Reference - Detail
|Author||Günther C, Schlereth A, Udvardi M, Ott T.|
|Title||Metabolism of reactive oxygen species is attenuated in leghemoglobin-deficient nodules of Lotus japonicus.|
|Journal||Mol. Plant Microbe Interact.|
Leghemoglobins together with high rates of respiration are believed to be major sources of reactive oxygen species (ROS) in root nodules of leguminous plants. High capacities of antioxidative systems apparently protect this organ from oxidative damage. Using leghemoglobin-RNA interference (LbRNAi) lines of Lotus japonicus, we found that loss of leghemoglobin results in significantly lower H(2)O(2) levels in nodules. Transcript levels and catalytic activities of ascorbate-glutathione cycle enzymes involved in H(2)O(2) detoxification as well as concentrations of reduced ascorbate were also altered in LbRNAi nodules. Thus, symbiotic leghemoglobins contribute significantly to ROS generation in functional nodules.
|MeSH||Ascorbate Peroxidases Ascorbic Acid / metabolism Glutathione / metabolism Hydrogen Peroxide / metabolism Leghemoglobin / antagonists & inhibitors* Lotus / growth & development Lotus / metabolism* Peroxidases / metabolism RNA Interference RNA, Messenger / metabolism Reactive Oxygen Species / metabolism* Root Nodules, Plant / growth & development Root Nodules, Plant / metabolism*|
|WOS Category||PLANT SCIENCES BIOTECHNOLOGY & APPLIED MICROBIOLOGY BIOCHEMISTRY & MOLECULAR BIOLOGY|
|Lotus / Glycine||Gifu B-129|