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    Deterioration of Antioxidant Competence in Barley Lesion Mimic Mutant 194

    Qunqun Hao1,#, Bo Lyu2,#, Yuhan Tang1,#, Deya Wang1, Yuanyuan Li1, Qingliang Li1, Yuhai Wang1,* and Wenqiang Wang1,*

    Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 109-117, 2019, DOI:10.32604/phyton.2019.06734

    Abstract A barley mutant, 194, was observed to exhibit a leaf spot phenotype over the whole course of its growing period. In this study, the phenotype and antioxidant competence were studied in the lesion mimic mutant 194. Plant height was slightly higher in mutant 194 than in the wild type (WT). In addition, leaf spot per plant in mutant 194 was significantly higher than in WT. Antioxidant competence, as indicated by reactive oxygen species (ROS) accumulation, antioxidant enzyme activity, and the expression of antioxidant enzyme-encoding genes was also assessed in mutant 194. Compared to the WT, mutant 194 displayed a relatively… More >

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