ARF is the key factor in auxin signal transduction pathway, which can receive the signals caused by auxin and activate or repress the expression of the backward genes.
ARF是生长素信号转导途径中的关键因子，它可以接受生长素传递的信号，启动或是抑制下游基因的表达。
2
Therefore, phased array weather radar is to form a wider transmitted lobe and receive backward radar signal using multiple narrower beams in order to save radar scanning time.