Anatropous
Definition
Regarding plant ovules: completely inverted or turned upside down by 180 degrees during its structural development. In this biological position characteristic of most angiosperms, the micropyle is directed downward, brought close to the hilum, while the chalaza is positioned at the opposite end, connected to the base by the raphe.
Bilingual Equivalents
- Anatropous
- Anatropal
Grammatical & Source Details
| Inflection Type | Variable adjective with standard masculine, feminine, and structural plural variations. |
| Formation | Borrowed from French (anatrope), originating from the Greek words 'ana-' (backwards) and 'trepein' (to turn). |
| Spelling / Pronunciation | [a.na.ˈtrop] |
| Source | Glossary of Plant Anatomy and Plant Reproductive Biology |
Contextual Usage Examples
RO: La examinarea la microscop, studentul a observat clar un ovul anatrop în ovarul florii de mazăre.
EN: Upon microscopic examination, the student clearly observed an anatropous ovule in the ovary of the pea flower.
RO: Poziția de tip anatrop a ovulului facilitează pătrunderea rapidă a tubului polinic prin deschiderea micropilului.
EN: The anatropous position of the ovule facilitates the rapid penetration of the pollen tube through the micropyle opening.
RO: Această familie de plante se caracterizează structural prin prezența exclusivă de ovule cu dezvoltare anatropă.
EN: This plant family is structurally characterized by the exclusive presence of ovules with anatropous development.
Idioms & Phrases
Ovul anatrop / Anatropous ovule
RO: Cea mai răspândită structură a ovulului la plantele cu flori, fiind curbat în jos de-a lungul funiculului.
EN: The most common ovule structure in flowering plants, being curved downward along the stalk or funiculus.
Dezvoltare anatropă / Anatropous development
RO: Proces biologic de curbare progresivă a țesuturilor ovulului în faza timpurie de formare a florii.
EN: The biological process of progressive curvature of the ovule tissues during the early phase of flower formation.
Poziție anatropă / Anatropous position
RO: Orientare spațială specifică în care sacul embrionar este inversat, optimizând procesul structural de fertilizare.
EN: A specific spatial orientation where the embryo sac is inverted, optimizing the structural process of fertilization.
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