Etiolation
Synonyms
De etiolation
De-etiolation
De-etiolations
Deetiolation
Deetiolations
Etiolations
Physical changes in the growth patterns of a plant brought on by sustained absence of light. These changes are characterized by lengthened internodes which produce long weak stems, fewer leaves, and pale yellow color (chlorosis). The physiological basis for etiolation is induction of the phytohormone, AUXIN.