List of Articles محمد مقدم

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  1 - Phytochemical changes of Dracocephalum moldavica L. Essential oil under different salinity stresses and application of humic and ascorbic acid
  rasoul narimani Mohhamad Moghaddam Prof. Abdollah Ghasemi Pirbalouti
  20.1001.1.23223235.1398.7.4.3.2
    Abstract Salinity is one of the most important ecological stresses which reduces productivity. Humic acid as an organic acid and ascorbate as a strong antioxidant can be effective in improving plant yield under salinity stress.In this study, to investigate the ef More

    Abstract Salinity is one of the most important ecological stresses which reduces productivity. Humic acid as an organic acid and ascorbate as a strong antioxidant can be effective in improving plant yield under salinity stress.In this study, to investigate the effect of ascorbic acid and humic acid on the amount and chemical constituents of essential oil (Dracocephalum moldavica L.) under salinity stress, a factorial experiment in a completely randomized design with three replications was conducted at research greenhouse of faculty of Agriculture, Ferdowsi University of Mashhad, Iran. Treatments included salinity at four levels (0, 50, 100 and 150 mM), humic acid and ascorbic acid at three levels (0, 100 and 200 mg / l).The aerial parts of plant in blooming were collected and were extracted by steam distillation method using Clevenger apparatus and its components were separated and identified by gas chromatography and gas chromatography coupled to mass spectrometry. The essential oil content decreased with increasing salinity stress and application of salt stress moderators (ascorbic acid and humic acid) improved this trait. So that at 150 mM salinityit reached to the lowest level (0.2%) and application of 200 mg / l humic acid increased 51.61% of essential oil compared to control. Most of the essential oil constituents in control treatment (no use of moderators and no salinity conditions) were geranial (36.65%), neral (31.94%), geraniol (15.56%), geranyl acetate (0.66), Trans- 4,2- heptadienal (1/25%), linalool (1.09%), pulegone (0.95%) and verbenol (0.4%) which included 99.5% of the essential oil components respectively by 36.65, 31.94, 15.56, 11.66, 1.25, 1.09, 0.95 and 0.4 percent. In different levels of salinity stress with 100 mg/l of humic acid treatment and application of salt stress moderators (100 and 200 mg/l ascorbic acid and 200 mg/l of humic acid) a large number of combinations was observed compared to control treatment. These includedalpha-pinene, beta-pinene, camphene, camphor, alpha-thujone, nerol and thymol.   Manuscript profile
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  2 - Evaluation of the total phenolic and antioxidant activity of the 80 different populations belong to the Jashir genus (Prangos spp.)
  Peyman Azarkish Mohammad Moghaddam Prof. Abdollah Ghasemi Pirbalouti Fatimah Khakdan
  10.30495/ejmp.2021.682557
  20.1001.1.23223235.1400.9.1.2.9
  Jashir (Prangos spp.) is a medicinal plant and native plant to some parts of Iran that is used in traditional medicine in the treatment of many diseases. This study aimed to investigate the total phenol content and antioxidant activity of aerial parts of 80 populations More

  Jashir (Prangos spp.) is a medicinal plant and native plant to some parts of Iran that is used in traditional medicine in the treatment of many diseases. This study aimed to investigate the total phenol content and antioxidant activity of aerial parts of 80 populations belonging to seven species P. hausslmechtii, P. lophoptera, P. corymbosa, P. uloptera, P. acaulis, P. platychlaena, and P. ferulacea at the flowering stage in spring and summer 2018 in six provinces of Lorestan, Isfahan, Fars, Khuzestan, Kohgiluyeh and Boyer-Ahmad, and Chaharmahal and Bakhtiari as a randomized complete block design. Methanol extracts of plants were obtained by the maceration method. Total phenol content and antioxidant activity were determined by Folin-Ciocalteu and DPPH (1,1- diphenyl-2-picrylhydrazyl) methods, respectively. ANOVA and Duncan's tests were used for statistical analysis. The results showed that there is a difference between populations and different species of Jashir genus in terms of total phenol content and antioxidant activity. The total phenol content of these extracts belonging to 80 populations was different and ranged from 17.59 to 1.76 mg gallic acid/g extract and their antioxidant activity ranged from 61.77 to 96.2%. The highest total phenol content and antioxidant activity were observed in populations 5 (P. acaulis) and 48 (P. platychloena), and the lowest amount obtained from populations 80 (P. platychloena) and 36 (P. platychloena). Among seven species of Prangos spp., the highest amount of total phenol content and antioxidant activity was found in P. uloptera and P. acaulis. Due to the high antioxidant properties of Prangos spp. and because of the possible carcinogenicity of synthetic antioxidants, different species of this genus especially P. uloptera and P. acaulis are suggested as suitable substitutes for preservatives. So they can be used as rich and accessible resources in the food and pharmaceutical industries Manuscript profile
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  3 - Investiganting the effect of methyl jasmonate and titanium dioxide nanoparticles on physiological and phytochemical variations of Rosa damascena. Mill. esential oil
  Zahra Allahverdi Mehrab Yadegari Mohammad Moghaddam
  10.30495/ejmp.2023.702419
  20.1001.1.23223235.1402.11.1.8.9
  Rosa damascena Mill. belongs to Rosaceae family and is considered as one of the most important medicinal and industrial plant. In the present study, the effects of foliar application of methyl jasmonate and titanium dioxide nanoparticles were investigated on physiologic More

  Rosa damascena Mill. belongs to Rosaceae family and is considered as one of the most important medicinal and industrial plant. In the present study, the effects of foliar application of methyl jasmonate and titanium dioxide nanoparticles were investigated on physiological and phytochemical traits of Rosa damascena Mill. in two separate experiments based on a randomized complete block design with 3 replications in Farsan during two growing seasons (2019 and 2020). Foliar application of methyl jasmonate (0, 0.5, 1, and 2 mM) and titanium dioxide nanoparticles (0, 100, 200, and 300 mg L-1) was performed three times with 4-day intervals before the flowering stage. Essential oil extraction was done by steam distillation (a clevenger apparatus), phytochemical evaluation was performed using spectrophotometric method, and antioxidant performance was evaluated through DPPH test. Results showed that foliar application of elicitors increased dry weight of leaves and photosynthetic pigments. The phenolic compounds of leaves and petals of R. damascena Mill. also increased in response to applied elicitors and the highest increment was observed in plants treated with 1 mM methyl jasmonate and 100 mg L-1 titanium dioxide nanoparticles. Also the results showed the positive effect of applied treatments on increasing macro (N, P, K and Mg) and micro elements (Fe, Mn, and Zn) in leaves of damask rose. Methyl jasmonate (0.5-1 mM) increased the essential oil content of the treated plants by 34.32%. According to the obtained results, methyl jasmonate applied at concentration of 1 mM is suggested to improve the physiological and phytochemical characteristics of the R. damascena plants. Manuscript profile