Impact of soil salinity on arbuscular mycorrhizal fungi biodiversity and microflora biomass associated with Tamarix articulata Vahll rhizosphere in arid and semi-arid Algerian areas

Bencherif, Karima; Boutekrabt, A.; Fontaine, Joël; Laruelle, Frédéric; Dalpé, Yolande; Sahraoui, Anissa Lounès-Hadj

doi:10.1016/j.scitotenv.2015.07.007

Cited by 88 publications

(49 citation statements)

References 49 publications

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“…Based on the few studies conducted, relatively high levels of water salinization (greater than 500 mg l 21 TDS) may have lethal or sub-lethal detrimental effects on fungi [ could alter diversity and function in currently unpredictable ways [41,81]. Rising salinity can increase fungal sporulation supporting the hypothesis that fungi allocate more energy to reproduction in the presence of some salts, in this case HCO À 3 [82]. Conversely, rising salinity from NaCl may also induce fungal sporulation for some species and a decline in extracellular cellulolytic activity in others [41,83].…”

Section: Predicted Detrital Alterations From Salinizationmentioning

confidence: 95%

Multiple riparian–stream connections are predicted to change in response to salinization

Entrekin

Clay

Mogilevski

et al. 2018

Phil. Trans. R. Soc. B

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One contribution of 23 to a theme issue 'Salt in freshwaters: causes, ecological consequences and future prospects'.Secondary freshwater salinization, a common anthropogenic alteration, has detrimental, lethal and sub-lethal effects on aquatic biota. Ions from secondary salinization can become toxic to terrestrial and aquatic organisms when exposed to salinized runoff that causes periodic high-concentration pulses. Gradual, low-level (less than 1000 ppm salinity) increases in salt concentrations are also commonly documented in regions with urbanization, agriculture, drilling and mining. Despite widespread low-level salt increases, little is known about the biological and ecological consequences in coupled riparian-stream systems. Recent research indicates lethal and even sub-lethal levels of ions can subsidize or stress microbial decomposer and macroinvertebrate detritivores that could lead to alterations of three riparian-stream pathways: (i) salinized runoff that changes microbial decomposer and macroinvertebrate detritivore and algae performance leading to changes in composition and processing of detrital pools; (ii) riparian plant salt uptake and altered litter chemistry, and litterfall for riparian and aquatic detritivores and their subsequent enrichment, stimulating decomposition rates and production of dissolved and fine organic matter; and (iii) salt consumption in salinized soils could increase riparian detritivore growth, decomposition and dissolved organic matter production. Subsidy-stress and reciprocal flows in coupled riparian-stream connections provide frameworks to identify the extent and magnitude of changes in detrital processing from salinization.This article is part of the theme issue 'Salt in freshwaters: causes, ecological consequences and future prospects'.

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Section: Predicted Detrital Alterations From Salinizationmentioning

confidence: 95%

Multiple riparian–stream connections are predicted to change in response to salinization

Entrekin

Clay

Mogilevski

et al. 2018

Phil. Trans. R. Soc. B

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“…Anthropogenic activities, such as phosphorus fertiliser treatment, may introduce the highly toxic heavy metal cadmium (e.g. 300 mg Cd / kg P) into the environment, while irrigation with contaminated water may introduce cadmium or salt (Jiao et al, 2012, Khairy et al, 2014, Roberts, 2014, Bencherif et al, 2015). Both cadmium toxicity and soil salinization cause a dramatic increase in cellular levels of highly destructive reactive oxygen species (ROS) as well as inhibiting the activities of ROS scavenging enzymes in microbes (Tanaka et al, 2006, Achard-Joris et al, 2007, Hossain et al, 2012), thus decreasing crop yield.…”

Section: Introductionmentioning

confidence: 99%

“…Both cadmium toxicity and soil salinization cause a dramatic increase in cellular levels of highly destructive reactive oxygen species (ROS) as well as inhibiting the activities of ROS scavenging enzymes in microbes (Tanaka et al, 2006, Achard-Joris et al, 2007, Hossain et al, 2012), thus decreasing crop yield. Globally, up to 2 million hectares of agricultural land are negatively impacted by salinization each year (Bencherif et al, 2015, Ke et al, 2017). Alterations to the soil microbial community can have important repercussions in agricultural settings, where microbes (both soil bacteria and fungi) are critical drivers of soil health and agricultural crop productivity (Mau et al, 2019, Zhang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Bacterial and fungal communities are differentially modified by melatonin in agricultural soils under abiotic stress

Madigan

Egidi

Bedon

et al. 2019

Preprint

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An extensive body of evidence from this last decade indicates that melatonin enhances plant resistance to several biotic and abiotic stressors. This has led to an interest in the use of melatonin in agriculture to reduce negative physiological effects from environmental stresses that affect yield and crop quality. However, there are no reports regarding the effects of melatonin on soil microbial communities under abiotic stress, despite the importance of microbes for plant root health and function. Three agricultural soils associated with different land usage histories (pasture, canola or wheat) were placed under abiotic stress by cadmium (100 or 280 mg/kg) or salt (4 or 7 g/kg) and treated with melatonin (0.2 and 4 mg/kg). Automated Ribosomal Intergenic Spacer Analysis (ARISA) was used to generate Operational Taxonomic Units (OTU) for microbial community analysis in each soil. Significant differences in richness (α diversity) and community structures (β diversity) were observed between bacterial and fungal assemblages across all three soils, demonstrating the effect of melatonin on soil microbial communities under abiotic stress. The analysis also indicated that the microbial response to melatonin is governed by the type of soil and history. The effects of melatonin on soil microbes needs to be regarded in potential future agricultural applications.

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“…The arbuscular mycorrhizal fungi (AMF) root colonization varies according to plant species, fungal and bacterial communities as well as soil environmental and plant physiological conditions (Smith and Read, 2008). Recent study showed that T. articultata is naturally associated with AMF (Bencherif et al, 2015). Beauchamp et al (2005) found that AMF root colonization of the introduced T. ramosissima was very low.…”

Section: Introductionmentioning

confidence: 99%

Soil and seasons affect arbuscular mycorrhizal fungi associated with Tamarix rhizosphere in arid and semi-arid steppes

Bencherif

Boutekrabt

Dalpé

et al. 2016

Applied Soil Ecology

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Impact of soil salinity on arbuscular mycorrhizal fungi biodiversity and microflora biomass associated with Tamarix articulata Vahll rhizosphere in arid and semi-arid Algerian areas

Cited by 88 publications

References 49 publications

Multiple riparian–stream connections are predicted to change in response to salinization

Multiple riparian–stream connections are predicted to change in response to salinization

Bacterial and fungal communities are differentially modified by melatonin in agricultural soils under abiotic stress

Soil and seasons affect arbuscular mycorrhizal fungi associated with Tamarix rhizosphere in arid and semi-arid steppes

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