Panda Debabrata, Mandal Lopamudra, Barik Jijnasa, Padhan Bandana, Bisoi Sidhant S
School of Biodiversity, Central University of Odisha, Koraput, Odisha 764021 India.
Department of Botany, Regional Institute of Education, Bhubaneswar, Odisha 751022 India.
Heliyon. 2020 Aug 16;6(8):e04567. doi: 10.1016/j.heliyon.2020.e04567. eCollection 2020 Aug.
Castor ( L.) is a metal tolerant plants and its ability to survive in highly polluted sites as well as its capacity for metal accumulation. There are very few reports on their physiological mechanism of metal tolerance and detoxification under fly ash. Therefore, an experiment was designed to study its biomass accumulation, photosynthetic response and antioxidative metabolism under different levels of fly ash amendments. Significant increase in plant biomass and metal tolerance index was observed in under 50 % fly ash in soil amendments in comparison to the control plants. In addition, photosynthetic activity was not significantly altered under fly ash amended soil in comparison to the garden soil, but these responses/activities were remarkable lowered under bare fly ash. The induction of antioxidant enzymes was also observed in different tissue over control under fly ash treatments. The bioconcentration factor (BCF) of Al, Fe, Zn, Mn, Cu and Cr in were recorded greater than one under fly ash (50%) with soil amendments. Therefore, it concluded that it can be used for phytoremediation of fly ash and fly ash (50%) with soil amendments enhanced phytoremediation ability.
蓖麻（L.）是一种耐金属植物，具有在高污染场地生存的能力以及金属积累能力。关于其在粉煤灰条件下耐金属和解毒的生理机制的报道非常少。因此，设计了一项实验来研究其在不同水平粉煤灰改良剂作用下的生物量积累、光合响应和抗氧化代谢。与对照植物相比，在土壤改良剂中粉煤灰含量为50%时，观察到植物生物量和金属耐受指数显著增加。此外，与花园土壤相比，在粉煤灰改良土壤中光合活性没有显著改变，但在纯粉煤灰下这些响应/活性显著降低。在粉煤灰处理下，与对照相比，不同组织中也观察到抗氧化酶的诱导。在粉煤灰（50%）与土壤改良剂混合的情况下，记录到铝、铁、锌、锰、铜和铬的生物富集系数（BCF）大于1。因此，得出结论，它可用于粉煤灰的植物修复，且粉煤灰（50%）与土壤改良剂混合可增强植物修复能力。
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