Comparative metalloproteomic approaches for the investigation proteins involved in the toxicity of inorganic and organic forms of mercury in rice (Oryza sativa L.) roots

Metallomics ◽  
2016 ◽  
Vol 8 (7) ◽  
pp. 663-671 ◽  
Author(s):  
Yunyun Li ◽  
Jiating Zhao ◽  
Yu-Feng Li ◽  
Xiaohan Xu ◽  
Bowen Zhang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Inorganic Mercury ◽  
Rice Roots ◽  
Toxicity Mechanisms ◽  
Inorganic And Organic

The toxicity mechanisms of rice roots under inorganic mercury (IHg) or methylmercury (MeHg) stress were investigated using metalloproteomic approaches.

The local impact of a coal-fired power plant on inorganic mercury and methyl-mercury distribution in rice (Oryza sativa L.)

2017 ◽  
Vol 223 ◽  
pp. 11-18 ◽  
Author(s):  
Xiaohang Xu ◽  
Bo Meng ◽  
Chao Zhang ◽  
Xinbin Feng ◽  
Chunhao Gu ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Power Plant ◽  
Methyl Mercury ◽  
Oryza Sativa L ◽  
Inorganic Mercury ◽  
Mercury Distribution ◽  
Local Impact

scholarly journals Effects of lanthanum on growth and accumulation in roots of rice seedlings  

2013 ◽  
Vol 59 (No. 5) ◽  
pp. 196-200 ◽  
Author(s):  
D. Liu ◽  
X. Wang ◽  
X. Zhang ◽  
Z. Gao
Keyword(s):  
Oryza Sativa ◽  
Electron Microscope ◽  
Nutritional Status ◽  
Transmission Electron Microscope ◽  
Cell Walls ◽  
Oryza Sativa L ◽  
Rice Seedlings ◽  
Rice Roots ◽  
Transmission Electron

Hormetic effects on the growth were found in the roots of rice (Oryza sativa L. cv. Shengdao 16) exposed to increasing concentrations of La<sup>3+</sup> (0.05, 0.1, 0.5, 1.0, and 1.5 mmol/L). The results indicated that La<sup>3+</sup> promoted the growth of rice roots at 0.05 mmol/L, but inhibited the growth at 1.0 and 1.5 mmol/L La<sup>3+</sup> after 13 days of exposure. Transmission electron microscope showed that La<sup>3+</sup> was mainly deposited in the cell walls of the roots. In addition, the accumulation of K, Mg, Ca, Na, Fe, Mn, Zn, Cu, and Mo in the roots was also affected with the exposure of different La<sup>3+</sup> treatments. It showed that La<sup>3+</sup> affected the nutritional status of roots and further regulated the growth of rice.

Inorganic mercury accumulation in rice (Oryza sativa L.)

2012 ◽  
Vol 31 (9) ◽  
pp. 2093-2098 ◽  
Author(s):  
Bo Meng ◽  
Xinbin Feng ◽  
Guangle Qiu ◽  
Dingyong Wang ◽  
Peng Liang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Inorganic Mercury ◽  
Mercury Accumulation

scholarly journals Evaluation of Different Carrier Substances for the Development of an Effective Pelleted Biofertilizer for Rice (Oryza sativa L.) Using Co-inoculated Bacteria and Arbuscular Mycorrhizal Fungi

2020 ◽  
pp. 1-10
Author(s):  
B. K. W. Pathirana ◽  
P. N. Yapa
Keyword(s):  
Oryza Sativa ◽  
Sri Lanka ◽  
Arbuscular Mycorrhizal Fungi ◽  
Mycorrhizal Fungi ◽  
Oryza Sativa L ◽  
Arbuscular Mycorrhizal ◽  
Growth And Yield ◽  
Aquatic Weed ◽  
Rice Roots ◽  
Nutrient Supplement

Aims: This study was aimed to compare aquatic weed, biochar and compost carrier substances for the development of effective pelleted biofertilizer for paddy (Oryza sativa L.) using co-inoculated bacteria, Azospirillum sp., Pseudomonas fluorescens and arbuscular mycorrhizal fungi (AMF). Place and Duration of Study: Faculty of Applied Sciences, Rajarata University of Sri Lanka, Mihintale, Sri Lanka between November 2018 and May 2019. Methodology: Pre-sterilized, 1 kg weight of ground carrier material was inoculated with 50 g of AMF propagules and 20 ml of 1.5 x 108 (CFU/ml) of each bacterial inoculant. Different types of pelleted biofertilizers were prepared as; aquatic weed and bioinoculum (P1), aquatic weed, bioinoculum and nutrient supplement mixture (P2), biochar and bioinoculum (P3), biochar, bioinoculum and nutrient supplement mixture (P4), compost and bioinoculum (P5), compost, bioinoculum and nutrient supplement mixture (P6). Rock phosphate and potassium feldspar was used as nutrient supplement mixture in developing some pelleted biofertilizers. Biofertilizer pellets were tested for the microbial survivability with the time by determining viable cell count of bacteria at two storage temperatures of 0°C and 30°C. Pot experiment was carried out to investigate the effects of prepared pelleted biofertilizers on growth and yield of rice and on some soil chemical and biological characteristics. Control (without biofertilizers) and above pelleted biofertilizers were added to the 3000 g of soil in pot with one paddy plant of variety BG 360. The treatments were arranged in a randomized complete block design (RCBD) with five replicates. Rice roots were screened for AMF colonization after harvesting. Results: According to Tukey’s Pairwise Comparison test, control and different treatments in pot experiment were significantly different for shoot height, number of seeds per panicle, 100 seeds weight and soil pH (p ≤ 0.05). However, there was no significant difference observed for bacterial count in prepared biofertilizers and biofertilizer applied soil, relative growth rate, plant dry and fresh weights and electrical conductivity. Among different pelleted biofertilizers, application of pellets consisted of compost with bioinoculant (P5), exceedingly enhanced the rice growth and yield. Compost, bioinoculum and nutrient supplement mixture (P6) added pellets were shown highest bacterial survivability at 30°C for seven days. Although AMF colonization of rice plants were low this was the first report of citing the presence of AMF in rice roots in Sri Lanka. Conclusion: These pelleted biofertilizers have the potential to be used for improved productivity of rice variety Bg 360. Therefore, developing such bioinoculants as biofertilizers and their efficient use could be considered as a sustainable solution for rice cultivation in Sri Lanka and worldwide.

Distribution Patterns of Inorganic Mercury and Methylmercury in Tissues of Rice (Oryza sativa L.) Plants and Possible Bioaccumulation Pathways

2010 ◽  
Vol 58 (8) ◽  
pp. 4951-4958 ◽  
Author(s):  
Bo Meng ◽  
Xinbin Feng ◽  
Guangle Qiu ◽  
Yong Cai ◽  
Dingyong Wang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Inorganic Mercury ◽  
Distribution Patterns

scholarly journals Microarray Data Analysis of as-induced Rice Roots by using Easygo and Mapman Softwares

2019 ◽  
Vol 35 (3) ◽  
Author(s):  
Nguyen Thi Thuy Quynh ◽  
Pham Le Ngoc Han ◽  
Vo Khanh Tam ◽  
Phung Thi Kim Hue ◽  
Tsai -Lien Huang
Keyword(s):  
Oxidative Stress ◽  
Oryza Sativa ◽  
Microarray Analysis ◽  
Microarray Data ◽  
Metabolic Pathways ◽  
Oryza Sativa L ◽  
Biological Processes ◽  
Glutathione S Transferase ◽  
Rice Roots ◽  
Arsenic Stress

Rice is one of the most important crops in Asian countries such as China, Vietnam... Many recent reports indicate that the arsenic content in rice exceeds the threshold and affects human health. Studying of molecular mechanisms and finding the arsenic resistance genes in rice which is extremely important and urgent. In this study, we analyzed the transcriptional changes of arsenic-treated rice root cells during 24 hours by microarray technique. Results showed that a large number of the differentially expressed genes (720 genes). EasyGO and Mapman softwares are powerful tools in analyzing microarray data and classifying functional groups as well as the important metabolic pathways in the cell. Results of microarray analysis using EasyGO showed that 74 down-regulated genes related to cellular component, 200 up-regulated genes involved in catalytic activity, 93 up-regulated genes involved in biological processes as responding to environmental stress, and 64 detoxification-realted genes are increased expression such as cytochrome P450, Glutathione-S-transferase and UDP-Glycosyltransferase. Mapman's microarray analysis reaults also indicate that numerous of arsenic-tolerance genes of rice roots. These results support for searching indicated genes in the selection of As-tolerance rice varieties. Keywords Asen, EasyGO, Mapman, microarray, Oryza sativa L. References [1] S.K. Panda, R.K. Upadhyay, S. Nath, Arsenic stress in plants. Journal of Agronomy and Crop Science 196 (2010) 161-174. https://doi.org/10. 1111/j.1439-037X.2009. 00407.x.[2] M.A. Rahman, H. Hasengawa, M.M. Rahman, M.A Miah, A. Tasmin. Arsenic accumulation in rice (Oryza sativa L.): Human exposure through food chain. Ecotoxicology and Environmental Safety 69 (2008): 317-324. https://doi.org/10. 1016/j.ecoenv.2007.01.005.[3] K.A. Marrs, The function and regulation of Glutathione S-transferase in plants. Plant Mol Biol 47 (1996) 127-58. https://doi.org/10.1146/ annurev.arplant.47.1.127.[4] L.M. DelRazo, B. Quintanilla-Vega, E. Brambila-Colombres, E.S. Caldero ́n-Aranda, M. Manno, A. Albores, Stress proteins induced by Arsenic. Toxicology and Applied Pharmacology 177 (2001)132-148. https://doi.org/10.1006/taap. 2001.9291.[5] T.L. Huang, Q.T.T. Nguyen, S.F. Fu, C.Y. Lin, Y.C. Chen, H.J. Huang, Transcriptomic changes and signalling pathways induced by arsenic stress in rice roots. Plant Molecular Biology 80 (2012) 587-608. https://link.springer.com/article/10.10 07/s11103-012-9969-z.[6] O. Thimm, O. Bläsing, Y. Gibon, A. Nagel, S. Meyer, P. Krüger, J. Selbig, L.A. Müller, S.Y Rhee, M. Stitt, Mapman: a user-driven tool to display genomics data sets onto diagrams of metabolic pathways and other biological processes. The Plant Journal 37 (2004) 914-939. https://doi.org/10.1111/j.1365-313X.2004. 02016.x.[7] J. Hartley-Whitker, G. Ainsworth, A.A. Meharg, Copper- and arsenate-induced oxidative stress in Holcus lanatus L. clones with differential sensitivity. Plant, Cell and Environment 24 (2001) 713-722. https://doi.org/10.1046/j.0016-8025.2001.00721.x.[8] S. Mishara, A.B. Jha, R.S. Dubey, Arsenite treatment induces oxidative stress, upregulates antioxidant system, and causes phytochelatin synthesis in rice seedlings. Protoplasma 248 (2011) 565-577. https://doi.org/10.1007/s00709-010-0210-0.[9] M. Chabannes, A. Barakate, C. Lapierre, J.M. Marita, Strong decrease in lignin content without significant alteration of plant development is induced by simultaneous down-regulation of cinnamoyl CoA reductase (CCR) and cinnamyl alcohol dehydrogenase (CAD) in tobacco plants, The Plant 28 (2001): 257-270. https://doi.org/10. 1046/j.1365-313X.2001.01140.x.[10] T. Goujon, V. Ferret, I. Mila, B. Pollet, Down-regulation of the AtCCR1 gene in Arabidopsis thaliana: effects on phenotype, lignins and cell wall degradability. Planta 217 (2003) 218-228. https://doi.org/10.1007/s00425-003-0987-6.[11] C. Li, S. Feng, Y. Shoa, L. Jiang, X. Lu, X. Hou, Effects of arsenic on seed germination and physiological activities of wheat seedlings. Journal of Environmental Sciences. 19 (2007) 725-732. https://doi.org/10.1016/S1001-0742(07) 60121-1.[12] A.A. Meharg, J. Harley-Whitaker, Arsenic uptake and metabolism in arsenic resistant and nonresistant plant species. New Phytologist 154 (2002) 29-43. https://doi.org/10.1046/j.1469-8137.2002.00363.x.      

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