Chemical composition variations, allelopathic, and antioxidant activities of Symphyotrichum squamatum (Spreng.) Nesom essential oils growing in heterogeneous habitats

The present study aimed to analyze the chemical composition of Symphyotrichum squamatum EOs growing in two different habitats to explore the ecological implication on the EOs production and evaluate their antioxidant and allelopathic potentialities. The EOs from the aerial parts collected from coast...

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Main Authors: Ahmed M. Abd-ElGawad, Abdelsamed I. Elshamy, Yasser A. El-Amier, Abd El-Nasser G. El Gendy, Sami A. Al-Barati, Basharat A. Dar, Saud L. Al-Rowaily, Abdulaziz M. Assaeed
Format: Article
Language:English
Published: Elsevier 2020-02-01
Series:Arabian Journal of Chemistry
Online Access:http://www.sciencedirect.com/science/article/pii/S1878535219300802
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author Ahmed M. Abd-ElGawad
Abdelsamed I. Elshamy
Yasser A. El-Amier
Abd El-Nasser G. El Gendy
Sami A. Al-Barati
Basharat A. Dar
Saud L. Al-Rowaily
Abdulaziz M. Assaeed
author_facet Ahmed M. Abd-ElGawad
Abdelsamed I. Elshamy
Yasser A. El-Amier
Abd El-Nasser G. El Gendy
Sami A. Al-Barati
Basharat A. Dar
Saud L. Al-Rowaily
Abdulaziz M. Assaeed
author_sort Ahmed M. Abd-ElGawad
collection DOAJ
description The present study aimed to analyze the chemical composition of Symphyotrichum squamatum EOs growing in two different habitats to explore the ecological implication on the EOs production and evaluate their antioxidant and allelopathic potentialities. The EOs from the aerial parts collected from coastal Mediterranean belt and inland abandoned habitats in the Nile Delta of Egypt, were extracted and analyzed using gas chromatography-mass spectrometry. Sixty compounds were characterized as overall constituents of EOs from both samples. Sesquiterpenes were the main component and represented by 69.77% and 88.68% from coastal and inland sample, respectively. The coastal sample attained a relatively high content of monoterpenes compared to the inland sample. Major compounds from the EOs of the coastal habitat sample, were humulene epoxide, (-)-spathulenol, (-)-caryophyllene oxide, germacrene D, and α-humulene representing 59.72%. However, β-pinene, germacrene D, α-humulene, α-muurolene, humulene epoxide, (-)-caryophyllene oxide, and β-cadinene were the major compounds of EOs of the inland habitat sample, representing 63.70%. The correlation analysis revealed more correlation between the Egyptian inland S. squamatum and the Japanese ecospecies. However, the Egyptian coastal S. squamatum and Turkish ecospecies were more correlated to each other. The present data suggested that chemotypes of S. squamatum maintain their typical pattern despite ecological or climatic differences. The EOs of S. squamatum showed moderate antioxidant activity, wherein coastal and inland EOs have an IC50 value of 382.53 and 559.63 μL L−1, respectively. Also, the EOs from both habitats showed moderate allelopathic activity against the noxious weed Bidens pilosa. However, the activity of the coastal sample was more than inland one and could be attributed to the content of the major compounds, especially the oxygenated terpenes. Keywords: Symphyotrichum squamatum, Essential oils, Environmental variables, PCA, Allelopathic potential, Antioxidant activity
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spelling doaj.art-054fec39e73f452baddc7a45d123161b2022-12-22T01:29:32ZengElsevierArabian Journal of Chemistry1878-53522020-02-0113242374245Chemical composition variations, allelopathic, and antioxidant activities of Symphyotrichum squamatum (Spreng.) Nesom essential oils growing in heterogeneous habitatsAhmed M. Abd-ElGawad0Abdelsamed I. Elshamy1Yasser A. El-Amier2Abd El-Nasser G. El Gendy3Sami A. Al-Barati4Basharat A. Dar5Saud L. Al-Rowaily6Abdulaziz M. Assaeed7Plant Production Department, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; Department of Botany, Faculty of Science, Mansoura University, Mansoura 35516, Egypt; Corresponding author at: Plant Production Department, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia.Department of Natural Compounds Chemistry, National Research Centre, 33 El Bohouth St., Dokki, Giza 12622, Egypt; Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, JapanDepartment of Botany, Faculty of Science, Mansoura University, Mansoura 35516, EgyptMedicinal and Aromatic Plants Research Department, National Research Centre, 33 El Bohouth St., Dokki, Giza, EgyptBiology Department, Faculty of Science, Sana'a University, Sana'a 15542, YemenPlant Production Department, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaPlant Production Department, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaPlant Production Department, College of Food & Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi ArabiaThe present study aimed to analyze the chemical composition of Symphyotrichum squamatum EOs growing in two different habitats to explore the ecological implication on the EOs production and evaluate their antioxidant and allelopathic potentialities. The EOs from the aerial parts collected from coastal Mediterranean belt and inland abandoned habitats in the Nile Delta of Egypt, were extracted and analyzed using gas chromatography-mass spectrometry. Sixty compounds were characterized as overall constituents of EOs from both samples. Sesquiterpenes were the main component and represented by 69.77% and 88.68% from coastal and inland sample, respectively. The coastal sample attained a relatively high content of monoterpenes compared to the inland sample. Major compounds from the EOs of the coastal habitat sample, were humulene epoxide, (-)-spathulenol, (-)-caryophyllene oxide, germacrene D, and α-humulene representing 59.72%. However, β-pinene, germacrene D, α-humulene, α-muurolene, humulene epoxide, (-)-caryophyllene oxide, and β-cadinene were the major compounds of EOs of the inland habitat sample, representing 63.70%. The correlation analysis revealed more correlation between the Egyptian inland S. squamatum and the Japanese ecospecies. However, the Egyptian coastal S. squamatum and Turkish ecospecies were more correlated to each other. The present data suggested that chemotypes of S. squamatum maintain their typical pattern despite ecological or climatic differences. The EOs of S. squamatum showed moderate antioxidant activity, wherein coastal and inland EOs have an IC50 value of 382.53 and 559.63 μL L−1, respectively. Also, the EOs from both habitats showed moderate allelopathic activity against the noxious weed Bidens pilosa. However, the activity of the coastal sample was more than inland one and could be attributed to the content of the major compounds, especially the oxygenated terpenes. Keywords: Symphyotrichum squamatum, Essential oils, Environmental variables, PCA, Allelopathic potential, Antioxidant activityhttp://www.sciencedirect.com/science/article/pii/S1878535219300802
spellingShingle Ahmed M. Abd-ElGawad
Abdelsamed I. Elshamy
Yasser A. El-Amier
Abd El-Nasser G. El Gendy
Sami A. Al-Barati
Basharat A. Dar
Saud L. Al-Rowaily
Abdulaziz M. Assaeed
Chemical composition variations, allelopathic, and antioxidant activities of Symphyotrichum squamatum (Spreng.) Nesom essential oils growing in heterogeneous habitats
Arabian Journal of Chemistry
title Chemical composition variations, allelopathic, and antioxidant activities of Symphyotrichum squamatum (Spreng.) Nesom essential oils growing in heterogeneous habitats
title_full Chemical composition variations, allelopathic, and antioxidant activities of Symphyotrichum squamatum (Spreng.) Nesom essential oils growing in heterogeneous habitats
title_fullStr Chemical composition variations, allelopathic, and antioxidant activities of Symphyotrichum squamatum (Spreng.) Nesom essential oils growing in heterogeneous habitats
title_full_unstemmed Chemical composition variations, allelopathic, and antioxidant activities of Symphyotrichum squamatum (Spreng.) Nesom essential oils growing in heterogeneous habitats
title_short Chemical composition variations, allelopathic, and antioxidant activities of Symphyotrichum squamatum (Spreng.) Nesom essential oils growing in heterogeneous habitats
title_sort chemical composition variations allelopathic and antioxidant activities of symphyotrichum squamatum spreng nesom essential oils growing in heterogeneous habitats
url http://www.sciencedirect.com/science/article/pii/S1878535219300802
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