A New Description of the Process of Identification of Plant-Parasitic Nematode Genera

Fortuner, Renaud

doi:10.1007/978-1-4684-9016-9_6

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…Nematodes were initially identified to genus level using the promorph low power magnification method (Fortuner, ). Randomly selected specimens were taken for DNA sequence analysis; first, morphometric measurements were taken of individual nematodes using a Nikon Eclipse 50i compound microscope and NIS‐ Elements v. 4.10, Nikon imaging software, then, DNA was extracted from single nematodes and sequenced.…”

Section: Methodsmentioning

confidence: 99%

Prevalence and diversity of plant parasitic nematodes in Northern Ireland grassland and cereals, and the influence of soils and rainfall

et al. 2016

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The prevalence and diversity of plant parasitic nematodes in Northern Ireland cereal and grassland was determined from 191 agricultural fields. A total of 18 nematode genera were detected, including economically important pests, Meloidogyne spp., Heterodera spp. and Pratylenchus spp., each of which were above economic damage thresholds in a significant proportion of the sites (92.4%, 70% and 28.6%, respectively). The detection of the root knot nematode, Meloidogyne minor (6% prevalence), was significant given its recent emergence across the turf grass sector and the prospect of M. minor becoming a common agricultural pest. Analyses of nematode prevalence and abundance highlighted significant associations with grass and cereals, soil types, soil grade (proxy for soil quality) and rainfall levels. Specifically, nematode populations varied between the two major soils (brown earths and gleys), while significant trends for increased nematode diversity and greater prevalence of both Meloidogyne and Pratylenchus with increasing rainfall were also observed. Multivariate analyses were performed to determine interactive effects and the relative importance of the factors affecting nematode populations. Notably, rainfall, in combination with either crop type or soil grade, had a significant effect on nematode abundance and diversity. The findings suggest significant changes in nematode populations have occurred over the last several decades and the possibility that these are linked to changing climate and cropping practices are discussed, as well as future concerns for plant parasitic nematode management.

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Section: Methodsmentioning

confidence: 99%

Prevalence and diversity of plant parasitic nematodes in Northern Ireland grassland and cereals, and the influence of soils and rainfall

et al. 2016

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“…Nematodes were identi ed and counted as promorphs, which are forms that can be recognised at low magnication, before observation of detailed morphology (Fortuner, 1988). Nematode counts from the roots were trans- formed to their equivalents in 100 cm 3 of soil and added to the soil counts.…”

Section: Surveymentioning

confidence: 99%

Incidence of plant-parasitic nematodes in natural and semi-natural mountain grassland and the host status of some common grass species

Talavera¹,

Navas²

2002

Nematol

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A plant-parasitic nematode survey was undertaken in mountainous pastures of southern Spain. Sixty-three species of plant-parasitic nematodes distributed over 25 genera were associated with pastures and grasslands in southern Spain. Paratylenchus species (P. microdorus, P. similis, P. nanus and P. ciccaronei) were the most abundant and prevalent plant-parasitic nematodes found. Pratylenchus neglectus and P. thornei were widely distributed in 55 and 41% of sites, respectively. Amplimerlinius globigerus, Helicotylenchus digonicus, H. dihystera, H. tunisiensis, Merlinius brevidens, M. microdorus, Rotylenchus unisexus and Scutylenchus quadrifer were found in more than 10% of the elds, on occasion at densities of more than 200 per 100 cm 3 of soil. A further 49 species of plant-parasitic nematodes were identi ed and reported. A pot experiment, using a range of grasses and forage legumes adapted to the zone, ascertained the host status of the most abundant plant-parasitic nematodes. Helicotylenchus digonicus, M. microdorus and P. microdorus populations were maintained or increased by all grasses or legumes tested. In general, grasses were better hosts of P. neglectus and P. thornei than the pasture legumes tested. Medicago minima reduced P. thornei densities after 3 months of growing.

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Practical Identification of Nematodes in Spain

Tobar

1988

Nematode Identification and Expert System Technology

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A New Description of the Process of Identification of Plant-Parasitic Nematode Genera

Cited by 7 publications

References 2 publications

Prevalence and diversity of plant parasitic nematodes in Northern Ireland grassland and cereals, and the influence of soils and rainfall

Prevalence and diversity of plant parasitic nematodes in Northern Ireland grassland and cereals, and the influence of soils and rainfall

Incidence of plant-parasitic nematodes in natural and semi-natural mountain grassland and the host status of some common grass species

Practical Identification of Nematodes in Spain

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