Mingtang Li's research while affiliated with Jilin Agricultural University and other places

Publications (18)

Article
The toxic effect of Nickel (Ni (II)) on humans and animals has been previously addressed. Owing to the important application of psychrotolerant bacteria in Ni (II) damage remediation in contamination sites at low temperatures, the response mechanism of psychrotolerant bacteria to Ni (II) toxicity must be elucidated. Therefore, the effect of Ni (II)...
Article
Bacillus cereus D2, a psychrotrophic strain, plays an essential role in the restoration of heavy metal-contaminated soils, especially at low temperatures. However, the cold shock response mechanisms of this strain are unclear. In this study, the cold shock response of B. cereus D2 was characterized; as per the Arrhenius curve, 10 °C was chosen as t...
Article
Microbial-induced carbonate precipitation plays an important role in the remediation of heavy metal contaminated soils, but the research on microorganisms that can both induce carbonate precipitation and promote plant growth is insufficient. In this study, a nickel-cadmium-resistant bacterial strain, which can not only produce urease activity to in...
Article
Psychrotolerant bacteria play a particularly important role in the remediation of heavy metal in contamination sites at low temperatures. In the current study, a psychrotolerant Ni-resistant bacterial strain, identified as Bacillus cereus D2, was isolated from a nickel mining area in China. The isolated strain could produce a large amount of urease...
Article
Carbonate mineralization based on urea hydrolysis by bacteria has a significant implication in the remediation of heavy metals polluted environment, but a huge quantity of ammonium released due to the addition of urea may lead to non-point source pollution. In this study, a lead-resistant strain ZN5, identified as Brevibacillus laterosporus, which...
Article
Soil contamination by toxic heavy metals such as copper is a serious problem. In this study, the extracellular polymeric substance (EPS) extracted from Rahnella sp. LRP3 was found with the potential of immobilizing Cu-polluted in soil. The EPS could bond to Cu (II) through functional groups (polysaccharides, amide, proteins, and carboxyl groups), w...
Article
Microbially induced phosphate precipitation (MIPP) is an advanced bioremediation technology to immobilize heavy metals in soil. In this study, an indigenous bacterial strain LRP3, identified as Rahnella sp., was isolated from Cu-contaminated dark brown soil in the mining area. Strain LRP3 could produce phytase and alkaline phosphatase to degrade ph...
Article
Full-text available
Animal wastes are potential sources of natural and steroidal estrogen hormones into the environment. These hormones can be removed by microorganisms with induced enzymes. Two strains of 17β-estradiol-degrading bacteria (LM1 and LY1) were isolated from animal wastes. Based on biochemical characteristics and 16 S rDNA gene sequences, we identified st...
Article
Full-text available
The denitrifying bacterium Acinetobacter johnsonii strain DBP-3 which was capable of removing phosphate, nitrate, and ammoniacal salt is psychrotolerant, whereas, the cold shock response mechanisms or the cold shock proteins (Csps) was unclear. In this article, the optimal growth temperature (25 °C) and cold shock temperature (7.5 °C) were determin...
Article
The significant investigation was performed to establish a chemical baseline for snowfall in Northeast of China since there was no such record. The chemical and mineral composition of snowfall samples were evaluated in Jilin Province, Northeast China. The specific purposes of the present study are to characterize the chemical and mineral compositio...
Article
Returning crop residues into fields, either alone or in combination with inorganic fertilizer, is considered a practical way to enhance soil fertility. Yet, information concerning the effects of crop residues and inorganic fertilizer application on water extractable organic matter (WEOM) in soil is scare. The aim of this study was to examine the 10...
Article
The simulation of Cr(VI) behavior in an unsaturated zone and aquifer, using a 3D experimental set-up were performed to illustrate the distribution, transport and transformation of Cr(VI), and further to reveal the potential harm of Cr(VI) after entering the groundwater. The result indicated that chromium(VI) was transported in the vertical directio...
Article
A bacterium using nitrobenzene (NB) as a sole source of carbon, nitrogen and energy was isolated from NB-contaminated water body by the enrichment technology. It was identified as Pseudomonas NB001 by the phylogenetic analysis based on 16S rDNA sequence and the biochemical and physiological characteristics. Degradation of NB by strain NB001 was con...
Article
The Nramp1/Slc11a1 locus encodes a proton-coupled divalent cation transporter, expressed in late endosomes/lysosomes of macrophages, that constitutes a component of the innate immune response to combat intracellular pathogens and it was shown to play an important role in regulating inherent immunity. The previously identified Z-DNA forming polymorp...
Article
The release of growth hormone (GH) from the pituitary gland is primarily inhibited by somatostatin (SRIF) from the hypothalamus via interactions with five types of SRIF receptors (SSTRs). However, the inhibition mechanism of SRIF on GH has not been fully examined. In this study, we repressed the hypothalamic SRIF in young male mice by stereotaxic i...

Citations

... The date presented in Table 2 also points out that with an increase in the salinity and cadmium concentration in the aquatic systems, biomass production of C. demersum rapidly decreases, because of the combined detrimental effects of salinity and cadmium. Similar reports have been published for some higher plants [51][52][53][54][55][56][57]. Pearson's correlation results support these findings fully ( Table 3). ...
... This phenomenon could be explained by the presence of different phosphate minerals in the solution. The structure and morphology of mineral crystals could affect mineral stability, which leads to these various dissolved capacities (Zhao et al. 2020). However, in all three treatments, the Cu dissolution efficiencies were less than 2.5%, a small amount of Cu was dissolved. ...
... In line with our research, Li et al. (2018) illustrated that application of P. chenduensis loaded oil palm biochar decreased the soluble and exchangeable fraction of Cd by 18 and 30%, respectively. Do et al. (2020) stated that under extreme pollution, the application of microbial inoculum increased the carbonate-bound fraction of metals, resulting in less availability of metals to plants. Li et al. (2013) reported that the application of metal-resistant bacteria could precipitate the water-soluble and exchangeable fraction of Cd, Co, Cu, Ni, Pb, and Zn in carbonate-bound fraction with the removal efficiency of 88-99% from the soil. ...
... According to FTIR results (Fig. 8), after Pb(II) was adsorbed, the positions of carboxyl and phosphate groups on EPS changed or disappeared, indicating that Pb(II) could be combined with carboxyl and phosphate groups. It has been reported that EPS in the process of promoting biomineralization, crystals formed through the control of organic small molecules will join together and form mineral precipitates (Do et al. 2020). Tourney and Bryne (2014) concluded that EPS itself is an acidic electron donor and adsorbs metal cations, thus resulting in local mineral saturation. ...
... soil washing has limited applicability due to its higher cost and harsh treatment methods, while electrokinetic remediation is reported to produce secondary pollutants. Similarly, phytoremediation is a time-consuming process and its efficiency is limited by the seasonal dependence and morphological characteristics of plants (Zhao et al., 2019). Compared to all these techniques, chemical immobilization has emerged as an effective and environmentally friendly method of heavy metal remediation (Ahmad et al., 2016). ...
... First, the strain was grown to log phase in LB, and the supernatant removed after centrifugation (7000 rpm·min −1 , 5 min), washed 3 times with sterile water, and OD 600 adjusted to 2.0, and the bacterial suspension was obtained. The degradation experiment was as described in [58] with minor modifications. The bacterial suspension was added to BSM to degrade E2 under the above conditions, and the best carbon and nitrogen source was selected according to the degradation results. ...
... The ratio of these forms of MMs and its variations are also frequently used informative indicators of different types of pollution sources [13][14][15][16]. In recent studies on snow cover pollution, special attention has been paid to the chemical composition of accumulated particulate matter and the determination of its mass [4,[17][18][19][20][21][22]. ...
... The induction of the cold shock proteins (Csps) is one of the main strategies of psychrophilic and psychrotolerant bacteria that helps them to survive and multiply at low temperatures [91]. The same proteins are synthesized in response to stresses such as starvation. ...
... It is reported high FIX values (~1.8) indicate WEOM derived from microbes, and low FIX values (~1.2) indicate WEOM from terrestrial origin[21]. Yan et al.[48] reported the FIX values between 1.61 and 1.75 for WEOM in a black soil in Northeastern China. These researchers attributed the observations to mixed plant and microbial precursors for the WEOM. ...
... 、土柱试验 [8] 、箱体模 型试验 [9] 和离心试验等 [10] 。张文杰等 [11] 结合批式吸 附和土柱试验,研究了上海表层粉质黏土对 Cr(Ⅵ) 的吸附性能和优先流条件下 Cr(Ⅵ)在地表土中的迁 移规律。研究结果表明,粉质黏土对 Cr(Ⅵ)的吸附 符合 Henry 等温吸附,重金属迁移快慢程度与优先 流和黏土对重金属的吸附量有关。Zhao 等 [9] 采用三 维模型砂箱模拟了 Cr(Ⅵ)在非饱和区和含水层中的 运移。 Xu 等 [12] 研究分析了土壤 pH 对 Cr(Ⅲ)的运移、 形态转化和氧化的影响。上述研究揭示了不同条件 下 Cr(Ⅵ)在土-水介质中的迁移转化规律, 但未获取 Cr(Ⅵ)在土体中的运移参数。此外,吸附试验一般 采用小固液比,测定结果与土柱试验差别较大,不 能准确反映土体对污染物的实际吸附量 [13] ,鲜有研 究采用吸附试验和土柱试验对 Cr(Ⅵ)在粉质黏土中 运移参数进行对比测定。 随着计算机技术的飞速发展,数值模拟已成为 研究地下水污染物迁移转化的重要手段 [14][15][16][17][18] 。 He 等 [19] 采用数值模拟方法研究了某尾矿库中 Cu 2+ 、Zn 2+ 的 迁移及膨润土工程屏障的阻滞,结果表明 5 年后重 金属离子的最大迁移距离达 45 m,0.5 m 厚膨润土 工程屏障对污染物的阻滞效率超过 87%。吕永高 等 [20] 建立了研究区平面二维稳定流数值模型,确定 了污染场地中渗透反应墙的最佳布设位置。目前, 已有研究多采用模型预测铬渣渗滤液迁移的动态及 趋势 [21][22][23] (2)渗透和弥散试验 定,X、Y 方向的渗透系数相同,Z 方向渗透系数取 水平向渗透系数的 1/10 [32] 。体积密度通过室内试验 Table 2 Calculation parameters of medium silty and round gravel aquifer ...