scholarly journals Synergy of Nitric Oxide and 1-Methylcyclopropene Treatment in Prolong Ripening and Senescence of Peach Fruit

Foods ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2956
Author(s):  
Xiaoqin Wu ◽  
Jiawei Yuan ◽  
Xiaoqing Wang ◽  
Mingliang Yu ◽  
Ruijuan Ma ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Fruit Quality ◽  
Prunus Persica ◽  
Molecular Evidence ◽  
Peach Fruit ◽  
Beneficial Effects ◽  
Time Treatment ◽  
Chemical Agents ◽  
Low Concentrations ◽  
Short Time

Peach is a putrescible fruit thus drastically restricting its postharvest storage life. In recent years, the application of 1-methylcyclopropene (1-MCP) and nitric oxide (NO) in postharvest fruit quality control has received considerable attention and investigative efforts due to the advantages of using relatively low concentrations and short-time treatment duration. In the present study, the effects of various 1-MCP and NO treatments on peach fruit (Prunus persica L. cv. Xiahui-8) stored at 25 °C were evaluated and compared. Results indicated that the combination treatment with both chemical agents (MN) was most effective in postponing peach ripening and preserving fruit quality, followed by 1-MCP and NO treatment alone. We also demonstrated that NO could delay fruit senescence mainly by stimulating antioxidant enzymes, while 1-MCP overly outperformed NO in the treatment of ‘Xiahui-8′ peach in slowing down respiration rate, inhibiting ethylene production, maintaining high firmness and reducing ROS content. NO treatment showed a greater influence on phenolic compounds than 1-MCP especially anthocyanins, flavanones and flavones according to LC/MS analysis. The phenolic change in MN group were highly associated to NO treatment. Through this study we provide informative physiological, biochemical and molecular evidence for the beneficial effects of the combined 1-MCP and NO treatment on peach fruit based on a functional synergy between these two chemical agents.

Skeletal muscle nitric oxide signaling and exercise: a focus on glucose metabolism

2012 ◽  
Vol 303 (3) ◽  
pp. E301-E307 ◽  
Author(s):  
Glenn K. McConell ◽  
Stephen Rattigan ◽  
Robert S. Lee-Young ◽  
Glenn D. Wadley ◽  
Troy L. Merry
Keyword(s):  
Nitric Oxide ◽  
Skeletal Muscle ◽  
Blood Flow ◽  
Glucose Uptake ◽  
No Production ◽  
Nitric Oxide Signaling ◽  
Beneficial Effects ◽  
Low Concentrations ◽  
High Concentrations ◽  
Cellular Components

Nitric oxide (NO) is an important vasodilator and regulator in the cardiovascular system, and this link was the subject of a Nobel prize in 1998. However, NO also plays many other regulatory roles, including thrombosis, immune function, neural activity, and gastrointestinal function. Low concentrations of NO are thought to have important signaling effects. In contrast, high concentrations of NO can interact with reactive oxygen species, causing damage to cells and cellular components. A less-recognized site of NO production is within skeletal muscle, where small increases are thought to have beneficial effects such as regulating glucose uptake and possibly blood flow, but higher levels of production are thought to lead to deleterious effects such as an association with insulin resistance. This review will discuss the role of NO in skeletal muscle during and following exercise, including in mitochondrial biogenesis, muscle efficiency, and blood flow with a particular focus on its potential role in regulating skeletal muscle glucose uptake during exercise.

scholarly journals Physical Exercise and Cardiac Repair: The Potential Role of Nitric Oxide in Boosting Stem Cell Regenerative Biology

Antioxidants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1002
Author(s):  
Fabiola Marino ◽  
Mariangela Scalise ◽  
Eleonora Cianflone ◽  
Luca Salerno ◽  
Donato Cappetta ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Stem Cell ◽  
Physical Exercise ◽  
Cell Biology ◽  
Molecular Mechanisms ◽  
Heart Function ◽  
Stem Cell Biology ◽  
Myocardial Repair ◽  
Beneficial Effects

Over the years strong evidence has been accumulated showing that aerobic physical exercise exerts beneficial effects on the prevention and reduction of cardiovascular risk. Exercise in healthy subjects fosters physiological remodeling of the adult heart. Concurrently, physical training can significantly slow-down or even reverse the maladaptive pathologic cardiac remodeling in cardiac diseases, improving heart function. The underlying cellular and molecular mechanisms of the beneficial effects of physical exercise on the heart are still a subject of intensive study. Aerobic activity increases cardiovascular nitric oxide (NO) released mainly through nitric oxidase synthase 3 activity, promoting endothelium-dependent vasodilation, reducing vascular resistance, and lowering blood pressure. On the reverse, an imbalance between increasing free radical production and decreased NO generation characterizes pathologic remodeling, which has been termed the “nitroso-redox imbalance”. Besides these classical evidence on the role of NO in cardiac physiology and pathology, accumulating data show that NO regulate different aspects of stem cell biology, including survival, proliferation, migration, differentiation, and secretion of pro-regenerative factors. Concurrently, it has been shown that physical exercise generates physiological remodeling while antagonizes pathologic remodeling also by fostering cardiac regeneration, including new cardiomyocyte formation. This review is therefore focused on the possible link between physical exercise, NO, and stem cell biology in the cardiac regenerative/reparative response to physiological or pathological load. Cellular and molecular mechanisms that generate an exercise-induced cardioprotective phenotype are discussed in regards with myocardial repair and regeneration. Aerobic training can benefit cells implicated in cardiovascular homeostasis and response to damage by NO-mediated pathways that protect stem cells in the hostile environment, enhance their activation and differentiation and, in turn, translate to more efficient myocardial tissue regeneration. Moreover, stem cell preconditioning by and/or local potentiation of NO signaling can be envisioned as promising approaches to improve the post-transplantation stem cell survival and the efficacy of cardiac stem cell therapy.

Metabolic signatures of the true physiological impact of canopy light environment on peach fruit quality

2021 ◽  
Vol 191 ◽  
pp. 104630 ◽  
Author(s):  
Brendon M. Anthony ◽  
Jacqueline M. Chaparro ◽  
David G. Sterle ◽  
Jessica E. Prenni ◽  
Ioannis S. Minas
Keyword(s):  
Fruit Quality ◽  
Light Environment ◽  
Peach Fruit ◽  
Physiological Impact ◽  
Metabolic Signatures

scholarly journals Characterization and Transcript Profiling of PME and PMEI Gene Families during Peach Fruit Maturation

2017 ◽  
Vol 142 (4) ◽  
pp. 246-259 ◽  
Author(s):  
Yunqing Zhu ◽  
Wenfang Zeng ◽  
Xiaobei Wang ◽  
Lei Pan ◽  
Liang Niu ◽  
...  
Keyword(s):  
Fruit Ripening ◽  
Prunus Persica ◽  
Expression Patterns ◽  
Pectin Methylesterase ◽  
Gene Families ◽  
Naphthaleneacetic Acid ◽  
Regulation Mechanism ◽  
Fruit Softening ◽  
Peach Fruit

Pectins are synthesized and secreted to the cell wall as highly methyl-esterified polymers and demethyl-esterified by pectin methylesterases (PMEs), which are regulated by pectin methylesterase inhibitors (PMEIs). PMEs and PMEIs are involved in pectin degradation during fruit softening; however, the roles of the PME and PMEI gene families during fruit softening remain unclear. Here, 71 PME and 30 PMEI genes were identified in the peach (Prunus persica) genome and shown to be unevenly distributed on all eight chromosomes. The 71 PME genes comprised 36 Type-1 PMEs and 35 Type-2 PMEs. Transcriptome analysis showed that 11 PME and 15 PMEI genes were expressed during fruit ripening in melting flesh (MF) and stony-hard (SH) peaches. Three PME and five PMEI genes were expressed at higher levels in MF than in SH fruit and exhibited softening-associated expression patterns. Upstream regulatory cis elements of these genes related to hormone response, especially naphthaleneacetic acid and ethylene, were investigated. One PME (Prupe.7G192800) and two PMEIs (Prupe.1G114500 and Prupe.2G279800), and their promoters were identified as potential targets for future studies on the biochemical metabolism and regulation of fruit ripening. The comprehensive data generated in this study will improve our understanding of the PME and PMEI gene families in peach. However, further detailed investigation is necessary to elucidate the biochemical function and regulation mechanism of the PME and PMEI genes during peach fruit ripening.

SENSORY EVALUATION AND PEACH FRUIT QUALITY

2006 ◽  
pp. 429-434 ◽  
Author(s):  
S. Predieri ◽  
P. Ragazzini ◽  
R. Rondelli
Keyword(s):  
Sensory Evaluation ◽  
Fruit Quality ◽  
Peach Fruit

Nitric oxide has no beneficial effects on ion transport defects in cystic fibrosis human nasal epithelium

2000 ◽  
Vol 441 (1) ◽  
pp. 133-137 ◽  
Author(s):  
Claudia Rückes-Nilges ◽  
H. Lindemann ◽  
Thorsten Klimek ◽  
Hiltrud Glanz ◽  
Wolf-Michael Weber
Keyword(s):  
Nitric Oxide ◽  
Cystic Fibrosis ◽  
Ion Transport ◽  
Nasal Epithelium ◽  
Beneficial Effects ◽  
Human Nasal Epithelium
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