Diverse responses of old, modern and landraces of Syrian wheat genotypes to common root rot under field conditions

Arabi, M. I. E.; Al-Shehadah, E.; Jawhar, M.

doi:10.2478/hppj-2019-0009

Cited by 3 publications

(8 citation statements)

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“…The genotypes were screened previously against B. sorokiniana under both greenhouse and field conditions, as described by Arabi et al . (2019) and Nasr‐Esfahani et al . (2012), at the Agricultural and Natural Resource Research and Education Center, Isfahan, Iran, during 2015–2016 and 2016–2017 growing seasons (Samiei et al .…”

Section: Methodsmentioning

confidence: 98%

“…Thirty-three wheat genotypes, including domestic, exotic cultivars and inbreeding lines were provided by the Seed Institute, and Plant Improvement Karaj, Iran (Table S1). The genotypes were screened previously against B. sorokiniana under both greenhouse and field conditions, as described by Arabi et al (2019) and Nasr-Esfahani et al (2012), at the Agricultural and Natural Resource Research and Education Center, Isfahan, Iran, during 2015-2016 and 2016-2017 growing seasons (Samiei et al 2008). Three resistant 'Bam', 'Mehregan' and 'Alvand', and three susceptible 'Heidari' 'Karkheh' and 'Behrang' wheat genotypes were selected, and re-inoculated, as above, with B. sorokiniana for further studies (Moatamedi et al 2017).…”

Section: Plant Materialsmentioning

confidence: 99%

“…The best way to control this disease is to use resistant or tolerant wheat genotypes (Arabi et al . 2019). Resistant cultivars have been evaluated from different morphological, physiological, chemical and molecular aspects (Ghasemi et al .…”

Section: Introductionmentioning

confidence: 99%

“…Shoemaker (Pleosporaceae) that is common in some tropical and temperate regions (Zolfaghary et al 2021). Seedling burns, brown spots on the leaves, root rot and black point are important limiting factors in hot and humid regions worldwide (Arabi et al 2019;Al-Sadi 2021). The rate of damage and decreased crop yield due to this disease vary in different regions, but losses of 35% in wheat yield has been estimated in 12% of the total wheat cultivation area in the Pacific Northwest (Al-Sadi 2021; Li et al 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Different methods for disease management have been proposed, including crop management, breeding, biological and chemical methods (Al-Sadi 2021;Li et al 2021;Nasr-Esfahani 2005, 2018. The best way to control this disease is to use resistant or tolerant wheat genotypes (Arabi et al 2019). Resistant cultivars have been evaluated from different morphological, physiological, chemical and molecular aspects (Ghasemi et al 2014;Hashemi et al 2020;Soheili-Moghaddam et al 2022).…”

Section: Introductionmentioning

confidence: 99%

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Transcriptome‐based analysis of resistance mechanisms to Bipolaris sorokiniana, a common wheat root‐rot disease

et al. 2022

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In common root and crown rot (CRR), Bipolaris sorokiniana (Sace.) is one of the important in wheat, causing considerable yield losses globally. Sources of resistance can provide a feasible and effective method of control for plant disease management. However, knowledge on mechanisms of resistance is scarce.• We screened 33 wheat genotypes against B. sorokiniana under greenhouse and field conditions. In addition, real-time quantitative PCR (qPCR) analysis using ten novel candidate gene markers, Cre3, EDS1, LTP5, PGIP, PR-1, PIEP1, TLP, UGT, Stb6 and PFT, was conducted on leaves and roots, along with changes in activity of antioxidant enzymes, peroxidase, catalase, b-1,3-glucanase, and phenolic content for their involvement in disease impact mechanisms.• Lowest disease severity was in 'Alvand', followed by 'Baharan' and 'Bam' as resistant genotypes. Quantitative gene expression showed that, although the candidate defence genes were upregulated 1.24-to 3.5-fold in wheat roots and leaves inoculated with B. sorokiniana, they were highly regulated in resistant varieties 'Alvand', 'Mehregan' and 'Bam'. Cre3, a resistance gene to cereal cyst nematode Heterodera filipjevi, was regulated in cultivars resistant to B. sorokiniana. Similar results were obtained for Stb6, a gene resistant to Septoria tritici blotch, EDS1 resistant to powdery mildew, Blumeria graminis, and the genes PR-1 and UGT resistant to leaf rust, Puccinia triticina. Antioxidant enzyme activity also showed the highest increases in resistant genotypes.• In conclusion, the T. aestivum-B. sorokiniana interaction in resistant wheat cultivars uses defence-related genes and enzymes that protect wheat towards sustainable development. Further such studies will shed light on simultaneous resistance to other diseases in wheat cultivars.

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Section: Methodsmentioning

confidence: 98%

Section: Plant Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Transcriptome‐based analysis of resistance mechanisms to Bipolaris sorokiniana, a common wheat root‐rot disease

et al. 2022

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A review on common root rot of wheat and barley in Australia

2023

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Common root rot (CRR) caused by the soilborne pathogen Bipolaris sorokiniana (teleomorph Cochliobolus sativus) is becoming increasingly prevalent worldwide. Identification of CRR is difficult and time‐consuming for human assessors due to the non‐distinctive above‐ground symptoms, with browning of subcrown internodes and roots the most distinguishing symptom of infection. CRR disease has been recognized as a significant disease for cereal crops in many countries. In 2009, CRR in Australia was estimated to cause $30 million average annual yield loss for wheat and $13 million for barley. Recent evidence indicates CRR may be more prevalent than expected in Australian wheat cropping areas due to lack of research on this disease. Low levels of B. sorokiniana survive in the soil for up to 10 years and attack plants at early stages of growth. Therefore, mitigating CRR in wheat and barley may not be practical at the late stages of infection due to lack of effective methods; however, early detection might be viable to alleviate the impact of this disease. A comprehensive overview of CRR caused by B. sorokiniana, including disease background, worldwide economic losses, management methods, potential CRR detection using multispectral and hyperspectral sensors and the research focus over the past 50 years is provided in this article. This review paper is expected to provide thorough supplemental information for current studies about CRR and proposes recommendations for whole‐of‐field disease scouting methods to farmers, enabling reduced time and cost for CRR management and increasing wheat and barley production worldwide.

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Unraveling the dynamics of wheat leaf blight complex: isolation, characterization, and insights into pathogen population under Indian conditions

Aditya,

Aggarwal,

Bashyal

et al. 2024

Front. Microbiol.

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Wheat, a staple food crop for 35% of the global population, faces a threat from Helminthosporium leaf blight (HLB), a complex of spot blotch (Bipolaris sorokiniana) and tan spot (Pyrenophora-tritici-repentis) diseases under warm and humid conditions. However, in Indian conditions, the knowledge of existing pathogen populations associated with the HLB complex is limited and largely dominated by only B. sorokiniana (spot blotch). To address this, diseased samples were collected from all six wheat growing zones during 2020–2022. The pathogenic species were identified through in-depth morphological characterization, supplemented with ITS-rDNA and GAPDH sequence analysis, a diagnostic SCAR marker, and pathogenicity studies on two wheat varieties: Sonalika and HD2733. The 32 isolates collected from 10 different states consist of B. spicifera (12.5% of all isolates), Exserohilum rostratum (9.3%), Bipolaris oryzae (3.1%), and B. sorokiniana (75%). B. sorokiniana exhibited the highest disease severity on both varieties. Other lesser-known pathogenic species also produced comparable disease severity as B. sorokiniana isolates and, therefore are economically important. Unraveling pathogen composition and biology aids in disease control and resistance breeding. Our study highlights economically impactful and lesser-known pathogenic species causing wheat leaf blight/spot blotch in India, guiding both current management and future resistance breeding strategies in plant pathology.

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Diverse responses of old, modern and landraces of Syrian wheat genotypes to common root rot under field conditions

Cited by 3 publications

References 10 publications

Transcriptome‐based analysis of resistance mechanisms to Bipolaris sorokiniana, a common wheat root‐rot disease

Transcriptome‐based analysis of resistance mechanisms to Bipolaris sorokiniana, a common wheat root‐rot disease

A review on common root rot of wheat and barley in Australia

Unraveling the dynamics of wheat leaf blight complex: isolation, characterization, and insights into pathogen population under Indian conditions

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