Read by QxMD icon Read

flax and heavy metal

Bouamama Abbar, Abdellah Alem, Anne Pantet, Stéphane Marcotte, Nasre-Dine Ahfir, Davy Duriatti
Natural geotextiles are increasingly used in geotechnical applications such as bank protection and short-term soil reinforcement. This study aimed to highlight the behaviour of natural flax fibre geotextiles towards the retention of suspended particles (SP) present in urban runoff and often polluted. Indeed, it is well known that a large fraction of the heavy metals are often associated with the SP. Long-term filtration tests were performed on four laboratory filter designs. The objective was to study the influence of a nonwoven flax fibre geotextiles on SP transfer through a sandy porous media under saturated conditions...
December 2017: Environmental Technology
Amna, Naeem Ali, Sajid Masood, Tehmeena Mukhtar, Muhammad Aqeel Kamran, Mazhar Rafique, M Farooq Hussain Munis, Hassan Javed Chaudhary
The current study was aimed at analyzing the differential effects of heavy metals (cadmium and chromium) and mycorrhizal fungus; Glomus intraradices on growth, chlorophyll content, proline production, and metal accumulation in flax plant (Linum usitatissimum L.). Heavy metal accumulation rate in flax varied from 90 to 95 % for Cd and 61-84 % for Cr at a concentration range of 250 to 500 ppm for both metals in 24 days of experiment. Growth and photosynthetic activity of flax reduced to an average of 21 and 45 %, respectively...
June 2015: Environmental Monitoring and Assessment
Amna, Sajid Masood, Jabir Hussain Syed, Muhammad Farooq Hussain Munis, Hassan Javed Chaudhary
Plants show enhanced phytoremediation of heavy metal contaminated soils particularly in response to fungal inoculation. Present study was conducted to find out the influence of Nickel (Ni) toxicity on plant biomass, growth, chlorophyll content, proline production and metal accumulation by L. usitatissimum (flax) in the presence of Glomus intraradices. Flax seedlings of both inoculated with G. intraradices and non-inoculated were exposed to different concentrations i.e., 250, 350 and 500 ppm of Ni at different time intervals...
2015: International Journal of Phytoremediation
Matthew E Kaplan, Ellen R Simmons, Jack C Hawkins, Lauren G Ruane, Jeffrey M Carney
BACKGROUND: The soil environment can affect not only the quantity of crops produced but also their nutritional quality. We examined the combined effects of below-ground cadmium (0, 5, and 15 ppm) and mycorrhizal fungi (presence and absence) on the concentration of five major fatty acids within flax seeds (Linum usitatissimum). RESULTS: Plants grown with mycorrhizal fungi produced seeds that contained higher concentrations of unsaturated (18:1, 18:2 and 18:3), but not saturated (16:0 and 18:0) fatty acids...
September 2015: Journal of the Science of Food and Agriculture
Won Park, Yufeng Feng, Sung-Ju Ahn
BACKGROUND: Camelina sativa (L.) Crantz, known by such popular names as "gold-of-pleasure" and "false flax," is an alternative oilseed crop for biofuel production and can be grown in harsh environments. Considerable interest is now being given to the new concept of the development of a fusion plant which can be used as a soil remediation plant for ground contaminated by heavy metals as well as a bioenergy crop. However, knowledge of the transport processes for heavy metals across Camelina plant membranes is still rudimentary...
2014: Biotechnology for Biofuels
Laura M S Hancock, Charlotte L Ernst, Rebecca Charneskie, Lauren G Ruane
PREMISE OF THE STUDY: Agricultural soils have become contaminated with a variety of heavy metals, including cadmium. The degree to which soil contaminants affect plants may depend on symbiotic relationships between plant roots and soil microorganisms. We examined (1) whether mycorrhizal fungi counteract the potentially negative effects of cadmium on the growth and fitness of flax (Linum usitatissimum) and (2) whether mycorrhizal fungi affect the accumulation of cadmium within plant parts...
September 2012: American Journal of Botany
Minori Uchimiya, Desmond I Bannon, Lynda H Wartelle
Long-term effectiveness of biochar for heavy metal stabilization depends upon biochar's sorptive property and recalcitrance in soil. To understand the role of carboxyl functional groups on heavy metal stabilization, cottonseed hull biochar and flax shive steam-activated biochar having a low O/C ratio (0.04-0.06) and high fixed carbon content (~80% dry weight basis) were oxidized using concentrated H(2)SO(4)/HNO(3) and 30% HNO(3). Oxidized and unoxidized biochars were characterized for O/C ratio, total acidity, pH, moisture, ash, volatile matter, and fixed carbon contents, Brunauer-Emmett-Teller surface area, and attenuated total reflectance Fourier transform infrared spectral features...
February 22, 2012: Journal of Agricultural and Food Chemistry
Petr Soudek, Adéla Katrusáková, Lukás Sedlácek, Sárka Petrová, Vladimír Kocí, Petr Marsík, Miroslav Griga, Tomás Vanek
The effect of toxic metals on seed germination was studied in 23 cultivars of flax (Linum usitatissimum L.). Toxicity of cadmium, cobalt, copper, zinc, nickel, lead, chromium, and arsenic at five different concentrations (0.01-1 mM) was tested by standard ecotoxicity test. Root length was measured after 72 h of incubation. Elongation inhibition, EC50 value, slope, and NOEC values were calculated. Results were evaluated by principal component analysis, a multidimensional statistical method. The results showed that heavy-metal toxicity decreased in the following order: As3+>or=As5+>Cu2+>Cd2+>Co2+>Cr6+>Ni2+>Pb2+>Cr3+>Zn2+...
August 2010: Archives of Environmental Contamination and Toxicology
Olfa Douchiche, Azeddine Driouich, Claudine Morvan
BACKGROUND AND AIMS: In flax hypocotyls, cadmium-induced reorientation of growth coincides with marked changes in homogalacturonan (HGA) epitopes that were recognized by JIM7 and JIM5 antibodies in the external tangential wall of the epidermis. In the present study, LM7 and 2F4 monoclonal antibodies were used, in addition to JIM5 and JIM7, to extend the investigation on the methyl-esterification pattern of HGA within various domains of the cortical tissues, including the cortical parenchyma where cell cohesion is crucial...
March 2010: Annals of Botany
Galam Khan, Pauliina Penttinen, Anna Cabanes, Aaron Foxworth, Antonia Chezek, Kristen Mastropole, Bin Yu, Annika Smeds, Teemu Halttunen, Carolyn Good, Sari Mäkelä, Leena Hilakivi-Clarke
Flaxseed contains several dietary components that have been linked to low breast cancer risk; i.e., n-3 polyunsaturated fatty acids (PUFAs), lignans and fiber, but it also contains detectable levels of cadmium, a heavy metal that activates the estrogen receptor (ER). Since estrogenic exposures early in life modify susceptibility to develop breast cancer, we wondered whether maternal dietary intake of 5% or 10% flaxseed during pregnancy or lactation (between postpartum days 5 and 25) might affect 7,12-dimethylbenz[a]anthracene (DMBA)-induced mammary tumorigenesis in the rat offspring...
April 2007: Reproductive Toxicology
Tommaso De Pippo, Carlo Donadio, Doriana Grottola, Micla Pennetta
Analysis of morphological, geological and environmental characteristics of the Fusaro Lagoon has shown the present degraded condition of the lagoon and the perilagoon area. The lagoon developed during the mid-Holocene within a wide marine bay confined between the coastal volcanic structures of Mt. Cuma to the north and Torregaveta to the south in the western part of the Phlegrean Fields. Subsequently, the bay was gradually filled with pyroclastic materials from phlegrean eruptive vents and sediments carried by the rivers Volturno and Clanis, thus, creating an open lagoon...
April 2004: Environment International
A Tsakou, M Roulia, N S Christodoulakis
No abstract text is available yet for this article.
January 2002: Bulletin of Environmental Contamination and Toxicology
M T Togna, J Kazumi, S Apitz, V Kirtay, L Y Young
Mineralization of a readily biodegradable aromatic compound (benzoate) by intrinsic microorganisms in the anoxic sediment was used to quantify the inhibitory effect of heavily contaminated sediment from the Arthur Kill estuary (NY/NJ Harbor system, USA) on the anaerobic metabolism by naturally present bacterial populations. In anoxic microcosms, the effect of varying ratios of contaminated sediment:site water and contaminated sediment:noncontaminated sediment (Flax Pond, Stony Brook, NY, USA) were investigated...
November 2001: Environmental Toxicology and Chemistry
K E Gerhardt, M A Fieldes
Ferguson plots, linear regressions of log(relative mobility) against polyacrylamide gel concentration, provide an electrophoretic method of simultaneously obtaining estimates of net charge and molecular weight for nondenatured proteins, and are a powerful method of accurately comparing these characteristics among isozymes within an enzyme system. Here, Ferguson plots compare the characteristics of the nine isozymes (three cationic and six anionic) usually seen in soluble extracts of flax (Linum usitatissimum) seedling tissues, and of five anionic isozymes induced by heavy metal stress...
July 1999: Electrophoresis
L N Kononko, G I Solomko, N L Emchenko, L V Stakhurskaia, O G Samoĭlenko
Protein concentrates obtained from unconventional plant raw material, namely from the oil cake of tomato seeds, corn germs, flax and safflower hold promise as sources of biologically important components including mineral substances. The protein concentrates are marked by a high content of calcium, magnesium, phosphorus, copper, manganese and zinc. They are also rich in iron that occurs in the form of a protein complex of bivalent iron. The content of heavy metals and nitrates does not exceed quota permissible for foods...
March 1986: Voprosy Pitaniia
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"