نتایج جستجو برای: hyperaccumulator plants
تعداد نتایج: 198348 فیلتر نتایج به سال:
Hyperaccumulators are being intensely investigated. They are not only interesting in scientific context due to their "strange" behavior in terms of dealing with high concentrations of metals, but also because of their use in phytoremediation and phytomining, for which understanding the mechanisms of hyperaccumulation is crucial. Hyperaccumulators naturally use metal accumulation as a defense ag...
Metallothioneins are cysteine-rich metal-binding proteins. In the present study, SaMT2, a type 2 metallothionein gene, was isolated from Cd/Zn co-hyperaccumulator Sedum alfredii Hance. SaMT2 encodes a putative peptide of 79 amino acid residues including two cysteine-rich domains. The transcript level of SaMT2 was higher in shoots than in roots of S. alfredii, and was significantly induced by Cd...
Cadmium (Cd) is a widespread, naturally occurring element present in soil, rock, water, plants and animals. Cd is a non-essential element for plants and is toxic at higher concentrations. Transcript profiles of roots of Arabidopsis thaliana (Arabidopsis) and Thlaspi caerulescens plants exposed to Cd and zinc (Zn) are examined, with the main aim to determine the differences in gene expression be...
Dark septate endophytes (DSEs) can improve plant stress tolerance by promoting growth and affecting element accumulation. Due to its ability accumulate high Cd, Zn, Ni concentrations in shoots, Noccaea caerulescens is considered a promising candidate for phytoextraction the field. However, of DSEs trace (TE) with N. has not yet been studied. The aim this study was therefore determine five DSE s...
Copper (Cu) is essential to plants but can also be harmful due Fenton chemistry. Because of that, it necessary keep Cu within a narrow concentration limit. Plants evolved mechanisms sense and precisely regulate uptake accumulation avoid both deficiency toxicity. However, experience variable levels in soils, natural environments as well human’s-based farming practices that lead soils. Therefore,...
Two strategies of phytoextraction have been shown to have promise for practical soil remediation: domestication of natural hyperaccumulators and bioengineering plants with the genes that allow natural hyperaccumulators to achieve useful phytoextraction. Because different elements have different value, some can be phytomined for profit and others can be phytoremediated at lower cost than soil re...
Different hyperaccumulator plants growing in the same contaminated soil may have excessive accumulation of different metals or produce biomass. Therefore, it is important to determine ability plant improve under natural conditions improvement heavy metal-contaminated lands with plants. This study focused on phytoremediation and biomass production capabilities Artemisa Dracunculus L. Erigeron Ca...
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