lupinus arcticus/hypoxie

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Response of the ascorbate-glutathione cycle to re-aeration following hypoxia in lupine roots.

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The response of the enzymes and metabolites of the ascorbate-glutathione pathway to oxidative stress caused by re-aeration following hypoxia was studied in roots of hydroponically grown lupine (Lupinus luteus L. cv. Juno) seedlings. Lupine roots were deprived of oxygen by subjecting them to hypoxia

Growth dynamics of mechanically impeded lupin roots: does altered morphology induce hypoxia?

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OBJECTIVE Root axes elongate slowly and swell radially under mechanical impedance. However, temporal and spatial changes to impeded root apices have only been described qualitatively. This paper aims (a) to quantify morphological changes to root apices and (b) assess whether these changes

Regulation of poly(A) RNA retention in the nucleus as a survival strategy of plants during hypoxia.

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Last finding indicates that post-transcriptional processes are significant in low-oxygen conditions, but their nature is poorly understood. Here, we localized poly(A) RNA and mRNA coding proteins involved and not involved with resistance to hypoxia in Lupinus luteus and Arabidopsis thaliana during

Re-aeration-induced oxidative stress and antioxidative defenses in hypoxically pretreated lupine roots.

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The level of free radicals and activities of antioxidative enzymes were examined in roots of lupine seedlings (Lupinus luteus L.) that were deprived of oxygen by subjecting them to root hypoxia for 48 and 72 h and then re-aerated for up to 24 h. Using electron paramagnetic resonance (EPR), we found

Effect of a short-term hypoxic treatment followed by re-aeration on free radicals level and antioxidative enzymes in lupine roots.

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To investigate whether re-aeration after a short-term hypoxic pre-treatment (for 2, 12 or 24 h) induces oxidative stress, the temporal sequence of physiological reactions, including the level of free radicals, hydrogen peroxide production, and changes in antioxidative enzymes, was characterized in

Poly(A) RNAs including coding proteins RNAs occur in plant Cajal bodies.

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The localisation of poly(A) RNA in plant cells containing either reticular (Allium cepa) or chromocentric (Lupinus luteus, Arabidopsis thaliana) nuclei was studied through in situ hybridisation. In both types of nuclei, the amount of poly(A) RNA was much greater in the nucleus than in the cytoplasm.

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