BIOLOGY
SCIENTIFIC REPORTS OF BUKHARA STATE UNIVERSITY 2024/7 (112)
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ability to affect nutrient cycling and soil microbiology. Soil microbial communities are impacted by organic
chemicals released into the soil by decaying plant waste and root exudates.
Additionally, through accelerated organic matter decomposition or allelopathic interactions, Russian
knapweed may change the availability of nutrients in the soil.
Possibility of Phytoremediation of Contaminated Sites: Research has been done on Russian
knapweed's capacity to remove heavy metals from contaminated soils, including cadmium (Cd).
Soils contaminated with Cd may be restored through inoculation with plant growth-promoting
rhizobacteria (PGPR) and arbuscular mycorrhizal fungus (AMF).
Ecological Hazards and Their Mitigation Techniques: The invasive plant known as Russian knapweed
spreads by both rhizomic growth and seed. Reducing soil disturbance and specifically harming Russian
knapweed to increase interspecific plant competition are two possible effective management tactics [16,17].
Discussion.
Russian Knapweed (Acroptilon repens) poses significant environmental challenges due to
its invasive nature, allelopathic effects, and impact on soil health. Its proliferation in various regions outside
its native range has led to ecological imbalances and economic burdens.
The chemical constituents of Acroptilon repens, particularly terpenoids, phenolic compounds, and
alkaloids, play crucial roles in its ecological interactions and potential medicinal properties. These
compounds contribute to its allelopathic effects, antimicrobial activity, and antioxidant properties, suggesting
potential applications in agriculture and pharmacology.
In agricultural contexts, the allelopathic qualities of Russian Knapweed can be harnessed for weed
control, potentially reducing reliance on synthetic pesticides. However, careful management is essential to
prevent unintended consequences on desirable crops and soil health. Integrated pest management strategies
incorporating biological, chemical, and cultural controls offer a holistic approach to mitigate the spread of
Russian Knapweed while minimizing environmental impacts.
Furthermore, research indicates the potential of Acroptilon repens in phytoremediation efforts,
particularly in the removal of heavy metals from contaminated soils. Understanding its interactions with soil
microbiota and nutrient cycling processes is crucial for implementing effective remediation strategies and
minimizing ecological hazards.
