An overview of arbuscular mycorrhizal fungi–nematode interactions

Hol, W. H. Gera; Cook, R.

doi:10.1016/j.baae.2005.04.001

Cited by 143 publications

(91 citation statements)

References 44 publications

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“…Inoculation with M. incognita decreased root colonization rates significantly in plants inoculated with G. mosseae (by 16%) or G. versiforme (by 11%). Changes in AM fungus colonization in the presence of nematodes has been observed in other studies (Carling et al 1989;Waceke et al 2001;Castillo et al 2006) and has been attributed mainly to competition between AM fungi and RKN for feeding sites and carbon substrates from host photosynthesis (Smith 1998;Hol and Cook 2005).…”

Section: Resultsmentioning

confidence: 95%

“…Since AM fungi and RKN are all indigenous soil organisms and therefore co-exist in plant roots, the potential role of AM fungi as biocontrol agents and their protective effects on plants against RKN have been well documented Diedhiou et al 2003). Studies have shown that inoculation with AM fungi can significantly reduce RKN infestation and reproduction in some plant-nematode systems (Hol and Cook 2005) such as papaya with Meloidogyne incognita (Jaizme- Vega et al 2006), olive planting stocks with M. incognita and Meloidogyne javanica (Castillo et al 2006), tomato with M. incognita (Talavera et al 2001;Siddiqui and Akhtar 2007), pyrethrum with Meloidogyne hapla (Waceke et al 2001), Prunus rootstocks with M. javanica (Calvet et al 2001), and banana with M. javanica (Rodriguez and JaizmeVega 2005). In addition to enhancement of plant nutrition, especially P nutrition, establishment of arbuscular mycorrhizae may exert beneficial effects on plant growth though direct competition with RKN for infection sites and space, alteration of the composition of root exudates, or through activation of plant defense reactions and other mechanisms (Smith et al 1986;Azcón-Aguilar and Barea 1996;Harrier and Watson 2004;Li et al 2006).…”

Section: Introductionmentioning

confidence: 99%

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Pre-inoculation with arbuscular mycorrhizal fungi suppresses root knot nematode (Meloidogyne incognita) on cucumber (Cucumis sativus)

Zhang

Christie

et al. 2008

Biol Fertil Soils

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A pot experiment was conducted to evaluate the influence of pre-inoculation of cucumber plants with each of the three arbuscular mycorrhizal (AM) fungi Glomus intraradices, Glomus mosseae, and Glomus versiforme on reproduction of the root knot nematode Meloidogyne incognita. All three AM fungi tested significantly reduced the root galling index, which is the percentage of total roots forming galls. Numbers of galls per root system were significantly reduced only in the G. intraradices +M. incognita treatment. The number of eggs per root system was significantly decreased by AM fungus inoculation, no significant difference among the three AM fungal isolates. AM inoculation substantially decreased the number of females, the number of eggs g −1 root and of the number of eggs per egg mass. The number of egg masses g −1 root was greatly reduced by inoculation with G. mosseae or G.versiforme. By considering plant growth, nutrient uptake, and the suppression of M. incognita together, G. mosseae and G. versiforme were more effective than G. intraradices.

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Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Pre-inoculation with arbuscular mycorrhizal fungi suppresses root knot nematode (Meloidogyne incognita) on cucumber (Cucumis sativus)

Zhang

Christie

et al. 2008

Biol Fertil Soils

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“…There are a number of ways to approach this. Use of meta-analysis provide invaluable information on the patterns observed across multiple studies (Lekberg & Koide 2005;Andow 1991b;Connolly et al 2001) as do good synthetic review articles (Collier & Van Steenwyk 2004;Hol & Cook 2005;Hooper et al 2005). These avenues target the research community, but materials better suited to farmers, the public and policy makers are also needed.…”

Section: Managing Complexity and Uncertaintymentioning

confidence: 99%

Biotic interactions, ecological knowledge and agriculture

Shennan

2007

Phil. Trans. R. Soc. B

175

126

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This paper discusses biotic interactions in agroecosystems and how they may be manipulated to support crop productivity and environmental health by provision of ecosystem services such as weed, pest and disease management, nutrient cycling and biodiversity conservation. Important elements for understanding biotic interactions include consideration of the effects of diversity, species composition and food web structure on ecosystem processes; the impacts of timing, frequency and intensity of disturbance; and the importance of multitrophic interactions. All of these elements need to be considered at multiple scales that depend in part on the range of the movement of the organisms involved. These issues are first discussed in general, followed by an examination of the application of these concepts in agricultural management. The potential for a greater use of ecological management approaches is high; however, owing to the nature of complex interactions in ecosystems, there is some inherent unpredictability about responses to management interventions under different conditions. Such uncertainty needs to be accommodated in the development of recommendations for farm management. This requires an increased emphasis on the effective synthesis of complex and often apparently contradictory information and on field-based adaptive research, monitoring and social learning by farmer/researcher collaborations.

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“…Our results indicate the involvement of mechanisms other than P nutrition in the AMF-nematode interaction (Smith 1987(Smith , 1988. Hol and Cook (2005) summarized the possible mechanisms by which AMF may affect nematodes, namely changes in root exudates (Ryan et al, 2000), reduced penetration by Meloigogyne on AMF (Mahanta and Phukan, 2000), and competition for photosynthates and space (Hussey and Roncadori, 1982). Changes in root morphology, histopathological changes, physiological, and biochemical changes, and changes in host nutrition and water use have also been suggested (Siddiqui and Mahmood, 1995;Siddiqui and Akhtar, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…In most circumstances, inoculation with AMF can increase the tolerance of host plants to nematodes. The proportion of reduction of root-knot nematode numbers by AMF was found to be 33% on average (Hol and Cook, 2005). However, in the literature there are few reports on the relationship between AMF and root knot nematodes of cucumber.…”

Section: Introductionmentioning

confidence: 99%

Effect of Inoculation with the Arbuscular Mycorrhizal FungusGlomus Intraradiceson the Root-Knot NematodeMeloidogyne Incognitain Cucumber

Zhang

Christie

et al. 2009

Journal of Plant Nutrition

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General rights Copyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights.Take down policy The Research Portal is Queen's institutional repository that provides access to Queen's research output. Every effort has been made to ensure that content in the Research Portal does not infringe any person's rights, or applicable UK laws. If you discover content in the Research Portal that you believe breaches copyright or violates any law, please contact openaccess@qub.ac.uk. ABSTRACTA pot experiment was carried out to investigate the tolerance of cucumber plants (Cucumis sativus L.) to root-knot nematode after inoculation with Glomus intraradices. Plants were inoculated with G. intraradices for four weeks and then transplanted in soil treated with Meloidogyne incognita for a further five weeks. The low phosphorus (P) loamy soil was amended with 50 and 100 mg P kg −1 soil. Mycorrhizal colonization increased shoot dry weight, shoot length, leaf numbers, root fresh weight and shoot P concentration, whereas nematode penetration and reproduction were significantly decreased. Similarly, P fertilization usually increased shoot growth and significantly decreased the number of galls and the number of egg masses and eggs per g root. Our results indicate that inoculation with G. intraradices and P fertilizer confer tolerance of cucumber plants to M. incognita by enhancing plant growth and by suppressing reproduction and/or galling of nematodes during the early stages of plant growth.

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An overview of arbuscular mycorrhizal fungi–nematode interactions

Cited by 143 publications

References 44 publications

Pre-inoculation with arbuscular mycorrhizal fungi suppresses root knot nematode (Meloidogyne incognita) on cucumber (Cucumis sativus)

Pre-inoculation with arbuscular mycorrhizal fungi suppresses root knot nematode (Meloidogyne incognita) on cucumber (Cucumis sativus)

Biotic interactions, ecological knowledge and agriculture

Effect of Inoculation with the Arbuscular Mycorrhizal FungusGlomus Intraradiceson the Root-Knot NematodeMeloidogyne Incognitain Cucumber

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