Good bacteria is favoured in natural environments

A recent study has shown that restoring environments to include a wider range of species can promote 鈥榞ood鈥 bacteria over 鈥榖ad鈥 鈥 with potential benefits for human health.

In a produced by the 成人大片, it was found that degraded, low biodiversity land and soils tend to included more 鈥榦pportunistic鈥 bacteria, while healthy, biodiverse ecosystems favour more stable and specialist bacteria.

They found that the bacterial communities more commonly found in degraded landscapes had 鈥減otential pathogenic character鈥, with many in the same genera as prominent disease-causing bacteria Bacillus, Clostridium, Enterobacter, Legionella and Pseudomonas.鈥ㄢ≧estoring a more biodiverse ecosystem, however, changed the bacterial composition towards more potentially immune-boosting microbial diversity.

鈥淭here is a growing body of evidence associating human health with green space around people's homes, and environmental microbes provide a likely connection between a healthy ecosystem and human health,鈥 says lead author, , PhD candidate with the University of 听and听Environment Institute.

鈥淗owever evidence of tangible mechanistic links between human and environmental health is still lacking, although we know that soil microbes are an important part of airborne microbial communities generated from a particular environment.

鈥淲e wanted to see if there were particular bacteria that might be representative of ecological restoration, or the change from degraded state to a more biodiverse, natural state.

鈥濃ㄢ═he researchers analysed soil bacterial communities from a restoration site with a progression of environments from cleared, degraded land to a restored, more biodiverse, natural reference ecosystem. They compared their findings with data from over 200 samples from across Australia which had been assigned as disturbed or natural soils, and found consistent patterns in the proportions of opportunistic versus stable bacteria.

鈥淲hat this work has shown is the potential for reducing airborne pathogens around us by restoring city environments to be more biodiverse and natural,鈥 says senior author Professor Phil Weinstein, Professorial Research Fellow with the School of Biological Sciences.

鈥淲hile we have not shown a direct link between increased abundance of these particular bacteria with increased human disease, more opportunistic bacteria in the environment is likely to bring more exposure to airborne pathogens and higher rates of infections in susceptible individuals. In healthy, biodiverse ecosystems this risk is reduced.鈥濃ㄢ═he researchers say their study also points to a new way of measuring soil and ecosystem health using groups of bacteria as summary biological indicators.

Original post听in News Archives

Co-authors include:






Tagged in Australian Bioactive Compounds Centre, Media Release, News, Publications
Facebook and twitter

Newsletter & social media

Join us for a sensational mix of news, events and research at the Environment Institute. Find out about听new initiatives and听share with your friends what's happening.

听听听