Do different wheat ploidy levels respond differently against stripe rust infection : Interplay between reactive oxygen species (ROS) and the antioxidant defense system?

Bibliographische Detailangaben
Veröffentlicht in:	Plant physiology and biochemistry : PPB. - 1991. - 219(2024) vom: 09. Nov., Seite 109259
1. Verfasser:	Jan, Farkhandah (VerfasserIn)
Weitere Verfasser:	M, Parthiban, Kaur, Satinder, Khan, Mohd Anwar, Sheikh, Farooq Ahmad, Wani, Fehim Jeelani, Saad, A A, Singh, Yogita, Kumar, Upendra, Gupta, Vikas, Thudi, Mahendar, Saini, Dinesh K, Kumar, Sundeep, Varshney, Rajeev Kumar, Mir, Reyazul Rouf
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2024
Zugriff auf das übergeordnete Werk:	Plant physiology and biochemistry : PPB
Schlagworte:	Journal Article Antioxidants Diploid wheat Disease resistance Hexaploid wheat ROS Stripe rust Tetraploid wheat

Beschreibung
Zusammenfassung:	Copyright © 2024 Elsevier Masson SAS. All rights reserved. Wheat stripe rust (Puccinia striiformis f. sp. tritici, Pst) is the most damaging wheat disease, causing substantial losses in global wheat production and productivity. Our study aimed to unravel the complex reciprocity between reactive oxygen species and the antioxidant defense system as a source of resistance against stripe rust in diploid, tetraploid and hexaploid wheat genotypes. The significant genetic variability for stripe rust in the materials under study was evident as the genotypes showed contrasting responses during both the adult and seedling stages. Our thorough perspective on the biochemical responses of wheat genotypes to stripe rust infection revealed distinct patterns in oxidative damage, antioxidant enzymes and photosynthetic pigments. Principal component analysis revealed inverse correlations between antioxidants and ROS, underscoring their key function in maintaining the cellular redox balance and protecting plants against oxidative damage. Diploid (Ae. tauschii) wild wheat exhibited a better biochemical defense system and greater resistance to stripe rust than the tetraploid (T. durum) and hexaploid (Triticum aestivum) wheat genotypes. The antioxidant enzyme activity of durum wheat was moderate compared to diploid and hexaploid wheat genotypes. The hexaploid wheat genotypes exhibited increased ROS production, reduced antioxidant enzyme activity and decreased photosynthetic pigment levels. This study enhances understanding of the antioxidant defense system across different wheat ploidies facing stripe rust, serving as a valuable strategy for improving crop disease resistance. This study validated the biochemical response of stripe rust-resistant and susceptible candidate genotypes, which will be used to develop genetic resources for discovering stripe rust resistance genes in wheat
Beschreibung:	Date Revised 03.12.2024 published: Print-Electronic Citation Status Publisher
ISSN:	1873-2690
DOI:	10.1016/j.plaphy.2024.109259