Phytoremediation of microbial contamination in soil by New Zealand native plants

Gutiérrez-Ginés, María J.; Alizadeh, Houshang; Alderton, Izzie; Ambrose, Vikki; Meister, Alexandra; Robinson, Brett; Halford, Sky; Prosser, J.A.; Horswell, Jacqui

doi:10.1016/j.apsoil.2021.104040

Cited by 6 publications

(4 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast to the results of Prosser et al (2016) and Gutierrez-Gines et al (2021), who found a 90% reduction in E. coli counts in 8 and 14 days under mānuka and 93 and 45 days under pasture, respectively, our experiment indicated there were no significant differences between the two plant covers in E. coli reduction in both, the topsoil and 10-20 cm. E. coli survival and mortality rates in the soil can be influenced by a multitude of factors including physical and chemical soil properties (e.g.…”

Section: E Colicontrasting

confidence: 99%

“…Although the use of plants with antimicrobial properties to reduce the migration of N and pathogens from farming areas into water bodies is still an incipient research line (Gutierrez-Gines et al 2021), there is a wide opportunity worldwide given the large range of plant species with antibacterial activity being investigated (Chassagne et al 2021). According to those authors, Lamiaceae, Fabaceae and Asteraceae are the families with the greatest number of species with known antimicrobial properties.…”

Section: Wider Implications and Future Directionsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of mānuka (Leptospermum scoparium) on nitrogen and Escherichia coli reductions in soils: a field experiment

et al. 2021

Self Cite

View full text Add to dashboard Cite

Purpose Planting strategies can be effective mechanisms to reduce diffuse pollution from agricultural catchments reaching water bodies. Plants with antimicrobial properties such as mānuka (Leptospermum scoparium) demonstrated in controlled conditions the ability to inhibit nitrification and growth of pathogens in soils. This potential in a real on-farm setting was still to be investigated. Methods In a stock-excluded riparian area, planted with mānuka on a dry stock farm, synthetic excrement patches high in urea (950 kg N ha−1 equiv.) and Escherichia coli (7.9 × 109 cfu plant-1) underneath mānuka saplings and pasture were applied. Soil was sampled at three depths over 21 days after the excrement application and analysed for total C and N, inorganic N, pH, soil moisture and E. coli. Results There was no significant difference between the pasture and mānuka for total C and N, C:N ratio, and soil moisture. E. coli was only different between both at 20–30 cm deep. NO3− - N and NH4+ - N concentrations were significantly lower under mānuka compared to pasture for the upper two soil depths (NO3− - N: 109 mg kg−1 vs 205 mg kg−1 in the topsoil). Conclusions The results of this study indicate that mānuka may inhibit urease activity and nitrification and could reduce on-farm nitrate leaching, while also highlighting that field conditions make quantifying such phenomenon more complex.

show abstract

Section: E Colicontrasting

confidence: 99%

Section: Wider Implications and Future Directionsmentioning

confidence: 99%

Effect of mānuka (Leptospermum scoparium) on nitrogen and Escherichia coli reductions in soils: a field experiment

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…In a review study, Rowe and colleagues [51] calculated that the range of throughfall rain in pine canopy was between 50 to 80% of the annual rainfall. In a recent study under Leptospermum scoparium (Myrtaceae) canopy, [52] it was demonstrated that throughfall rain was ~60% less than total rainfall, and it was suggested this was the main reason for the measured lower soil moisture and higher Na soil concentration under mānuka canopy than pasture. Given the proximity of unirrigated pine sampling areas to the irrigated pine and pasture, rain interception is likely to partially explain the increase in Na in the soil.…”

Section: Changes In Soil Chemical Propertiesmentioning

confidence: 99%

Changes in Soil Chemistry and Soil Nutrient Stocks after 30 Years of Treated Municipal Wastewater Land Disposal: A Natural Experiment

Gutiérrez-Ginés,

Robinson,

Halford

et al. 2023

Sustainability

View full text Add to dashboard Cite

The benefits and risks of irrigation with treated municipal wastewater (TMW) on soil quality and crop production have been largely investigated. However, there is a lack of knowledge on the effect of plant species on the interaction between soil quality and TMW. We leveraged a natural experiment investigating the effect of 30 years of TMW irrigation at a rate of 4 m y−1 (eq. 1860 kg N ha−1 y−1, and 264 kg P ha−1 y−1) on a sandy soil under pine plantation and pasture, compared with soil under New Zealand native Kunzea robusta. There was a consistent increase in soil P with irrigation under both pasture (Olsen P in topsoil 40 mg kg−1 vs. 74 mg kg−1) and pine (18 mg kg−1 vs. 87 mg kg−1), which was significant down to 2 m deep. The pH, electrical conductivity, total organic C and N, inorganic N and Na were affected by both irrigation and vegetation type. Beyond P soil accumulation, there was no evidence of soil degradation by Na or trace element accumulation. Estimations of nutrient mass balance indicated that 80% and 60% of the total applied P was lost under pine and pasture, respectively. This percentage increased to 96% and 83% for N, respectively. Although plant species had a significant effect on soil quality and N and P losses from TMW-irrigated areas, adjusting irrigation rates to levels that can be managed by plants is the only way to design sustainable TMW irrigation schemes.

show abstract

“…The authors highlighted that it is important to figure out the source of the contamination by referring to the fields' sources such as irrigation water and soil. Microbial contamination can occur during any steps involved in the production such as planting, harvesting, processing, and packaging 20 .…”

mentioning

confidence: 99%

Microbial Quality of Paddy fields at Alfurat Alawsat Area, Iraq and the Effect of Milling Process on the Rice Contamination Level

2023

View full text Add to dashboard Cite

Fifty-Four paddy samples, 45 soil samples, and nine irrigation water samples of some paddy fields at Alfurat Alawsat Area, Iraq were collected to investigate the microbial quality including total count bacteria (TCB), molds and yeast, total coliform (TC), and E. coli bacteria. Paddy samples were processed at the laboratory level to produce rice at 32 and 36 whiteness, and the microbial quality of the produced rice was conducted too. The results showed that all irrigation water samples were overpassed the FDA limit for E. coli. All paddy samples were exceeded the good limit of TCB, but no sample exceeded the acceptable limit. Most paddy samples were exceeded the FDA limit for molds and yeast, and few paddy samples exceeded the total coliform limit. The milling process reduced microbial levels for some samples, while the effect was undetectable for other samples. Ten rice samples at 32 whiteness and eight rice samples at 36 whiteness out of 13 paddy samples overpassed FDA and Iraqi Quality Standardization (IQS) for molds and yeast. All produced rice at both whiteness levels was exceeded the total coliform of IQS, while only six and three samples out of 13 rice samples at 32 and 36 whiteness respectively overpassed the FDA limit. In conclusion, paddy samples taken from Alfurat Alawsat fields were overpassed some microbial levels from fields without the effect of storage or milling processing. Irrigation water was probably the main source of fields’ contamination, therefore, the paddy fields need to be monitored and controlled in terms of their microbial contamination.

show abstract

Phytoremediation of microbial contamination in soil by New Zealand native plants

Cited by 6 publications

References 50 publications

Effect of mānuka (Leptospermum scoparium) on nitrogen and Escherichia coli reductions in soils: a field experiment

Effect of mānuka (Leptospermum scoparium) on nitrogen and Escherichia coli reductions in soils: a field experiment

Changes in Soil Chemistry and Soil Nutrient Stocks after 30 Years of Treated Municipal Wastewater Land Disposal: A Natural Experiment

Microbial Quality of Paddy fields at Alfurat Alawsat Area, Iraq and the Effect of Milling Process on the Rice Contamination Level

Contact Info

Product

Resources

About