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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"hyperaccumulation"”.
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The role of Iron Regulated 2 and Iron Regulated Transporter 1 in nickel hyperaccumulation traits in Senecio coronatus
… sought to understand the mechanisms underpinning hyperaccumulation in order to apply them in the phyto-technological processes of phytoremediation (removal of metal pollutants from the environment) and phytomining. However, little is known about the molecular mechanisms underlying Ni …
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Characterization of the intraspecific variation within the nickel (Ni) hyperaccumulator species Senecio coronatus (Asteraceae): a preliminary analysis of genetic population structure and shoot proteome expression
… A prominent difficulty in understanding Ni hyperaccumulation has been the severe lack of intraspecific variation in the trait. Hence, the study of a single species exhibiting a significant degree of variation is highly desirable. as it avoids the use of inter-species comparative studies …
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Functional characterisation of ScIRT1 and ScIREG2 transport proteins in the nickel hyperaccumulator, Senecio coronatus
Nickel hyperaccumulation is a unique plant adaption that has led to roughly 390 plant taxa being able to not only withstand the toxicity associated with Ni but actively translocate it to aerial tissues. However, the underlining molecular mechanisms that drive Ni hyperaccumulation remain unclear. …
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Characterisation of putative metal transport proteins in the nickel hyperaccumulator Senecio coronatus: investigating candidate genes for nickel tolerance and accumulation
… which is a useful model to study nickel hyperaccumulation - as both hyperaccumulator and non-accumulator populations have been identified on nickel-rich serpentine soils in South Africa. The nickel-transporting abilities of three proteins (ScMATE, ScVIT and ScCOP), previously shown to be …
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Interplay between selenium hyperaccumulator plants and their microbiome
… on the same seleniferous site. Thus, hyperaccumulation does not appear to negatively affect rhizobiome diversity, and may select for certain bacterial taxa in the rhizobiome. The bacterial isolates, independent from site or host plant species were in general extremely resistant to …
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Cloning and characterisation of the HMA3 gene and its promoter from Arabidopsis halleri (L.) O'Kane and Al'Shehbaz and Arabidopsis thaliana (L.) Heynhold
… molecular mechanisms behind hypertolerance and hyperaccumulation. Among several potential candidate genes that are probably involved in mediating the zinc-hypertolerant and zinc-hyperaccumulating trait is AhHMA3. The AhHMA3 gene is highly similar to AtHMA3 (AGI number: At4g30120) in A. thaliana, …
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Bioprospecting of plants species with potential to uptake inorganic chemical species from gold mine tailings and acid mine drainage
… bioconcentration factor greater than 10 showing hyperaccumulation ability for species such as B, Co, Zn, Ca, Cd, K, P and Sr. These plants can be used for the phytoremediation of mine tailings. Second part of the thesis focused on characterising mine water discharging from abandoned mine shafts …
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Study of Metal Tolerance / Accumulation in <em>Festuca arundinacea</em> Schreb. From a Serpentine Site in North Carolina
<p>The prevailing conditions in metalliferous soils are usually hostile for plant growth, but some plant species are still able to thrive in these substrates. <em>Festuca arundinacea</em> Schreb. plants were found to thrive on serpentine soils containing high concentrations of Cr and Ni. These …
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The role of abscisic acid in the defence response of tomato (Solanum lycopersicum) to the necrotrophic pathogens Botrytis cinerea and Erwinia chrysanthemi
… response, we have demonstrated that hyperaccumulation of hydrogen peroxide in sitiens leads to cell wall fortification, which results in containment of E. chrysanthemi and B. cinerea. Hydrogen peroxide accumulation in sitiens was accompanied by earlier and increased activation of …