Auxin
Definition
A plant hormone (phytohormone) secreted by the apical meristematic tissues of plants, possessing the fundamental property of stimulating cell elongation, root initiation, fruit development, and the orientation of plant tropisms; indole-3-acetic acid is the most common natural representative of this class.
Bilingual Equivalents
- Auxin
- Plant growth hormone
Grammatical & Source Details
| Inflection Type | Feminine noun, regular structural plural variations and genitive-dative endings. |
| Formation | Scientific term borrowed from French ('auxine'), derived from the Greek verb 'auxein' (to grow). |
| Spelling / Pronunciation | [ˈɔːk.sɪn] |
| Source | Raven Biology of Plants and Botanical Nomenclature Standards |
Contextual Usage Examples
RO: Concentrația de auxină din vârful tulpinii migrează spre zona umbrită, determinând curbarea plantei către lumină.
EN: The auxin concentration at the stem tip migrates toward the shaded side, causing the plant to bend toward the light.
RO: Grădinarii folosesc un gel special pe bază de auxină sintetică pentru a stimula înrădăcinarea rapidă a butașilor.
EN: Gardeners use a special gel based on synthetic auxin to stimulate the rapid rooting of cuttings.
RO: O cantitate prea mare de auxină poate bloca dezvoltarea normală a mugurilor laterali ai arbustului.
EN: Too high an amount of auxin can block the normal development of the shrub's lateral buds.
Idioms & Phrases
Auxină de sinteză / Synthetic auxin
RO: Compus chimic artificial (cum ar fi acidul naftilacetic) utilizat în agricultură ca regulator de creștere sau erbicid.
EN: An artificial chemical compound (such as naphthaleneacetic acid) used in agriculture as a growth regulator or herbicide.
Transport de auxină / Auxin transport / polar auxin transport
RO: Proces fiziologic direcționat prin care hormonul se deplasează de la vârful plantei spre bază prin celulele parenchimatice.
EN: A directed physiological process whereby the hormone moves from the plant apex toward the base through parenchymal cells.
Efect de auxină / Auxin effect / response
RO: Modificare celulară macroscopică ce constă în slăbirea pereților celulari și pătrunderea apei, ducând la alungire.
EN: A macroscopic cellular modification consisting of the loosening of cell walls and water uptake, leading to elongation.
Latest Contextual News
No recent news found for this topic.