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In this paper, flue-cured tobacco cultivar (Nicotiana tabacum L. K 326) was selected to explored responses of flue-cured tobacco plants to different concentration of lead (Pb) or cadmium (Cd). The plants were grown in nutrient solution in lab under the controlled condition. Research showed dry weights of each organ and whole plant and values of botany characters and Chlorophyll contents of upper leaf...
Soils and dominant plants were surveyed in the Siding mineland area. Based on the determination of heavy metal concentration of soil from 8 sections and 14 dominant plant species in different parts, the potential ecological risk was assessed using the Hakanson Index Method. The results indicated that the soil of Siding mineland area was seriously contaminated by Pb and Zn. The risk index values of...
To understand the physiological and biochemical response of the lead-accumulator plant pseudostellaria maximowicziana (Franch.et Savat.) Pax to lead and zinc stresses, the pot experiment was used to study the protective enzymes (SOD, CAT and POD) activity and MDA content of pseudostellaria maximowicziana under lead and zinc stresses. The results showed as follows: with the increase of lead concentration,...
Heavy metal accumulations in edible plants are commonly reported by scientist to alert the public on potential risks of toxicity effects. The study was conducted to determine the heavy metal accumulation in different part of the plant tissue namely Ipomoea reptans and Helianthus annuus. Spent batteries were utilized as the source of contamination with natural leaching process. Results indicated that...
The plant could adapt to heavy metal conditions in soil to some extent. To study the adaptation process of rice plants under zinc, chromium stress, the effects of zinc, chromium in the soil on metabolism of rice (Oryza sativa L.) roots were investigated by soil pot experiments at tillering, booting and filling stages of rice plants. In the experiment, with the augment of zinc or chromium concentrations,...
Drinking waters worldwide have experienced an increase in the occurrence of harmful algal blooms. Nutrients variance is hypothesised to be the main factor that causes algae populations outbreaks. The effects of trace nutrients and their interaction on the proliferation of planktonic algae colony, is one of the most complex factor in the formation process of algae blooms, and in addition the factor...
The plant C2H2-type zinc finger proteins play important roles in plant tolerance to abiotic stresses. In this study, we isolated the full-length cDNA of a C2H2-type zinc finger protein gene AhZFP1 from peanut (Arachis hypogaea L.). AhZFP1 encodes a 24.75kDa protein with two C2H2-type zinc finger domains. Phylogenetic analysis showed that the AhZFP1 was close to Arabidopsis zinc finger protein AZF2...
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