Intensive anthropic activity, like mining and heavy industry, influence the air and soil quality. The ecosystem around is able to react but in some cases water and soil become very polluted, harmful for human health and not suitable for agriculture. The phytoremediation technique is very helpful to rescue contaminated land. A lot of plants are known to be able to uptake and translocate contaminants present in the soil. Some of these plants, the hyperaccumulators, are able to accumulate high amount of contaminants but not all produce high amount of biomass, which is an important parameter for phytoremediation application. Dittrichia viscosa (L) Greuter is a widespread plant in the Mediterranean area and grow on diverse environments, including marginal and contaminated soil. It isn’t a hyperaccumulator plant but it produces high quantity of biomass. We have sampled D. viscosa plants in different area in the Taranto province near and far from the ex- ILVA/Acciaierie di Italia and we analyzed the elemental content in the shoot dividing it in apical, sub-apical and terminal parts. The elements analyzed are differentially accumulated in the three shoot parts. This study can give us information to correlate the stage in which it is better to harvest the plant when used in phytoremediation; for example, for a contaminant accumulated more in the apex could be preferable harvesting the juvenile parts of the plants several time per year. Because the apical part is predominant in the shoot composition. It is also important to notice that the natural biodiversity in the populations of D. viscosa, allow to select plants with different performances on different pollutants uptake supporting further improvements of phytoremediation approaches.
Chemical element distribution analysis in a wild population of Dittrichia viscosa L. in the area of Taranto (Italy)
Barozzi F.;Anglana C.;Capaci P.;Del Piano I.;Letizia F.;Migoni D.;Papadia P.;Fanizzi F. P.;Di Sansebastiano G. P
2023-01-01
Abstract
Intensive anthropic activity, like mining and heavy industry, influence the air and soil quality. The ecosystem around is able to react but in some cases water and soil become very polluted, harmful for human health and not suitable for agriculture. The phytoremediation technique is very helpful to rescue contaminated land. A lot of plants are known to be able to uptake and translocate contaminants present in the soil. Some of these plants, the hyperaccumulators, are able to accumulate high amount of contaminants but not all produce high amount of biomass, which is an important parameter for phytoremediation application. Dittrichia viscosa (L) Greuter is a widespread plant in the Mediterranean area and grow on diverse environments, including marginal and contaminated soil. It isn’t a hyperaccumulator plant but it produces high quantity of biomass. We have sampled D. viscosa plants in different area in the Taranto province near and far from the ex- ILVA/Acciaierie di Italia and we analyzed the elemental content in the shoot dividing it in apical, sub-apical and terminal parts. The elements analyzed are differentially accumulated in the three shoot parts. This study can give us information to correlate the stage in which it is better to harvest the plant when used in phytoremediation; for example, for a contaminant accumulated more in the apex could be preferable harvesting the juvenile parts of the plants several time per year. Because the apical part is predominant in the shoot composition. It is also important to notice that the natural biodiversity in the populations of D. viscosa, allow to select plants with different performances on different pollutants uptake supporting further improvements of phytoremediation approaches.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
