Unknown,Transcriptomics,Genomics,Proteomics

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Effects of root-specific activation of plasma membrane H+-ATPase 1 on genome-wide gene expression in A. thaliana roots


ABSTRACT: Plasma membrane (PM) H+-ATPase contributes to nutrient uptake and stomatal opening by creating proton gradient across the membrane. A dominant mutation in the OPEN STOMATA2 locus (OST2-2D) constitutively activates Arabidopsis PM H+-ATPase 1 (AHA1), enlarging proton motive force for root nutrient uptake. However, the stomatal opening is also constitutively enhanced in the ost2-2D, which results in drought hypersensitivity. Therefore, we postulated that the root-specific activation of OST2/AHA1 could be an ideal design for improving nutrient uptake efficiency without causing drought hypersensitivity. Accordingly, we grafted Col-0 (WT) scions onto rootstock originating from WT or ost2-2D and analyzed the vegetative growth, nutrient element content, and transcriptomes of the grafted plants grown under nutrient-rich or -poor conditions.

INSTRUMENT(S): NextSeq 500

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Takushi HACHIYA 

PROVIDER: E-MTAB-11843 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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