High resistance of Panicum miliaceum L. to phenanthrene toxicity based on growth response and antioxidant system assessment

<p>Polycyclic aromatic hydrocarbons are a group of organic pollutants influencing different aspects of plants physiology. Physiological responses associated with the impact of phenanthrene (500, 1000, 1500, 2000 ppm) were analysed on Panicum miliaceum L. Seed germination was delayed in all tre...

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Autores principales:	Sarieh TARIGHOLIZADEH, Rouhollah MOTAFAKKERAZAD, Seyed Yahya SALEHI-LISAR, Elham MOHAJEL KAZEMI
Formato:	article
Lenguaje:	EN SL
Publicado:	University of Ljubljana, Biotechnical Faculty 2021
Materias:	polycyclic aromatic hydrocarbons panicum miliaceum phenanthrene physiological responses toxicity Agriculture S
Acceso en línea:	https://doaj.org/article/878fb44cdaa94d2f8a239b3b6466448a
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spelling	oai:doaj.org-article:878fb44cdaa94d2f8a239b3b6466448a2021-11-10T09:25:10ZHigh resistance of Panicum miliaceum L. to phenanthrene toxicity based on growth response and antioxidant system assessment1581-91751854-194110.14720/aas.2021.117.2.1987https://doaj.org/article/878fb44cdaa94d2f8a239b3b6466448a2021-07-01T00:00:00Zhttp://ojs.aas.bf.uni-lj.si/index.php/AAS/article/view/1987https://doaj.org/toc/1581-9175https://doaj.org/toc/1854-1941<p>Polycyclic aromatic hydrocarbons are a group of organic pollutants influencing different aspects of plants physiology. Physiological responses associated with the impact of phenanthrene (500, 1000, 1500, 2000 ppm) were analysed on Panicum miliaceum L. Seed germination was delayed in all treatments and 2000 ppm of phenanthrene (PHE) significantly retarded the germination rate (28 %) compared to control. The results revealed after 30 day of cultivation, only 1500 and 2000 ppm of PHE had negative impacts on growth parameters as well as photosynthetic pigment contents. Plants exposed to 500 and 1000 ppm of PHE showed an increase in the growth parameters without any symptoms of toxicity, indicating the high tolerance of seedlings to PHE. The activities of antioxidant enzymes were elevated in treated plants. In higher concentrations, H2O2 content also increased despite a reduction in malondialdehyde content. Furthermore, PHE had no effect on root phenol and shoot flavonoid contents and on shoot and root protein contents. Taken together, only higher concentrations of PHE triggered oxidative stress. It can be concluded PHE was not very toxic to P. miliaceum probably because of higher activity of antioxidant system involving in elimination of produced ROS even in plants treated by PHE higher concentrations.</p>Sarieh TARIGHOLIZADEHRouhollah MOTAFAKKERAZADSeyed Yahya SALEHI-LISARElham MOHAJEL KAZEMIUniversity of Ljubljana, Biotechnical Facultyarticlepolycyclic aromatic hydrocarbonspanicum miliaceumphenanthrenephysiological responsestoxicityAgricultureSENSLActa Agriculturae Slovenica, Vol 117, Iss 2, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN SL
topic	polycyclic aromatic hydrocarbons panicum miliaceum phenanthrene physiological responses toxicity Agriculture S
spellingShingle	polycyclic aromatic hydrocarbons panicum miliaceum phenanthrene physiological responses toxicity Agriculture S Sarieh TARIGHOLIZADEH Rouhollah MOTAFAKKERAZAD Seyed Yahya SALEHI-LISAR Elham MOHAJEL KAZEMI High resistance of Panicum miliaceum L. to phenanthrene toxicity based on growth response and antioxidant system assessment
description	<p>Polycyclic aromatic hydrocarbons are a group of organic pollutants influencing different aspects of plants physiology. Physiological responses associated with the impact of phenanthrene (500, 1000, 1500, 2000 ppm) were analysed on Panicum miliaceum L. Seed germination was delayed in all treatments and 2000 ppm of phenanthrene (PHE) significantly retarded the germination rate (28 %) compared to control. The results revealed after 30 day of cultivation, only 1500 and 2000 ppm of PHE had negative impacts on growth parameters as well as photosynthetic pigment contents. Plants exposed to 500 and 1000 ppm of PHE showed an increase in the growth parameters without any symptoms of toxicity, indicating the high tolerance of seedlings to PHE. The activities of antioxidant enzymes were elevated in treated plants. In higher concentrations, H2O2 content also increased despite a reduction in malondialdehyde content. Furthermore, PHE had no effect on root phenol and shoot flavonoid contents and on shoot and root protein contents. Taken together, only higher concentrations of PHE triggered oxidative stress. It can be concluded PHE was not very toxic to P. miliaceum probably because of higher activity of antioxidant system involving in elimination of produced ROS even in plants treated by PHE higher concentrations.</p>
format	article
author	Sarieh TARIGHOLIZADEH Rouhollah MOTAFAKKERAZAD Seyed Yahya SALEHI-LISAR Elham MOHAJEL KAZEMI
author_facet	Sarieh TARIGHOLIZADEH Rouhollah MOTAFAKKERAZAD Seyed Yahya SALEHI-LISAR Elham MOHAJEL KAZEMI
author_sort	Sarieh TARIGHOLIZADEH
title	High resistance of Panicum miliaceum L. to phenanthrene toxicity based on growth response and antioxidant system assessment
title_short	High resistance of Panicum miliaceum L. to phenanthrene toxicity based on growth response and antioxidant system assessment
title_full	High resistance of Panicum miliaceum L. to phenanthrene toxicity based on growth response and antioxidant system assessment
title_fullStr	High resistance of Panicum miliaceum L. to phenanthrene toxicity based on growth response and antioxidant system assessment
title_full_unstemmed	High resistance of Panicum miliaceum L. to phenanthrene toxicity based on growth response and antioxidant system assessment
title_sort	high resistance of panicum miliaceum l. to phenanthrene toxicity based on growth response and antioxidant system assessment
publisher	University of Ljubljana, Biotechnical Faculty
publishDate	2021
url	https://doaj.org/article/878fb44cdaa94d2f8a239b3b6466448a
work_keys_str_mv	AT sariehtarigholizadeh highresistanceofpanicummiliaceumltophenanthrenetoxicitybasedongrowthresponseandantioxidantsystemassessment AT rouhollahmotafakkerazad highresistanceofpanicummiliaceumltophenanthrenetoxicitybasedongrowthresponseandantioxidantsystemassessment AT seyedyahyasalehilisar highresistanceofpanicummiliaceumltophenanthrenetoxicitybasedongrowthresponseandantioxidantsystemassessment AT elhammohajelkazemi highresistanceofpanicummiliaceumltophenanthrenetoxicitybasedongrowthresponseandantioxidantsystemassessment
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High resistance of Panicum miliaceum L. to phenanthrene toxicity based on growth response and antioxidant system assessment

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