Heavy metals and their general toxicity for plants
نویسندگان
چکیده
منابع مشابه
Heavy Metals Toxicity
A heavy metal is a member of a loosely defined subset of elements that exhibit metallic properties. It mainly includes the transition metals, some metalloids, lanthanides, and actinides. Many different definitions have been proposed based on density, atomic number or atomic weight, and some on chemical properties. Heavy metal toxicity can result in damaged central nervous function, lower energy...
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Introduction Pollution of soil and agricultural land is a complex and serious phenomenon that in re cent decades has increased its negative ef fects on the environment. Transfer of toxic elements to human food chain is a concrete danger that has to be faced, taking into ac count the possibility for plants to accumulate and translocate contaminants to edible and harvested parts (Kloke et al. ...
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Numerous papers have been published which deal with the occurrence of heavy metals in the various components of freshwater ecosystems (Radwan et al. 1990; Scanferlato and Cairns 1990; Hintelmann et al. 1993) and sewage treatment systems (Yetis and Gokcay 1989; Cimino and Caristi 1990; Dilek and Yetis 1992; Melcer et al. 1992; Moriyama et al. 1992). However, only a few papers refer to the presen...
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Iron is essential to virtually all organisms but it can be toxic in excess. High concentration of iron and other trace elements could restricted bacterial growth and modify their metabolic pattern as well. However, this study aimed to find out the influence of iron, chromium, cadmium and synergism or antagonism between these elements on growth of a gram negative bacterium. In the series of expe...
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Phaseolus vulgaris represents a great source of nutrit io n fo r millions of people, and is the second most important legume crop, after soybean. Assessment of environmental contamination on e cology (plant) at molecular and population levels is important in risk quantification and remediation s tud y . Heavy metal toxicity in plants is to induce o xidative s tress linked to oxidation of protei...
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ژورنال
عنوان ژورنال: Plant Science Today
سال: 2018
ISSN: 2348-1900
DOI: 10.14719/pst.2018.5.1.355