1,721,085 research outputs found

    Towards Green Remediation: Metal Phytoextraction and Growth Analysis of Sorghum bicolor Under Different Agronomic Management

    No full text
    The role agronomy plays in the management of phytotechnologies is a significant example of the answers that the agrosciences can offer to the issues of society in the field of Green Remediation. This paper reports a study designed to test how the principles of classical plant growth analysis can be used in the field of phytoremediation. In the framework of a phytoremediation field trial set up in Torviscosa (Udine, Italy), Sorghum bicolor was grown receiving mineral fer-tilization, organic amendment, or neither as control. Crop growth was examined following classical functional growth analysis. Leaf area index (LAI), relative growth-rate (RGR) and shoot to weight ratio (SWR) showed how plants be-haved in response to the treatments. Sorghum bicolor showed a poor potential for phytoremediation under our experi-mental conditions. However, some parameters of classical crop growth analysis resulted potentially useful also in the field of phytoremediation

    Synthesis of metal nanoparticles in living plants

    Full text link
    In recent years, nanotechnologies have evolved from a multidisciplinary research concept to a primary scientific field. Rapid growth of new technologies has led to the development of nanoscale device components, advanced sensors, and novel biomimetic materials. In addition to chemical and physical approaches a new, simple and cheaper strategy to synthesize metal nanoparticles utilizes biological tools such as bacteria, yeasts, fungi, and plants. The majority of research has investigated ex vivo synthesis of nanoparticles in plants, proving that this method is very cost effective, and can therefore be used as an economic and valuable alternative for the large-scale production of metal nanoparticles. Instead, very few studies have been devoted to investigating the potential of living plants. The synthesis of metal nanoparticles using living plants is discussed in this review. So far, metal NPs formation in living plants has been observed for gold, silver, copper and zinc oxide. To date the results achieved demonstrate the feasibility of this process; however several aspects of the plant physiology involved should be clarified in order to be able to gain better control and modulate the formation of these new materials. Plant sciences could significantly contribute to fully exploring the potential of phyto-synthesis of metal nanoparticles
    corecore