The accuracy in the assessment of arsenic toxicity using soil alkaline phosphatase depends on soil water contents

Liu, Chaoyang; Tian, Hua; Li, Huayong; Xie, Wei; Wang, Ziquan; Megharaj, Mallavarapu; He, Wenxiang

doi:10.1016/j.ecolind.2019.02.061

Cited by 12 publications

(5 citation statements)

References 41 publications

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“…Shannon diversity was higher in the rhizosphere compared with roots, and beta-diversity showed a clear compartmentalization between the two habitats for all three microbial communities analyzed. Our results agree with previous studies investigating the impact of plant–soil compartments on microbial community diversity and composition ( Bulgarelli et al., 2013 ; Fitzpatrick et al., 2018 ; Kuzyakov and Razavi, 2019 ; Liu et al., 2019 ). Beckers et al.…”

Section: Discussionsupporting

confidence: 93%

“…In contrast, rainfed conditions enhanced alkaline phosphatase activity. Also, Borowik and Wyszkowska (2016) and Liu et al. (2019) have shown that alkaline phosphatase activity is enhanced under lower soil moisture conditions.…”

Section: Discussionmentioning

confidence: 99%

“…In contrast, rainfed conditions enhanced alkaline phosphatase activity. Also, Borowik and Wyszkowska (2016) and Liu et al (2019) have shown that alkaline phosphatase activity is enhanced under lower soil moisture conditions. Guangming et al (2017) reported that phosphatase activity can be positively correlated with soil salinity, which has often been reported to be caused by irrigation (Wang et al, 2015), supporting our observation.…”

Section: Impact Of Agricultural Management Practices On Microbial Act...mentioning

confidence: 99%

“…The understanding of the complex and dynamic interactions between soil habitats such as root (endosphere) and rhizosphere (root surrounding area) and their associated microbiota has significantly improved over the past few decades, notably through molecular ecology approaches, which have considerably expanded the scientific knowledge on soil microbial communities, showing that these two ecological habitats exhibit distinct phylogenetic structures, indicating different microbial populations ( Philippot et al., 2013 ; Fitzpatrick et al., 2018 ; Kuzyakov and Razavi, 2019 ; Liu et al., 2019 ). Microbiome management is a highly promising tool for the sustainable intensification of agricultural systems ( Bakker et al., 2012 ; French et al., 2021 ; Jing et al., 2022 ; Yang et al., 2023 ) and the development of biodiversity-based agriculture ( Duru et al., 2015 ; Struik and Kuyper, 2017 ; Tittonell et al., 2020 ).…”

Section: Introductionmentioning

confidence: 99%

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Impact of conservation tillage on wheat performance and its microbiome

Romano,

Bodenhausen,

Basch

et al. 2023

Front. Plant Sci.

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Winter wheat is an important cereal consumed worldwide. However, current management practices involving chemical fertilizers, irrigation, and intensive tillage may have negative impacts on the environment. Conservation agriculture is often presented as a sustainable alternative to maintain wheat production, favoring the beneficial microbiome. Here, we evaluated the impact of different water regimes (rainfed and irrigated), fertilization levels (half and full fertilization), and tillage practices (occasional tillage and no-tillage) on wheat performance, microbial activity, and rhizosphere- and root-associated microbial communities of four winter wheat genotypes (Antequera, Allez-y, Apache, and Cellule) grown in a field experiment. Wheat performance (i.e., yield, plant nitrogen concentrations, and total nitrogen uptake) was mainly affected by irrigation, fertilization, and genotype, whereas microbial activity (i.e., protease and alkaline phosphatase activities) was affected by irrigation. Amplicon sequencing data revealed that habitat (rhizosphere vs. root) was the main factor shaping microbial communities and confirmed that the selection of endophytic microbial communities takes place thanks to specific plant–microbiome interactions. Among the experimental factors applied, the interaction of irrigation and tillage influenced rhizosphere- and root-associated microbiomes. The findings presented in this work make it possible to link agricultural practices to microbial communities, paving the way for better monitoring of these microorganisms in the context of agroecosystem sustainability.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Impact Of Agricultural Management Practices On Microbial Act...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact of conservation tillage on wheat performance and its microbiome

Romano,

Bodenhausen,

Basch

et al. 2023

Front. Plant Sci.

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“…The ability to detoxify As is important for the survival and functioning of microorganisms in environments with elevated As concentrations such as the studied TPs, since As can be toxic at rather low concentrations (Paez-Espino et al, 2009). Moreover, soil processes such as respiration, microbial biomass as well as functioning of enzymes like alkaline phosphatase are inhibited by As concentrations as low as 40-100 mg As kg DW −1 (Ghosh et al, 2004;Bhattacharyya et al, 2008;Liu et al, 2019), which is much lower than the concentrations that were detected in TP peat (around 200 mg kg DW −1 ). As-tolerating bacteria have been detected and isolated from a variety of As-contaminated soils and can tolerate up to 15 g L −1 As (Villegas-Torres et al, 2011; Escudero et al, 2013;Xiao et al, 2017).…”

Section: Discussionmentioning

confidence: 82%

Abundant and diverse arsenic‐metabolizing microorganisms in peatlands treating arsenic‐contaminated mining wastewaters

Kujala

Besold

Mikkonen

et al. 2020

Environmental Microbiology

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Summary Mining operations produce large quantities of wastewater. At a mine site in Northern Finland, two natural peatlands are used for the treatment of mining‐influenced waters with high concentrations of sulphate and potentially toxic arsenic (As). In the present study, As removal and the involved microbial processes in those treatment peatlands (TPs) were assessed. Arsenic‐metabolizing microorganisms were abundant in peat soil from both TPs (up to 108 cells gdw−1), with arsenate respirers being about 100 times more abundant than arsenite oxidizers. In uninhibited microcosm incubations, supplemented arsenite was oxidized under oxic conditions and supplemented arsenate was reduced under anoxic conditions, while little to no oxidation/reduction was observed in NaN3‐inhibited microcosms, indicating high As‐turnover potential of peat microbes. Formation of thioarsenates was observed in anoxic microcosms. Sequencing of the functional genemarkers aioA (arsenite oxidizers), arrA (arsenate respirers) and arsC (detoxifying arsenate reducers) demonstrated high diversity of the As‐metabolizing microbial community. The microbial community composition differed between the two TPs, which may have affected As removal efficiencies. In the present situation, arsenate reduction is likely the dominant net process and contributes substantially to As removal. Changes in TP usage (e.g. mine closure) with lowered water tables and heightened oxygen availability in peat might lead to re‐oxidation and re‐mobilization of bound arsenite.

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A Combined Remediation Strategy of Arsenic and Cadmium in the Paddy Soil of Polymetallic Mining Areas

Lin

Han

et al. 2021

Bull Environ Contam Toxicol

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The accuracy in the assessment of arsenic toxicity using soil alkaline phosphatase depends on soil water contents

Cited by 12 publications

References 41 publications

Impact of conservation tillage on wheat performance and its microbiome

Impact of conservation tillage on wheat performance and its microbiome

Abundant and diverse arsenic‐metabolizing microorganisms in peatlands treating arsenic‐contaminated mining wastewaters

A Combined Remediation Strategy of Arsenic and Cadmium in the Paddy Soil of Polymetallic Mining Areas

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