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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Tripathi, Durgesh Kumar Singh, Vijay Pratap Prasad, Sheo Mohan Chauhan, Devendra Kumar Kishore Dubey, Nawal Rai, Awadhesh Kumar |
| Description | Author Affiliation: Tripathi DK ( Center of Advance Studies, Department of Botany, Banaras Hindu University, Varanasi 221005, India. Electronic address: dktripathiau@gmail.com.); Singh VP ( Govt. RamanujPratap Singhdev Post Graduate College, Baikunthpur, Korea-497335, Chhattisgarh, India. Electronic address: vijaypratap.au@gmail.com.); Prasad SM ( Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Allahabad 211002, India. Electronic address: profsmprasad@gmail.com.); Chauhan DK ( D.D. Pant Interdisciplinary Research Laboratory, Department of Botany, University of Allahabad, Allahabad 211002, India. Electronic address: dkchauhanau@yahoo.com.); Kishore Dubey N ( Center of Advance Studies, Department of Botany, Banaras Hindu University, Varanasi 221005, India. Electronic address: nkdubeybhu@gmail.com.); Rai AK ( Laser Spectroscopy Research Lab, Department of Physics, University of Allahabad, Allahabad, India. Electronic address: awadheshkrai@rediffmail.com.) |
| Abstract | Silicon (Si)-mediated alleviation of Cr(VI) toxicity was examined in wheat seedlings using an in vivo approach that involves chlorophyll fluorescence, laser induced breakdown spectroscopy (LIBS) and anatomical changes. Exposure to Cr(VI) significantly reduced the growth and photosynthetic activities (chlorophyll fluorescence) in wheat which was accompanied by remarkable accumulation of this element in tissues. However, addition of Si to the growth medium alleviated the effects of Cr(VI). The LIBS spectra were used as a fingerprint of the elemental compositions in wheat seedlings, which showed a reduction in Cr accumulation following Si addition. Nutrient element levels (Ca, Mg, K and Na) declined in wheat following the addition of Cr (VI), as recorded by LIBS and inductively coupled plasma atomic emission spectroscopy (ICAP-AES). However, addition of Si along with Cr(VI) increased the contents of nutrient elements in wheat. LIBS, ICAP-AES and AAS showed a similar distribution pattern of elements measured in wheat. Anatomical observations of leaf and root revealed that Cr(VI) affected internal structures while Si played a role in protection from toxic effects. The results showed the suitability of chlorophyll fluorescence as a parameter and appropriateness of LIBS technique and anatomical procedures to elucidate Si-mediated alleviation of Cr(VI) toxicity. Furthermore, our results suggest that the measured parameters and techniques can be used non-invasively for monitoring the growth of crops under different environmental conditions. |
| File Format | HTM / HTML |
| ISSN | 01476513 |
| Volume Number | 113 |
| e-ISSN | 10902414 |
| Journal | Ecotoxicology and Environmental Safety |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-03-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Sciences Chromium Toxicity Environmental Pollutants Silicon Pharmacology Triticum Drug Effects Chlorophyll Chemistry Metabolism Drug Interactions Lasers Photosynthesis Plant Leaves Anatomy & Histology Plant Roots Seedling Spectrophotometry, Atomic Spectrum Analysis Instrumentation Growth & Development Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Pollution Health, Toxicology and Mutagenesis Public Health, Environmental and Occupational Health |
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