scholarly journals Phytic acid prevents oxidative stress in seeds: evidence from a maize (Zea mays L.) low phytic acid mutant

2009 ◽  
Vol 60 (3) ◽  
pp. 967-978 ◽  
Author(s):  
E. Doria ◽  
L. Galleschi ◽  
L. Calucci ◽  
C. Pinzino ◽  
R. Pilu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Zea Mays ◽  
Phytic Acid ◽  
Zea Mays L ◽  
Low Phytic Acid

scholarly journals Environmental impact of phytic acid in Maize (Zea mays. L) genotypes for the identification of stable inbreds for low phytic acid

2020 ◽  
Vol 26 (7) ◽  
pp. 1477-1488
Author(s):  
J. Lydia Pramitha ◽  
G. Jeeva ◽  
R. Ravikesavan ◽  
A. John Joel ◽  
N. Kumari Vinothana ◽  
...  
Keyword(s):  
Zea Mays ◽  
Environmental Impact ◽  
Phytic Acid ◽  
Zea Mays L ◽  
Low Phytic Acid

scholarly journals 28-Homobrassinolide alleviates oxidative stress in salt-treated maize (Zea mays L.) plants

2008 ◽  
Vol 20 (2) ◽  
pp. 153-157 ◽  
Author(s):  
Nitika Arora ◽  
Renu Bhardwaj ◽  
Priyanka Sharma ◽  
Hardesh K. Arora
Keyword(s):  
Oxidative Stress ◽  
Zea Mays ◽  
Zea Mays L

scholarly journals Effects of Naphthazarin (DHNQ) Combined with Lawsone (NQ-2-OH) or 1,4-Naphthoquinone (NQ) on the Auxin-Induced Growth of Zea mays L. Coleoptile Segments

2019 ◽  
Vol 20 (7) ◽  
pp. 1788 ◽  
Author(s):  
Małgorzata Rudnicka ◽  
Michał Ludynia ◽  
Waldemar Karcz
Keyword(s):  
Oxidative Stress ◽  
Reactive Oxygen Species ◽  
Zea Mays ◽  
Incubation Medium ◽  
Zea Mays L ◽  
Reactive Oxygen ◽  
Elongation Growth ◽  
Redox Activity ◽  
Oxygen Species ◽  
Maize Coleoptile

Naphthoquinones, plants secondary metabolites are known for their antibacterial, antifungal, anti-inflammatory, anti-cancer and anti-parasitic properties. The biological activity of naphthoquinones is connected with their ability to generate reactive oxygen species and to modify biological molecules at their nucleophilic sites. In our research, the effect of naphthazarin (DHNQ) combined with 2-hydroxy-1,4-naphthoquinone (NQ-2-OH) or 1,4-naphthoquinone (1,4-NQ) on the elongation growth, pH changes of the incubation medium, oxidative stress and redox activity of maize coleoptile cells were investigated. This paper describes experiments performed with maize (Zea mays L.) coleoptile segments, which is a classical model system to study plant cell elongation growth. The data presented clearly demonstrate that lawsone and 1,4-naphthoquinone combined with naphthazarin, at low concentrations (1 and 10 nM), reduced the endogenous and IAA-induced (Indole-3-Acetic Acid) elongation growth of maize coleoptile segments. Those changes in growth correlated with the proton concentration in the incubation medium, which suggests that the changes in the growth of maize coleoptile segments observed in the presence of naphthoquinones are mediated through the activity of PM H+-ATPase. The presence of naphthoquinones induced oxidative stress in the maize coleoptile tissue by producing hydrogen peroxide and causing changes in the redox activity. Moreover, the incubation of maize segments with both naphthoquinones combined with naphthazarin resulted in lipid peroxidation and membrane damage. The regulation of PM H+-ATPase activity, especially its inhibition, may result from two major types of reaction: first, a direct interaction between an enzyme and naphthoquinone, which leads to the covalent modification of the protein thiols and the generation of thioethers, which have been found to alter the activity of the PM H+-ATPases; second, naphthoquinones induce reactive oxygen species (ROS) production, which inhibits PM H+-ATPases by increasing cytosolic Ca2+. This harmful effect was stronger when naphthazarin and 1,4-naphthoquinone were added together. Taking these results into account, it can be suggested that by combining naphthoquinones in small quantities, an alternative to synthetic pesticides could be developed.

scholarly journals Pigmented Maize (Zea mays L.) Contains Anthocyanins with Potential Therapeutic Action Against Oxidative Stress - A Review

2019 ◽  
pp. 85-99
Author(s):  
Jesús Magaña Cerino ◽  
Héctor Peniche Pavía ◽  
Axel Tiessen ◽  
Carmen Gurrola Díaz
Keyword(s):  
Oxidative Stress ◽  
Zea Mays ◽  
Zea Mays L ◽  
Therapeutic Action

The concentrations and distribution of phytic acid-phosphorus and other mineral nutrients in wild-type and low phytic acid1-1 (lpa1-1) corn (Zea mays L.) grains and grain parts

2005 ◽  
Vol 83 (1) ◽  
pp. 131-141 ◽  
Author(s):  
Lan Lin ◽  
Irene Ockenden ◽  
John NA Lott
Keyword(s):  
Zea Mays ◽  
Phytic Acid ◽  
Zea Mays L ◽  
Mineral Nutrients ◽  
Mineral Nutrient ◽  
Aleurone Layer ◽  
Whole Grain ◽  
Wild Type ◽  
Cereal Embryos ◽  
P Distribution

A comparison of mineral nutrient and phytic acid-phosphorus (PA-P) distribution in the grains of wild-type (WT) and low phytic acid1-1 (lpa1-1) corn (Zea mays L.) was conducted to determine how the lpa1-1 mutation influences mineral element concentrations in different grain parts and impacts the structure of phosphorus-rich inclusions (globoids) in the grain cells. This is the first report regarding total phosphorus (P) and PA-P concentrations in scutellum and root-shoot axis portions of cereal embryos of WT in comparison to its matching lpa1-1 genotype. In WT, 95% of the grain PA-P was located in the embryo, mostly in the scutellum. The lpa1-1 mutation reduced whole-grain PA-P by 62% but influenced the scutella more than the root-shoot axes and rest-of-grain fractions. In spite of the lpa1-1 mutants containing greatly reduced PA-P, whole-grain amounts of Mg, Fe, and Mn were higher in lpa1-1 than in WT, K and Zn were similar, and Ca was lower. Iron was 1/3 higher in lpa1-1 grains than WT while Ca was 18% lower. Decreased phytic acid in lpa1-1 grains resulted in reduction in globoid size in both scutellum and aleurone layer cells. Most lpa1-1 aleurone globoids were non-spherical and scutellum globoids were clusters of small spheres while WT globoids were large discrete spheres. X-ray analyses of globoids in both grain types revealed major amounts of P, K, and Mg and traces of Ca, Fe, and Zn. Both grain types contained almost no mineral nutrient stores in the starchy endosperm.Key words: corn (Zea mays L.), phytic acid-phosphorus, low phytic acid1-1 (lpa1-1) grains, mineral nutrients, globoids, electron microscopy.

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