Metabolomics and Hormone Level Analysis of Seashore paspalum Dwarf Mutant T51

The use of slow-growing Seashore paspalum dwarf varieties is an effective way to reduce mowing frequency. Here, the differences in metabolism and hormone levels between mutant T51 WT were investigated. Finally, genes associated with phenotype screened combination our previous studies. At metabolic level, 236 differential metabolites identified. Further screening hormone-related found that ABA SA increased significantly, while IAA its intermediate metabolite indolepyruvate decreased significantly. Endogenous content assay showed there was no difference GA BR WT; However, significantly reduced compared WT. results exogenous treatment sensitivity hormones > BR. TAA1, YUCCA, NIT down-regulated at both transcriptional protein levels; CYP79B2 CYP79B3 level but had level. In conclusion, we propose expression NIT, CYP79B2, leads decrease content, which one important reasons for T51; are candidate related dwarf.