1. JIM MATTSSON ♂
Information acquired: 2025
JIM MATTSSON is an academic who published a paper in 2021 entitled OsARF11 Promotes Growth, Meristem, Seed, and Vein Formation during Rice Plant Development. JIM MATTSSON published this work as part of a team: Sims, Katherine. Here is a description of this work: The plant hormone auxin acts as a mediator providing positional instructions in a range of developmental processes. Studies in Arabidopsis thaliana L. show that auxin acts in large part via activation of Auxin Response Factors (ARFs) that in turn regulate the expression of downstream genes. The rice (Oryza sativa L.) gene OsARF11 is of interest because of its expression in developing rice organs and its high sequence similarity with MONOPTEROS/ARF5, a gene with prominent roles in A. thaliana development. We have assessed the phenotype of homozygous insertion mutants in the OsARF11 gene and found that in relation to wildtype, osarf11 seedlings produced fewer and shorter roots as well as shorter and less wide leaves. Leaves developed fewer veins and larger areoles. Mature osarf11 plants had a reduced root system, fewer bran.
