List of Articles Platanus orientalis

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  1 - The effect of air pollution on the morphological traits of the leaves of Platanus orientalis
  sara abbasi Seyed Mohsen Hosseini Nematollah Khorasani Abd al-Reza Karbasi
  10.22034/jest.2020.29152.3812
  Background and Objective: The study of the response and adaptation of the trees' leaves exposed to air pollutants is a good indicator of plant yield in contaminated environments. In this study, the effect of metal contaminants on changing the morphological traits of pla More

  Background and Objective: The study of the response and adaptation of the trees' leaves exposed to air pollutants is a good indicator of plant yield in contaminated environments. In this study, the effect of metal contaminants on changing the morphological traits of platanus orientalis leaves in Chitgar and Azadi Square in Tehran was investigated. Method: Two areas were selected for sampling. Area one was a low-traffic environment (from the interior space of Chitgar Park) and a high-traffic environment (Azadi Square). In each area, five healthy and disease-free tree base of plantain type (Platanus orientalis) were randomly selected at the shortest distance from the street. Completely healthy leaves were collected from the outermost part of each tree canopy from the street side in the first half of September. The leaves were collected at 10 to 11 am. To ensure that the stomata were open. The leaves were put in wrapped nylons in an ice tank with minimal hand contact and transported to the laboratory in the shortest time. Morphological traits of plantain leaves and stomata were measured. Metal concentration was also measured. Findings: Pb, Hg, Fe, Cu, Cr, Co, Cd, and Ni were more polluted than other metals and their toxicity in Azadi was more than Chitgar. The results of the study indicated that in the presence of heavy metal contaminants in the environment, the leaf length, width, area, fresh and dry weight, and the relative water content decreased while the dent per area unit, vein distribution per blade area, and special area of the leaf increased. As Cu increases, the leaf area decreases and the symptoms of Cholosis appear. The accumulation of cadmium, lead and nickel will reduce the size of Mesophile tissue and epidermal cells. Dry and fresh weight of platanus orientalis leaves in Azadi reduced in comparison to Chitgar. The decrease of dry weight is a complication of cadmium toxicity. Stomatal length, width, and size decreased while stomatal density increased. Stomatal strength, stomatal density, and stomatal size increased in upper leaf area. Discussion and Conclusion: By decreasing the contact surface with the pollutant and changing the stomatal size and density, platanus orientalis adjusts gas exchanges with the environment. The occurrence of these morphological adaptations increases the stability of platanus orientalis to the air pollutants stress.   Manuscript profile
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  2 - Survey The Effect of Cadmium on Dry Weight, Growth and Absorbed of Species Tree of Platanus orientalis
  Sahar Tabibian S.Armin Hashemi
  Heavy metals such as Cadmium are created by major urban, industrial and agricultural activities and cause pollution. According to increasing need to forestry in Iran, conducting a comprehensive research on fast-growing Platanus orientalisspecies and its role in absorbin More

  Heavy metals such as Cadmium are created by major urban, industrial and agricultural activities and cause pollution. According to increasing need to forestry in Iran, conducting a comprehensive research on fast-growing Platanus orientalisspecies and its role in absorbing heavy metals like Cadmium is necessary. For this purpose, the leaves and stems of plantain and soil samples from the downtown of Tehran.  Leaves and stems of plantain and soil samples outside of Tehran as controls were selected randomly and were then harvested. Shoot dry weight and accumulation of cadmium in the plant was tested. The results showed that the concentration of cadmium, shoot dry weight was significantly reduced, yet significant differences between shoot dry weight    was observed in the control area and the downtown area. The results showed that the concentration of cadmium, shoot dry weight was significantly reduced, yet significant differences between shoot dry weight was observed in the control area and downtown area of Tehran. The concentration of cadmium in leaves and stems in the control area with the downtown area has significant difference at 95 percent. Manuscript profile
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  3 - The effects of air pollution on some morphological and physiological characteristics of Platanus orientalis L. leaves in Tehran
  Sayyedeh Mahdokht Maddah
  Plantain (Platanus orientalis L.)is an important tree used in green space in Tehran. Due to severe air pollution in Tehran, these trees experience early fall in recent years. The present study in an attempt to find the causes of this phenomenon, measured leaf area, dry More

  Plantain (Platanus orientalis L.)is an important tree used in green space in Tehran. Due to severe air pollution in Tehran, these trees experience early fall in recent years. The present study in an attempt to find the causes of this phenomenon, measured leaf area, dry weight, stomata conductance, stomata resistance, relative leaf humidity, relative chlorophyll concentrations, and the values of calcium, magnesium, lead, and cadmium. Leaves were collected from three regions in Tehran:  Sadra Park  as a clean region, Al-Mahdi Park as the polluted region 1, and Avesta Park as the polluted region 2. Results showed that air pollution causes significant reduction in leaf area and increase in stomatal conductance in Al-Mahdi Park. The highest amounts of magnesium and lead were also observed in Avesta Park plantain leaves. The highest value of cadmium in leaves was recorded in Sadra Park region.  No significant differences were observed in the other traits under study at the collection sites. It seems plantain is able to absorb heavy metals. Manuscript profile
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  4 - Analysis of the physiological responses of the plane and willow trees against air pollution in Tehran .
  Sayyedeh Mahdokht Maddah Farhang Moraghebi
  10.30495/ijpp.2015.539650
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