Growth, Phytoremediation Potency and Essential Oil Component of Ferula haussknechtii H.Wolff ex Rech.f. Grown Under Lead Stress Conditions

Document Type: Research and Full Length Article

Authors

1 Associate Professor, Department of Range and Watershed Management, Malayer University, Iran *(Corresponding author), Email: d_akhzari@yahoo.com

2 Department of Medicinal Plant, Research and Technology Institute of Plant Production(RTIPP), Shahid Bahonar University of Kerman, Kerman, Iran

Abstract

Ferula haussknechtii H.Wolff ex Rech.f. is an important oil producing plant belonging to the Apiaceae, family. Up to now, few scientific studies have been conducted on the essential oil composition and phytoremediation potency of this plant. The seeds of the plant were obtained from natural rangelands of Lorestan Province in summer 2016. After seed dormancy breaking treatment, 5 kg plastic pots were planted with the seeds of F. haussknechtii. Afterwards, the plants were exposed to three lead concentrations: 0, 2 and 4 mM (as Pb1, Pb2 and Pb3, respectively). The results revealed that the shoot heights of F. haussknechtii decreased by 5.2 and 28.9% with the application of 2 and 4 mM of lead, respectively, as compared to the control. The maximum value for the survival capacity of the plants was obtained in Pb1 treatment. The root concentration factor (RCF) and translocation factor (TF) values of F. haussknechtii were all less than one. Therefore, this plant is not appropriate for phytoremediation or phytoextraction purposes. The essential oil percent of F. haussknechtii decreased by 21 and 39% with the addition of 2 and 4 mM lead nitrate, respectively, as compared to the control. According to the results of GC-MS, a total of 36 compounds were detected in the essential oils of F. haussknechtii. β-Eudesmol (10.8%), camphor (13.8%), γ-eudesmol (8.7%), α-pinene (5.9%), myrcene (8.9%) and caryophyllene oxide (8.2%) were the main constituents of the essential oil of F. haussknechtii. The addition of lead nitrate affected the constituents of the essential oil of F. haussknechtii.

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