Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae

Scandiani, María Mercedes; Ruberti, D.; Giorda, Laura M.; Pioli, Rosanna; Luque, Alicia G.; Bottai, Hebe; Ivancovich, Juan J.; Aoki, Takayuki; O’Donnell, Kerry

doi:10.1590/s1982-56762011000300001

Cited by 33 publications

(28 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For seedling inoculation, colonized toothpick tips (10 mm) were inserted in the seedlings' stems at 1 cm above the cotyledonal leaves, as per the method of Scandiani et al (2011). Noncolonized toothpicks were used as control.…”

Section: Pathogenic Characterizationmentioning

confidence: 99%

Phylogeny and variability ofColletotrichum truncatumassociated with soybean anthracnose in Brazil

et al. 2017

View full text Add to dashboard Cite

show abstract

Section: Pathogenic Characterizationmentioning

confidence: 99%

Phylogeny and variability ofColletotrichum truncatumassociated with soybean anthracnose in Brazil

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The plants were manually irrigated daily to drainage with tap water and were not fertilized during the experiment. The inoculation technique used in both cases was a modification of the toothpick method used by Scandiani et al (2011) with Fusarium spp. This method has proved to be useful for discriminating levels of aggressiveness among isolates of M. phaseolina and other fungal pathogens, and for detecting resistance rankings comparable with those obtained using infested soils (Keeling 1982;Bramel-Cox et al 1988;Diourte et al 1995;Mertely et al 2005).…”

Section: Inoculation Conditionsmentioning

confidence: 99%

Screening a variable germplasm collection of Cucumis melo L. for seedling resistance to Macrophomina phaseolina

et al. 2015

View full text Add to dashboard Cite

reported to be useful for predicting shoot resistance, were performed, and plants were scored using a scale of disease severity. The average disease severity was calculated for each accession and was used to cluster the accession in five reaction classes. The screening revealed that sources of natural resistance to this fungus are limited. However, seedlings of seven accessions of different botanic groups displayed a resistant response to the stem inoculation, one cantaloup from Israel, one conomon accession from Korea, two wild agrestis and one acidulus from Africa, and two dudaim accessions from Middle East. The response of the F1 progenies varied from susceptibility to high resistance, the latter in progenies from the two agrestis wild types. These results suggest differences in the genetic basis of the resistance in the different selected sources. The resistant accessions are suggested to be screened under field conditions to confirm the level of resistance at adult plant stage and under stressful conditions.

show abstract

“…These include dip inoculation of sprouted seed in F. virguliforme spore suspension and planting in greenhouse mix [80,81,85], temperature-controlled water bath method [38], exposing cut stem to cell free culture filtrate [42], molecular marker-assisted breeding for resistance [60], toothpick inoculation and soil infestation methods [111], planting seeds in a mixture of 1 part inoculum with 20 part soil [64], using cones filled with steam-treated soil mix (2:1 sand: soil) and topped with 3 g of fungus infested white sorghum grains [25]. Navi and Yang (unpublished), modified greenhouse screening technique [80,81,85] to identify resistance sources in germplasm and explore efficacy tests of seed treatments with biocontrol agents (BCA) and or chemicals against SDS (Fig.…”

Section: Resistance Screening In Greenhouse Conditionsmentioning

confidence: 99%

Sudden death syndrome - a growing threat of losses in soybeans.

Navi¹,

Yang²

2016

CABI Reviews

View full text Add to dashboard Cite

Sudden death syndrome (SDS) caused by Fusarium virguliforme is one of the major yield-limiting soil borne diseases of soybean (Glycine max). The SDS has been reported from 21 U.S. states and is known to occur in Africa, North America, and South America. In the U.S. the losses due to SDS was estimated at $3.06 billion for a period from 1988 to 2010. Since 1983, several management approaches have been investigated to reduce SDS and yet, continued efforts are necessary to develop long term disease management programs and to sustain disease below economic threshold levels. Integrating available control measures is an option, but adaptability and real-world assessments are equally important. Support of several funding agencies to better understand the disease in identifying suitable control measures to reduce yield losses in commercial cultivations has been indispensable in accomplishing these goals. In spite of sustained efforts, SDS continued to spread within the U.S. and reported in seven other countries since its first report in 1971.Comprehensive reviews have previously been published on this disease by Roy et al. [98], Leandro et al. [58], and Hartman et al. [32]. In this review, updated information on geographic distribution and economic significance of SDS, epidemiology, factors affecting SDS, and management options for SDS including screening techniques have been compiled. Also, discussed significant gaps in use of plant, fungi and bacteria based biocontrol agents in addressing management of SDS.Keywords: Soybean sudden death syndrome, SDS, Fusarium virguliforme, biocontrol, global reports, yield losses due to SDS, epidemiological factors, greenhouse and field screening. ______________________________________________________________________________This is a manuscript of an article from CAB Reviews 11 (2016): 039, doi: 10.1079/PAVSNNR201611039. Navi, S. S.; Yang, X. B. 2016. Sudden death syndrome -a growing threat of losses in soybeans. CAB International, Wallingford, UK. Aoki et al., and F. virguliforme,90] is an economically significant soil-borne disease, and a risk to many soybean production areas worldwide. The disease was first observed by H.J. Walters in Arkansas, United States in 1971[100], but it was only in 1983 that the disease was named as sudden death syndrome (SDS) of unknown etiology [40]. As of this review, the disease has been reported in three continents, North America (Canada and United States), South America (Argentina, Bolivia, Brazil, Paraguay, and Uruguay), and Africa (South Africa), and within the United States 21 states (Fig. 1) Whether the pathogens causing SDS have been introduced in to new regions or if they have been present in the soil in production fields of these countries for some time without being detected is unknown. After the SDS was detected in Iowa [150], Scherm and Yang [114] developed a risk assessment model to determine potential geographic range of development of this disease, which was considered a southern disease by then, in North America. They predi...

show abstract

Comparison of inoculation methods for characterizing relative aggressiveness of two soybean sudden-death syndrome pathogens, Fusarium virguliforme and F. tucumaniae

Cited by 33 publications

References 40 publications

Phylogeny and variability ofColletotrichum truncatumassociated with soybean anthracnose in Brazil

Phylogeny and variability ofColletotrichum truncatumassociated with soybean anthracnose in Brazil

Screening a variable germplasm collection of Cucumis melo L. for seedling resistance to Macrophomina phaseolina

Sudden death syndrome - a growing threat of losses in soybeans.

Contact Info

Product

Resources

About