Effects of Heavy Metals on Bean Plant

2018

The effects of metals on the ecological system are very important, and their presence on certain limit values has negative effects on the living things. In particular, it has been determined that structural and functional changes are present in plants exposed to metals at high rates. The accumulation of heavy metals in the environment is a serious problem. In this study, the effect of heavy metals such as Co2+, Ni2+, Cu2+ and As3+ on the plant growth of the seeds of Ispir bean (Phaseolus vulgaris L.), a species peculiar to the Ispir region of Erzurum and well known by public, was investigated. As a result, it was observed that when the seeds were exposed to heavy metals, the plant showed an unhealthy growth and was adversely affected.

Journal of Plant Nutrition, 2015

The increasing number of cases of soil contamination by heavy metals has affected crop yields, and represents an imminent risk to food. Some of these contaminants, such as cadmium (Cd) and lead (Pb), are very similar to micronutrients, and thus can be absorbed by plants. This study evaluated the translocation of increasing amounts of cadmium and lead and the effects of these metals in the production of beans. Bean plants were grown in nutrient solution Clark and subjected to increasing levels of Cd (from 0 to 0.5 mg L −1) and Pb (from 0 to 10 mg L −1). Cadmium concentration of 0.1 mg L −1 translocated 39.8% to the shoot, and dry matter production was reduced by 45% in shoots and 80% in roots, compared to the control treatment. Lead showed impaired movement in the plant, however the concentration of 1.0 mg L −1 was observed in 5.7% of metal translocation to the leaves. The concentration of 10 mg L −1 Pb reduced dry matter production of roots and shoots in 83% and 76%, respectively, compared to the control treatment.

length: 190 words, 1101 characters (inc spaces) Word count: 4998 words, 31731 characters (inc spaces) Including critique and future work: 5792 words, 36743 characters (inc spaces) Zn`s effect on health and growth of Eruca Sativa Zn`s effect on health and growth of Eruca Sativa 2 Zn`s effect on health and growth of Eruca Sativa 3 Abstract Background: Rocket (Eruca Sativa) is grown crop around the world and is commonly used in salad; it

2013

The investigations were conducted to determine the effect of soil contamination with mixtures of: lead, copper and cadmium with zinc and nickel on two levels of pollution (acc. to II and III pollution class in IUNG classification) on iron concentrations in broad bean pods and seeds. Broad bean, White Windsor c.v. was cultivated in a control soil with natural heavy metal concentrations (Control and Control+NPK) and in the soil contaminated with the mixtures of heavy metals (Ni+Zn, Ni+Cd, Ni+Pb, Ni+Cu, Zn+Cd, Zn+Pb, Zn+Cu) applied in two doses, or with single heavy metals (Cd, Cu, Ni, Zn and Pb) used in a higher dose. Most of the analyzed heavy metal mixtures did not affect significantly iron concentrations in broad bean pods. Soil contamination with cadmium according to the dose established on the III pollution level acc. to IUNG classification and with a mixture of Ni with Cu and Zn with Cd acc. to the dose corresponding to II level of pollution in IUNG classification led to a decre...

Plant Science Today

Heavy metals are important environmental pollutants, and their toxicity is a serious problem of great concern for environmental, ecological, nutritional and toxicological reasons. Metals can affected long list of physiological and biochemical processes in plants and their toxicity varies with plant species, particular metal, metal concentration and it chemical form. Throughout the world, researches have been conducted extensive investigations to determine the effects of toxic heavy metals on plants. The process is still going on and the need of intensification of the research programmes for better understanding of heavy metal toxicity is evident.

Ecological Chemistry and Engineering. A, 2014

Abstract: The investigations were conducted to determine the effect of soil contamination with mixtures of: lead, copper and cadmium with zinc and nickel on two levels of pollution (acc. to II and III pollution class in IUNG classification) on iron concentrations in broad bean plants. Broad bean, White Windsor c.v. was cultivated in a control soil with natural heavy metal concentrations (Control and Control + NPK) and in the soil contaminated with the mixtures of heavy metals (Ni + Zn, Ni + Cd, Ni + Pb, Ni + Cu, Zn + Cd, Zn + Pb, Zn + Cu) applied in two doses, or with single heavy metals (Cd, Cu, Ni, Zn and Pb) used in a higher dose. Soil contamination with mixtures of Cu and Pb with Zn or Ni and Zn with Ni on the level matching III pollution level in IUNG classification, as well as pollution with mixtures of Cu with Ni and Pb with Zn on the level corresponding to II level of pollution leads to a significant increase in iron concentrations in broad bean shoots but causes its decreas...

2019

Plants efficiently remove contaminants from contaminated environments; however, when the contaminants accumulate in excess in plant tissues, they cause alterations in the vital growth processes of plants. The effects of four heavy metals, which were nickel, manganese, cobalt, and zinc on Lemna spp. and Hydrilla verticillata were investigated. The plants showed a decline in the growth, both chlorophyll and protein concentrations in plant tissues were reduced. Zinc and manganese were the most effective metals in reducing chlorophyll content in Lemna spp. and Hydrilla verticillata respectively, while the metals zinc and nickel were the most among the tested metals in reducing protein content in Lemna spp. and Hydrilla verticillata respectively. The effects of heavy metal concentrations and exposure period to heavy metals on plants’ physiological status were significant, P<0.05. The plants can be used as an effective tool in removing contaminants from contaminated environments and ch...

Journal of Plant Production

Two field and storage experiments were conducted at a private farm near the high ways and Delta company for fertilizers and chemical industries, Talka City, Dakahlia Governorate during the two successive summer seasons of 2009 and 2010 to study the effect of some heavy metals such as copper, lead and manganese by using natural antioxidants substances, i.e., humic acid, vitamin C., vitamin E. and glutathione on tomato (Lycopirsecon esculentum Mill) cv. Alissa and kidney bean (Phaseolus vulgaris L) cv. Giza 3 plants under soil pollution stress. It also aimed to improve the quality and storability of tomato and kidney bean fruits. The most important finding could be summarized as follows: Concerning the effect of the treatments on tomato the obtained results indicate that all natural substances of antioxidant led to significant increases in all vegetative growth parameters compared to the control.  Application of glutathione and vitamin C had a significant effect on plant height, chlorophyll a, chlorophyll b, fresh weight per plant, fruit number per plant and total fruit yield per feddan in both season of this study.  The plant organs (roots, leaves and fruits) for the tomatoes differed in its content from the heavy metals, where the roots contained higher amount of these elements content (Pb, Mn and Cu) than the leaves, while the fruits have the suitable levels of heavy metals content, and that due to the impact of the treatments on the removal of these poisonous elements. Glutathione and vitamin C treatments had a highest significant effect in this respect. The control treatment led to an accumulation of the respective heavy metals content in different plant organs.  All natural substances of antioxidants had a significant increases in quality and storability parameters of tomato fruits, expressed as a reduction in weight loss and decay percent and the preservation of the fruits contents (i.e., acidity, lycopene content, firmness, vitamin C and T.S.S) in comparison with the control of these treatments in both seasons. While, the effect of application of glutathione and vitamin E had a significant effect on most vegetative growth parameters of kidney bean in both seasons of this study.  Glutathione, vitamin C and vitamin E treatments led to significant decrease in heavy metals content (Pb, Mn and Cu) in different plant organs of kidney bean (roots, leaves and fruits) compared to the control treatment in both seasons.  All antioxidant treatments gave significant increases of the fruits quality and improvement storability compared to the control in the two seasons. It could be concluded that application of glutathione, vitamin C and vitamin E as a natural substances of antioxidants to tomato and kidney bean plants indicated that the most effective treatments for improvement quality and storability and alleviate the adverse effects of some heavy metals under soil pollution conditions.

2018

Article History Published Online: 10 November 2018 Heavy metals refer to any metallic element that has relatively high density and is toxic or poisonous even at low concentration. Soils polluted with heavy metals have become come due to increase in anthropogenic and geological activities. Heavy metals enter the food chain through plants. Plants are most important source for humans as well as animals in terms of food medicine etc. Because without plants a man cannot live a long healthy life on earth as plants have a long history for using curing disease of living creatures on earth. This review focuses on the heavy metal stress that makes changes in the morphology of plants like reduction in the growth and productivity and even the production is unsafe for the use.

Biological Research, 2013

The eff ects of nickel, cobalt, chromium and zinc on the content of vitamins A, E and C, malondialdehyde (MDA), chlorophyll and carotenoids were investigated in bean seedlings (Phaseolus vulgaris L.) grown in Hoagland solution Control and heavy metal-treated plants were grown for ten days in Hoagland solution. Vitamin A, E, and C content were measured in primary leaves by high performance liquid chromatographic (HPLC). MDA, chlorophyll and carotenoids were measured in leaves by spectrophotometer. In heavy metal treated plants, the levels of MDA, vitamins A, E and C and carotenoids signifi cantly increased, while chlorophyll content decreased in leaves of seedlings. The results indicate that heavy metals caused an oxidative stress in bean plants. The strongest eff ect on vitamins A, E and C, MDA, chlorophyll and carotenoids was found in plants exposed to nickel, followed by the sequence cobalt > chromium> zinc.