How does bacterial diversity contribute to ecosystem function?
Bacterial diversity is essential for maintaining the ecological balance in various
environments, including aquatic and terrestrial ecosystems. The diverse microbial
community contributes to various ecosystem processes and functions directly or
indirectly, such as nutrient cycling, biodegradation, and energy flow regulation.
The microbial diversity, especially bacterial, plays an essential role in nutrient
cycling, primarily in the carbon, nitrogen, sulfur, and phosphorus cycles. Bacterial
diversity enables the decomposition of organic matter, acting as decomposers that
facilitate organic matter breakdown into simpler compounds. In nutrient cycling,
bacteria are crucial in converting organic nitrogen in the soil into usable forms such
as ammonium and nitrate through nitrification and denitrification processes. Similarly,
the carbon and sulfur cycles rely on bacteria for the conversion of carbon dioxide
and sulfur-containing compounds into organic compounds.
Additionally, bacterial diversity is crucial in global biogeochemical cycles because
they help to maintain the balance between the different soil components. Bacteria
influence the biogeochemical cycles of many elements such as carbon, nitrogen, and
sulfur in restrictive ways that affect global climate change. The diversity of bacteria
also helps to prevent the spread of diseases and the introduction of new pathogens
that may have profound impacts on the ecosystem.
In conclusion, bacterial diversity plays a crucial role in sustaining ecosystems by
promoting nutrient cycling and regulating energy flow. The diverse microbial
community also helps avoid pathogenic invasion and aids in maintaining overall
ecological balance. Therefore, understanding the link between bacterial diversity and
ecosystem function is essential to promote ecosystem services and achieve
sustainable development.
References:
1. Philippot, L., Raaijmakers, J. M., Lemanceau, P., & van der Putten, W. H. (2013). Going
back to the roots: the microbial ecology of the rhizosphere. Nature Reviews Microbiology,
11(11), 789-799.
2. Singh, J. S., Raghubanshi, A. S., Singh, R. S., & Srivastava, S. C. (1989). Microbial
processes in tropical forest soils. Tropical ecology, 30(1), 33-50.
3. Youssef, N. H., Couger, M. B., & Elshahed, M. S. (2010). Fine-scale bacterial diversity
within a complex ecosystem (Zodletone spring, OK): the role of the rare biosphere. PloS
one, 5(4), e10241.