| Description | Frankia alni is a gram-positive, filamentous bacterium that exhibits a rod shape, thriving in the mesophilic temperature range of 20-30°C. As an autotroph, this microbe is capable of photosynthesis, relying on carbon dioxide as its primary carbon source for growth. F. alni is classified as a facultative anaerobe, meaning it can survive in both aerobic and anaerobic environments, allowing it to adapt to various habitats.This microbe is most notably associated with actinorhizal plants, particularly the genera Alnus (alders), in which it forms symbiotic relationships. Within the root nodules of these plants, Frankia alni engages in nitrogen fixation, converting atmospheric nitrogen into a form that plants can use for growth. This unique symbiosis not only enhances the growth of the host plant but also contributes significantly to soil fertility, thereby promoting the health of the ecosystem in which it resides. Frankia alni's filamentous structure is a key adaptation for colonizing host tissues and forming complex networks. Its ability to thrive in diverse environments, including nutrient-poor soils and areas with varying moisture levels, underscores its ecological versatility. Moreover, this microbe plays a crucial role in the nitrogen cycle, making it essential for sustainable agriculture and forest ecosystems.F. alni is known for its resilience and ability to produce spores, allowing it to endure unfavorable conditions. Research into this organism has opened avenues for biotechnological applications, particularly in agroforestry and soil improvement, as it can facilitate nitrogen fixation without the need for synthetic fertilizers. |
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