Apogamous
Definition
Developing through apogamy, pertaining to the formation of a sporophyte directly from a vegetative cell of the gametophyte, without the occurrence of fertilization or gametic fusion; characterized by independent asexual reproduction. This biological phenomenon is frequently found in certain species of pteridophytes (ferns) and angiosperms, ensuring species perpetuation under ecological isolation.
Bilingual Equivalents
- Apogamous
- Apogamic
Grammatical & Source Details
| Inflection Type | Variable adjective adjusting systematically across standard gender and plural structural categories. |
| Formation | Borrowed from French 'apogame', originating from Ancient Greek 'apo-' (away from, without) and 'gamos' (marriage, union). |
| Spelling / Pronunciation | [a.po.ˈɡam] |
| Source | Lexicon of Plant Anatomy, Morphogenesis, and Angiosperm Reproduction Systems |
Contextual Usage Examples
RO: Cercetătorul a observat un embrion apogam format direct dintr-o celulă a protalului acestei ferigi.
EN: The researcher observed an apogamous embryo formed directly from a cell of this fern's prothallus.
RO: Această populație izolată de plante folosește un mecanism apogam pentru a se multiplica în absența polenizatorilor.
EN: This isolated plant population utilizes an apogamous mechanism to multiply in the absence of pollinators.
RO: Analiza citologică a confirmat caracterul pur apogam al generației studiate în laborator.
EN: The cytological analysis confirmed the purely apogamous character of the generation studied in the laboratory.
Idioms & Phrases
Organism apogam / Apogamous organism
RO: Individ vegetal dezvoltat dintr-o structură haploidă fără fuziunea anterioară a nucleilor sexuali masculini și feminini.
EN: A plant individual developed from a haploid structure without the prior fusion of male and female sexual nuclei.
Dezvoltare apogamă / Apogamous development
RO: Proces morfogenetic prin care țesuturile vegetative ale gametofitului dau naștere unui nou sporofit fără stadiul de zigot.
EN: A morphogenetic process whereby the vegetative tissues of the gametophyte give rise to a new sporophyte without the zygote stage.
Mecanism apogam / Apogamous mechanism / apogamous pathway
RO: Cale fiziologică și genetică alternativă de reproducere prin care se evită faza normală a meiozei și singamiei.
EN: An alternative physiological and genetic reproductive pathway whereby the normal phase of meiosis and syngamy is avoided.
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