Comparison of pathogenicity of the Fusarium crown rot (FCR) complex (F. culmorum, F. pseudograminearum and F. graminearum) on hard red spring and durum wheat

Dyer, Alan T.; Johnston, R. H.; Hogg, Andrew C.; Johnston, J. A.

doi:10.1007/s10658-009-9488-1

Cited by 34 publications

(37 citation statements)

References 23 publications

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“…Fusarium culmorum is regarded as one of the key pathogen species in the previous reports (Smiley et al ., ; Dyer et al ., ); however, only four isolates were obtained from the wheat specimens in this study, indicating that the distribution of F. culmorum appeared to be correlated with its adaptation to cooler and wetter climatic regions, such as Xingtai and Handan in Hebei Province, and were located in regions with higher latitudes where the annual average temperature was 15°C or lower. This result is consistent with those of previous studies (Backhouse and Burgess, ; Pettitt et al ., ; Dyer et al ., ; Poole et al ., ).…”

Section: Discussionmentioning

confidence: 59%

“…The results of the assessment of pathogenicity show that all Fusarium isolates tested for pathogenicity could cause typical symptoms of FCR. Fusarium pseudograminearum and F. culmorum are the most pathogenic species among the nine tested, which is generally consistent with the previous reports (Akinsanmi et al ., ; Fernandez and Chen, ; Smiley et al ., ; Dyer et al ., ). However, the separation frequency of F. culmorum was low in the HHWGR.…”

Section: Discussionmentioning

confidence: 97%

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Diversity of theFusariumpathogens associated with crown rot in the Huanghuai wheat‐growing region of China

Zhou

Wang

et al. 2019

Environmental Microbiology

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Summary To investigate the distribution and diversity of the pathogens associated with Fusarium crown rot in the Huanghuai wheat‐growing region (HHWGR) of China, we collected wheat samples with symptomatic stem bases from seven provinces in the HHWGR between 2013 and 2016. A total of 1196 isolates obtained from 222 locations were identified as 9 Fusarium species based on morphological and molecular identification. Of these pathogen species, F. pseudograminearum was the dominant species. Furthermore, F. sinensis was isolated from the disease specimens and tested for virulence to wheat. The result of the pathogenicity revealed that an intraspecific differentiation existed in F. pseudograminearum; sequence analysis of the EF‐1α gene showed that 194 F. pseudograminearum isolates were differentiated into two distinct clades which closed to the strains from Australia and China respectively, but neither pathogenicity nor EF‐1α sequence was related to the geographic origins of these isolates. However, universal rice primers‐polymerase chain reaction showed a correlation with the geographical origins of the 194 isolates, which were divided into eight subclusters, the level of genetic diversity was higher within a geographical population than among the different populations. The results of these analyses can be directly used to facilitate disease monitoring and development of control strategies.

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Section: Discussionmentioning

confidence: 59%

Section: Discussionmentioning

confidence: 97%

Diversity of theFusariumpathogens associated with crown rot in the Huanghuai wheat‐growing region of China

Zhou

Wang

et al. 2019

Environmental Microbiology

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“…Overall, Fp had superior fitness as a CR pathogen with the majority of isolates causing severe CR of adult plants. Our findings on the superiority of Fp over Fc and Fg as a CR pathogen of mature plants are in line with published literature (Backhouse et al ., ; Chakraborty et al ., ; Dyer et al ., ). Although there was a significant correlation between CR severity of seedling and adult plants, all three Fusarium species had largely similar ACR‐S and the relatively small difference in aggressiveness between the species magnified on mature plants.…”

Section: Discussionmentioning

confidence: 97%

Fitness of three Fusarium pathogens of wheat

Tunalı

Obanor

ERGİNBAŞ>

et al. 2012

FEMS Microbiol Ecol

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Crown rot and head blight of wheat are caused by the same Fusarium species. To better understand their biology, this study has compared 30 isolates of the three dominant species using 13 pathogenic and saprophytic fitness measures including aggressiveness for the two diseases, saprophytic growth and fecundity and deoxynivalenol (DON) production from saprophytic colonization of grain and straw. Pathogenic fitness was generally linked to DON production in infected tissue. The superior crown rot fitness of Fusarium pseudograminearum was linked to high DON production in the stem base tissue, while Fusarium culmorum and Fusarium graminearum had superior head blight fitness with high DON production in grains. Within each species, some isolates had similar aggressiveness for both diseases but differed in DON production in infected tissue to indicate that more than one mechanism controlled aggressiveness. All three species produced more DON when infecting living host tissue compared with saprophytic colonization of grain or straw, but there were significant links between these saprophytic fitness components and aggressiveness. As necrotrophic pathogens spend a part of their life cycle on dead organic matter, saprophytic fitness is an important component of their overall fitness. Any management strategy must target weaknesses in both pathogenic fitness and saprophytic fitness.

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“…Isolate Fpg2228, collected in Loma, MT (Liberty County), was chosen for the Fu.sarium inoculations because it is an aggressive isolate that reduced yield on wheat (8). Field trials were conducted to assess the population interactions between E. pseudograminearum isolate 2228 (Fpg2228) and B. sorokiniana isolate 2344 (Bs2344) in the hard red spring wheat (Triticum aestivum L.) 'Hank' (WestBred, Bozeman, MT).…”

Section: Methodsmentioning

confidence: 99%

Population Dynamics Between Fusarium pseudograminearum and Bipolaris sorokiniana in Wheat Stems Using Real-Time qPCR

et al. 2011

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Moya-Elizondo, E. A., Jacobsen, B. J., Hogg, A. C, and Dyer, A. T. 2011. Population dynamics between Fusarium pseudograminearmn and Bipolaris sorokiniana in wheat stems using real-time qPCR. Plant Dis. 95:1089-1098.Fu.sarium pseudogratninearum and Bipolaris sorokiniana are causal agents of Fusadum crown rot and common root rot, respectively, of wheat and cause significant losses worldwide. Understanding the population dynatTiics between these two pathogens at late stages of wheat development is needed. The effect of F. pseudograminearum and ß. sorokiniana inocula applied singly or in mixtures at seeding to spring wheat 'Hank" was measured using seedling stand, grain yield, and pathogen populations in the first internode at heading, milk, and harvest stage of wheat development using real-titiie quantitative polymerase chain reaction. High and low rates of F. pseudogratninearum inoculum reduced B. sotokiniana populations in fteld trials hut B.sorokiniana inoculations did not affect F. pseudograminearutn populations. Populations of both pathogens increased from heading until harvest, with F pseudograminearum colonizing lower intemodes earlier than B. sorokiniana. Neither pathogen prevented infection by the other in the first internode of wheat stems. Inoculations increased incidence of infection and co-infection relative to natural settings observed for both pathogens. At the seedling stage, both fungi, individually or combined, reduced the seedling stands when cotiipared with a noninoculated control for the three location-years. Grain yield and F pseudogratninearum populations were inversely correlated, while B. sorokiniana populations were not correlated with yield.

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Comparison of pathogenicity of the Fusarium crown rot (FCR) complex (F. culmorum, F. pseudograminearum and F. graminearum) on hard red spring and durum wheat

Abstract: Fusarium species involved in the Fusarium crown rot (

Cited by 34 publications

References 23 publications

Diversity of theFusariumpathogens associated with crown rot in the Huanghuai wheat‐growing region of China

Diversity of theFusariumpathogens associated with crown rot in the Huanghuai wheat‐growing region of China

Fitness of three Fusarium pathogens of wheat

Population Dynamics Between Fusarium pseudograminearum and Bipolaris sorokiniana in Wheat Stems Using Real-Time qPCR

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