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Cadmium effect on oxidative metabolism of pea (Pisum sativum L.) roots. Imaging of reactive oxygen species and nitric oxide accumulation in vivo.
TLDR
Analysis of reactive oxygen species (ROS) and nitric oxide (NO) levels by fluorescence and confocal laser microscopy showed an over-accumulation of O2*- and H2O2, and a reduction in the NO content in lateral and principal roots, which could regulate the cellular response to cope with damages imposed by cadmium. Expand
Reactive oxygen species, antioxidant systems and nitric oxide in peroxisomes.
TLDR
The recent demonstration of the presence of nitric oxide synthase (NOS) in plant peroxisomes implies that these organelles could also have a function in plant cells as a source of signal molecules like nitricoxide (NO*), superoxide radicals, hydrogen peroxide, and possibly S-nitrosoglutathione (GSNO). Expand
Cadmium-induced subcellular accumulation of O2·− and H2O2 in pea leaves
TLDR
The Cd-induced production of the ROS, H2O2 and O2·−, could be attributed to the phytotoxic effect of Cd, but lower levels of ROS could function as signal molecules in the induction of defence genes against Cd toxicity. Expand
Salt-induced oxidative stress in chloroplasts of pea plants
TLDR
Results obtained suggest that in the cellular toxicity of NaCl in pea plants, superoxide- and H 2 O 2 -mediated oxidative damage in chloroplasts may play an important role. Expand
Peroxisomes as a source of reactive oxygen species and nitric oxide signal molecules in plant cells.
TLDR
The signal molecule-generating capacity of peroxisomes can have important implications for cellular metabolism in plants, particularly under biotic and abiotic stress. Expand
Localization of S-nitrosoglutathione and expression of S-nitrosoglutathione reductase in pea plants under cadmium stress.
TLDR
Results indicate that GSNO is associated with a specific plant cell type, and this metabolite and its related catabolic activity, GSNOR, are both down-regulated under Cd stress. Expand
Localization of Nitric-oxide Synthase in Plant Peroxisomes*
TLDR
The presence of NOS in peroxisomes suggests that these oxidative organelles are a cellular source of nitric oxide (NO) and implies new roles for peroxISomes in the cellular signal transduction mechanisms. Expand
Nitrosative stress in plants
TLDR
It is shown that in olive leaves salinity induces nitrosative stress, and vascular tissues could play an important role in the redistribution of NO‐derived molecules during nitrosatives stress. Expand
Metabolism of reactive nitrogen species in pea plants under abiotic stress conditions.
TLDR
The results obtained suggest that low and high temperature, continuous light and high light intensity are abiotic stress conditions that can induce nitrosative stress in pea plants. Expand
The dehydrogenase-mediated recycling of NADPH is a key antioxidant system against salt-induced oxidative stress in olive plants.
TLDR
Results indicate that in olive plants, salinity causes reactive oxygen species (ROS)-mediated oxidative stress, and plants respond to this situation by inducing different antioxidative enzymes, especially the NADPH-producing dehydrogenases in order to recycle NADPH necessary for the protection against oxidative damages. Expand
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