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https://www.readbyqxmd.com/read/29236185/genome-wide-identification-and-cadmium-induced-expression-profiling-of-sulfate-transporter-sultr-genes-in-sorghum-sorghum-bicolor-l
#1
M Aydın Akbudak, Ertugrul Filiz, Kubra Kontbay
Sulfur is an essential element for all living organisms. Plants can convert inorganic sulfur into organic sulfur compounds by complex enzymatic steps. In this study, we conducted a genome-wide analysis of sulfate transporter genes (SULTRs) in the sorghum (Sorghum bicolor) genome and examined expression profiles of SbSULTR genes under 200 µM cadmium (Cd) exposure. As a result of sorghum genome analysis, 11 SULTR genes were identified, including SbSULTR1;1, SbSULTR1;2, SbSULTR1;3, SbSULTR2;1, SbSULTR2;2, SbSULTR3;1, SbSULTR3;2, SbSULTR3;3, SbSULTR3;4, SbSULTR3;5, and SbSULTR4...
December 13, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29234604/longitudinal-survey-of-lead-cadmium-and-copper-in-seagrass-syringodium-filiforme-from-a-former-bombing-range-vieques-puerto-rico
#2
Elba Díaz, Dustin Pérez, Johanna Delgado Acevedo, Arturo Massol-Deyá
Trace element composition in plant biomass could be used as an indicator of environmental stress, management practices and restoration success. A longitudinal study was conducted to compare Pb, Cd, and Cu content in seagrass Syringodium filiforme collected at a former bombing range in Puerto Rico with those of a Biosphere Reserve under similar geoclimatic conditions. Trace elements were measured by atomic absorption after dry-ashing of samples and extraction with acid. In general, levels of Pb, Cd, and Cu varied during 2001, 2003, 2005-2006, and 2013-2016...
2018: Toxicology Reports
https://www.readbyqxmd.com/read/29230653/environmental-exposure-to-cadmium-a-risk-for-health-of-the-general-population-in-industrialized-countries-and-preventive-strategies
#3
Magdalena Mezynska, Malgorzata M Brzóska
Cadmium (Cd) is a heavy metal belonging to the group of the main chemical pollutants of the natural and occupational environment in economically developed countries. The forecasts indicate that contamination of the environment with this toxic metal, and thus the exposure of the general population, will increase. Food (particularly plant products) is the main source of the general population exposure to this element. Moreover, an important, and often the main, source of intoxication with Cd is habitual tobacco smoking...
December 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29227891/changes-in-metal-mobility-assessed-by-edta-kinetic-extraction-in-three-polluted-soils-after-repeated-phytoremediation-using-a-cadmium-zinc-hyperaccumulator
#4
Zhu Li, Longhua Wu, Yongming Luo, Peter Christie
Phytoextraction is one of the most promising technologies for the decontamination of metal-polluted agricultural soils. Effects of repeated phytoextraction by the cadmium (Cd)/zinc (Zn) hyperaccumulator Sedum plumbizincicola on metal (Cd, Zn, copper (Cu) and lead (Pb)) mobility were investigated in three contaminated soils with contrasting properties. EDTA kinetic extraction and the two first-order reactions model showed advantages in the assessment of soil metal mobility and clearly discriminated changes in metal fractions induced by phytoextraction...
December 5, 2017: Chemosphere
https://www.readbyqxmd.com/read/29211972/reduction-of-cadmium-uptake-in-rice-endophytically-colonized-with-the-cadmium-tolerant-bacterium-cupriavidus-taiwanensis-kku2500-3
#5
Putthita Punjee, Wilailak- Siripornadulsil, Surasak- Siripornadulsil
The effects of the cadmium (Cd)-tolerant bacterium <i>Cupriavidus taiwanensis</i> KKU2500-3 on the growth, yield and Cd concentration in rice grains were investigated in the rice variety Phitsanulok 2 (PL2), which was cultivated in a hydroponic greenhouse. The numbers of Cd-tolerant bacteria isolated from the roots and shoots of plants under the RB [rice with bacteria] and RBC [rice with bacteria and Cd] treatments ranged from 2.60 to 9.03 and 3.99 to 9.60 log CFU•g<sup>-1</sup> of PL2, respectively...
December 6, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/29201916/biochemical-and-genetical-responses-of-phoenix-dactylifera-l-to-cadmium-stress
#6
Fahad Al-Qurainy, Salim Khan, Mohamed Tarroum, Mohammad Nadeem, Saleh Alansi, Aref Alshameri
The cadmium (Cd), a heavy metal, causes toxicity, which leads to hampering the growth and development of the plant. The molecular and biochemical approaches were used for the investigation of antioxidant system response and genotoxicity in date palm (Phoenix dactylifera L.) cv. Sagai in pot experiment having Cd. The root length was more affected than the shoot length as more accumulation of Cd occurs in roots. Fresh weights of root and shoot were reduced significantly in treated plants as compared to the control...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29197797/biochar-application-increased-the-growth-and-yield-and-reduced-cadmium-in-drought-stressed-wheat-grown-in-an-aged-contaminated-soil
#7
Tahir Abbas, Muhammad Rizwan, Shafaqat Ali, Muhammad Adrees, Abid Mahmood, Muhammad Zia-Ur-Rehman, Muhammad Ibrahim, Muhammad Arshad, Muhammad Farooq Qayyum
Cadmium (Cd) and drought stress in plants is a worldwide problem, whereas little is known about the effect of biochar (BC) under combined Cd and drought stress. The current study was conducted to determine the impact of BC on Cd uptake in wheat sown in Cd-contaminated soil under drought stress. Wheat was grown in a soil after incubating the soil for 15 days with three levels of BC (0%, 3.0% and 5.0% w/w). Three levels of drought stress (well-watered, mild drought and severe drought containing 70%, 50%, and 35% of soil water holding capacity respectively) were applied to 45-d-old wheat plants...
November 30, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29197572/diversity-in-cadmium-accumulation-and-resistance-associated-with-various-metallothionein-genes-type-iii-in-phytolacca-americana-l
#8
Chen Yongkun, Zhi Junkai, Li Xiaoyu, Zhang Hao, Liu Huabo, Xu Jichen
Metallothioneins (MTs) are known for their heavy metal deoxidation during phytoremediation. To estimate their roles in the cadmium (Cd) hyperaccumulator Phytolacca americana L., three MT genes, PaMT3-1, PaMT3-2 and PaMT3-3, belonging to the MT3 subfamily were cloned. They separately encoded 63, 65 and 65 amino acids, respectively, containing12, 10 and 11 cysteines, respectively. Each gene was individually transformed and expressed in Escherichia coli cells. A Cd-resistance assay showed that the recombinant strains had enhanced survival rates, especially those containing PaMT3-1 and PaMT3-3...
November 29, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29190113/organic-food-and-the-impact-on-human-health
#9
Sara Hurtado-Barroso, Anna Tresserra-Rimbau, Anna Vallverdú-Queralt, Rosa María Lamuela-Raventós
In the last decade, the production and consumption of organic food have increased steadily worldwide, despite the lower productivity of organic crops. Indeed, the population attributes healthier properties to organic food. Although scientific evidence is still scarce, organic agriculture seems to contribute to maintaining an optimal health status and decreases the risk of developing chronic diseases. This may be due to the higher content of bioactive compounds and lower content of unhealthy substances such as cadmium and synthetic fertilizers and pesticides in organic foods of plant origin compared to conventional agricultural products...
November 30, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29189890/decoding-the-role-of-hypothetical-protein-all3255-of-anabaena-pcc7120-in-heavy-metal-stress-management-in-escherichia-coli
#10
Prashant Kumar Singh, Mengmeng Tang, Sudhir Kumar, Alok Kumar Shrivastava
Cadmium is a non-essential toxic heavy metal for organisms, including plants and cyanobacteria. Cadmium resistance transporters involved in resistance of cells against various toxicants such as drugs and effluxes cytotoxic compounds from cells. However, cadmium resistance-associated protein (CadD) has never been reported from a diazotrophic cyanobacterium Anabaena sp. To test whether the hypothetical protein All3255 of Anabaena sp. PCC7120 a homolog of cadmium resistance-associated protein (CadD) involved in cadmium or heavy metal resistance or not, cloning and heterologous expression analysis of all3255 performed in Escherichia coli BL21 (DE3)...
November 30, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/29188540/responses-of-two-kidney-bean-phaseolus-vulgaris-cultivars-to-the-combined-stress-of-sulfur-deficiency-and-cadmium-toxicity
#11
Dongqin Li, Guikui Chen, Qin Lu, Yongtao Li, Jinjin Wang, Huashou Li
Plants suffer from combined stress of sulfur deficiency and cadmium toxicity in some agricultural lands. However, little is known about the reaction in plants, such as responses in antioxidant enzymes and non-protein thiol compounds, to such combined stress. Therefore, in this study, four treatments, S-sufficiency (TS-Cd), S-deficiency (T-S-Cd), Cd stress (TS+Cd) and combined stress of S-deficiency and Cd stress (T-S+Cd), were set up to investigate (1) the effects of sulfur deficiency or sulfur sufficiency on Cd toxicity to kidney bean cultivar seedlings and the related mechanisms, and (2) the responses of two kidney bean cultivars to combined stress of S-deficiency and Cd-tolerance...
November 29, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29185222/health-risk-evaluation-of-heavy-metals-in-green-land-soils-from-urban-parks-in-urumqi-northwest-china
#12
Zhang Zhaoyong, Yang Xiaodong, Zibibula Simay, Anwar Mohammed
Here, we sampled, tested, and analyzed heavy metals in soil obtained from green land in urban parks of Urumqi. Analysis included soil nutrient contents, particle size distribution, and health risks of heavy metal contaminants. Results showed that (1) organic matter and rapidly available phosphorus contents of all samples ranged from 6.07-58.34 and 6.52-116.15 mg/kg, with average values of 31.26 and 36.24 mg/kg, respectively; (2) silt (particle size 20-200 μm) comprised most of the particle distribution, accounting for 46...
November 28, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29177784/how-tapeworm-infection-and-consumption-of-a-cd-and-zn-hyperaccumulating-plant-may-affect-cu-fe-and-mn-concentrations-in-an-animal-a-plant-consumer-and-tapeworm-host
#13
Ivana Jankovská, Vladislav Sloup, Jiřina Száková, Jan Magdálek, Stanislava Nechybová, Pavla Peřinková, Iva Langrová
This study evaluated the effects of a hyperaccumulator plant (Arabidopsis halleri), containing surplus of cadmium (Cd) and zinc (Zn) and being an admixture to the rat feed, on concentrations of copper (Cu), iron (Fe), and manganese (Mn) in the tissues of experimental rats infected/uninfected with the tapeworm (Hymenolepis diminuta). Male Wistar rats were divided into three groups (00, P0, and PT); the P0 and PT animals were fed a standard mixture for rats (ST-1) supplemented with the plant A. halleri at a weekly Zn and Cd dosage of 123 and 1 mg, respectively...
November 25, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29177694/phytoremediation-of-cadmium-by-native-plants-grown-on-mining-soil
#14
Mahmut Palutoglu, Bunyamin Akgul, Vasily Suyarko, Myroslava Yakovenko, Nataliya Kryuchenko, Ahmet Sasmaz
The Gümüsköy mining area is located about 25 km west of Kutahya and is the largest silver deposit in Turkey. The present study investigated translocation and accumulation of cadmium (Cd) from the soil into 11 native plants. Plant and soil samples were collected from the field, and Cd concentrations were analyzed by inductively coupled plasma mass spectroscopy. Mean Cd values in the soil, root, and shoot of native plants in the study area were 82.8 ± 5, 55.4 ± 6, and 43.5 ± 4 mg kg- 1, respectively...
November 24, 2017: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29175790/in-vitro-antimicrobial-antiprotozoal-activities-and-heavy-metals-toxicity-of-different-parts-of-ballota-pseudodictamnus-l-benth
#15
Najeeb Ullah, Ijaz Ahmad, Nisar Ahmad, - Fozia
The study was done to check the antimicrobial and antiprotozoal activity of different parts of Ballota pseudodictamnus (L.) Benth. These activities were then compared with the heavy metals toxicity of different parts, which plants accumulate in different concentrations in different parts. In in-vitro antileishmanial results ethanolic extract, chloroform and ethyl acetate fractions in roots of Ballota pseudodictamnus (L.) Benth showed antileishmanial activity. The ethanol, n-butanol and ethyl acetate fraction in stem revealed inhibition of amastigote form of leishmania...
November 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29172132/melatonin-pretreatment-improves-vanadium-stress-tolerance-of-watermelon-seedlings-by-reducing-vanadium-concentration-in-the-leaves-and-regulating-melatonin-biosynthesis-and-antioxidant-related-gene-expression
#16
Muhammad Azher Nawaz, Yanyan Jiao, Chen Chen, Fareeha Shireen, Zuhua Zheng, Muhammad Imtiaz, Zhilong Bie, Yuan Huang
Vanadium (V) is an important heavy metal with ubiquitous presence in the Earth's crust, but limited information is available as to its effect on plants and management strategies. Melatonin is a widely studied biomolecule; it acts as an antioxidant and a signaling molecule that enhances the abiotic stress tolerance of plants. Melatonin improves copper, zinc, and cadmium tolerance in plants. In this study, we investigated the response of watermelon seedlings to V stress and the potential role of melatonin in enhancing V stress tolerance of watermelon seedlings...
November 20, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29169130/can-liming-reduce-cadmium-cd-accumulation-in-rice-oryza-sativa-in-slightly-acidic-soils-a-contradictory-dynamic-equilibrium-between-cd-uptake-capacity-of-roots-and-cd-immobilisation-in-soils
#17
Yongjie Yang, Jiangmin Chen, Qina Huang, Shaoqing Tang, Jianlong Wang, Peisong Hu, Guosheng Shao
Cadmium (Cd) accumulation in rice is strongly controlled by liming, but information on the use of liming to control Cd accumulation in rice grown in slightly acidic soils is inconsistent. Here, pot experiments were carried out to investigate the mechanisms of liming on Cd accumulation in two rice varieties focusing on two aspects: available/exchangeable Cd content in soils that were highly responsive to liming, and Cd uptake and transport capacity in the roots of rice in terms of Cd accumulation-relative gene expression...
November 15, 2017: Chemosphere
https://www.readbyqxmd.com/read/29167255/complete-genome-sequences-of-two-plant-associated-pseudomonas-putida-isolates-with-increased-heavy-metal-tolerance
#18
Joseph Nesme, Barbara Cania, Urška Zadel, Anne Schöler, Grażyna A Płaza, Michael Schloter
We report here the complete genome sequences of two Pseudomonas putida isolates recovered from surface-sterilized roots of Sida hermaphrodita The two isolates were characterized by an increased tolerance to zinc, cadmium, and lead. Furthermore, the strains showed typical plant growth-promoting properties, such as the production of indole acetic acid, cellulolytic enzymes, and siderophores.
November 22, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29163592/reciprocal-interactions-between-cadmium-induced-cell-wall-responses-and-oxidative-stress-in-plants
#19
REVIEW
Christophe Loix, Michiel Huybrechts, Jaco Vangronsveld, Marijke Gielen, Els Keunen, Ann Cuypers
Cadmium (Cd) pollution renders many soils across the world unsuited or unsafe for food- or feed-orientated agriculture. The main mechanism of Cd phytotoxicity is the induction of oxidative stress, amongst others through the depletion of glutathione. Oxidative stress can damage lipids, proteins, and nucleic acids, leading to growth inhibition or even cell death. The plant cell has a variety of tools to defend itself against Cd stress. First and foremost, cell walls might prevent Cd from entering and damaging the protoplast...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29157887/spatial-patterns-of-heavy-metal-accumulation-in-sediments-and-macrophytes-of-bellandur-wetland-bangalore
#20
T V Ramachandra, P B Sudarshan, M K Mahesh, S Vinay
Heavy metals are one among the toxic chemicals and accumulation in sediments and plants has been posing serious health impacts. Wetlands aid as kidneys of the landscape and help in remediation through uptake of nutrients, heavy metals and other contaminants. The analyses of macrophytes and sediment samples help in evaluating pollution status in aquatic environment. In this study concentration of six heavy metals (Cadmium (Cd), Chromium (Cr), Copper (Cu), Nickel (Ni), Lead (Pb) and Zinc (Zn)) were assessed in sediment and dominant macrophyte samples collected from Bellandur Lake, largest Lake of Bangalore, India...
November 17, 2017: Journal of Environmental Management
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