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Short Communication Open Access
Phosphorus (P) and iron (Fe) are essential mineral nutrients for plant growth, and deficiencies in these elements alter many developmental programs. Our previous genome-wide co-expression analysis has predicted that protein kinase (PK) plays a key role in the regulation of phosphate (Pi) deficiencyinduced root hair remodeling in Arabidopsis. In this study, the RNA-seq data were re-mined to dissect the potential functions of PKs in Arabidopsis roots under Pi and Fe deficiency. Our results showed that 33 PKs were identified as changed expression at transcript level and a subset of 18 genes was detected with uniquely matched peptides at protein level. Some of the 18 corresponding proteins were found to be also involved in the responses to multiple abiotic stresses. The importance of PKs in the responses to nutritional stress was discussed.
Protein kinases, Arabidopsis, nitrate, Botanical Science, Phytogeography, Plant Morphology