Investigating the Possibility of Increasing the Physiological Function of (Lippia citriodora L. ) Using Biological Stimuli under Salinity Stress Conditions

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DEHGHANI BIDGOLI R.

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Journal: Ecophytochemistry journal of Medicinal Plants Year:2019 | Volume:7 | Issue:3 (27) Page(s): 77-88

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Title

Investigating the Possibility of Increasing the Physiological Function of (Lippia citriodora L. ) Using Biological Stimuli under Salinity Stress Conditions

Author(s)

DEHGHANI BIDGOLI R. | Issue Writer Certificate

Keywords

Essential oilQ2

PGPRQ1

Lippia citriodora L.Q1

Salinity stressQ1

Dry weightQ1

Abstract

Environmental stresses such as salinity are one of the most important factors in the reduction of yield in medicinal plants. Salt stress is recognized as one of the important stressors that reduces the growth of medicinal plants and also the quantity and quality of their effective substances such as alkaloids, glycosides, steroids and volatile oils (Essential oils). So far, many methods have been proposed to cope with Salinity stress. In recent years, plant growth regulator materials such as growth-promoting bacteria, have been used as a way to reduce the effects of salt stress. The experiment was set up as factorial experiment in randomized complete block design with twelve treatments in four replications in spring of 2018 at greenhouse of Kashan University. The experimental factors included 3 levels of salinity of 25, 50 and 100 MM and Plant growth-promoting rhizobacteria (PGPR) Pseudomonas fluorescens which was used in four concentrations of 0 (as a control), 10-10, 10-8 and 10-6 CFU/ml. After deploying the plant in the flowerpot, the PGPR suspension was added to the soil prior to application of Salinity stress. After 45 days, the aerial parts of the plant were harvested, and the Essential oil extraction was carried out with an organic solvent using an SDE device. The results showed that increasing Salinity stress had a significant effect on reducing the growth parameters including Dry weight, root length, plant height, and Essential oil yield. Also, with increasing salinity levels, the percentage of Essential oil showed a significant increase at 1% level, so that Essential oil percentage from 0. 45 in salinity treatment of 25 mm reached to 0. 96 in 100 mm treatment using a concentration of 10-8 CFU/ml bacteria. Based on the results, using growth-promoting bacteria strain increased the Essential oil yield of this plant by reducing the effects of salt stress. Therefore, it seems these bacteria are an appropriate solution for coping with Salinity stress.

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APA: Copy

DEHGHANI BIDGOLI, R.. (2019). Investigating the Possibility of Increasing the Physiological Function of (Lippia citriodora L. ) Using Biological Stimuli under Salinity Stress Conditions. ECO-PHYTOCHEMICAL JOURNAL OF MEDICAL PLANTS, 7(3 (27) ), 77-88. SID. https://sid.ir/paper/364882/en

Vancouver: Copy

DEHGHANI BIDGOLI R.. Investigating the Possibility of Increasing the Physiological Function of (Lippia citriodora L. ) Using Biological Stimuli under Salinity Stress Conditions. ECO-PHYTOCHEMICAL JOURNAL OF MEDICAL PLANTS[Internet]. 2019;7(3 (27) ):77-88. Available from: https://sid.ir/paper/364882/en

IEEE: Copy

R. DEHGHANI BIDGOLI, “Investigating the Possibility of Increasing the Physiological Function of (Lippia citriodora L. ) Using Biological Stimuli under Salinity Stress Conditions,” ECO-PHYTOCHEMICAL JOURNAL OF MEDICAL PLANTS, vol. 7, no. 3 (27) , pp. 77–88, 2019, [Online]. Available: https://sid.ir/paper/364882/en

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