C4 plants respond to phosphate starvation differently than C3 plants.

ABSTRACT: C4 photosynthesis concentrates CO2 around Rubisco, thereby decreasing photorespiration and leading to greater productivity. C4 photosynthesis evolved several times independently in different plant families including monocots and dicots. Besides changes in carbon fixation, C4 plants have also evolved several alterations in nitrogen and sulfur nutrition, leading to better nitrogen use efficiency. Here, we utilized C3 and C4 species from 2 model systems, Flaveria and Panicum, to ask whether the evolution of C4 photosynthesis also affected phosphate homeostasis. The accumulation of phosphate within the plant shifted from the roots to the shoots with the evolution of C4, which can probably be explained by the higher demand of phosphate for completing the C4 cycle. A limitation of carbon assimil

SUBMITTER: Krone R 

PROVIDER: S-EPMC12319147 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature