Symptomatic and Asymptomatic Host Range of <i>Fusarium virguliforme</i>, the Causal Agent of Soybean Sudden Death Syndrome

Kolander, Tammy Mae; Bienapfl, J. C.; Kurle, J. E.; Malvick, Dean K.

doi:10.1094/pdis-08-11-0685-re

Cited by 48 publications

(29 citation statements)

References 36 publications

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“…Although F. virguliforme has been reported to cause root rot on several hosts (Gray et al, 1999;Kolander et al, 2012), the leaf scorch characteristic of SDS is a particular response seen only in soybean, G. max and G. soja. The genetics of resistance to SDS is complex (Stephens et al, 1993;Hnetkovsky et al, 1996;Chang et al, 1996;Kassem et al, 2006;Li and Lightfoot, 2012;Wen et al, 2014;Giammaria et al, 2014).…”

Section: Leaf Scorch Resistancementioning

confidence: 99%

Two Decades of Molecular Marker‐Assisted Breeding for Resistance to Soybean Sudden Death Syndrome

Lightfoot

2015

Crop Science

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Novel tools to improve resistance to sudden death syndrome (SDS) and the underlying Fusarium root rot (FRR) caused by Fusarium virguliforme (Aoki) have been developed for soybean [Glycine max (L.) Merr.]. Eighteen resistance loci have been identified and confirmed over the past two decades (named Rfs1 to Rfs18). To select the beneficial alleles of 8 to 10 loci per cross needed for optimal resistance is a difficult task for plant breeders. Resistance mechanisms to FRR provide only partial protection. Crops contend with many Fusaria, a group with a wide host range and flexible hemibiotrophic lifestyle. Full resistance is absent among the leguminacea, brassicacea, cucurbitacea, and solanacea. This review focuses on the use of plant genomics resources to aid breeding selection for resistance to SDS. The SDS is a combination of two diseases. The first includes rotted roots and toxin‐restricted root development. Resistances include variations in infection severity, infection frequency, and rot severity. The second is caused by toxins translocated from infected roots to the shoots. Leaf scorch, supra‐petiolar abscission, pod abortion and early plant maturity are consequences of many toxin to target interactions. Breeding for combined FRR and SDS resistance has begun using a set of exciting new tools for pathogen quantification in roots. Resistance genes were proven, including GmRLK18‐1 (Glyma_18_02680) Rfs2, and MIPs1a (EC 5.5.1.4) Rfs3. The new tools provide an opportunity for new breeding initiatives. This review aims to inform these new programs of the core discoveries from the past 20 yr, to incorporate best practices from old and new initiatives.

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Section: Leaf Scorch Resistancementioning

confidence: 99%

Two Decades of Molecular Marker‐Assisted Breeding for Resistance to Soybean Sudden Death Syndrome

Lightfoot

2015

Crop Science

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“…For soybean producers, current management options to reduce SDS include but are not limited to planting resistant varieties [14], delayed planting [19], fall tillage [16], planting with corn or other non-soybean crops [5,16,25], modifying agronomic practices like row spacing and seeding rate, [4], and fungicide seed treatments [26,27]. In addition, our results suggest that with clean harvest, the level of F. virguliforme spores should be lower in the absence of either coarseground corn kernels and corn roots or coarse-ground soybean kernels.…”

Section: Discussionmentioning

confidence: 99%

“…However, the corn-soybean rotation system is highly vulnerable to the development of severe soil-borne disease complexes [18]. Due to a wide host range of F. virguliforme, Kolander et al [19] disagree with crop rotation as a realistic method of controlling SDS. In addition, they argue that alternative hosts do not necessarily show foliar symptoms, but their root colonization can cause destructive effects on the plant, and can serve as a medium for the fungus to survive and increase the population of F. virguliforme.…”

Section: Introductionmentioning

confidence: 99%

Impact of Crop Residue and Corn-soybean Rotation on the Survival of Fusarium virguliforme a Causal Agent of Sudden Death Syndrome of Soybean

Navi¹,

Yang²

2016

J Plant Pathol Microbiol

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“…This pathogen can also reproduce on corn, wheat, ryegrass, pigweed, sugar beet, lambsquarters, canola, alfalfa, pinto bean, navy bean, white clover, red clover, pea, and Canadian milk vetch without causing symptoms on these hosts [55]. Researchers have been puzzled by the fact that SDS has now become more prevalent in the Corn Belt and there were many observations that severe SDS occurred after continuous corn.…”

Section: Infection Process and Survival Of F Virguliformementioning

confidence: 99%

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

Navi¹,

Yang²

2016

CABI Reviews

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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...

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Symptomatic and Asymptomatic Host Range of Fusarium virguliforme, the Causal Agent of Soybean Sudden Death Syndrome

Cited by 48 publications

References 36 publications

Two Decades of Molecular Marker‐Assisted Breeding for Resistance to Soybean Sudden Death Syndrome

Two Decades of Molecular Marker‐Assisted Breeding for Resistance to Soybean Sudden Death Syndrome

Impact of Crop Residue and Corn-soybean Rotation on the Survival of Fusarium virguliforme a Causal Agent of Sudden Death Syndrome of Soybean

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

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