Molecular mechanisms of mineral stress tolerance in plants
Higher plants uptake essential minerals via their roots from soil. Transporters distribute these minerals to each cell. Plant growth is inhibited when the minerals deplete because they are essential for their growth. We have performed quantitative proteomics to find proteins related to Zinc deficient tolerance. Several ZIP transporters and secreted peptides are regulated by transcription factors bZIP19 and bZIP23 (Inaba et al., Plant J. 2015).
Also, to better understand the comprehensive data from iTRAQ analysis, we performed correlation analysis using the cosine correlation coefficients and represented the results on a correlation map, which displays functional relations among identified proteins in a visual manner (Zargar SM et al., Plant Cell Rep., 2015).
Recently, we have a special interest in the molecular mechanisms of peptides in higher plant cells (Nakaminami et al., PNAS, 2018).
Furthermore, excess Zinc also causes growth inhibition, although it is an essential micronutrient. We have revealed some proteins that are tolerant to excess Zinc (Fukao et al., Plant Physiol. 2011; Zargar SM et al., Proteomics, 2015).
