ISSN: 0973-7510

E-ISSN: 2581-690X

Research Article | Open Access
Abhaya Kumar Sahu1, Punam Kumari1 and Bhabatosh Mittra1,2
1P.G.Department of Biosciences and Biotechnology, Fakir Mohan University, Vyasa Vihar, Balasore – 756089, Odisha, India.
2MITS School of Biotechnology, Bhubaneswar- 751024, Odisha, India.
Article Number: 8397 | © The Author(s). 2024
J Pure Appl Microbiol. 2024;18(1):229-242. https://doi.org/10.22207/JPAM.18.1.06
Received: 01 January 2023 | Accepted: 28 April 2023 | Published online: 25 January 2024
Issue online: March 2024
Abstract

Wheat (Triticum aestivum) employs various strategies to defend against Fusarium oxysporum, a soil-borne vascular fungal pathogen that disrupts structural integrity and metabolism. The purpose of this research was to ascertain the alterations of anatomical and biochemical responses in wild-type (WT) and DPA-treated wheat (T. aestivum) seedlings exposed to F. oxysporum. The WT and DPA-treated seedlings showed disorganization of parenchyma cells, sclerenchyma cells, vascular bundles (VBs), and lower numbers of xylem (Xy) and phloem (Ph) cells, and reduced thickness of the cuticle layer (C) at the epidermal layer of shoots. The content of chlorophyll (Chl), carbohydrate, and nucleic acid was reduced in WT and DPA-treated seedlings during infection. Enhanced defense responses through peroxidase (POD), and polyphenol oxidase (PPO) was observed to be high in WT as compared to DPA-treated seedlings under stress condition. In addition, the content of salicylic acid (SA) and phenolics was increased in WT than DPA under stress condition. However, the DPA-treated seedlings showed enhanced growth of fungal mycelia compared to WT during stress condition. Hence, the anatomical and biochemical aspects of DPA-treated seedlings decreased as compared to WT when exposed to F. oxysporum.

Keywords

Triticum aestivum, Fusarium oxysporum, Anatomy, PPO, SA, Phenolics

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© The Author(s) 2024. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.