Assessment of Changes on Rhizospheric Soil Microbial Biomass, Enzymes Activities and Bacterial Functional Diversity under Nickel Stress in Presence of Alfafa Plants

Helaoui, Sondes; Mkhinini, Marouane; Boughattas, Iteb; Alphonse, Vanessa; Gıusti-Miller, Stéphanie; Livet, Alexandre; Bannı, Mohamed; Bousserrhıne, Noureddine

doi:10.1080/15320383.2020.1771276

Cited by 10 publications

(2 citation statements)

References 92 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further research revealed considerable alterations in bacterial leaf population while root bacteria remained constant. With environmental stress, nickel concentrations were added to agricultural fields growing alfalfa in Tunisia by Helaoui (Helaoui et al 2020). There was a decline in soil enzyme activity.…”

Section: Introductionmentioning

confidence: 99%

Effect of powdery mildew on interleaf microbial communities and leaf antioxidant enzyme systems

Wang

Jiang

2023

J. For. Res.

View full text Add to dashboard Cite

Chinese peony (Paeonia lactiflora Pall.) is both medicinally and aesthetically beneficial. Powdery mildew is a common fungal disease that seriously jeopardizes the value of numerous species, including peonies as a crop. In order to provide a basis for the prevention and treatment of peony powdery mildew, we examined the microbial diversity, the malondialdehyde (MDA) concentrations and antioxidant enzyme activities of peony leaves infected with three levels of powdery mildew to determine any modifications to the leaf's antioxidant enzyme systems and microbial community structure following the onset of disease. The results show that the MDA content rose as the degree of infection became worse. Antioxidant enzyme activity rose and then declined. Following the initiation of powdery mildew, fungal community diversity decreased, whereas there was not any appreciable change in bacterial communities according to microbial diversity sequencing. The relative abundance of more than half of fungal species decreased, with the bacterial genera displaying both abundant and diminished communities with less pronounced alterations in their community structure after the disease spread. Significant different taxa that were critical to the organization of each microbiome were found. Correlation analysis showed that the relative abundance of powdery mildew pathogenic fungal genus Erysiphe was correlated with those of 11 fungal genera and one bacterial genus. Among them, Aureobasidium, Neosetophoma and Sclerostagonospora showed significant positive correlations with Erysiphe and MDA.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of powdery mildew on interleaf microbial communities and leaf antioxidant enzyme systems

Wang

Jiang

2023

J. For. Res.

View full text Add to dashboard Cite

show abstract

“…However, disordered mining in the past caused the accumulation of sand tailings in the old mining area. The mining area is located at the source of the Anning River, and long-term rainwater erosion and flooding cause large losses of rare earth ore and harmful heavy metal components, which ultimately flow into the Anning River basin, causing water contamination and harming water ecological health [1][2][3]. According to preliminary determination and analysis, the rare earth content in the old mining area reaches 30.4 µg/L, and the rare earth content 20 km distant from the mining area reaches 2.3 µg/L.…”

Section: Introductionmentioning

confidence: 99%

Research on the Effects of Rare Earth Combined Contamination on Soil Microbial Diversity and Enzyme Activity

Jiang

Wang

Chen

et al. 2022

Ecological Chemistry and Engineering S

View full text Add to dashboard Cite

Soil microorganisms and soil enzyme activities are important indexes to evaluate soil status. The soil pollution status was evaluated by measuring the physical and chemical properties and heavy metal content of rare earth combined contaminated soil around the Maoniuping old mining area and tailings ponds in different seasons, and measuring the number and diversity of microorganisms and the soil enzyme activities of the arable soil microecology. This research shows that the physical and chemical properties of farmland soil in old mining areas and tailings ponds in different seasons are significantly different, the concentration of rare earth combined contamination in old mines is greater than that in the tailings area, and the changes in the concentration of rare earth combined contamination cause significant changes in soil microecology. Rare earth combined contamination inhibits fungal and bacterial vital activities and promotes the growth of actinomycetes; reduces the sensitivity of sucrase to heavy metal contamination, promotes the activity of phosphatase, and the effect on urease is that of “promotion at low concentration and inhibition at high concentration”; and reduces the community’s ability to use carbon sources and, as a result, the community species are rare and distributed unevenly and the community structure is simple. These results indicate that rare earth combined contamination is potentially harmful to soil microorganisms, which can provide a theoretical basis for the ecological restoration of farmland soil in mining areas.

show abstract

The Effect of Nickel Exposure on Oxidative Stress of Vicia faba Plants

Helaoui

Hattab

Mkhinini

et al. 2022

Bull Environ Contam Toxicol

View full text Add to dashboard Cite

Assessment of Changes on Rhizospheric Soil Microbial Biomass, Enzymes Activities and Bacterial Functional Diversity under Nickel Stress in Presence of Alfafa Plants

Cited by 10 publications

References 92 publications

Effect of powdery mildew on interleaf microbial communities and leaf antioxidant enzyme systems

Effect of powdery mildew on interleaf microbial communities and leaf antioxidant enzyme systems

Research on the Effects of Rare Earth Combined Contamination on Soil Microbial Diversity and Enzyme Activity

The Effect of Nickel Exposure on Oxidative Stress of Vicia faba Plants

Contact Info

Product

Resources

About