Pathogen population structure and epidemiology are keys to wheat crown rot and Fusarium head blight management

Chakraborty, Sukumar; Liu, Chunji; Mitter, V.; Scott, Jason B.; Akinsanmi, Olufemi A.; Ali, Shaukat; Dill‐Macky, Ruth; Nıcol, J. M.; Backhouse, David; Simpfendorfer, S.

doi:10.1071/ap06068

Cited by 129 publications

(140 citation statements)

References 66 publications

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“…Başak yanıklığında olduğu gibi hastalık nemli bölgelerde de görülmektedir. [6]. Hastalığın özellikle su stresinin olduğu kurak alanlarda Türkiye'de orta Anadolu'da en önemli kök boğazı çürüklük etmeni Fusarium türü olduğu bazı çalışmalarda ortaya konulmuştur [7,8].…”

Section: Introductionunclassified

2,4-Dimetilpirol’ün Başak Yanıklığı Hastalığı Etmeni Fusarium culmorum’un Üzerine Etkilerinin İncelenmesi

Sefer

Yörük

Develi

et al. 2017

International Journal of Secondary Metabolite

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Özet: Bitki patojeni Fusarium culmorum dünyada ve ülkemizde tahıllar üzerinde kök çürüklüğü ve başak yanıklığı başta olmak üzere çeşitli hastalıklara neden olmaktadır. Bu çalışmada F. culmorum ile mücadele kullanılabilecek yeni ve potansiyel bir ajan olarak 2,4-Dimetilpirol'ün patojen üzerindeki etkileri incelenmiştir. Bu amaçla farklı konsantrasyonlarda 2,4-Dimetilpirol (0, 0.5, 1, 2 ve 4 mg mL -1 ) uygulanmış F. culmorum 20F izolatında artan konsantrasyonlarda doğrusal büyüme oranındaki (DBO) değişim incelenmiş ve kontrol ve deney grupları arasında anlamlı bir düşüş olduğu görülmüştür. Ayrıca seksüel üreme ve hücre çeperi bütünlüğünden sorumlu Mgv1 geninin anlatımı gerçek zamanlı kantitatif polimeraz zincir reaksiyonu (k-PZR) ve ters transkripsiyon PZR (RT-PZR) ile incelenmiştir. Deney gruplarında kontrol gruplarına göre Mgv1 geni için 5.21±0.05x10 2 kat artma saptanmıştır. Elde edilen bulgulara göre 2,4-Dimetilpirol'ün, F. culmorum türünde potansiyel bir antifungal etkili ajan olabileceği gösterilmiştir. İleriki çalışmalarda bu ajanın tarladaki fungal biyokütlenin ve toksin üretiminin azaltılmasını sağlayarak hastalık ile mücadelede yeni bir yaklaşım olarak kullanılabileceği düşünülmektedir. Anahtar Kelimeler: Antifungal; Başak Yanıklığı; Fusarium; 2,4-Dimetilpirol Investigation of the Effects of 2,4-Dimethylpyrrole on Fusarium culmorum Causal Agent of Head Blight DiseaseReceived: 31 January 2017 -Revised: 11 April 2017 -Accepted: 19 April 2017 Abstract: Fusarium culmorum, a phytopathogen, cause several diseases including root rot and head blight on cereals in worldwide and our country. In this study, effects of 2,4-Dimethylpyrrole, as a novel and potential agent on pathogen which can be used in fight with F. culmorum were investigated. For this purpose, alteration in linear growth rate (LGR) in F. culmorum 20F isolate, subjected to different concentrations of 2,4-Dimethylpyrrole (0, 0.5, 1, 2, 4 mg mL -1

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Section: Introductionunclassified

2,4-Dimetilpirol’ün Başak Yanıklığı Hastalığı Etmeni Fusarium culmorum’un Üzerine Etkilerinin İncelenmesi

Sefer

Yörük

Develi

et al. 2017

International Journal of Secondary Metabolite

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“…The procedures used for inoculum preparation were based on that described by Mitter et al (2006). Specifically, plates of 1/4 strength PDA (potato dextrose agar) inoculated with Fp3096 were incubated for a week at room temperature.…”

Section: Cr Screeningmentioning

confidence: 99%

“…Both barley and wheat can be seriously affected by CR, which has recently become more prevalent due to the widespread adoption of minimum tillage (reviewed by Chakraborty et al, 2006) as CR pathogens are carried over in residues (Wildermuth et al, 1997;Wallwork et al, 2004). A recent study by Daniel and Simpfendorfer (2008) found that, on average, CR caused 25% yield loss in bread wheat, 58% in durum, and 20% in barley across a wide range of environments in Australia.…”

Section: Introductionmentioning

confidence: 99%

“…Crown rot (CR) is a severe and chronic disease of cereals found in many parts of the world (Chakraborty et al, 2006). Both barley and wheat can be seriously affected by CR, which has recently become more prevalent due to the widespread adoption of minimum tillage (reviewed by Chakraborty et al, 2006) as CR pathogens are carried over in residues (Wildermuth et al, 1997;Wallwork et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Development and Validation of Markers Closely Linked to Crown Rot Resistance in Wheat and Barley

Li¹,

Zhou²,

Liu³

2012

mpb

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Crown rot (CR), caused by various Fusarium species, is a chronic cereal disease in Australia and many other parts of the world. As part of our objective of improving the efficiency of breeding CR-resistant wheat and barley varieties, we have been searching for novel sources of resistance and identifying new genes conferring CR resistance in the two crops. This paper reports on the development of more closely linked markers and validation of the effects of the previously identified wheat 3B CR quantitative trait loci (QTL) and the barley 3H major CR locus using four wheat and three barley validation populations. With an effect varied from 36.7 to 59.4% in wheat and 29.4 to 55.2% in barley, the validation experiments demonstrated that both of the 3B and 3H CR locus have a stable and significant effect in reducing CR severity at different genetic backgrounds. The huge effect of a single QTL as the CR loci detected in this study warrant a significant value of incorporating these two genes in wheat and barley breeding. The possible homoeologous relationship between these two major CR loci is preliminarily investigated by comparative mapping the two genomic regions and it warrants further investigation.

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“…The severity of FHB is determined by the complex of Fusarium species colonizing wheat spikes and weather conditions, in particular during flowering (Goliński et al, 2010;Landschoot et al, 2013). F. graminearum, F. culmorum and F. avenaceum are the main causal agents of FHB around the world (Bottalico and Perrone, 2002;Chakraborty et al, 2006). The grain of winter wheat grown in Lithuania was colonized mostly by F. poae, followed by F. avenaceum and F. sporotrichiodes (Supronienė et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Fusarium Head Blight and Mycotoxin Concentrations in a Moderately Resistant Winter Wheat Cultivar Under Different Nutrient Regimes

Sobieraj

Cwalina-Ambroziak

WaÅ›kiewicz³

et al. 2017

JAA

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I S S N 2349-0837 V o l u m e 7 N u m b e r 3 J o u r n a l o f A d v a n c e s i n A g r i c u l t u r e 1083 | P a g e h t t p s : / / c i r w o r l d . c o m S e p t e m b e r , 2 0 1 7 ABSTRACTWinter wheat cv. Boomer was grown in a field-plot experiment in Tomaszkowo near Olsztyn. During the growing season, the severity of Fusarium head blight (FHB was evaluated on a 5-point scale. The quantitative and qualitative composition of Fusarium fungi colonizing wheat grain was evaluated in a laboratory. The content of Fusarium mycotoxins (deoxynivalenol, DON, nivalenol, NIV, zearalenone, ZEA, fumonisins FB1 and FB2) and ergosterol (ERG) in grain was determined by high-performance liquid chromatography (HPLC). The relationships between the severity of FHB and mycotoxin concentrations in grain were determined by calculating Pearson's correlation coefficient r in the CORR SAS procedure. The effect of microelement fertilizers on the severity of FHB, the species composition of Fusarium fungi colonizing winter wheat grains and mycotoxin concentrations in grain were determined.Analyses of winter wheat spikes revealed that FHB was less severe in 2012 (healthy ears in the NPK+Mn treatment and the lowest value of the infection index 1% was noted in the absolute control treatment) than in 2013 (the most evident symptoms of FHB in the NPK+Nano-Gro treatment -infection index of approx. 12%). Mineral fertilization, i.e. NPK, NPK with microelements (Cu, Zn, Mn) and NPK with the Nano-Gro® organic growth stimulator, reduced the production of trichothecenes, ZEA and fumonisins B1 and B2 in both years of the study. The highest levels of DON and NIV were noted in winter wheat grain in 2012 in control, control/NPK, NPK+Cu and NPK+Mn treatments. Toxin-producing fungi: Fusarium culmorum, F. poae, Gibberella avenacea, G. zeae were isolated most frequently from winter wheat grain in the above treatments. The severity of FHB was not significantly correlated with the concentrations of ERG, FB1, FB2 and ZEA in grain. A negative correlation was observed between the severity of FHB vs. DON and NIV levels in grain.

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Pathogen population structure and epidemiology are keys to wheat crown rot and Fusarium head blight management

Cited by 129 publications

References 66 publications

2,4-Dimetilpirol’ün Başak Yanıklığı Hastalığı Etmeni Fusarium culmorum’un Üzerine Etkilerinin İncelenmesi

2,4-Dimetilpirol’ün Başak Yanıklığı Hastalığı Etmeni Fusarium culmorum’un Üzerine Etkilerinin İncelenmesi

Development and Validation of Markers Closely Linked to Crown Rot Resistance in Wheat and Barley

Fusarium Head Blight and Mycotoxin Concentrations in a Moderately Resistant Winter Wheat Cultivar Under Different Nutrient Regimes

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