The Effect of Freezing Temperatures on<i>Microdochium majus</i>and<i>M. nivale</i>Seedling Blight of Winter Wheat

Haigh, Ian M.; Hare, M. C.

doi:10.1155/2012/359017

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…In all experimental years, spring oats were the least damaged by seedling blight of all the species tested. Haigh and Hare (2012) have reported that disease symptoms did not occur on seedlings grown from the non-infected seed lot in vitro and the presence of Microdochium spp. was confirmed on seedlings from the infected seed lot.…”

Section: Resultsmentioning

confidence: 99%

Microdochium nivale and M. majus as causative agents of seedling blight in spring cereals

Jonavičienė

Supronienė

Semaškienė

2016

Zemdirbyste-Agriculture

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Seedling blight, mostly caused by Fusarium spp. and Bipolaris sorokiniana, is a common disease in spring cereals. This research confirmed the presence of Microdochium fungi in a complex of seedling blight causative agents. Pathogens Microdochium nivale and M. majus in the seed and in stem base of seedlings of spring barley, spring wheat, spring triticale and spring oats were identified and quantified using a quantitative real-time polymerase chain reaction (qPCR) in 2013-2015. Both species were detected in the seed of all spring cereals tested. The amount of M. nivale and M. majus DNA was the highest in seeds of barley. Both Microdochium pathogens were present in the stem base of seedlings of all spring cereals tested; however, a high variation between cereal species and years was established. In most cases, the quantity of M. nivale DNA was the lowest in the seedlings of oats, while that of M. majus -in the seedlings of barley compared to the other cereal species tested. Higher contents of M. majus and M. nivale DNA were identified in the stem base of the seedlings emerged from untreated seeds compared with the seedlings emerged from the fludioxonil-treated seeds. However, the effect of tebuconazole on the reduction of M. nivale and M. majus DNA was inconsistent. Our findings suggest that M. nivale and M. majus occur in the seed of spring cereals and cause seedling blight, therefore research on these pathogens needs to be extended.

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Section: Resultsmentioning

confidence: 99%

Microdochium nivale and M. majus as causative agents of seedling blight in spring cereals

Jonavičienė

Supronienė

Semaškienė

2016

Zemdirbyste-Agriculture

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“…It is also noteworthy that for these years, the studied soil samples from winter and early spring times did not contain the pathogen and plants were not chlorotic, hence, they were not physiologically exhausted. In plate experiments, the optimum temperature for growth of M. nivale are around −6.3 °C and −2.2 °C respectively [ 34 ].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Wheat Resistance to Snow Mold Caused by Microdochium nivale (Fr) Samuels and I.C. Hallett under Abiotic Stress Influence in the Central Non-Black Earth Region of Russia

Temirbekova

Куликов

Ashirbekov

et al. 2022

Plants

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Microdochium nivale is one of the most harmful fungal diseases, causing colossal yield losses and deteriorating grain quality. Wheat genotypes from the world collection of the N.I. Vavilov Institute (VIR) were evaluated for fifty years to investigate their resistance to biotic stress factors (M. nivale). Between 350 to 1085 of winter wheat genotypes were investigated annually. Ten out of fifty years were identified as rot epiphytotics (1978, 1986, 1989, 1990, 1993, 1998, 2001, 2003, 2005 and 2021). The wheat collection was investigated by following the VIR methodological requirements and CMEA unified classification of Triticum aestivum L. The field investigations were carried out in the early spring during fixed-route observations and data collection was included on the spread and development degree of the disease, followed by microbiological and microscopic pathogen identifications. The observations revealed that the primary reason for pink snow mold to infect the wheat crops was abiotic stress factors, such as thawed soil covered in snow that increased the soil temperature by 1.0–4.6 °C above normal. Under these conditions, the plants kept growing, quickly exhausting their carbohydrate and protein resources, thus weakening their immune systems, which made them an easy target for different infections, mainly cryophilic fungi, predominantly Microdochium nivale in the Moscow region. In some years, the joint effect of abiotic and biotic stresses caused crop failure, warranting the replanting of the spring wheat. The investigated wheat genotypes exhibited variable resistance to pink snow mold. The genotypes Mironovskaya 808 (k-43920) from Ukraine;l Nemchinovskaya 846 (k-56861), from Russia; Novobanatka (k-51761) from Yugoslavia; Liwilla (k-57580) from Poland; Zdar (UH 7050) from the Czech Republic; Maris Plowman (k-57944) from the United Kingdom; Pokal (k-56827) from Austria; Hvede Sarah (k-56289) from Denmark; Moldova 83 (k-59750) from Romania; Compal (k-57585) from Germany; Linna (k-45889) from Finland and Kehra (k-34228) from Estonia determined the sources, stability and tolerance to be used in advanced breeding programs.

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The Effect of Freezing Temperatures onMicrodochium majusandM. nivaleSeedling Blight of Winter Wheat

Cited by 2 publications

References 15 publications

Microdochium nivale and M. majus as causative agents of seedling blight in spring cereals

Microdochium nivale and M. majus as causative agents of seedling blight in spring cereals

Evaluation of Wheat Resistance to Snow Mold Caused by Microdochium nivale (Fr) Samuels and I.C. Hallett under Abiotic Stress Influence in the Central Non-Black Earth Region of Russia

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