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THE INFLUENCE OF LIGHT OF DIFFERENT SPECTRAL REGIONS ON THE SYNTHESIS OF PHENOLIC COMPOUNDS IN GHERKIN SEEDLINGS, IN RELATION TO PHOTOMORPHOGENESIS IV. MECHANISM OF FAR‐RED ACTION
Author(s) -
Engelsma G.
Publication year - 1968
Publication title -
acta botanica neerlandica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 0044-5983
DOI - 10.1111/j.1438-8677.1968.tb00107.x
Subject(s) - photomorphogenesis , far red , chemistry , botany , red light , biology , biochemistry , gene , arabidopsis , mutant
SUMMARY It is shown that for an irradiation program of far red – darkness – far red the length of the lag‐phases for respectively synthesis of hydroxycinnamic acids and induction of phenylalanine deaminase subsequent to the onset of the first and the second irradiation are of the same order of magnitude. This finding is discussed in relation to different hypotheses for the mechanism of far‐red action in photomorphogenesis.