Selenium promotes sulfur accumulation and plant growth in wheat (Triticum aestivum)

• DOI: 10.1111/ppl.12465
• Publication Date: 2016-05-06T15:56:59Z
• Authors: Paulo F. Boldrin; Marislaine A. de ...; Yong Yang; Hongmei Luo; Shree Giri; Jonathan J. Hart; Valdemar Faquin; Luiz R.G. Guilherme; Theorodore W. Tha...; Li Li
• Keywords: Selenate; Biofortification; APX; Plant Physiology

Selenium (Se) is an essential micronutrient for animals and humans a target biofortification in crops. Sulfur (S) crucial nutrient plant growth. To gain better understanding of Se S nutrition interaction plants, the effects dosages forms on growth as well level seven wheat lines were examined. Low both selenate selenite supplements found to enhance shoot biomass show no inhibitory effect grain production. The stimulation was correlated with increased APX antioxidant enzyme activity. exert different metabolism plants. Selenate treatment promoted accumulation, which not observed supplement. An over threefold increase levels following at low shoots all lines. Analysis sulfate transporter gene expression revealed transcription SULTR1;1, SULTR1;3 SULTR4;1 roots 10 μM Na2 SeO4 treatment. Mass spectrometry-based targeted protein quantification confirmed results showed enhanced levels. suggest that mimics deficiency activate specific stimulate uptake, resulting selenate-induced accumulation. This study supports benefit from fertilization provides information basis underlying Se-induced accumulation