Demonstrates growth inhibition linked to decreased cell cycle activity in rps6a-2 mutants, suggesting a role for ribosomal proteins in plant development.
The ribosome, a protein-manufacturing machine, is completed by the assembly of a large number of proteins. In plants, many genes encoding ribosomal proteins are duplicated, and the growth of mutants of one of these genes is frequently inhibited. In this study, I focused on the growth inhibition of a mutant of the ribosomal protein gene, rps6a-2. As cell cycle activity is a factor in growth inhibition, we examined the color reaction of CYCB1;1::GUS, a marker of the cell cycle. The results showed that the length of the root meristematic zone was significantly decreased in rps6a-2 than in the wild type. Based on these results, the mechanism of growth inhibition in ribosomal protein gene mutants is discussed.
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Shugo Maekawa (2024) studied this question.
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