Elevated temperature reduces survival of peak populations of root-lesion nematodes (Pratylenchus thornei) after wheat growth in a vertisol

Thompson, John; Rostad, H. E.; Macdonald, Bethany; Whish, Jeremy

doi:10.1007/s00374-017-1256-3

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…The eggs and nematodes of P. thornei can withstand in the soil under the conditions when host plants are not available. Under the circumstances of slow drying of soil, a high proportion of these nematodes can withstand and survive under these prevailing dry vicinity (Thompson et al, 2017(Thompson et al, , 2018. Depending upon the population of P. thornei, damage may vary and as a consequence of its infection huge segments of cortex are degraded, and subsequently absorption capacity of roots is also significantly reduced (Jaques and Schwass, 1956).…”

Section: Root Lesion Nematodementioning

confidence: 99%

Present status and future directions for management of root lesion nematode (Pratylenchus thornei) in chickpea

Kumar

Gautam

Tiwari

et al. 2022

ECJ

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Chickpea is a popular legume crop in Asia and Africa's semi-arid regions. Crop production gains, on the other hand, have been modest, owing to biotic and abiotic stressors. Among the different biotic stresses, nematodes portray serious threat to chickpea production and colossal losses have been reported due to stress-free infection by other pathogens on infection with root lesion nematode (RLN). The worldwide distribution of two major species of RLN namely P. thornei and P. neglectus made them a focus research area especially on management aspect. In dryland farming areas of southeastern Australia, the P. thornei alone can cause yield losses of up to 40% in cereals and legumes. Despite the fact that chickpea breeders have been working persistently to generate superior chickpea varieties with increased resilience or tolerance to biotic and abiotic challenges, contemporary biotechnology technologies can help to speed up this process. To incorporate these tools and/or accelerate breeding programmes, identification of RLN resistant source with its genetic factor is first step in developing improved cultivars. However, study of resistance screening methods for chickpea against RLN is limited and standardization of different factors for development of a stable screening methodology distinguishing various levels of resistance is the need of the hour in RLN research.

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Section: Root Lesion Nematodementioning

confidence: 99%

Present status and future directions for management of root lesion nematode (Pratylenchus thornei) in chickpea

Kumar

Gautam

Tiwari

et al. 2022

ECJ

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“…P. thornei eggs and nematodes can survive in the soil in the absence of host plants. If the soil dries slowly a high proportion of the nematodes can survive the dry conditions (Thompson et al, 2017, 2018). Infection by P. thornei is characterized by dark brown to black lesions on chickpea roots (Figure 1C).…”

Section: Chickpea-nematode Interactionsmentioning

confidence: 99%

Resistance to Plant-Parasitic Nematodes in Chickpea: Current Status and Future Perspectives

et al. 2019

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Plant-parasitic nematodes constrain chickpea ( Cicer arietinum ) production, with annual yield losses estimated to be 14% of total global production. Nematode species causing significant economic damage in chickpea include root-knot nematodes ( Meloidogyne artiella , M. incognita , and M. javanica ), cyst nematode ( Heterodera ciceri) , and root-lesion nematode ( Pratylenchus thornei ). Reduced functionality of roots from nematode infestation leads to water stress and nutrient deficiency, which in turn lead to poor plant growth and reduced yield. Integration of resistant crops with appropriate agronomic practices is recognized as the safest and most practical, economic and effective control strategy for plant-parasitic nematodes. However, breeding for resistance to plant-parasitic nematodes has numerous challenges that originate from the narrow genetic diversity of the C. arietinum cultigen. While levels of resistance to M. artiella, H. ciceri , and P. thornei have been identified in wild Cicer species that are superior to resistance levels in the C. arietinum cultigen, barriers to interspecific hybridization restrict the use of these crop wild relatives, as sources of nematode resistance. Wild Cicer species of the primary genepool, C. reticulatum and C. echinospermum , are the only species that have been used to introgress resistance genes into the C. arietinum cultigen. The availability of genomic resources, including genome sequence and re-sequence information, the chickpea reference set and mini-core collections, and new wild Cicer collections, provide unprecedented opportunities for chickpea improvement. This review surveys progress in the identification of novel genetic sources of nematode resistance in international germplasm collections and recommends genome-assisted breeding strategies to accelerate introgression of nematode resistance into elite chickpea cultivars.

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Perennial crop legacy effects on nematode community structure in semi-arid wheat systems

Burkhardt

Briar

Martin

et al. 2019

Applied Soil Ecology

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Elevated temperature reduces survival of peak populations of root-lesion nematodes (Pratylenchus thornei) after wheat growth in a vertisol

Cited by 3 publications

References 34 publications

Present status and future directions for management of root lesion nematode (Pratylenchus thornei) in chickpea

Present status and future directions for management of root lesion nematode (Pratylenchus thornei) in chickpea

Resistance to Plant-Parasitic Nematodes in Chickpea: Current Status and Future Perspectives

Perennial crop legacy effects on nematode community structure in semi-arid wheat systems

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