genetic-modification
Genetic modification is the targeted alteration of an organism's genome using molecular tools to introduce, remove, or change specific genes. In plant science, it enables researchers to develop crops with enhanced traits such as disease resistance, improved nutritional profiles, and tolerance to environmental stresses. These techniques accelerate what would otherwise take decades of traditional breeding, opening new possibilities for sustainable agriculture and fundamental research into plant biology.
open_in_new WikipediaPubMed · 2026-01-01
Scientists used a soil bacterium to genetically modify roses and potatoes, then studied how the modifications changed plant shape, root growth, and hormone levels. The results reveal that while both plants grew more compact with better rooting ability, the hormonal responses were surprisingly species-specific.
Ri-modified plants consistently grew shorter internodes (50–89% of normal length) and showed up to 2.34× greater root formation compared to unmodified plants.
Cytokinin hormone levels were consistently higher across both rose and potato Ri genotypes, but stress-related hormone responses were species-specific rather than universal.
Contrary to expectations, Ri plants did not show a 'hairy root' appearance, but did have measurably thicker root tips (6–23% larger diameter than wild-type plants).
