Boron (B) is an essential nutrient for normal growth of higher plants, and B availability in soil and irrigation water is an important determinant of agricultural production. To date, a primordial function of B is undoubtedly its structural role in the cell wall; however, there is increasing evidence for a possible role of B in other processes such as the maintenance of plasma membrane function...

Aluminum (Al) is the most abundant metal in the earths crust, comprising about 7% of its mass. Since many plant species are sensitive to micromolar concentrations of Al, the potential for soils to be A1 toxic is considerable. Fortunately, most of the A1 is bound by ligands or occurs in other nonphytotoxic forms such as aluminosilicates and precipitates. However, solubilization of this A1 is enh...

Extracts were prepared from 13 native plants used for the treatment of protozoal infections. Activity against bacteria and fungi was demonstrated by dilution procedures; Trypanosoma cruzi was evaluated in vitro against epimastigote and trypomastigotes and in vivo against trypomastigotes. In active extracts, toxicity was evaluated by Artemia salina nauplii, oral acute toxicity (1-5 g/kg) and ora...

Lead has gained considerable attention as a persistent toxic pollutant of concern,partly because it has been prominent in the debate concerning the growing anthropogenic pressure on the environment. The purpose of this review is to describe how plants take lead up and to link such uptake to the ecotoxicity of lead in plants.Moreover, we address the mechanisms by which plants or plant systems de...

Objectives: The natural origin of medicinal plants does not guaranteed their safety, as there are no sufficient studies on the safety, efficacy and toxicity to support their beneficial claims. Hence, this study aimed at investigating the oral acute toxicity of Adansonia digitata L. fruit shell extract on mice. Methods: Maceration method was employed for the extraction of Adansonia digitata fru...

in the present study, the effects of different cadmium (cd) levels of irrigation water (0, 5, 10 and 20 mg l-1) on corn plants (foliage) under different irrigation intervals (1, 3, and 7 days) were investigated. clear cd toxicity symptoms appeared on the plants at the end of the experiment. the results showed that stem dry weight (dw) followed by transpiration (t) and plant height were the meas...

The toxicity effects of silver (nAg) and zinc oxide (nZnO) engineered nanoparticles (ENPs) on the duckweed Spirodela punctuta were studied to investigate the potential risks posed by these ENPs towards higher aquatic plants. The influence of media abiotic factors on the stability of the ENPs was also evaluated. Marked agglomeration of ENPs was observed after introduction into testing media wher...

Phytoremediation counts as a major method for future which essentially needs resistance to contaminating agents. We pretreated the plants (Salix babylonica, as a model plant in phytoremediation of polluted waters) by sodium cyanide (0, 3 and 5 mg CN- L-1) to induce resistance with regard to acclimation and then examined their resistance to higher concentrations of cyanide. Accordingly, some of ...