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Yuting Chen
Public Documents
1
Enhanced CO2 driven root development coordinates the spatial recruitment of diazotrop...
Junwen Zhao
and 12 more
July 16, 2024
The comprehension of the reciprocal interaction between root development and its co-adapted beneficial microbes in response to elevated CO 2 (eCO 2) will facilitate the identification of nutrient-efficient cultivars for a sustainable agriculture. Here systemically morphological, anatomical, chemical and gene expression assays performed under eCO 2 highlight the divergent root differentiation driven endodermal barrier development with respect to the L-/S-shaped lateral roots under low nitrogen conditions in rice. Next, by metabolome and endodermal-cell specific RNA sequencing we showed that rice adapted to eCO 2 by spatially recruiting diazotrophs through flavonoid secretion in L-shaped lateral roots. To the end, using a rice Casparian strip mutant Oscasp1-1 we validated such root differentiation driven specific recruitment of a diazotrophic family Oxalobacteraceae implicated in plant tolerance to low nitrogen availability. Our work indicates that rice could coordinate nutrient uptake and root differentiation by the recruitment of diazotrophs in L-shaped lateral roots under climate change.