Nematode Pests of Leguminous and Oilseed Crops

Fourie, Hendrika; Donald, Alexander H. Mc; Steenkamp, Sonia; Waele, Dirk De

doi:10.1007/978-3-319-44210-5_9

Cited by 23 publications

(32 citation statements)

References 23 publications

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“…Its damage potential to soybean is, however, unknown. The high abundance, wide host range and distribution of lesion nematodes in local grain crop production areas (Fourie et al 2017;Mc Donald et al 2017;Van den Berg et al 2017) at all localities sampled during the present study suggest that more research should be aimed at studying the impact of this genus on soybean growth and yield.…”

Section: Discussionmentioning

confidence: 88%

“…Similarly, P. brachyurus and also P. zeae reproduce well on crops that are commonly used in rotation with local soybean crops including maize (Mc Donald et al 2017) and grain legumes (viz. groundnut and sunflower) (Fourie et al 2017). Densities of P. teres in soybean roots, 126 times higher than that recorded for the species in the mid-1990s survey , also occurred in high densities in cotton-based rotations in the Vaalharts area (Northern Cape Province, South Africa) (Van Biljon et al 2015) where soybean is also grown.…”

Section: Discussionmentioning

confidence: 96%

“…Rotation crops used in these areas, viz. groundnut, dry bean, sunflower, potato and maize in particular, are highly susceptible to M. incognita and M. javanica and also P. brachyurus and P. zeae (De Waele and Jordaan 1988;Fourie et al 2017;Jones et al 2017;Mc Donald et al 2017). Both root-knot and root-lesion nematode problems in grain production areas are hence aggravated by such crop rotation systems and ultimately limit sustainable crop production.…”

Section: Discussionmentioning

confidence: 99%

“…Plant-parasitic nematodes remain a major challenge in crop production, especially in sub-Saharan African countries such as South Africa (Fourie et al 2017;Coyne et al 2018). Nematodes are important pests of soybean worldwide (Jones et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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The host status of glyphosate-tolerant soybean genotypes to Meloidogyne incognita and Pratylenchus infection

Mbatyoti

Beer

Daneel

et al. 2021

Trop. plant pathol.

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The host status of South African adapted, genetically modified (GM) glyphosate-tolerant soybean genotypes to root-knot (field and glasshouse) and lesion (field) nematodes were assessed. Analyses of root and soil samples of 29 genotypes (collected from seven production areas during the 2014/15 season) enabled the identification of nine plant-parasitic nematode genera and 10 species. Predominant endoparasitic genera in root samples were Meloidogyne (Meloidogyne incognita and M. javanica) and Pratylenchus (Pratylenchus brachyurus, P. zeae and P. teres). Rotylenchulus parvus was the predominant semi-endoparasite in soil, followed by Scutellonema brachyurus and Helicotylenchus sp. Only ‘PAN 1583 R’ and ‘PAN 1521 R’ maintained less than 10% of the Meloidogyne spp. densities present in roots of the most susceptible genotype, while all genotypes were susceptible to the Pratylenchus spp. The host status of 36 soybean genotypes to M. incognita infection, evaluated in two follow-up glasshouse experiments terminated 56 days after inoculation of ca. 1000 M. incognita eggs and second-stage juveniles (J2) per seedling, varied substantially for final population density (Pf), reproduction factor (Rf) and relative percentage susceptibility (%S). Only ‘PRF-GCI7’ and the resistant reference ‘LS 5995’ had Rfs < 1 for both experiments, despite higher minimum and maximum temperatures recorded for the second experiment. Continuous evaluation of soybean genotypes for their host status to predominant nematode pests and their use to reduce densities of such species in producer’s fields are crucial to enable sustainable crop production, and contribute towards food provision and security.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The host status of glyphosate-tolerant soybean genotypes to Meloidogyne incognita and Pratylenchus infection

Mbatyoti

Beer

Daneel

et al. 2021

Trop. plant pathol.

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“…Therefore, the purpose of this review is to: (i) establish a clear definition that will differentiate between primary and secondary metabolites in the context of metabolomics studies; (ii) give an overview of known Bacillus secondary metabolites and enzymes with nematicidal potential; (iii) highlight the importance of cultivation conditions for optimum metabolite and enzyme production; and (iv) discuss the use of metabolomics for the detection of possible nematicidal compounds. For the purpose of this review, the authors have focused on the biocontrol of the Meloidogyne genus (RKNs), due to their worldwide distribution (Caboni et al 2013), wide host range and predominance as nematode pests in South African cereal (maize, grain sorghum, millet, barley, rye and oat;McDonald et al 2017) and vegetable (soybean, groundnut, potatoes, tomatoes, onions and sugarcane) crops (Berry et al 2017;Fourie et al 2017;Jones et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Microbial metabolomics: essential definitions and the importance of cultivation conditions for utilizing Bacillus species as bionematicides

Horak

Engelbrecht

Rensburg

et al. 2019

J of Applied Microbiology

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Root‐knot nematodes are destructive phytopathogens that damage agricultural crops globally, and there is growing interest in the use of biocontrol based on rhizobacteria such as Bacillus to combat Meloidogyne species. It is hypothesized that nematicidal activity of Bacillus can be attributed to the production of secondary metabolites and hydrolytic enzymes. Yet, few studies have characterized these metabolites and their identities remain unknown. Others are speculative or fail to elaborate on how secondary metabolites were detected or distinguished from primary metabolites. Metabolites can be classified based on their origin as either intracellular or extracellular and based on their function, as either primary or secondary. Although this classification is in general use, the boundaries are not always well defined. An understanding of the secondary metabolite and hydrolytic enzyme classification of Bacillus species will facilitate investigations aimed at bionematicide development. This review summarizes the significance of Bacillus hydrolytic enzymes and secondary metabolites in bionematicide research and provides an overview of known classifications. The importance of appropriate cultivation conditions for optimum metabolite and enzyme production is also discussed. Finally, the use of metabolomics for the detection and identification of nematicidal compounds is considered.

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Biological control: a novel strategy for the control of the plant parasitic nematodes

Ahmad

Khan

et al. 2021

Antonie van Leeuwenhoek

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Nematode Pests of Leguminous and Oilseed Crops

Cited by 23 publications

References 23 publications

The host status of glyphosate-tolerant soybean genotypes to Meloidogyne incognita and Pratylenchus infection

The host status of glyphosate-tolerant soybean genotypes to Meloidogyne incognita and Pratylenchus infection

Microbial metabolomics: essential definitions and the importance of cultivation conditions for utilizing Bacillus species as bionematicides

Biological control: a novel strategy for the control of the plant parasitic nematodes

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