Abstract:The Arabidopsis SHORT AND SWOLLEN ROOT1 (SSR1) gene encodes a mitochondrial TPR domain-containing protein and was previously reported to function in maintaining mitochondria function. In a screen for suppressors of the short-root phenotype of the loss-of-function mutant ssr1-2, two mutations, sus1 and sus2 (suppressor of ssr1-2), were isolated. sus1 and sus2 result from G87D and T55M single amino acid substitution in HSCA2 (At5g09590) and ISU1 (At4g22220), both of which are core components in iron-sulfur clust… Show more
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