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We show rising atmospheric CO2 triggers an apoplastic H2O2-dependent biosynthesis of auxin in the apex. Polar auxin transport stimulates the biosynthesis of strigolactone, mycorrhizal symbiosis, and finally phosphate (P) uptake in the roots, especially under P starvation conditions.
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This page is a summary of: A novel
CO
2
‐responsive systemic signaling pathway controlling plant mycorrhizal symbiosis, New Phytologist, May 2019, Wiley,
DOI: 10.1111/nph.15917.
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