摘要
Dear Editor,The ultraviolet （UV）-B wavelength （280-315 nm） is an indispensable component of the sunlight that reaches the earth＇s surface. Long-wavelength and Iow-fluence UV-B specifically induces plant photomorphogenesis, which is characterized by inhibition of hypo- cotyl elongation, promotion of anthocyanin accumulation, and eventually tolerance against UV-B stress （Jenkins, 2009）.
Dear Editor,The ultraviolet （UV）-B wavelength （280-315 nm） is an indispensable component of the sunlight that reaches the earth＇s surface. Long-wavelength and Iow-fluence UV-B specifically induces plant photomorphogenesis, which is characterized by inhibition of hypo- cotyl elongation, promotion of anthocyanin accumulation, and eventually tolerance against UV-B stress （Jenkins, 2009）.
