids --- inductively coupled plasma mass spectrometry (ICP-MS) --- metallome --- quercetin --- walnut --- by-products --- antitussive --- ROS --- NOx --- IL-6 --- CXC-R1 --- histopathological analysis --- sustainable agriculture --- onion skin --- traditional varieties --- flavonols --- dietary antioxidants, --- Helichrysum --- medicinal plants --- infusions --- phenolic compounds --- antioxidative potential --- polyphenols --- flavonids --- endogenous antioxidant enzymes --- reduced glutathione --- oxidized glutathione --- catalase --- superoxide dismutase --- interleukin 6 --- tumor necrosis factor --- endurance sports --- Ficus carica --- oxidative stress protection --- stress hormones --- epidermal skin barrier --- nutricosmetics --- brown rice --- fermentation --- germination --- stress --- bioactive compounds --- untargeted metabolomics --- functional food --- health benefits --- lovage --- elicitation --- phenolic acids --- potential anti-inflammatory potential --- anticancer properties --- antioxidative activity --- bioactive peptides --- peptidomics --- mass spectrometry --- soybean --- plant-based foods --- LDL --- CVD --- lipid oxidation --- dietary fiber --- cholesterol --- hyperlipidemia --- microalgae --- spirulina --- inflammation --- lipopolysaccharide --- dairy cows --- fattening bulls --- leukocytes --- spices --- condiments --- extra-virgin olive oil --- antiviral properties --- antioxidant properties --- nutricosmetic --- grape seed --- pomace --- polyunsaturated fatty acids --- polyphenol --- resveratrol --- rutin --- HPLC --- GC --- coumarins --- green synthesis --- DFT --- red algae --- antioxidant and antimicrobial ability --- lipoperoxidation --- salmon --- anticancer --- marigold --- sage --- bearberry --- eucalyptus --- yarrow --- apples --- pomegranate --- mitochondrial DNA --- DNA damage --- apoptosis --- oral cancer --- arbutin --- melanin --- pigment --- melasma --- skin lightening --- cosmetic --- hyperpigmentation --- tyrosinase --- nuclear factor erythroid 2-related factor 2 (Nrf2) --- Brassicaceae --- light wavelength --- reactive oxygen species (ROS) --- oxidative stress --- antioxidant proteins --- Moringa leaf extract --- nanoencapsulation --- rabbit --- physiology --- reproduction


Book
The Potential of Dietary Antioxidants
Authors: ---
Year: 2022 Publisher: Basel MDPI Books

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Export citation

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Bookmark

Abstract

Oxidative stress causes chronic diseases such as cardiovascular disease, cancer, Alzheimer, chronic obstructive pulmonary, and neurodegenerative pathologies. Antioxidant systems defend human cells from free radicals. They act by stopping free radicals, decreasing their development, and quenching the formed ROS and RNS. The antioxidant molecules are classified into primary and secondary defense molecules. The primary antioxidant molecules (i.e., vitamins C and E, ubiquinone, and glutathione) reduce oxidation effects by moving a proton to the free radical species or electron donors, or by terminating the chain reactions The secondary antioxidants (i.e., N-acetyl cysteine and lipoic acid) act as cofactors for some enzyme systems or neutralize the production of free radicals by transition metals. This work comprises original research papers and reviews on antioxidant molecules in food, the agricultural practices that maximize their levels in plants, the potential preventive effects of selected classes of antioxidant molecules, their potential use in functional foods, and the pharmaceutical delivery systems that maximize their potential activity when used as supplements.

Keywords

Trichoderma spp. --- EVOO --- olive pomace --- olive vegetation water --- Olea europea var Leccino --- HRMS-Orbitrap --- phenolic identification --- antioxidant activity --- grape seed oil fatty acid --- novel extraction --- tocopherol --- supercritical fluid --- microwave assisted --- ultrasound assisted --- Soxhlet --- olive mill wastewater --- olive oil --- Olive Pâté --- antioxidants --- nutraceutical --- Q Exactive Orbitrap LC-MS/MS --- Clery strawberry --- food processing --- Polyphenols --- multi-methodological evaluation --- HS-GC/MS analysis --- PCA --- antioxidant --- HepG2 cells --- EVOO extract --- IOC methods --- LDLR --- PCSK9 --- tomatoes --- NMR spectroscopy --- FT-ICR mass spectrometry --- ripening stage --- phenolics --- metabolomics --- phytochemicals --- cardoon --- multipurpose plant --- chlorogenic acid --- fatty acids --- herbal treatment --- organic zinc --- lamb --- Haemonchus contortus --- antioxidant enzymes --- lipid peroxidation --- mineral status --- paraxanthine --- caffeine --- CYP1A2 phenotyping --- human saliva --- differential pulse voltammetry --- egg --- flavonoids --- inductively coupled plasma mass spectrometry (ICP-MS) --- metallome --- quercetin --- walnut --- by-products --- antitussive --- ROS --- NOx --- IL-6 --- CXC-R1 --- histopathological analysis --- sustainable agriculture --- onion skin --- traditional varieties --- flavonols --- dietary antioxidants, --- Helichrysum --- medicinal plants --- infusions --- phenolic compounds --- antioxidative potential --- polyphenols --- flavonids --- endogenous antioxidant enzymes --- reduced glutathione --- oxidized glutathione --- catalase --- superoxide dismutase --- interleukin 6 --- tumor necrosis factor --- endurance sports --- Ficus carica --- oxidative stress protection --- stress hormones --- epidermal skin barrier --- nutricosmetics --- brown rice --- fermentation --- germination --- stress --- bioactive compounds --- untargeted metabolomics --- functional food --- health benefits --- lovage --- elicitation --- phenolic acids --- potential anti-inflammatory potential --- anticancer properties --- antioxidative activity --- bioactive peptides --- peptidomics --- mass spectrometry --- soybean --- plant-based foods --- LDL --- CVD --- lipid oxidation --- dietary fiber --- cholesterol --- hyperlipidemia --- microalgae --- spirulina --- inflammation --- lipopolysaccharide --- dairy cows --- fattening bulls --- leukocytes --- spices --- condiments --- extra-virgin olive oil --- antiviral properties --- antioxidant properties --- nutricosmetic --- grape seed --- pomace --- polyunsaturated fatty acids --- polyphenol --- resveratrol --- rutin --- HPLC --- GC --- coumarins --- green synthesis --- DFT --- red algae --- antioxidant and antimicrobial ability --- lipoperoxidation --- salmon --- anticancer --- marigold --- sage --- bearberry --- eucalyptus --- yarrow --- apples --- pomegranate --- mitochondrial DNA --- DNA damage --- apoptosis --- oral cancer --- arbutin --- melanin --- pigment --- melasma --- skin lightening --- cosmetic --- hyperpigmentation --- tyrosinase --- nuclear factor erythroid 2-related factor 2 (Nrf2) --- Brassicaceae --- light wavelength --- reactive oxygen species (ROS) --- oxidative stress --- antioxidant proteins --- Moringa leaf extract --- nanoencapsulation --- rabbit --- physiology --- reproduction --- n/a --- Olive Pâté

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