Environmental Science and Pollution Research

, Volume 26, Issue 17, pp 17163–17172 | Cite as

Silicon-mediated role of 24-epibrassinolide in wheat under high-temperature stress

  • Muzaffer Hussain
  • Tanveer Alam Khan
  • Mohammad Yusuf
  • Qazi FariduddinEmail author
Research Article


High temperature poses a severe extortion to productivity of many crops like wheat. Therefore, well documented roles of brassinosteroid (BR) and silicon (Si) in terms of abiotic stress tolerance, the current study was designed to evaluate the response of wheat (Triticum aestivum L. Var. PBW-343) to 24-epibrassinolide (EBL) mediated by silicon grown under high temperature stress. At 10- and 12-day stage after sowing, the seedlings were administered Si (0.8 mM) through the sand, and the plants at 20, 22, or 24 days after sowing (DAS) were given EBL (0.01μM) through foliage. Plants were treated to high-temperature stress (35/28 or 40/35 °C), for 24 h with 12-h photoperiod in plant growth chamber at 25- and 26-day stage of growth. High temperatures cause significant reduction in growth performance and photosynthesis-related attributes at 35 days after sowing. However, antioxidant enzymes and proline content also augmented substantially with increasing temperature. BR and Si enhanced antioxidant activity and proline content, which was earlier increased by the high temperature. It is established that interaction of EBL and Si considerably improved the growth features, photosynthetic efficacy, and several biochemical traits under high-temperature stress through elevated antioxidant system and osmoprotectant.


Antioxidant Brassinosteroids High temperature Photosynthesis Proline Silicon and Triticum aestivum 



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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Muzaffer Hussain
    • 1
  • Tanveer Alam Khan
    • 2
  • Mohammad Yusuf
    • 3
  • Qazi Fariduddin
    • 1
    Email author
  1. 1.Plant Physiology and Biochemistry Section, Department of BotanyAligarh Muslim UniversityAligarhIndia
  2. 2.Department of Physiology and Cell BiologyLeibniz Institute of Plant Genetics and Crop Plant ResearchGaterslebenGermany
  3. 3.Biology Department, College of ScienceUnited Arab Emirates UniversityAl AinUnited Arab Emirates

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