Plant growth promotion induced by N-allylglycine

Abstract

N-Allylglycine and choline chloride are known to promote photosynthesis of wheat protoplasts. To clarify whether N-allylglycine promotes plant growth, Arabidopsis thaliana was grown in a medium containing N-allylglycine. Dry weight of Arabidopsis thaliana was increased about 1.2-fold by treatment of N-allylglycine and choline chloride. N-Allylglycine also increased the dry weight of Brassica rapa by about 1.4 times. To examine the mechanism of growth promotion by N-allylglycine, Brassica rapa genes whose expression was altered by treatment with N-allylglycine and choline chloride were examined by RNAseq analysis. The transcriptome analysis revealed that treatment with N-allylglycine and choline chloride commonly up-regulated the expression of genes encoding proteins in the photosystem. These results suggest that the growth promotion by N-allylglycine and choline chloride may be due to the activation of photosystem II.