An Endophytic Fungus Gliocladium cibotii Regulates Metabolic and Antioxidant System of Glycine max and Helianthus annuus under Heat Stress
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Department of Botany, Abdul Wali Khan University Mardan, Mardan, Pakistan
Department of Food Science & Technology, Abdul Wali Khan University Mardan, Mardan, Pakistan
Centre of Biotechnology and Microbiology, University of Peshawar, Pakistan
School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea
Submission date: 2020-06-21
Final revision date: 2020-07-26
Acceptance date: 2020-07-27
Online publication date: 2020-11-26
Publication date: 2021-02-05
Corresponding author
Muhammad Hamayun   

Department of Botany, Abdul Wali Khan University Mardan, Garden Campus, 23200, Peshawar, Pakistan
Pol. J. Environ. Stud. 2021;30(2):1631-1640
In the present study, we have isolated endophytic fungi Gliocladium cibotii from Verbena officinalis L. and tested against Oryza sativa L. seedlings for growth promotion. The strain was used to help Glycine max L. and Helianthus annuus L. under thermal stress. Association of G. cibotii with G. max and H. annuus enhanced chlorophyll contents, total biomass and plant height. Also, G. cibotii significantly curtailed lipids peroxidation and ROS (reactive oxygen species) in host species exposed to heat stress (40ºC). Furthermore, the concentration of ROS-degrading enzymes, like ascorbic acid oxidase (AAO), catalase (CAT), glutathione reductase (GR), peroxidase (POD) and superoxide dismutase (SOD) were boosted in test crops, while concentration of proline and ABA were inhibited. The phenolics and nutritional value (total lipids, proteins and sugars) of experimental plants were also enhanced. The results conclude that G. cibotii can be used as a heat stress mitigating weapon for food crops in the future.
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