Preface: Toxic metals in plants

Azevedo, Ricardo Antunes; Lea, Peter J.

doi:10.1590/s1677-04202005000100001

Cited by 20 publications

(12 citation statements)

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“…In Modern civilization, it is considered that heavy metals produced by different anthropogenic activities such as factories, transportation and by using agricultural pesticide and fertilizers which cause pollution to the atmosphere. Excessive levels of heavy metals are dangerous to plants, animals and human health (Järup, 2003; Azevedo and Lea, 2005). Presently, contamination of soil in cultivated fields containing harmful heavy metals such as cadmium, lead, copper, nickel and zinc has appeared as a new threat to agriculture (Singh et al., 2007) and hazardous health problems.…”

Section: Introductionmentioning

confidence: 99%

Induction of phenotypic diversity in mutagenized population of lentil (Lens culinaris Medik) by using heavy metal

Shahwar

Ansari

Choudhary

2019

Heliyon

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Pulse breeding has been performed in the past by utilizing the genetic variability using conventional method. At the present time, these techniques are insufficient for producing new cultivars to fulfill globally increased food demand. In this situation, induced mutagenesis have been appeared as a new technique which are largely utilized for evolving improved mutants with good quality of agronomic traits and for determining desired genes that control agronomical traits. In the present investigation lentil seeds were mutagenized with different doses (5, 10, 15, 20 and 25 ppm) of lead and cadmium nitrate. M 2 generation was raise from collected seeds of M 1 generation. Distinct morphological mutants were selected with different traits such plant height, growth habit, leaf morphology, flower character, pigmentation and pod size. Different meiotic aberration such as stickiness, precocious separation of chromosome, unequal division, disturbed polarity with laggards, cytomixis, disorientation, unpolarized chromosome, sticky metaphase, multinucleate condition with micronuclei were also observed in this experiment. Some mutants may be utililised directly in selection or some of these are beneficial in breeding programme. Beneficial mutants were determined at lower concentrations both heavy metals with highest mutation frequency in cadmium than lead nitrate.

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Section: Introductionmentioning

confidence: 99%

Induction of phenotypic diversity in mutagenized population of lentil (Lens culinaris Medik) by using heavy metal

Shahwar

Ansari

Choudhary

2019

Heliyon

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“…Their release creates pollution into the atmosphere [3] and hence these are potential hazard for plant growth and development [2]. They produce toxic affects upon plants, animals as well as human health [4,5]. Toxic heavy metals concentrated in the plant tissues comes from the common practices of sewage and industrial discharge on agricultural land.…”

Section: Introductionmentioning

confidence: 99%

Effects of diverse doses of Lead (Pb) on different growth attributes of <i>Zea-Mays</i> L.

Hussain¹,

Abbas²,

Arshad³

et al. 2013

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The aim of the investigation was to determine the potential effect of lead on maize growth. Lead is considered as important potent environmental contaminant. Various ecological, environmental and evolutionary processes in the microsphere are disrupted because of lead toxicity to the microbial community. The effects of Lead Nitrate (Pb(No 3 ) 2 ) as heavy metal on germination, early growth seedling, root-shoot length, root-shoot fresh and dry weights, total protein content and the uptake of lead by roots and shoots of Zea-mays were investigated. All of the parameters were reduced by the increased lead concentrations. Such growth retardation was due to metals toxicity that resulted in damages to various physiological and biochemical processes.

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“…The environment of the city of Karachi is deteriorating rapidly since the last couple of decade due to various types of pollutants emitted from various types of anthropogenic activities affecting the growth of plants. Metals are of special interest with respect to the toxicological importance to human health, plants and animals (Azevedo andLea, 2005, Jarup, 2003). Lead and cadmium are the toxic elements of primary importance (Breckle and Kahile, 1992).…”

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confidence: 99%

Effect of lead and cadmium on germination and seedling growth of <i>Leucaena leucocephala</i>

Shafiq¹,

Iqbal²,

Armin³

2010

Journal of Applied Sciences and Environmental Management

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ABSTRACT:A study was conducted to determine the effect of different concentrations of lead and cadmium on seed germination and seedling growth of Leucaena leucocephala. Seed were grown under laboratory conditions at 25, 50, 75 and 100 ppm of metal ions of lead and cadmium. Both lead and cadmium treatments showed toxic effects on various growth indices of L. leucocephala. Increasing the concentration of lead to 75 ppm, significantly (p<0.05) decreased seed germination as compared to control. Seedling and root growth was significantly (p<0.05) reduced at 50 ppm treatment of lead. Seed germination and root length significantly (p<0.05) decreased at 50 ppm treatment of cadmium as compared to control. The seedling dry weight also significantly (p<0.05) reduced at 25 ppm treatment of lead and cadmium. Cadmium treatment at 100 ppm showed comparatively pronounced effects in L. leucocephala seedlings as compared to lead. The results of the study suggest that due to better metal tolerance indices there is a possibility of growing L. leucocephala in areas contaminated with lead and cadmium. @ JASEM

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Preface: Toxic metals in plants

Cited by 20 publications

References 0 publications

Induction of phenotypic diversity in mutagenized population of lentil (Lens culinaris Medik) by using heavy metal

Induction of phenotypic diversity in mutagenized population of lentil (Lens culinaris Medik) by using heavy metal

Effects of diverse doses of Lead (Pb) on different growth attributes of <i>Zea-Mays</i> L.

Effect of lead and cadmium on germination and seedling growth of <i>Leucaena leucocephala</i>

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Preface: Toxic metals in plants

Cited by 20 publications

References 0 publications

Induction of phenotypic diversity in mutagenized population of lentil (Lens culinaris Medik) by using heavy metal

Induction of phenotypic diversity in mutagenized population of lentil (Lens culinaris Medik) by using heavy metal

Effects of diverse doses of Lead (Pb) on different growth attributes of &lt;i&gt;Zea-Mays&lt;/i&gt; L.

Effect of lead and cadmium on germination and seedling growth of <i>Leucaena leucocephala</i>

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Effects of diverse doses of Lead (Pb) on different growth attributes of <i>Zea-Mays</i> L.