Identification of valuable sources of resistance to Zymoseptoria tritici in the Tunisian durum wheat landraces

Ouaja, Maroua; Aouini, Lamia; Bahri, Bochra Amina; Ferjaoui, Sahbi; Medini, Maher; Marcel, Thierry C.; Hamza, Sonia

doi:10.1007/s10658-019-01914-9

Cited by 25 publications

(50 citation statements)

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“…WSCI and serpins are involved in the defense of the plant against insects and pathogens. Thus, they may represent potential targets to improve the disease resistance in wheat [ 31 , 32 , 33 , 34 ].…”

Section: Discussionmentioning

confidence: 99%

Quantitative Label-Free Comparison of the Metabolic Protein Fraction in Old and Modern Italian Wheat Genotypes by a Shotgun Approach

et al. 2021

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Wheat represents one of the most important cereals for mankind. However, since wheat proteins are also the causative agent of several adverse reactions, during the last decades, consumers have shown an increasing interest in the old wheat genotypes, which are generally perceived as more “natural” and healthier than the modern ones. Comparison of nutritional value for modern and old wheat genotypes is still controversial, and to evaluate the real impact of these foods on human health comparative experiments involving old and modern genotypes are desirable. The nutritional quality of grain is correlated with its proteomic composition that depends on the interplay between the genetic characteristics of the plant and external factors related to the environment. We report here the label-free shotgun quantitative comparison of the metabolic protein fractions of two old Sicilian landraces (Russello and Timilia) and the modern variety Simeto, from the 2010–2011 and 2011–2012 growing seasons. The overall results show that Timilia presents the major differences with respect to the other two genotypes investigated. These differences may be related to different defense mechanisms and some other peculiar properties of these genotypes. On the other hand, our results confirm previous results leading to the conclusion that with respect to a nutritional value evaluation, there is a substantial equivalence between old and modern wheat genotypes. Data are available via ProteomeXchange with identifier <PXD024204>.

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Section: Discussionmentioning

confidence: 99%

Quantitative Label-Free Comparison of the Metabolic Protein Fraction in Old and Modern Italian Wheat Genotypes by a Shotgun Approach

et al. 2021

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“…Likewise, Aydoğdu and Kurbetli (2018) found that bread wheat cultivars were moderately susceptible to STB under natural epidemic conditions of the Mediterranean region of Turkey. With regard to durum wheat, in a study conducted at seedling and adult plant gowth stages, it was found that durum wheat genotypes had various STB resistance sources (Ouaja et al, 2020). As for Brokenshire (1976), the author reported that bread wheat cultivars may show a wide range of STB reaction ranging from high resistance to high susceptibility.…”

Section: Discussionmentioning

confidence: 99%

Phenolic Content, Antioxidant and Antimicrobial Potential of Melanoleuca Melaleuca Edible Mushroom

2020

THE JAPS

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Septoria tritici blotch (STB), caused by the fungus Zymoseptoria tritici (Roberge ex Desm.) Quaedvl. & Crous, poses a serious threat to bread wheat (Triticum aestivum L.) production around the world. Although there are various studies related to STB, impact of seedling infection on growth of bread wheat have not been well documented yet. The aims of the study were to examine host-pathogen interactions at the seedling stage and then monitor impact of seedling infection on plant growth. A total of 20 bread wheat cultivars were used as host plants and tested in the greenhouse. Seedlings of the cultivars at the two and three-leaf stages were inoculated with Z. tritici. Responses of the cultivars were determined using 0 to 5 scale. Fully-grown plants were evaluated for impact of STB on some agronomic traits (grain weight and plant height) of wheat. The cultivars showed different responses to Z. tritici. However, cvs. Adana-99, Ziyabey-98, Karatopak, Yakamoz and Ceyhan-99 were moderately resistant while cvs. Yüreğir-89 and Pamukova-97 were highly susceptible. STB infection at the seedling stage caused significant (p≤0.01) reduction in plant height ranging from 3.5 to 10.8% and grain losses 11.2 to 34.2% among the cultivars. The study suggests that when Z. tritici infects bread wheat at the seedling stage, it can significantly affect plant growth and grain yield of the crop.

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“…(2011Ferjaoui & al. ( , 2015 and Ouaja & al. (2020) identified other lines with resistance to Septoria tritici blotch (STB).…”

Section: Introductionmentioning

confidence: 95%

Life story of Tunisian durum wheat landraces revealed by their genetic and phenotypic diversity

Krima

Slim

Gélisse

et al. 2020

Preprint

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Durum wheat (Triticum turgidum L. subsp. durum) landraces represent a prominent genetic resource for Mediterranean farming systems and breeding programs. Fourteen landraces sampled in Tunisia were genotyped with 9 microsatellite markers and characterized with 15 morphological descriptors, including resistance to the fungal disease Septoria tritici blotch (STB). The genetic diversity, nearly was as important within landraces populations (45%) than between populations (54%). It was structured in seven genetic groups and was only partly explained by the variety name or the locality of origin. Populations were also greatly diversified phenotypically (Shannon-Weaver H'=0.54) with traits related to spike and awn colours being the most diversified. Resistance to STB was either qualitative in two populations or with varying degrees of quantitative resistance in the others. A Pst-Fst comparison indicate a local adaptation of the populations. Overall, the genetic structure of Tunisian durum wheat landraces revealed a complex selection trajectory and seed exchanges between farmers.

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Identification of valuable sources of resistance to Zymoseptoria tritici in the Tunisian durum wheat landraces

Cited by 25 publications

References 50 publications

Quantitative Label-Free Comparison of the Metabolic Protein Fraction in Old and Modern Italian Wheat Genotypes by a Shotgun Approach

Quantitative Label-Free Comparison of the Metabolic Protein Fraction in Old and Modern Italian Wheat Genotypes by a Shotgun Approach

Phenolic Content, Antioxidant and Antimicrobial Potential of Melanoleuca Melaleuca Edible Mushroom

Life story of Tunisian durum wheat landraces revealed by their genetic and phenotypic diversity

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