BnaHSFA2, a heat shock transcription factor interacting with HSP70 and MPK11, enhances freezing tolerance in transgenic rapeseed.

Heat shock transcription factors (Hsfs) play important roles in plant developmental regulations and various abiotic stress responses. However, their evolutionary mechanism of freezing tolerance remains poorly understood. In our previous transcriptomics study based on DNA methylation sequencing, the BnaHsfA2 was found to be significantly accumulated in winter rapeseed (Brassica rapa L.

The Truncated Peptide AtPEP1 Has the Same Function as AtPEP1 in Inhibiting Primary Root Growth and Triggering of ROS Burst.

Currently, the widely used active form of plant elicitor peptide 1 (PEP1) from is composed of 23 amino acids, hereafter AtPEP1, serving as an immune elicitor. The relatively less conserved N-terminal region in AtPEP family indicates that the amino acids in this region may be unrelated to the function and activity of AtPEP peptides. Consequently, we conducted an investigation to determine the necessity of the nonconserved amino acids in AtPEP1 peptide for its functional properties.