A GENERAL HYPOTHESIS TO INTERPRET ‘HIGH ENERGY PHENOMENA’ OF PHOTOMORPHOGENESIS ON THE BASIS OF PHYTOCHROME

Abstract

Abstract— It is demonstrated that the high energy reaction of photomorphogenesis (blue‐far‐red reaction) in the case of seed germination and hypocotyl lengthening of Lactuca sativa (L.) ‘Grand Rapids' is a consequence solely of phytochrome. A hypothesis is presented in which all high energy phenomena can be explained on the basis of phytochrome.