An abnormal increase in stem elongation, accompanied by poor (if any) leaf development. Physiological etiolation is caused by a lack of chlorophyll, and is typical of plants growing under low light intensity or in complete darkness. It can also be induced by some fungal pathogens.

Glossary of Biotechnology for Food and Agriculture . 2015.

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  • Etiolation — (pronounced /iːtɪəˈleɪʃən/) is a process in flowering plants grown in partial or complete absence of light.[1] It is characterized by long, weak stems; smaller, sparser leaves due to longer internodes; and a pale yellow color (chlorosis). It …   Wikipedia

  • Etiolation — E ti*o*la tion, n. 1. The operation of blanching plants, by excluding the light of the sun; the condition of a blanched plant. [1913 Webster] 2. (Med.) Paleness produced by absence of light, or by disease. Dunglison. [1913 Webster] …   The Collaborative International Dictionary of English

  • etiolation — etiolation. См. этиоляция. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • etiolation — noun 1. a pale and sickly appearance his etiolation signaled years in prison • Derivationally related forms: ↑etiolate • Hypernyms: ↑appearance, ↑visual aspect 2. the act of weakening by stunting the growth or development of something the et …   Useful english dictionary

  • etiolation — noun see etiolate …   New Collegiate Dictionary

  • etiolation — Growth habit adopted by germinating seedlings in the dark. Involves rapid extension of shoot and/or hypocotyl and suppression of chlorophyll formation and leaf growth …   Dictionary of molecular biology

  • etiolation — See etiolate. * * * …   Universalium

  • etiolation — noun Growth process of plants grown in the absence of light, characterized by long, weak stems, fewer leaves and chlorosis …   Wiktionary

  • etiolation — 1. Paleness or pallor resulting from absence of light, as in persons confined because of illness or imprisonment, or in plants bleached by being deprived of light. 2. The process of blanching, bleaching, or making pale by withholding light. [Fr.… …   Medical dictionary

  • etiolation — n. process of whitening a plant by depriving it of sunlight …   English contemporary dictionary

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