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Mehrotra V Saxena VL Saxena AK 《Journal of environmental biology / Academy of Environmental Biology, India》2008,29(2):147-149
Lead (Pb) is the most ancient poison known to man. In the present study, amount of accumulation of Pb in liver, kidney, ovary and testes of rain quail was studied using different doses of lead. Spectrophotometric analysis of heavy metal treated organs was carried out to determine the amount of metal accumulation in these organs. LD50 value was 4 ppm. Dose of lead was given in three ranges of low, medium and high. It was observed that testes (< or =6.8 x 10(-6)) mgkg(-1)day(-1) and ovary (< or =7.5 x 10(-6)) mgkg(-1)day(-1), accumulated low amount from different doses when given continuously for 21 days. In contrast to this, liver (< or =9.2 x 10(-6)) mgkg(-1)day(-1) and kidney (< or =9.3 x 10(-6)) mgkg(-1)day(-1) accumulated the maximum amount of metal when treated for the same number of days. This study is quite unique and astonishing as the period for intoxication is short (21 days) as compared to the long ones (91 days and above). Our results show that generally metal accumulation is highest in liver, while it is low in gonad. 相似文献
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Mohanan Parayanthala Valappil Sangeetha Vijayan Sabareeswaran Arumugham Muraleedharan Vayalappil Jithin Krishnan Vandana Unnikrishnan Varsha Sheela Bhasi 《Environmental science and pollution research international》2021,28(47):66602-66612
Environmental Science and Pollution Research - Hydrogen peroxide (H2O2) is a reactive chemical used in a wide range of applications. Most importantly, it is used for sterilization process in health... 相似文献
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The ability of dimorphism in fungi is conventionally regarded as a reversible change between the two vegetative forms, yeast
and mycelium, in response to environmental change. A zygomycetous isolate, Benjaminiella poitrasii, exhibited yeast-mycelium transition in response to the change in temperature (37–28 °C) and decrease in glucose concentration.
For the first time the presence of dimorphic response during asexual and sexual spore germination is reported under the dimorphism-triggering
conditions in B. poitrasii. The zygospores germinated into budding yeast when subjected to yeast-form supporting conditions. The mycelium-form favoring
conditions gave rise to true mycelium. Similarly, the asexual spores displayed a dimorphic response during germination. Our
observations suggest that dimorphism is an intrinsic ability present in the vegetative, asexual, and sexual forms of the fungus.
As dimorphic fungi are intermediate to the unicellular yeast and the filamentous forms, understanding of the dimorphic character
could be useful to trace the evolutionary relationships among taxonomically different fungi. Moreover, the implications of
spore germination during the onset of pathogenesis and in drug development for human health care are discussed.
Received: 4 November 1999 / Accepted in revised form: 28 February 2000 相似文献
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Rakesh Kumar Mahajan Ajar Kamal Naresh Kumar Vandana Bhalla Manoj Kumar 《Environmental science and pollution research international》2013,20(5):3086-3097
The construction and electrodes characteristics of poly(vinylchloride) (PVC)-based polymeric membrane electrode (PME) and coated graphite electrode (CGE), incorporating 1,3-alternate thiacalix[4]crown as ionophore for estimation of Hg(II) ions, are reported here. The best potential response was observed for PME-1 having membrane composition of: ionophore (6.2 mg), PVC (100.0 mg), 2-nitrophenyl octyl ether (2-NPOE; 200.0 mg), and sodium tetraphenyl borate (NaTPB; 2.0 mg); for CGE-1 with the membrane composition: ionophore (3.5 mg), PVC (40.0 mg), 2-NPOE (80.0 mg), and NaTPB (2.0 mg). The electrodes exhibits Nernstian slope of 29.16 mV/decade with PME-1 and 30.39 mV/decade with CGE-1 for Hg(II) ions over wide concentration range, i.e., 1.0?×?10?1 to 5.0?×?10?6?M with PME-1 and 1.0?×?10?1 to 5.0?×?10?7?M with CGE-1. Lower detection limits were found to be 9.77?×?10?6?M for PME-1 and 7.76?×?10?7?M for CGE-1 with response time varying from 10 to 20 s. Also, these electrodes work within pH range of 2.0–6.0 for PME-1 and 1.5–6.5 for CGE-1. Overall, CGE-1 has been found to be better than PME-1. CGE-1 has been used as indicator electrode for the potentiometric titration of Hg(II) ions with EDTA as well as successfully applied for determination of Hg(II) content in wastewater, insecticide, dental amalgam, and ayurvedic medicines samples with very good performance (0.9974 correlation coefficient in the comparison against volumetric method). 相似文献
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Manori Sheetal Shah Vijendra Soni Vandana Dutta Kasturi Daverey Achlesh 《Environmental science and pollution research international》2021,28(42):58872-58884
Environmental Science and Pollution Research - The objective of the present study was to evaluate the feasibility of pine needle biochar as a soil amendment to promote the growth of Bidens pilosa... 相似文献
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Goyal Keshav Goel Harsh Baranwal Pritika Dixit Aman Khan Fahad Jha Niraj Kumar Kesari Kavindra Kumar Pandey Pratibha Pandey Avanish Benjamin Mercilena Maurya Ankit Yadav Vandana Sinh Rana Suryauday Tanwar Pranay Upadhyay Tarun Kumar Mittan Sandeep 《Environmental science and pollution research international》2022,29(41):61993-62013
Environmental Science and Pollution Research - Environmental mutagens are chemical and physical substances in the environment that has a potential to induce a wide range of mutations and generate... 相似文献
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Kumar Pankaj Mishra Vandana Yadav Shalu Yadav Archana Garg Shafali Poria Pankaj Farooqi Furqan Dumée Ludovic F. Sharma Radhey Shyam 《Environmental science and pollution research international》2022,29(40):60212-60231
Environmental Science and Pollution Research - A sectorial approach for assessing heavy metal pollution in rivers neglects the inter-relationship between its environmental compartments and thus... 相似文献