Rootknot nematodes from vineyards and comparisons between crop species as hosts for Meloidogyne spp.

McLeod, R.W.; Steel, Christopher

doi:10.1111/j.1755-0238.1999.tb00294.x

Cited by 6 publications

(4 citation statements)

References 6 publications

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“…These include variability within and between rootstock trial sites (e.g. soil type, temperature and moisture) (Chitambar and Raski , Nicol and van Heeswijck , Stirling and Stanton ), the possibility that field studies may involve a mixture of root‐knot nematode species (Stirling , Cirami and McCarthy , Quader et al ), incorrect identification of root‐knot nematode species (McLeod and Steel ) and incorrect identification of grapevine rootstock (Lin and Walker , Sefc et al , Crespan et al ). There are also seasonal fluctuations in the distribution of nematodes in the soil (Ferris and McKenry , Quader et al ), and plant resistance may decline when environmental conditions are optimal for the nematodes (Trudgill ).…”

Section: Discussionmentioning

confidence: 99%

“…After 8 weeks, ten adult egg‐laying female nematodes were isolated from each plant and pooled for DNA extraction. After DNA extraction, a genotype determination method (Williamson et al ) using species‐specific primers (McLeod and Steel , Zijlstra et al ) identified all eight sets of female root‐knot nematodes as M . javanica (data not shown).…”

Section: Methodsmentioning

confidence: 99%

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Grapevine rootstocks resistant to the root-knot nematodeMeloidogyne javanica

Smith

Morales

Thomas

et al. 2016

Australian Journal of Grape and Wine Research

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Background and Aims: Root-knot nematodes (Meloidogyne spp.) are endo-parasites of plant roots and parasitisation can lead to diminished grape yields. Worldwide viticulture production is impacted primarily by four species of root-knot nematode (Meloidogyne arenaria, Meloidogyne hapla, Meloidogyne incognita and Meloidogyne javanica). Meloidogyne javanica is the predominant root-knot nematode found in Australian vineyards. A glasshouse-based experiment was conducted to identify grapevine cultivars and accessions with complete resistance (i.e. no reproduction of nematode) to an aggressive pathotype of M. javanica isolated from an Australian vineyard. Methods and Results: Single-grapevine plants were inoculated with approximately 1500 second stage juveniles of M. javanica in a replicated study. Six weeks after inoculation, roots were washed free of soil, and egg masses were stained and tallied. The final dry mass of roots was measured to determine the ratio of egg masses to root mass. Conclusions: Complete resistance to M. javanica was found in 42 of 75 Vitis cultivars and accessions screened. Significance of Study: The M. javanica resistant cultivars and accessions identified in this study provide valuable material for future breeding in order to develop new rootstocks for the Australian wine and grape industry with durable resistance to root-knot nematode.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Grapevine rootstocks resistant to the root-knot nematodeMeloidogyne javanica

Smith

Morales

Thomas

et al. 2016

Australian Journal of Grape and Wine Research

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“…For a variety of Brassica crops, brassicaceous green manures have been reported to improve soil structure (Chan and Heenan, 1996), prevent soil erosion (McGuire, 2004), and aid in nitrogen cycling (Thorup-Kristensen et al, 2003). Mcleod and Steel (1999) observed that all 15 Brassica cultivars have greatly reduced the population of Meloidogyne javanica when applied as green manure. Rapeseed was used as green manure on potato crops, which decreased the prevalence of Meloidogyne chitwoodi .…”

Section: Methods Of Application Of Bio Fumigantmentioning

confidence: 99%

Biofumigation: Prospects for Control of Soil Borne Plant Diseases

Sihag¹,

Kumar²,

Rana³

et al. 2022

JBiopest

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One of the biggest worries for farmers is the spread of pathogens through the soil. These diseases are difficult to control because they are often tiny in size, buried in the soil, and frequently highly harmful even in small numbers. The Montreal Protocol on Substances that Deplete the Ozone Layer, to which the majority of countries are signatories, has restricted the use of residual pesticides for the management of soil-borne infections, and the demand for food that is free of blemishes is rising. However, it has become urgently necessary to find suitable substitutes as a result of the phase-out of methyl bromide, a significant chemical. After introducing plants that contain glucosinolate, which is digested to produce isothiocyanates (ITC) in the soil, biofumigation has emerged as a crucial procedure to control plant diseases. The existence of glucosinolates and the byproducts of their hydrolysis in soil illustrate the effectiveness and environmental impact of biofumigation. The most significant producers of bioactive chemicals are Brassica species, which makes them suitable for biofumigation applications. This review focuses on the concept, the effective application of biofumigants against soil-borne diseases, and offers several case examples to highlight upcoming difficulties for the concept's continued advancement.

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“…Consequent to their activity as alternative hosts, the weeds may counteract control strategies for Meloidogyne species infesting vineyards, such as the use of resistant rootstocks, the application of chemicals, fallow, organic amendments and biofumigant crops (Brown et al 1993;McLeod and Steel 1999;Bello et al 2004;Rahman and Somers 2005). Other cultivation strategies, such as the low tillage used to minimise soil disturbance and reduce soil erosion commonly practiced in organic viticulture systems, may favour maintenance or even further development and multiplication of root-knot nematodes in some host weeds.…”

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Suitability of weed species prevailing in Spanish vineyards as hosts for root-knot nematodes

et al. 2007

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Commercial vineyards in southern Spain were surveyed and sampled during October to December 2004 to determine the extent to which common weeds present were suitable hosts of root-knot nematodes infesting soils of those vineyards. Seven weed species commonly growing in grapevine soils in southern Spain were found infected by either Meloidogyne incognita or M. javanica: Amaranthus retroflexus (redroot pigweed), Anchusa azurea (ox-tongue), Chenopodium album (goosefoot), Erodium moschatum (musk stork's bill), Malva rotundifolia (low mallow), Sinapis alba (white mustard), and Solanum nigrum (black nightshade). The host suitability of the weeds to root-knot nematodes was evaluated on the basis of root galling severity and nematode population densities in soil and roots. Also, the host-parasite relationship in these naturally Meloidogyne-infected weeds was examined. All the weed species in the study were considered suitable hosts for M. incognita and M.javanica because: (a) high Meloidogyne spp. populations occurred in roots and surrounding soil of the weed species; (b) the severity of root galling was high, and (c) well-established permanent feeding sites were observed in the histopathological studies of infected root tissues. In addition, this study presents the first reports of S. alba and A. azurea as hosts for M. incognita, and of E. moschatum as a new host for M. javanica, thus increasing the list of reported weed hosts for Meloidogyne spp. These results indicate that noticeable population densities of M. incognita and M. javanica can be maintained or increased in these weeds, at population levels higher than those previously reported for the same nematodes infecting grapevine roots. The weeds infesting vineyards thus represent an important source of inoculum of Meloidogyne spp., and furthermore may act as reservoirs of these nematodes which can be disseminated within or among vineyards by agricultural operations.

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Rootknot nematodes from vineyards and comparisons between crop species as hosts for Meloidogyne spp.

Cited by 6 publications

References 6 publications

Grapevine rootstocks resistant to the root-knot nematodeMeloidogyne javanica

Grapevine rootstocks resistant to the root-knot nematodeMeloidogyne javanica

Biofumigation: Prospects for Control of Soil Borne Plant Diseases

Suitability of weed species prevailing in Spanish vineyards as hosts for root-knot nematodes

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