Amphitrophy
Definition
A form of unequal growth or development of plant organs, particularly laterally oriented leaves or branches, determined by asymmetric nutrition or the combined action of light and gravity on both sides of the supporting axis. This structural physiological process directly influences the symmetry and spatial arrangement of the canopy.
Bilingual Equivalents
- Amphitrophy
Grammatical & Source Details
| Inflection Type | Feminine noun, standard biological plural variations with vocalic endings. |
| Formation | Derived from Greek combining elements 'amphi' (on both sides) and 'trophe' (nourishment). |
| Spelling / Pronunciation | [am.fi.tro.ˈfi.e] |
| Source | Textbook of Modern Morphogenesis and Plant Physiology |
Contextual Usage Examples
RO: Fenomenul de amfitrofie a fost observat la lăstarii laterali ai arborilor supuși unui flux de lumină direcțional.
EN: The phenomenon of amphitrophy was observed in the lateral shoots of trees subjected to a directional light flow.
RO: O amfitrofie accentuată poate duce la curbarea permanentă a tulpinii din cauza distribuției inegale a sevei.
EN: A pronounced amphitrophy can lead to the permanent bending of the stem due to the unequal distribution of sap.
RO: Cercetătorul a demonstrat că această amfitrofie este strâns legată de concentrația locală de auxine din țesuturi.
EN: The researcher demonstrated that this amphitrophy is closely linked to the local concentration of auxins in the tissues.
Idioms & Phrases
Amfitrofie foliară / Foliar amphitrophy
RO: Dezvoltare asimetrică a limbului frunzei, unde cele două jumătăți delimitate de nervura principală cresc inegal.
EN: Asymmetric development of the leaf blade, where the two halves delimited by the midrib grow unequally.
Indice de amfitrofie / Amphitrophy index
RO: Valoare numerică ce exprimă raportul dintre grosimea țesuturilor hrănite de pe fețele opuse ale unui organ vegetal.
EN: A numerical value expressing the ratio between the thickness of tissues nourished on opposite sides of a plant organ.
Amfitrofie indusă / Induced amphitrophy
RO: Modificare structurală provocată artificial în laborator prin aplicarea asimetrică a îngrășămintelor pe rădăcini.
EN: A structural modification artificially induced in the laboratory by the asymmetric application of fertilizers to the roots.
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