Heterodera Avenae: Virulence and Resistance

Andersen, Kirsten; Andersen, Sigurd

doi:10.1007/978-1-4613-2251-1_19

Cited by 3 publications

(5 citation statements)

References 17 publications

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“…As an example of the relationship between CCN density and grain yield, H. filipjevi in Iran reduced the yield of rainfed winter wheat at all densities ranging from 2.5 to 20 eggs plus J2s/g of soil, with the lowest and highest densities causing 11 and 48% reductions in yield, respectively [32]. Andersen [33] reported that the numbers of H. avenae cysts produced on barley were 12, 24, 26, and 33 cysts/plant at initial densities of 1, 2.5, 5, and 10 eggs plus J2s/g of soil. In the northwestern U.S.A., rainfed wheat yields are generally reduced when the number of H. avenae eggs plus J2s from extracted cysts, present within the soil, exceeds 3/g of soil [29].…”

Section: Factors Affecting Yield Losses In Ccn-diseasementioning

confidence: 99%

“…Andersson [44] and O’Brien and Fisher [45] concluded that barley normally shows more tolerance against H. avenae as compared to oats or wheat. Andersen [33] reported comparative damage thresholds of 5, 1, and 0.2 eggs plus J2s per gram of soil for these crops, respectively. Those results were further confirmed in selected cultivars of barley and wheat in the U.S.A. [43].…”

Section: Resistance and Tolerance Responses Against Ccnsmentioning

confidence: 99%

“…The first resistance gene against H. avenae was discovered in barley during 1920 in Sweden; however, it was not characterized until 1961 [33]. After that, a number of scientists in several countries with five decades focused on the improvement of resistance in barley against CCN (Reviewed by Smiley et al [29]).…”

Section: Marker-assisted Breeding and Qtl Mapping For Nematode Resmentioning

confidence: 99%

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Resistance to Cereal Cyst Nematodes in Wheat and Barley: An Emphasis on Classical and Modern Approaches

Ali

Mahpara

Zahoor

et al. 2019

IJMS

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Cereal cyst nematodes (CCNs) are among the most important nematode pests that limit production of small grain cereals like wheat and barley. These nematodes alone are estimated to reduce production of crops by 10% globally. This necessitates a huge enhancement of nematode resistance in cereal crops against CCNs. Nematode resistance in wheat and barley in combination with higher grain yields has been a preferential research area for cereal nematologists. This usually involved the targeted genetic exploitations through natural means of classical selection breeding of resistant genotypes and finding quantitative trait luci (QTLs) associated with resistance genes. These improvements were based on available genetic diversity among the crop plants. Recently, genome-wide association studies have widely been exploited to associate nematode resistance or susceptibility with particular regions of the genome. Use of biotechnological tools through the application of various transgenic strategies for enhancement of nematode resistance in various crop plants including wheat and barley had also been an important area of research. These modern approaches primarily include the use of gene silencing, exploitation of nematode effector genes, proteinase inhibitors, chemodisruptive peptides and a combination of one or more of these approaches. Furthermore, the perspective genome editing technologies including CRISPR-Cas9 could also be helpful for improving CCN resistance in wheat and barley. The information provided in this review will be helpful to enhance resistance against CCNs and will attract the attention of the scientific community towards this neglected area.

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Section: Factors Affecting Yield Losses In Ccn-diseasementioning

confidence: 99%

Section: Resistance and Tolerance Responses Against Ccnsmentioning

confidence: 99%

Section: Marker-assisted Breeding and Qtl Mapping For Nematode Resmentioning

confidence: 99%

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Resistance to Cereal Cyst Nematodes in Wheat and Barley: An Emphasis on Classical and Modern Approaches

Ali

Mahpara

Zahoor

et al. 2019

IJMS

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“…Norwegian analysts frequently associate the notion of the uniqueness of its oil industry with references to cultural stereotypes [3]. The "cultural" explanation is based on an "experimental" model.…”

mentioning

confidence: 99%

“…Therefore, it would seem that differences originated from different chemical reactions inside the two test tubes. Svein S. Andersen, who compared industrial relations and safety systems on the British and Norwegian continental shelf in the mid 1980s, explained the different development by pointing to fundamental differences in the social and institutional structure of the two countries [4]. He described British society with reference to the term "pluralism" and Norwegian society with reference to "neo-corporatism."…”

mentioning

confidence: 99%

Offshore Safety Regulations in Norway: From Model to Systems in Erosion

Ryggvik

2000

New Solut

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There are indications that the Norwegian oil province has experienced a decrease in incidents since the introduction of its external control system, which gives industry an important role in setting and maintaining safety standards. This article argues that much of the veneration of the Norwegian model is based on a misreading of the Norwegian offshore health and safety system. The author suggests that improvements in offshore safety in Norway were not caused by the adoption of the internal control system alone, but rather by a number of factors which included the introduction of the stringent Norwegian Work Environment Act, which gives union representatives the right to stop work when they feel safety is jeopardized, as well as the maintenance of strong offshore unions with a comprehensive network of trade union-appointed safety representatives.

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Genetics of resistance and parasitism

Cook¹,

Rivoal²

1998

The Cyst Nematodes

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Heterodera Avenae: Virulence and Resistance

Cited by 3 publications

References 17 publications

Resistance to Cereal Cyst Nematodes in Wheat and Barley: An Emphasis on Classical and Modern Approaches

Resistance to Cereal Cyst Nematodes in Wheat and Barley: An Emphasis on Classical and Modern Approaches

Offshore Safety Regulations in Norway: From Model to Systems in Erosion

Genetics of resistance and parasitism

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