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Journal articles on the topic 'Cockle response to heavy metal'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Nguyen, Tuan Anh, Tan Phat Le, and Thanh Khoa Phung. "Removal of Cadmium Ions from Aqueous Solutions Using Acid-Activated Cockle Shell Powder." Materials Science Forum 987 (April 2020): 129–34. http://dx.doi.org/10.4028/www.scientific.net/msf.987.129.

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In Vietnam, heavy metal removal from aqueous solution has been the subject of great attention in the last few years. There are several methods have been developed to reduce heavy metal pollution problems and adsorption technique has been widely used due to the versatility and effectiveness. Cockles are marine bivalve mollusks, whose shell are discharged as wastes by many marine product manufacturers and restaurants. Cockle shell can be economically used as adsorbent for the wastewater treatment. In this study, acid-activated cockle shell was used as an adsorbent material for divalent cadmium ion removal from waste water. The experiments in this work used batch mode adsorption. Experiments were designed by response surface methodology (RSM) and a quadratic model was used to predict the removal efficiency of cadmium. The input to the model was varied as initial cadmium ion concentration from 600 to 1000 mg/L, contact time from 30 to 90 minutes, adsorbent dosage from 0.5 g/L to 1.5 g/L. Analysis of variance was incorporated to judge the adequacy of the models. The predictions of the model were in good agreement with experimental results and the optimal condition is then estimated from the model. Other properties of obtained materials were also investigated using XRD, BET, TGA, SEM analysis methods. The results show that the simple acid-activated cockle shell can be used as a low cost and effective adsorbent for cadmium ion removal.

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2

Islam, Mohammad Nazrul, Golam Taki, Xuan Phuc Nguyen, Young-Tae Jo, Jun Kim, and Jeong-Hun Park. "Heavy metal stabilization in contaminated soil by treatment with calcined cockle shell." Environmental Science and Pollution Research 24, no. 8 (January 17, 2017): 7177–83. http://dx.doi.org/10.1007/s11356-016-8330-5.

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3

Sudarmawan, Wisnu Satriyo, Jusup Suprijanto, and Ita Riniatsih. "Abu Cangkang Kerang Anadara granosa, Linnaeus 1758 (Bivalvia: Arcidae) sebagai Adsorben Logam Berat dalam Air Laut." Journal of Marine Research 9, no. 3 (July 16, 2020): 237–44. http://dx.doi.org/10.14710/jmr.v9i3.26539.

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Kerang Darah merupakan komoditi ekonomis yang tersebar di seluruh wilayah perairan Indonesia, salah satunya adalah Perairan Demak. Adanya permintaan yang tinggi pada daerah demak dari hasil survey DKP Kabupaten Demak pada tahun 2018 dapat menimbulkan terjadinya limbah cangkang yang cukup banyak. Melalui pendekatan teknologi yang tepat, limbah cangkang kerang tersebut dapat diolah menjadi abu cangkang. Berdasarkan komposisi senyawa kimia abu cangkang mengandung CaO cukup tinggi sehingga abu cangkang berpotensi untuk menjerap logam berat. Materi yang digunakan dalam penelitian adalah abu cangkang hasil olahan dari limbah cangkang sisa produksi kerang darah. Metode eksperimental laboratoris dilakukandalam penelitian yaitu dengan mengontakkan secara langsung logam dan abu cangkang kerang dara (Anadara granosa) dengan pengaruh variasi jenis logam berat dengan analisis spektroskopi serapan atom (SSA). Penyerapan yang optimal terjadi pada logam berat Mangan (Mn) konsentrasi awal 0,103 mg/L menjadi <0,001 dan kontak waktu 24 jam daya serap sebesar 100%. Dapat disimpulkan bahwa pada abu cangkang cukup baik dalam penyerapan logam berat Besi (Fe), Mangan (Mn), Seng (Zn) di air laut perairan Morosari Demak karena dalam proses menghilangkan logam berat dengan struktur CaO disebut pertukaran ion dipengaruhi oleh beberapa faktor jenis adsorben yang digunakan, luas permukaan adsorben, dan konsentrasi zat yang di penjerapan. Blood cockle are economic commodities that are spread throughout the territorial waters of Indonesia, one of which is the Demak waters. The high demand in the Demak area from the results of DKP survey in 2018 can causing a lot of cockle shell waste. Through the right technological approach, the waste is processed into blood cockle shell ash. Based on the chemical composition of shell ash containing CaO in the shell is high enough so the ash has potential to absorb heavy metals. The material used is the blood cockle shell ash that processed from waste shell from the production of blood cockle. The experimental laboratory method was carried out in this research, by directly contacting metal and blood cockle shell ash (Anadara granosa) with the influence of variations in heavy metal types by atomic absorption spectroscopy (AAS) analysis. Optimal absorption occurs in the heavy metal Manganese (Mn) initial concentration of 0.103 mg / L to <0.001 and 24-hour contact time absorption of 100%. It can be concluded that the shell of the product itself has not been efficient in carrying out all the absorption of heavy metals in the sea water samples of Morosari Demak waters because in the process of removing heavy metals with CaO structures is influenced by the type of adsorbent used, the surface area of the adsorbent, and the concentration of in absorption.

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4

Kivnick, Helen Q. "Response: Heavy metal kids arekids." Child & Youth Care Forum 21, no. 1 (February 1992): 33–35. http://dx.doi.org/10.1007/bf00757345.

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5

Batley, GE. "Heavy metal speciation in waters, sediments and biota from Lake Macquarie, New South Wales." Marine and Freshwater Research 38, no. 5 (1987): 591. http://dx.doi.org/10.1071/mf9870591.

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The distribution and bioavailability of heavy metals in waters and sediments from Lake Macquarie (N.S.W.) have been examined. Elevated concentrations of zinc, lead, cadmium and copper detected in surface sediments and waters from the northern end of the lake are attributable to discharges from a lead-zinc smelter on Cockle Creek. The majority of the metals are in bioavailable forms and are shown to be accumulated in seagrasses, seaweeds and bivalves. Calculations indicate that, at the current rates of discharge, the concentrations of bioavailable metals in newly-deposited sediments should not be deleterious. Elutriate tests showed that there will be no significant mobilization of metals during dredging operations to remove the contaminated sediments.

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6

Hinojosa, M. Belén, José A. Carreira, Roberto García-Ruíz, and Richard P. Dick. "Microbial Response to Heavy Metal-Polluted Soils." Journal of Environmental Quality 34, no. 5 (September 2005): 1789–800. http://dx.doi.org/10.2134/jeq2004.0470.

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7

Yen, James L., Ning-Yuan Su, and Peter Kaiser. "The Yeast Ubiquitin Ligase SCFMet30Regulates Heavy Metal Response." Molecular Biology of the Cell 16, no. 4 (April 2005): 1872–82. http://dx.doi.org/10.1091/mbc.e04-12-1130.

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Cells have developed a variety of mechanisms to respond to heavy metal exposure. Here, we show that the yeast ubiquitin ligase SCFMet30plays a central role in the response to two of the most toxic environmental heavy metal contaminants, namely, cadmium and arsenic. SCFMet30inactivates the transcription factor Met4 by proteolysis-independent polyubiquitination. Exposure of yeast cells to heavy metals led to activation of Met4 as indicated by a complete loss of ubiquitinated Met4 species. The association of Met30 with Skp1 but not with its substrate Met4 was inhibited in cells treated with cadmium. Cadmium-activated Met4 induced glutathione biosynthesis as well as genes involved in sulfuramino acid synthesis. Met4 activation was important for the cellular response to cadmium because mutations in various components of the Met4-transcription complex were hypersensitive to cadmium. In addition, cell cycle analyses revealed that cadmium induced a delay in the transition from G1to S phase of the cell cycle and slow progression through S phase. Both cadmium and arsenic induced phosphorylation of the cell cycle checkpoint protein Rad53. Genetic analyses demonstrated a complex effect of cadmium on cell cycle regulation that might be important to safeguard cellular and genetic integrity when cells are exposed to heavy metals.

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8

Murata, Mie, Pengfei Gong, Kaoru Suzuki, and Shinji Koizumi. "Differential metal response and regulation of human heavy metal-inducible genes." Journal of Cellular Physiology 180, no. 1 (July 1999): 105–13. http://dx.doi.org/10.1002/(sici)1097-4652(199907)180:1<105::aid-jcp12>3.0.co;2-5.

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9

SAVARI, A., A. P. M. LOCKWOOD, and M. SHEADER. "EFFECTS OF SEASON AND SIZE (AGE) ON HEAVY METAL CONCENTRATIONS OF THE COMMON COCKLE (CERASTODERMA EDULE (L.)) FROM SOUTHAMPTON WATER." Journal of Molluscan Studies 57, no. 1 (1991): 45–57. http://dx.doi.org/10.1093/mollus/57.1.45.

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10

DING, Yan-Fei, Cheng ZHU, Shan-Shan WANG, and Hai-Li LIU. "Regulation of Heavy Metal Stress Response by Plant microRNAs*." PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS 38, no. 12 (January 3, 2012): 1106–10. http://dx.doi.org/10.3724/sp.j.1206.2011.00354.

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11

Saumya, Srivastava, and Shukla Arvind Kumar. "Differential Response of Black Gram towards Heavy Metal Stress." Environmental Pollution and Protection 1, no. 2 (December 23, 2016): 89–96. http://dx.doi.org/10.22606/epp.2016.12004.

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12

Ralph, P. J., and M. D. Burchett. "Photosynthetic response of Halophila ovalis to heavy metal stress." Environmental Pollution 103, no. 1 (October 1998): 91–101. http://dx.doi.org/10.1016/s0269-7491(98)00121-3.

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13

Baizerman, Arek R. "Response: Heavy metal music?A view from a teen." Child & Youth Care Forum 21, no. 1 (February 1992): 23–24. http://dx.doi.org/10.1007/bf00757341.

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14

Zubair, Muhammad, Qudrat Ullah Khan, Nosheen Mirza, Rizwana Sarwar, Asghar Ali Khan, Mohammad Safdar Baloch, Shah Fahad, and Adnan Noor Shah. "Physiological response of spinach to toxic heavy metal stress." Environmental Science and Pollution Research 26, no. 31 (September 4, 2019): 31667–74. http://dx.doi.org/10.1007/s11356-019-06292-7.

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15

Costa, R. A., T. Gomes, C. Eira, J. Vaqueiro, and J. V. Vingada. "Great tit response to decreasing industrial heavy metal emissions." Ecotoxicology 26, no. 6 (May 15, 2017): 802–8. http://dx.doi.org/10.1007/s10646-017-1811-6.

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16

Kimura, Tomoki, Norio Itoh, and Glen K. Andrews. "Mechanisms of Heavy Metal Sensing by Metal Response Element-binding Transcription Factor-1." JOURNAL OF HEALTH SCIENCE 55, no. 4 (2009): 484–94. http://dx.doi.org/10.1248/jhs.55.484.

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17

Shimizu, Flavio, Maria Braunger, and Antonio Riul. "Heavy Metal/Toxins Detection Using Electronic Tongues." Chemosensors 7, no. 3 (August 2, 2019): 36. http://dx.doi.org/10.3390/chemosensors7030036.

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The growing concern for sustainability and environmental preservation has increased the demand for reliable, fast response, and low-cost devices to monitor the existence of heavy metals and toxins in water resources. An electronic tongue (e-tongue) is a multisensory array mostly based on electroanalytical methods and multivariate statistical techniques to facilitate information visualization in a qualitative and/or quantitative way. E-tongues are promising analytical devices having simple operation, fast response, low cost, easy integration with other systems (microfluidic, optical, etc) to enable miniaturization and provide a high sensitivity for measurements in complex liquid media, providing an interesting alternative to address many of the existing environmental monitoring challenges, specifically relevant emerging pollutants such as heavy metals and toxins.

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18

Emamverdian, Abolghassem, Yulong Ding, Farzad Mokhberdoran, and Yinfeng Xie. "Heavy Metal Stress and Some Mechanisms of Plant Defense Response." Scientific World Journal 2015 (2015): 1–18. http://dx.doi.org/10.1155/2015/756120.

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Unprecedented bioaccumulation and biomagnification of heavy metals (HMs) in the environment have become a dilemma for all living organisms including plants. HMs at toxic levels have the capability to interact with several vital cellular biomolecules such as nuclear proteins and DNA, leading to excessive augmentation of reactive oxygen species (ROS). This would inflict serious morphological, metabolic, and physiological anomalies in plants ranging from chlorosis of shoot to lipid peroxidation and protein degradation. In response, plants are equipped with a repertoire of mechanisms to counteract heavy metal (HM) toxicity. The key elements of these are chelating metals by forming phytochelatins (PCs) or metallothioneins (MTs) metal complex at the intra- and intercellular level, which is followed by the removal of HM ions from sensitive sites or vacuolar sequestration of ligand-metal complex. Nonenzymatically synthesized compounds such as proline (Pro) are able to strengthen metal-detoxification capacity of intracellular antioxidant enzymes. Another important additive component of plant defense system is symbiotic association with arbuscular mycorrhizal (AM) fungi. AM can effectively immobilize HMs and reduce their uptake by host plants via binding metal ions to hyphal cell wall and excreting several extracellular biomolecules. Additionally, AM fungi can enhance activities of antioxidant defense machinery of plants.

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19

OHYA, HIROSHI, and YUTAKA KOMAI. "Response of Microbial Communities to Heavy Metal Contamination in Soils." Bulletin of Japanese Society of Microbial Ecology 3, no. 1 (1988): 47–57. http://dx.doi.org/10.1264/microbes1986.3.47.

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20

Zhang, Xu, Huanhuan Yang, and Zhaojie Cui. "Mucor circinelloides: efficiency of bioremediation response to heavy metal pollution." Toxicology Research 6, no. 4 (2017): 442–47. http://dx.doi.org/10.1039/c7tx00110j.

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21

Zhang, Xiaoli, Xiaoliang Zhao, Baozhu Li, Jinchan Xia, and Yuchen Miao. "SRO1 regulates heavy metal mercury stress response in Arabidopsis thaliana." Chinese Science Bulletin 59, no. 25 (April 23, 2014): 3134–41. http://dx.doi.org/10.1007/s11434-014-0356-9.

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22

Sorvari, Jouni, Liisa M. Rantala, Markus J. Rantala, Harri Hakkarainen, and Tapio Eeva. "Heavy metal pollution disturbs immune response in wild ant populations." Environmental Pollution 145, no. 1 (January 2007): 324–28. http://dx.doi.org/10.1016/j.envpol.2006.03.004.

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23

Wettlaufer, S. H., J. Osmeloski, and L. H. Weinstein. "Response of polyamines to heavy metal stress in oat seedlings." Environmental Toxicology and Chemistry 10, no. 8 (August 1991): 1083–88. http://dx.doi.org/10.1002/etc.5620100813.

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24

Melcer, H., H. Monteith, and S. G. Nutt. "Activated Sludge Process Response to Variable Inputs of Heavy Metals." Water Science and Technology 25, no. 11 (June 1, 1992): 387–94. http://dx.doi.org/10.2166/wst.1992.0317.

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Laboratory-scale activated sludge treatment systems were operated under dynamic loading conditions to investigate the non-steady state behaviour of heavy metal contaminants under controlled conditions. Four step tests were conducted in which an incremental increase in the concentrations of selected contaminants was applied to the reactor feed from background levels of about 100 µg/L to levels of about 1000 µg/L for each metal over a period of approximately three hydraulic retention times. Effluent metal concentrations rose significantly to levels of approximately 500 µg/L. They remained elevated for long periods after termination of the metal perturbations. Solids retention time (SRI) did not appear to influence metal removal efficiency over the range tested. Hydraulic retention time (HRT) effects were difficult to discern from the confounding effect of influent metal concentration.

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25

Khatiwada, Bishal, Mafruha T. Hasan, Angela Sun, Karthik Shantharam Kamath, Mehdi Mirzaei, Anwar Sunna, and Helena Nevalainen. "Proteomic response of Euglena gracilis to heavy metal exposure – Identification of key proteins involved in heavy metal tolerance and accumulation." Algal Research 45 (January 2020): 101764. http://dx.doi.org/10.1016/j.algal.2019.101764.

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26

Karlidağ, Hüseyin, Metin Turan, Fırat Ege Karaat, Ekrem Ozlu, Francisco Arriaga, Tuncay Kan, and Salih Atay. "RESPONSE OF HEAVY METAL CONTENTS IN APRICOTS TO DIFFERENT TRANSPORTATION MODES." Acta Scientiarum Polonorum Hortorum Cultus 18, no. 1 (February 19, 2019): 75–84. http://dx.doi.org/10.24326/asphc.2019.1.8.

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In order to evaluate the effects of different transportation hubs on cultivated soil and apricots, macro and micro elements and heavy metal contents of fruit, leaf, kernel and soil samples collected from apricot orchards located at the border of the railroad, the motorway, the airport, and an orchard far from transportation modes were detected by ICP/OES (inductively coupled plasma / optical emission spectrometry). The results indicated the highest Cd, Pb and Ni contents of soil, fruit, and kernel samples under impacts of railroad transportation modes, whereas the highest contents of leaf were found under motorway side. All fruit samples contained higher amounts of Cd and Pb compared to permissible limits of FAO/WHO, and contents differentiated between sampling locations. There were no correlative relations found between transportation modes and macro-micro element contents. As a conclusion, in terms of heavy metal contamination, the orchards located at railway sides have the highest risk and this was followed by motorway side.

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27

Sridhar, K. R., Felix Bärlocher, Gerd-Joachim Krauss, and Gudrun Krauss. "Response of Aquatic Hyphomycete Communities to Changes in Heavy Metal Exposure." International Review of Hydrobiology 90, no. 1 (January 27, 2005): 21–32. http://dx.doi.org/10.1002/iroh.200410736.

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28

Chu, Ya, Songyu Liu, Fei Wang, Hanliang Bian, and Guojun Cai. "Electric conductance response on engineering properties of heavy metal polluted soils." Journal of Environmental Chemical Engineering 6, no. 4 (August 2018): 5552–60. http://dx.doi.org/10.1016/j.jece.2018.08.046.

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29

Cvjetko, Petra, Mira Zovko, and Biljana Balen. "Proteomics of heavy metal toxicity in plants." Archives of Industrial Hygiene and Toxicology 65, no. 1 (March 1, 2014): 1–18. http://dx.doi.org/10.2478/10004-1254-65-2014-2443.

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Summary Plants endure a variety of abiotic and biotic stresses, all of which cause major limitations to production. Among abiotic stressors, heavy metal contamination represents a global environmental problem endangering humans, animals, and plants. Exposure to heavy metals has been documented to induce changes in the expression of plant proteins. Proteins are macromolecules directly responsible for most biological processes in a living cell, while protein function is directly influenced by posttranslational modifications, which cannot be identified through genome studies. Therefore, it is necessary to conduct proteomic studies, which enable the elucidation of the presence and role of proteins under specific environmental conditions. This review attempts to present current knowledge on proteomic techniques developed with an aim to detect the response of plant to heavy metal stress. Significant contributions to a better understanding of the complex mechanisms of plant acclimation to metal stress are also discussed.

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30

Prabhakaran, Pranesha, Muhammad Aqeel Ashraf, and Wan Syaidatul Aqma. "Microbial stress response to heavy metals in the environment." RSC Advances 6, no. 111 (2016): 109862–77. http://dx.doi.org/10.1039/c6ra10966g.

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Heavy metal contamination is a global environmental issue as it poses a significant threat to public health, and exposure to metals above a certain threshold level can cause deleterious effects in all living organisms including microbes.

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31

Suryono, Chrisna Adhi. "Kontaminasi Logam Berat pada Kerang Bulu Anadara inflate Secara Laboratorium." Jurnal Kelautan Tropis 18, no. 3 (May 27, 2016): 184. http://dx.doi.org/10.14710/jkt.v18i3.532.

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Masuknya logam berat sepeti Pb kedalam tubuh kerang dapat melalui jaringan makananan atau kontak dengan lingkungannya. Penelitian ini bertujuan untuk mengetahui pengaruh akumulasi logam berat Pb terhadap filtrasi Anadara inflata. Penelitian eksperimen laboratories ini menggunakan 4 konsentrasi Pb (19 ppm, 18 ppm, 17 ppm dan 16 ppm) sebagai perlakuan dan diulang sebanyak 3 kali. Hasil penelitian menunjukan kesemua perlakuan menunjukan penurunan kemampuan filtrasi setelah kerang bulu terakumulasi logam Pb setelah berada dalam media 13 jam kedua.Kata kunci : Anadara inflata, bioakumulasi, PbThe heavy metal Pb can be contaminated on Anadara inflata tissue through food web system and direct contact. The aim of present study is to understand the effect of Pb accumulation on A. inflata filtration. The laboratories experiment with 4 different concentrations of Pb (19 ppm, 18 ppm, 17 ppm and16 ppm) and 3 replication has done. The result show, that all concentration of Pb gave negative impact on cockle filtration after the second of 13 hours exposure.Keyword : Anadara inflata, bioaccumulation, Pb

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32

Madoni, Paolo, Donatella Davoli, and Lorena Guglielmi. "Response of sOUR and AUR to heavy metal contamination in activated sludge." Water Research 33, no. 10 (July 1999): 2459–64. http://dx.doi.org/10.1016/s0043-1354(98)00455-2.

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33

Jordanova, Neli V., Diana V. Jordanova, Ludmila Veneva, Kitka Yorova, and Eduard Petrovsky. "Magnetic Response of Soils and Vegetation to Heavy Metal PollutionA Case Study." Environmental Science & Technology 37, no. 19 (October 2003): 4417–24. http://dx.doi.org/10.1021/es0200645.

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34

Grodzińska, K., and G. Szarek-Łukaszewska. "Response of mosses to the heavy metal deposition in Poland — an overview." Environmental Pollution 114, no. 3 (October 2001): 443–51. http://dx.doi.org/10.1016/s0269-7491(00)00227-x.

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Aladdin, Layla, and Farhad Aziz. "Response of Algae to Heavy Metal Removing with Particular Reference to pH." Polish Journal of Environmental Studies 29, no. 3 (March 31, 2020): 2041–53. http://dx.doi.org/10.15244/pjoes/110446.

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Peck, Margaret Eleanor, Trisha Staab, Jason Chan, Ali Eleanor Moats, and Azia Eleanor Kalil. "The Role of Ceramide Synthases Response to the Heavy Metal Cadmium Chloride." FASEB Journal 34, S1 (April 2020): 1. http://dx.doi.org/10.1096/fasebj.2020.34.s1.04363.

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37

Plaskin, O. A. "Electronic excitations and optical response of metal nanocomposites under heavy ion implantation." Optics and Spectroscopy 101, no. 6 (December 2006): 914–25. http://dx.doi.org/10.1134/s0030400x06120150.

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Mithöfer, Axel, Birgit Schulze, and Wilhelm Boland. "Biotic and heavy metal stress response in plants: evidence for common signals." FEBS Letters 566, no. 1-3 (April 22, 2004): 1–5. http://dx.doi.org/10.1016/j.febslet.2004.04.011.

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39

Awotedu, Olamilekan L., Paul O. Ogunbamowo, Bolajoko F. Awotedu, and Ileri-Oluwa B. Emmanuel. "Comparative Growth Response of Three Jatropha Species on Heavy Metal Contaminated Soil." International Annals of Science 5, no. 1 (May 24, 2018): 26–32. http://dx.doi.org/10.21467/ias.5.1.26-32.

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This study investigated the comparative phytotoxcity effect of heavy metal contamination on Jatropha curcas, Jatropha gossypifolia and Jatropha multifida in contaminated soil from a dump site in Ibadan Nigeria. Seeds of J. curcas, J. gossypifolia and J. multifida were planted in a germination tray and later transplanted into polythene pots filled with 2kg of either control soil or heavy metal contaminated soil, a 3 × 2 factorial experiment laid out in complete randomized design (CRD) replicated four times was adopted; treatments imposed include T1 – J. curcas/Control Soil, T2 – J. gossypifolia/Control Soil, T3 – J. multifida/Control Soil, T4 – J. curcas/Contaminated soil, T5 – J. gossypifolia/Contaminated Soil, and T6 – J. multifida/Contaminated Soil. Weekly variation in growth parameters: the plant height, leave production and stem diameter were measured over the course of 12 weeks. The growth parameters were dependent on a combination of both specie type and level of heavy metal contamination of soil. J. multifida (T3) (36.93cm) performed best, comparable with J. gossypiifolia (T2) (34.1cm) after 12 weeks while J. multifida (T6) had the lowest mean plant height (7.23cm) which is not significantly (p<0.05) different from other species on the contaminated soil; for leave production, J. gossypiifolia (T2) produced the highest mean number of leaves (9.67) which is comparable with J. multifida (T3) (9.00) and less so with J. curcas (T1) (6.67) with significant leave losses on the contaminated soils after 12 weeks; variation in stem diameter shows that J. curcas (T1) had the highest stem girth (1.96 mm) which is comparable to the value obtained for J. curcas (T4) (1.95mm), while J. multifida (T6) had the lowest stem girth (1.09 mm). J. gossypiifolia (T2) and J. multifida (T3) had comparable stem girth of 1.57mm and 1.47mm respectively. Toxicity of heavy metals in the contaminated soil greatly affect the growth parameters of the Jatropha.

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40

Li, Ningning, Yao Chen, Zhengke Zhang, Sha Chang, Dawei Huang, Sili Chen, Qingwei Guo, Shuguang Xie, and Yongxin Bing. "Response of ammonia-oxidizing archaea to heavy metal contamination in freshwater sediment." Journal of Environmental Sciences 77 (March 2019): 392–99. http://dx.doi.org/10.1016/j.jes.2018.09.020.

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Liu, Tie, Shuiying Liu, Hua Guan, Ligeng Ma, Zhangliang Chen, Hongya Gu, and Li-Jia Qu. "Transcriptional profiling of Arabidopsis seedlings in response to heavy metal lead (Pb)." Environmental and Experimental Botany 67, no. 2 (December 2009): 377–86. http://dx.doi.org/10.1016/j.envexpbot.2009.03.016.

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Mi, Liwei, Weihua Chen, Zhen Li, Yaming Wang, Guoqiang Zheng, Yingguo Zhou, Changchun Yang, Jianmin Zhang, Changyu Shen, and Hongwei Hou. "Response of Two-Dimensional Polymeric Cadmium Ferrocenyl Disulfonates to Heavy Metal Ions." Journal of Inorganic and Organometallic Polymers and Materials 20, no. 4 (August 11, 2010): 847–55. http://dx.doi.org/10.1007/s10904-010-9390-5.

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., Rajdeep Chakravarty, Sanjukta Manna ., Anil K. Ghosh ., and Pataki C. Banerjee . "Morphological Changes in an Acidocella Strain in Response to Heavy Metal Stress." Research Journal of Microbiology 2, no. 10 (October 1, 2007): 742–48. http://dx.doi.org/10.3923/jm.2007.742.748.

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Zhang, Bo, Dieter Egli, Oleg Georgiev, and Walter Schaffner. "The Drosophila Homolog of Mammalian Zinc Finger Factor MTF-1 Activates Transcription in Response to Heavy Metals." Molecular and Cellular Biology 21, no. 14 (July 15, 2001): 4505–14. http://dx.doi.org/10.1128/mcb.21.14.4505-4514.2001.

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ABSTRACT Metallothioneins (MTs) are short, cysteine-rich proteins for heavy metal homeostasis and detoxification; they bind a variety of heavy metals and also act as radical scavengers. Transcription of mammalian MT genes is activated by heavy metal load via the metal-responsive transcription factor 1 (MTF-1), an essential zinc finger protein whose elimination in mice leads to embryonic lethality due to liver decay. Here we characterize the Drosophila homolog of vertebrate MTF-1 (dMTF-1), a 791-amino-acid protein which is most similar to its mammalian counterpart in the DNA-binding zinc finger region. Like mammalian MTF-1, dMTF-1 binds to conserved metal-responsive promoter elements (MREs) and requires zinc for DNA binding, yet some aspects of heavy metal regulation have also been subject to divergent evolution between Drosophila and mammals. dMTF-1, unlike mammalian MTF-1, is resistant to low pH (6 to 6.5). Furthermore, mammalian MT genes are activated best by zinc and cadmium, whereas in Drosophila cells, cadmium and copper are more potent inducers than zinc. The latter species difference is most likely due to aspects of heavy metal metabolism other than MTF-1, since in transfected mammalian cells, dMTF-1 responds to zinc like mammalian MTF-1. Heavy metal induction of bothDrosophila MTs is abolished by double-stranded RNA interference: small amounts of cotransfected double-stranded RNA ofdMTF-1 but not of unrelated control RNA inhibit the response to both the endogenous dMTF-1 and transfected dMTF-1. These data underline an important role for dMTF-1 in MT gene regulation and thus heavy metal homeostasis.

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Fermer, Jan, Sarah C. Culloty, Thomas C. Kelly, and Ruth M. O'Riordan. "Manipulation of Cerastoderma edule burrowing ability by Meiogymnophallus minutus metacercariae?" Journal of the Marine Biological Association of the United Kingdom 91, no. 4 (June 2, 2010): 907–11. http://dx.doi.org/10.1017/s0025315410000299.

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Metacercariae of various digenean trematodes are assumed to impair the burrowing capacity of cockles Cerastoderma edule. To reveal if metacercarial infections of the gymnophallid Meiogymnophallus minutus have effects on burrowing and shell closure, a laboratory experiment using cockles with slight and extremely heavy infections was performed at water temperatures of 15, 20, and 25°C. Gaping of the cockle shell valves or other behavioural abnormalities, which have previously been ascribed to M. minutus infections, were not observed. Neither response time nor burrowing time differed significantly between slightly and heavily infected cockles at any of the temperatures tested, suggesting that the effects of the digenean trematode on its second intermediate host are not necessarily as pronounced as proposed by earlier publications, not even when additional environmental stress in the form of high water temperatures is present. Our findings question the hypothesis that M. minutus manipulates the behaviour of C. edule, in order to increase the probability of successful transmission to the avian final host.

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Bai, Linyi, Li Juan Tou, Qiang Gao, Purnandhu Bose, and Yanli Zhao. "Remarkable colorimetric sensing of heavy metal ions based on thiol-rich nanoframes." Chemical Communications 52, no. 94 (2016): 13691–94. http://dx.doi.org/10.1039/c6cc08007c.

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Tailored dimercaptosuccinic acid based nanoframes were developed for sensing heavy metal ions, where remarkable colorimetric changes were observed in response to different heavy metal ions. The present work demonstrates a simple and effective approach for the detection of heavy metal ions.

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Bankar, Ashok, Smita Zinjarde, Aishwarya Telmore, Aishwarya Walke, and Ameeta Ravikumar. "Morphological response of Yarrowia lipolytica under stress of heavy metals." Canadian Journal of Microbiology 64, no. 8 (August 2018): 559–66. http://dx.doi.org/10.1139/cjm-2018-0050.

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The marine dimorphic yeast Yarrowia lipolytica has been proposed as a suitable model for the dimorphism study. In this study, the morphological behaviour of two marine strains of Y. lipolytica (NCIM 3589 and NCIM 3590) was studied under stress of different heavy metals. Scanning electron microscopy was used to investigate the morphological features of yeast cells. This study revealed that the normal ellipsoidal shape of yeast cells was changed into oval, rounded, or elongated in response to different heavy-metal stress. Light microscopy was also used to investigate individual properties of yeast cells. The average cell length and radius of both marine strains was increased with increasing concentrations of heavy-metal ions. In addition, the elongation factor was calculated and was increased in the presence of heavy metals like Pb(II), Co(II), Cr(III), Cr(VI), and Zn(II) under the static conditions.

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Chen, Yuan Hua, Ji Ping Jiang, Yu Liu, Li Na Zhang, and Yi Wang. "A GIS-Based Early Warning and Emergency Decision Support System for River Heavy Metal Pollution Incidents." Advanced Materials Research 664 (February 2013): 399–402. http://dx.doi.org/10.4028/www.scientific.net/amr.664.399.

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Recently, aquatic pollution of heavy metals has been breaking out with increasing frequency around the world, which puts great threats to ecosystem and human health. However, there are seldom researches on Early Warning/Emergency Response System (EWERS) of heavy metal pollution. In this present study, we propose a logistic structure and function structure of EWERS on the ground of functional requirement of response to river heavy metal pollution. This system includes five subsystems: heavy metal monitoring, contaminant source information management, emergency management, database and authority management subsystems. It can not only predict the process of heavy metal accumulation processes, but also calculate risk degree for given area taking the water function zone into consideration. For those areas where risk is identified as unacceptable, emergency response plan should be created by case base reasoning to achieve reduction hazard in a cost-effective way.

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Morkunas, Iwona, Agnieszka Woźniak, Van Mai, Renata Rucińska-Sobkowiak, and Philippe Jeandet. "The Role of Heavy Metals in Plant Response to Biotic Stress." Molecules 23, no. 9 (September 11, 2018): 2320. http://dx.doi.org/10.3390/molecules23092320.

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The present review discusses the impact of heavy metals on the growth of plants at different concentrations, paying particular attention to the hormesis effect. Within the past decade, study of the hormesis phenomenon has generated considerable interest because it was considered not only in the framework of plant growth stimulation but also as an adaptive response of plants to a low level of stress which in turn can play an important role in their responses to other stress factors. In this review, we focused on the defence mechanisms of plants as a response to different metal ion doses and during the crosstalk between metal ions and biotic stressors such as insects and pathogenic fungi. Issues relating to metal ion acquisition and ion homeostasis that may be essential for the survival of plants, pathogens and herbivores competing in the same environment were highlighted. Besides, the influence of heavy metals on insects, especially aphids and pathogenic fungi, was shown. Our intention was also to shed light on the relationship between heavy metals deposition in the environment and ecological communities formed under a strong selective pressure.

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Gao, Yongfeng, Fengming Yang, Jikai Liu, Wang Xie, Lin Zhang, Zihao Chen, Zhuoxi Peng, Yongbin Ou, and Yinan Yao. "Genome-Wide Identification of Metal Tolerance Protein Genes in Populus trichocarpa and Their Roles in Response to Various Heavy Metal Stresses." International Journal of Molecular Sciences 21, no. 5 (February 29, 2020): 1680. http://dx.doi.org/10.3390/ijms21051680.

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Metal tolerance proteins (MTPs) are plant divalent cation transporters that play important roles in plant metal tolerance and homeostasis. Poplar is an ideal candidate for the phytoremediation of heavy metals because of its numerous beneficial attributes. However, the definitive phylogeny and heavy metal transport mechanisms of the MTP family in poplar remain unknown. Here, 22 MTP genes in P. trichocarpa were identified and classified into three major clusters and seven groups according to phylogenetic relationships. An evolutionary analysis suggested that PtrMTP genes had undergone gene expansion through tandem or segmental duplication events. Moreover, all PtrMTPs were predicted to localize in the vacuole and/or cell membrane, and contained typical structural features of the MTP family, cation efflux domain. The temporal and spatial expression pattern analysis results indicated the involvement of PtrMTP genes in poplar developmental control. Under heavy metal stress, most of PtrMTP genes were induced by at least two metal ions in roots, stems or leaves. In addition, PtrMTP8.1, PtrMTP9 and PtrMTP10.4 displayed the ability of Mn transport in yeast cells, and PtrMTP6 could transport Co, Fe and Mn. These findings will provide an important foundation to elucidate the biological functions of PtrMTP genes, and especially their role in regulating heavy metal tolerance in poplar.

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