Journal ArticleDOI
Development of antioxidative defense system of wheat seedlings in response to high light
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TLDR
Changes in the activities of enzymes involved in the detoxification of reactive oxygen species in wheat seedlings in response to variations in the light environment were studied and suggest an adaptive response of the plants to higher amounts of active oxygen species generated at higher light intensities.Abstract:
Changes in the activities of enzymes involved in the detoxification of reactive oxygen species in wheat seedlings (Triticum aestivum L.) in response to variations in the light environment were studied. Activities of ascorbate peroxidase, superoxide dismutase, monodehydroascorbate reductase, dehydroascorbate reductase, glutalhione reductase and catalase were much lower in seedlings grown under low-light conditions than in those grown under high-light conditions. Activities of all these enzymes significantly increased within 24 h of transfer of the low-light-grown seedlings to the high-light regime. The results suggest that the increase in enzyme activities was an adaptive response of the plants to higher amounts of active oxygen species generated at higher light intensities. An accumulation of glutathione was also observed, which could also be a part of the defense strategy to meet the increased generation of active oxygen species upon transfer of low-light-grown plants to high-light conditions.read more
Citations
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Dual action of the active oxygen species during plant stress responses.
TL;DR: This review discusses the dual action of AOS during plant stress responses, which was first described in pathogenesis but has also recently been demonstrated during several abiotic stress responses.
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Plant L‐ascorbic acid: chemistry, function, metabolism, bioavailability and effects of processing
Mark W. Davey,M. Van Montagu,Dirk Inzé,Maite Sanmartín,Angelos K. Kanellis,Nicholas Smirnoff,I. J. J. Benzie,John (Sean) J. Strain,D. Favell,J. Fletcher +9 more
TL;DR: The role of L-AA in metabolism and the latest studies regarding its bio- synthesis, tissue compartmentalisation, turnover and catabolism are focused on, as well as the potential to improve the L- AA content of crops.
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Energy dissipation and radical scavenging by the plant phenylpropanoid pathway.
Stephen C. Grace,Barry A. Logan +1 more
TL;DR: A novel antioxidant function for the taxonomically widespread phenylpropanoid metabolite chlorogenic acid (CGA; 5-O-caffeoylquinic acid) is highlighted and its possible role in abiotic stress tolerance is assessed.
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Effects of light quality on the accumulation of phytochemicals in vegetables produced in controlled environments: a review
TL;DR: In this review, the effects of light quality regulation on phytochemical accumulation in vegetables produced in controlled environments are identified, highlighting the research progress and advantages of LED technology as a light environment regulation tool for modifying phytochemicals in vegetables.
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Alterations in the antioxidative system of suspension‐cultured soybean cells (Glycine max) induced by oxidative stress
TL;DR: In this paper, the changes of antioxidative key enzyme activities under stress conditions induced by a peroxidizing herbicide using photoheterotrophi-cally grown, suspension-cultured soybean celts (Glycine max L.).
References
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