Strigolactone Signaling Controls Tillering Response to Phosphorus in Oryza sativa
Umehara M, Hanada A, Yoshida S
Summary
PubMedRice uses a hormone signal to count its phosphorus supply and adjust how many shoots it grows accordingly.
chevron_right Technical Details
Key Findings
Low P triggers strigolactone biosynthesis
Strigolactone suppresses tiller buds
Architecture matches nutrient availability
Original Abstract
We demonstrate that low phosphorus triggers strigolactone biosynthesis in rice roots, suppressing tiller bud outgrowth. Mutants deficient in strigolactone perception show uncontrolled tillering under P-limitation, wasting resources. This hormonal mechanism allows rice to match shoot architecture to nutrient availability.
This connects to 6 other discoveries — 1 species, 3 topics, 2 related articles
Species Mentioned
Rice is a cereal grain and in its domesticated form is the staple food of over half of the world's population, particularly in Asia and Africa. Rice is the seed of the grass species Oryza sativa —or, much less commonly, Oryza glaberrima. Asian rice was domesticated in China some 13,500 to 8,200 y...
open_in_new Wikipedia