spinacia/해독

The 2-cysteine peroxiredoxins (2-Cys Prx) constitute an ancient family of peroxide detoxifying enzymes and have acquired a plant-specific function in the oxygenic environment of the chloroplast. Immunocytochemical analysis and work with isolated intact chloroplasts revealed a reversible binding of

A fungal strain capable of utilizing chlorpyrifos as sole carbon and energy sources was isolated from soil by enrichment cultivation approach. The half-lives of degradation (DT(50)) for chlorpyrifos at concentrations of 1, 10, and 100 mg l(-1) by the fungal strain DSP in mineral salt medium were

Intact chloroplasts isolated from spinach (Spinacia oleracea L. cv Yates) both oxidized and reduced added sulfite in the light. Oxidation was fast only when endogenous superoxide dismutase was inhibited by cyanide. It was largely suppressed by scavengers of oxygen radicals. After addition of

To explore the possible roles of metallothioneins (MTs) played in cadmium (Cd) accumulation of water spinach, three IaMT genes, IaMT1, IaMT2 and IaMT3 in a high-shoot-Cd (T308) and a low-shoot-Cd accumulation cultivar (QLQ) were cloned, characterized, and quantitated. Gene expression analysis

In plants, microRNAs (miRNAs) play regulatory roles in response to various environmental stresses. In order to illustrate the regulation mechanisms of miRNAs involving the different Cd accumulation abilities between a low-shoot-Cd cultivar (QLQ) and a high-shoot-Cd cultivar (T308) of water spinach

The plants of Spinacia oleracea L. grown on contaminated soil (CS) and different amendments of tannery sludge (TS) have shown high accumulation of metals in its edible part. The accumulation of toxic metal (Cr) in the leaves of the plants grown on CS was recorded as 40.67 microgg(-1)dw. However, the

An oxidative detoxification of sulfite, which originates from sulfur dioxide taken up into a leaf, has not yet been fully understood. In this study, we discuss that redox reactions between sulfite and H2O2 have an important role for the detoxification of sulfite. Sulfite was oxidized by H2O2 and

Leaf peroxisomes are fragile, low-abundance plant cell organelles that are difficult to isolate from one of the few plant species whose nuclear genome has been sequenced. Leaf peroxisomes were enriched at high purity from spinach (Spinacia oleracea) and approximately 100 protein spots identified

Washed lamellae from isolated spinach chloroplasts exhibited peroxidative activity with 3,3'-diaminobenzidine or ascorbate as electron donors. By heat treatment or by incubation of the chloroplasts with pronase a heat-labile enzymic activity (system A) and a heat-stable non-enzymic peroxidative

Chromium (Cr) exists in the environment in two chemical forms; Cr^III is an essential micronutrient for glucose and lipid metabolism, whereas Cr^VI is toxic and a recognised carcinogen through inhalation. Numerous studies have attempted to evaluate

Degradation of ethylenebisdithiocarbamate fungicides (EBDCs) is known to produce ethylenethiourea (ETU). This article reviews the literature available on the toxicology of EBDCs and ETU, the sources in plants and persistence of ETU, and its formation during heat treatment of plant products.

In plants, glutathione (GSH) is crucial for the detoxification and tolerance of heavy metals. However, the change characteristics and decisive enzymes involved in GSH metabolism under heavy metal exposure are still unclear. Based on long-term exposure cultivation of spinach and monitoring of the

Chlorosis develops in Spinacia oleracea L. plants exposed to Cd and is prevalently localized in the basal leaves. A proteomic comparison of basal and apical leaves from Cd-treated plants showed modified profiles that are different and complementary in the two locations. Total chlorophyll increased