Bulk soil and rhizosphere bacterial community PCR–DGGE profiles and β-galactosidase activity as indicators of biological quality in soils contaminated by heavy metals and cultivated with Silene vulgaris (Moench) Garcke

Martinez-Inigo, M.J.; Pérez‐Sanz, Araceli; Ortíz, Irmene; Alonso, J.; Alarcón, Rafael; García, Pedro González; Lobo, M. C.

doi:10.1016/j.chemosphere.2009.03.014

Cited by 51 publications

(22 citation statements)

References 22 publications

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“…ß-glucosidase activity in the pushout site was only 3.3% compared to the reference control site. Other authors have reported similar decrease in the enzyme activity under increased levels of metal contaminations (Eivazi and Tabatabai, 1990;Martínez-Iñigo et al, 2009). …”

Section: Ureasementioning

confidence: 54%

Effects of Metal and Metalloid Contamination on Microbial Diversity and Activity in Agricultural Soils

Tipayno¹,

Chauhan²,

Woo³

et al. 2011

Korean Journal of Soil Science and Fertilizer

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The continuous increase in the production of metals and their subsequent release into the environment has lead to increased concentration of these elements in agricultural soils. Because microbes are involved in almost every chemical transformations taking place in the soil, considerable attention has been given to assessing their responses to metal contaminants. Short-term and long-term exposures to toxic metals have been shown to reduce microbial diversity, biomass and activities in the soil. Several studies show that microbial parameters like basal respiration, metabolic quotient, and enzymatic activities, including those of oxidoreductases and those involved in the cycle of C, N, P and other elements, exhibit sensitivity to soil metal concentrations. These have been therefore, regarded as good indices for assessing the impact of metal contaminants to the soil. Metal contamination has also been extensively shown to decrease species diversity and cause shifts in microbial community structure. Biochemical and molecular techniques that are currently being employed to detect these changes are continuously challenged by several limiting factors, although showing some degree of sensitivity and efficiency. Variations and inconsistencies in the responses of bioindicators to metal stress in the soil can also be explained by differences in bioavailability of the metal to the microorganisms. This, in turn, is influenced by soil characteristics such as CEC, pH, soil particles and other factors. Therefore, aside from selecting the appropriate techniques to better understand microbial responses to metals, it is also important to understand the prevalent environmental conditions that interplay to bring about observed changes in any given soil parameter.

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Section: Ureasementioning

confidence: 54%

Effects of Metal and Metalloid Contamination on Microbial Diversity and Activity in Agricultural Soils

Tipayno¹,

Chauhan²,

Woo³

et al. 2011

Korean Journal of Soil Science and Fertilizer

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“…Previous studies with the population used in this experiment show its tolerance to mercury (Hg) (Pérez-Sanz et al 2012), As, cadmium (Cd) , and multipolluted spiked soils with chromium (Cr), Cd, zinc (Zn), and lead (Pb) (Pérez-Sanz et al 2007). Other authors also suggested that the effectiveness of S. vulgaris in the revegetation of contaminated soils seemed to result in a reduction of heavy-metal toxicity on soil bacteria (Martinez-Iñigo et al 2009). …”

Section: Introductionmentioning

confidence: 97%

Soil Factors Controlling Arsenic Availability forSilene vulgaris

Pérez‐Sanz¹,

Vázquez

Lobo³

et al. 2013

Communications in Soil Science and Plant Analysis

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The arsenic (As) resistance of Silene vulgaris is studied on two Mediterranean soils, spiked with As and grown under semicontrolled conditions. The results showed that this species accumulates high amounts of As in roots, but both transfer and translocation factors were far from the values found in the As hyperaccumulator species. Arsenic availability in both tested soils is related to soil parameters as follows: Phosphorus (P) > iron oxides > pH. Silene plants studied did not show visual symptoms of As toxicity except for growth reductions at the greater As doses and in the soil with greater P availability; this would indicate the As resistance ability of this plant population.

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“…The rhizosphere zone has been reported as crucial importance for plant health and nutrition [5] and thus rhizosphere microbial processes are important for vegetation development and reestablishment during the process of recovery. Number of researchers have investigated the difference between the microbial communities of RS and BS using phospholipid fatty acid profiles [6,7,8,9] or molecular techniques [10]. The results of these investigations suggested that the differences in rhizosphere microbial community among plant species are largely attributed to the different root exudations.…”

Section: Introductionmentioning

confidence: 99%

Rhizosphere Effects of Melocanna baccifera on Soil Microbial Properties under Different Fallow Phases Following Shifting Cultivation

Hauchhum

Tripathi

2017

IJPSS

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Rhizosphere plays an important role in regulating soil fertility and nutrient cycling in different ecosystems. Bamboos are important secondary successional plants in fallow land that have strong impact on the soil fertility of different fallow lands. The main objectives of the present study is to examined the rhizosphere effects of bamboo (Melocanna baccifera) on soil microbial properties (soil organic carbon, SOC; total nitrogen, TN; microbial biomass C and N, MBC and MBN; dehydrogenase activity, DHA; acid phosphatase activity, APA; β-glucosidase activity, GSA) in rhizosphere (RS) and bulk soil (BS) in shifting cultivation stand with different fallow phase (2 years old, FP-2; 5 years old, FP-5; and 10 years old fallow, FP-10) in Mizoram. The result indicated that soil microbial properties were significantly higher (p<0.05) in RS compared to BS. Further, the level of microbial properties significantly increases in longer fallow (FP-10) compared to shorter fallow (FP-2 and FP-5). On contrary, magnitude of rhizosphere effect of M. baccifera was greater in shorter fallow phase compared to longer fallow phase for all microbial properties except in APA and GSA. It was concluded that the rhizosphere effect of bamboo in shorter fallow is microbial mediated

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Bulk soil and rhizosphere bacterial community PCR–DGGE profiles and β-galactosidase activity as indicators of biological quality in soils contaminated by heavy metals and cultivated with Silene vulgaris (Moench) Garcke

Cited by 51 publications

References 22 publications

Effects of Metal and Metalloid Contamination on Microbial Diversity and Activity in Agricultural Soils

Effects of Metal and Metalloid Contamination on Microbial Diversity and Activity in Agricultural Soils

Soil Factors Controlling Arsenic Availability forSilene vulgaris

Rhizosphere Effects of Melocanna baccifera on Soil Microbial Properties under Different Fallow Phases Following Shifting Cultivation

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