<i>Mycosphaerella graminicola:</i> from genomics to disease control

Orton, Elizabeth S.; Deller, Siän Lucy; Brown, J. K. M.

doi:10.1111/j.1364-3703.2010.00688.x

Cited by 111 publications

(113 citation statements)

References 89 publications

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“…Many aspects of the biology of Z. tritici and its interaction with wheat remain unclear. In particular, how does the fungus obtain nutrients to grow and invade the apoplast during the long asymptomatic phase, and how is the necrotrophic phase triggered (Kema et al, 1996;Orton et al, 2011;Deller et al, 2011)? 2. How does Z. tritici acquire nutrients during the asymptomatic phase?…”

Section: Introductionmentioning

confidence: 99%

Is Zymoseptoria tritici a hemibiotroph?

Sánchez‐Vallet

McDonald

Solomon

et al. 2015

Fungal Genetics and Biology

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Section: Introductionmentioning

confidence: 99%

Is Zymoseptoria tritici a hemibiotroph?

Sánchez‐Vallet

McDonald

Solomon

et al. 2015

Fungal Genetics and Biology

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“…The above authors suggest that pyramiding several resistance genes in one cultivar could be an effective strategy in breeding for resistance to this disease. In these experiments, the resistance in Arina based on the genes Stb6 a Stb15 and its high partial resistance probably controlled by several dispersed genes (Orton et al 2011) appeared to be stable in different environments and isolate-nonspecific. For percentage leaf area infected and visual symptom scores, this cultivar showed a coefficient of linear regression (b) not significantly different from 1.0 (b = 1.16) and the coefficient of determination was relatively high (R 2 = 0.77).…”

Section: Analysis Of Variation In the Examined Traitsmentioning

confidence: 83%

Response of selected winter wheat cultivars to inoculation with different Mycosphaerella graminicola isolates

Šíp¹,

Chrpová²,

Palicová³

2015

CZECH J GENET PLANT

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AbstractŠíp V., Chrpová J., Palicová J. (2015): Response of selected winter wheat cultivars to inoculation with different Mycosphaerella graminicola isolates. Czech J. Genet. Plant Breed., 51: 86-95.Five winter wheat cultivars, differing in resistance to Septoria tritici blotch (STB), were spray inoculated under field conditions for two years and at two locations with nine Mycosphaerella graminicola isolates and a mixture of isolates that were obtained from different regions of the Czech Republic. Main aims of this study were (i) to compare isolate, host cultivar and environmental effects on five traits indicative of STB severity and (ii) to analyse pathogen aggressiveness and host-pathogen relations for improving evaluation of cultivar resistance. ANOVA showed in all traits, except the reduction in 1000 grain weight, significant isolate effects. However, the effects of isolate and genotype by isolate interactions were much lower (2.3-4%) than cultivar (19.1-53.7%) and environmental (11.9-58.6%) effects. Cultivar resistance to the disease limited much the loss in grain weight per spike to a halve, from 34.7% in the susceptible Bakfis to 17.3% in the resistant Arina. Visual scoring of symptoms in the middle and at the end of disease development (performed on the 1-9 scale), reflecting the disease progress and infected leaf area, showed the highest cultivar effect (54%) and could be recommended for evaluation of cultivar resistance in breeding practice. All examined traits were significantly interrelated, but significant differences between all the five cultivars were only detected after examination of the % coverage of flag leaves with lesions bearing pycnidia. Resistance in the cultivar Arina was detected by all isolates and the isolate mixture. In spite of significant differences in classification of resistances in the cultivars Bohemia and Mulan after inoculation with one isolate (1081), specific interactions between cultivars and isolates collected in this Central European region are rare. The study leads to a conclusion that investigation into stability of STB resistance across a wide range of environments is more valuable for breeding purposes than the study of cultivar response to different isolates. Combination of important isolate properties in a mixture of isolates is stressed as well

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“…Even though precise grain yield losses due to STB are still not precisely defined, loss reports have always claimed to range between 35 to 50% under conducive conditions (Ponomarenko et al 2011). Thus far, disease management has largely relied on chemical control and more recently on selection of resistant wheat varieties once Stb genes were discovered and mapped Orton et al 2011), particularly after elucidating the Z. tritici -wheat interaction and the underlying genetics Orton et al 2017). However, effectiveness of the chemical control has rapidly declined with the frequent and the rapid emergence of fungicide resistance (Cools and Fraaije 2008;Torriani et al 2015), mainly due to the high adaptability of the Z.…”

Section: Septoria Tritici Blotch (Stb) Caused By the Foliar Fungal Pamentioning

confidence: 99%

Durum wheat and septoria tritici blotch: genes and prospects for breeding

Aouini

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Mycosphaerella graminicola: from genomics to disease control

Abstract: http://genome.jgi-psf.org/Mycgr3/Mycgr3.home.html.

Cited by 111 publications

References 89 publications

Is Zymoseptoria tritici a hemibiotroph?

Is Zymoseptoria tritici a hemibiotroph?

Response of selected winter wheat cultivars to inoculation with different Mycosphaerella graminicola isolates

Durum wheat and septoria tritici blotch: genes and prospects for breeding

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