Azotobacter
Definition
A genus of aerobic, motile, oval or spherical bacteria that live freely in the soil and possess the remarkable capacity to fix molecular atmospheric nitrogen directly into organic compounds assimilable by plants, without establishing a symbiotic relationship with their roots; it is widely used in bio-agriculture as a biofertilizer to stimulate soil fertility.
Bilingual Equivalents
- Azotobacter
- Nitrogen-fixing bacterium
Grammatical & Source Details
| Inflection Type | Masculine noun, regular plural 'azotobacteri'. Used also as a scientific genus name (Azotobacter). |
| Formation | Scientific compound built from the chemical root 'azot-' combined with the biological noun 'bacter' (from Greek 'bakterion'). |
| Spelling / Pronunciation | [a.zo.to.ˈbak.ter] |
| Source | Bergey's Manual of Systematic Bacteriology / International Code of Nomenclature of Prokaryotes |
Contextual Usage Examples
RO: Agronomul a inoculat cultura de grâu cu un preparat pe bază de azotobacter pentru a reduce dependența de îngrășămintele chimice.
EN: The agronomist inoculated the wheat crop with an Azotobacter-based preparation to reduce dependency on chemical fertilizers.
RO: Analiza microbiologică a solului a arătat o populație densă de azotobacteri în parcelele cultivate ecologic.
EN: The microbiological analysis of the soil showed a dense population of Azotobacter in the organically cultivated plots.
RO: Specia Azotobacter chroococcum produce o serie de fitohormoni benefici care stimulează alungirea rădăcinilor plantelor.
EN: The species Azotobacter chroococcum produces a series of beneficial phytohormones that stimulate the elongation of plant roots.
Idioms & Phrases
Inoculant cu azotobacter / Azotobacter inoculant
RO: Produs biotehnologic concentrat conținând bacterii vii, utilizat pentru tratarea semințelor înainte de semănat.
EN: A concentrated biotechnological product containing live bacteria, used for treating seeds prior to sowing.
Fixare nesimbiotică cu azotobacter / Non-symbiotic fixation by Azotobacter
RO: Proces fiziologic independent prin care bacteriile captează nitrogenul direct din porii solului fără a forma nodozități pe rădăcini.
EN: An independent physiological process whereby bacteria capture nitrogen directly from soil pores without forming nodules on roots.
Cultura de azotobacter / Azotobacter culture
RO: Mediu nutritiv de laborator optimizat (fără azot) utilizat pentru izolarea și multiplicarea acestor tulpini microbiene.
EN: An optimized laboratory nutrient medium (nitrogen-free) used for isolating and multiplying these microbial strains.
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