Vertical migration of nematodes and soil-borne fungi to developing roots of Ammophila arenaria (L.) link after sand accretion

Goes, P.C.E.M. De Rooij van der; Peters, B. A. M.; Putten, Wim H. van der

doi:10.1016/s0929-1393(98)00116-4

Cited by 22 publications

(13 citation statements)

References 17 publications

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“…These issues need to be further explored under more realistic conditions and time scales, to determine the extent to which plant‐soil community feedback interactions explain the spatio‐temporal patterns and processes in vegetation. Feedback experiments in the field (De Rooij‐van der Goes, Peters & Van der Putten ; Casper & Castelli ) are needed to complement and verify feedback experiments under more controlled indoor conditions.…”

Section: Future Challengesmentioning

confidence: 99%

Plant–soil feedbacks: the past, the present and future challenges

et al. 2013

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Summary1. Plant-soil feedbacks is becoming an important concept for explaining vegetation dynamics, the invasiveness of introduced exotic species in new habitats and how terrestrial ecosystems respond to global land use and climate change. Using a new conceptual model, we show how critical alterations in plant-soil feedback interactions can change the assemblage of plant communities. We highlight recent advances, define terms and identify future challenges in this area of research and discuss how variations in strengths and directions of plant-soil feedbacks can explain succession, invasion, response to climate warming and diversity-productivity relationships. 2. While there has been a rapid increase in understanding the biological, chemical and physical mechanisms and their interdependencies underlying plant-soil feedback interactions, further progress is to be expected from applying new experimental techniques and technologies, linking empirical studies to modelling and field-based studies that can include plant-soil feedback interactions on longer time scales that also include long-term processes such as litter decomposition and mineralization. 3. Significant progress has also been made in analysing consequences of plant-soil feedbacks for biodiversity-functioning relationships, plant fitness and selection. 4. To further integrate plant-soil feedbacks into ecological theory, it will be important to determine where and how observed patterns may be generalized, and how they may influence evolution. 5. Synthesis. Gaining a greater understanding of plant-soil feedbacks and underlying mechanisms is improving our ability to predict consequences of these interactions for plant community composition and productivity under a variety of conditions. Future research will enable better prediction and mitigation of the consequences of human-induced global changes, improve efforts of restoration and conservation and promote sustainable provision of ecosystem services in a rapidly changing world.

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Section: Future Challengesmentioning

confidence: 99%

Plant–soil feedbacks: the past, the present and future challenges

et al. 2013

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“…Sand burial allows A. arenaria to avoid ageing by developing new roots (Marshall, 1965) and provides the opportunity to escape temporarily from root‐pathogens and herbivores (van der Putten et al ., 1990). Although root‐feeding nematodes gradually colonize the new sand layers, there is a lag of 4–5 wk in which the new roots grown in a freshly deposited layer of wind‐blown beach sand are in an ‘enemy‐free’ environment (de Rooij‐van der Goes et al ., 1998; van der Stoel et al ., 2002). When sand accretion stops, as in stabilized dunes, root pathogens and herbivores accumulate in the rhizosphere leading to a gradual degeneration and eventual disappearance of A. arenaria .…”

Section: Introductionmentioning

confidence: 99%

Mechanism of control of root‐feeding nematodes by mycorrhizal fungi in the dune grass Ammophila arenaria

Peña¹,

et al. 2005

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Summary• Root-feeding herbivores can affect plant performance and the composition of natural plant communities, but there is little information about the mechanisms that control root herbivores in natural systems. This study explores the interactions between the pioneer dune grass Ammophila arenaria , arbuscular mycorrhizal fungi (AMF) and the root-feeding nematode Pratylenchus penetrans .• Our objectives were to determine whether AMF can suppress nematode infection and reproduction and to explore the mechanisms of nematode control by AMF. A sequential inoculation experiment and a split-root experiment were designed to analyse the importance of plant tolerance and resistance and of direct competition between AMF and P. penetrans for the root herbivore and the plant.• Root infection and multiplication of P. penetrans were significantly reduced by the native inoculum of AMF. Plant preinoculation with AMF further decreased nematode colonization and reproduction. Nematode suppression by AMF did not occur through a systemic plant response but through local mechanisms.• Our results suggest that AMF are crucial for the control of root-feeding nematodes in natural systems and illustrate that locally operating mechanisms are involved in this process.

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“…Roots create a gradient of materials such as water, carbon dioxide, and metabolic products, which attract plant-parasitic nematodes (Robinson, 1995;de Rooij-van der Goes et al, 1998;Duncan & McCoy, 2001). Preliminary experiments showed that migration index was greater in planted columns than in unplanted columns, and no difference in nematode migration was observed in unplanted soil columns between open and covered conditions (data unpubl.).…”

Section: Discussionmentioning

confidence: 99%

The role of pore size on the migration of Meloidogyne incognita juveniles under different tillage systems

Nakamoto

Otobe

et al. 2007

Nematol

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Migration of Meloidogyne incognita juveniles was investigated in soils collected from fields under different tillage regimes. Over 7 days, juvenile migration speed was greater in tilled soil (bulk density, 0.64 g cm −3 ) than in non-tilled soil (0.86 g cm −3 ). The volume of pores with diam. > 100 µm was greater in tilled soil than in non-tilled soil. The effect of bulk density on juvenile migration was investigated using columns filled with soils of six bulk densities (range, 0.60-0.85 g cm −3 ). As bulk density decreased, migration increased, and soil with a lower bulk density had greater volume of pores with diam. > 30 µm. The migration speed and behaviour of nematodes under saturated conditions were investigated using two micromoulded substrates that had pore spaces measuring 40-100 or 60-160 µm. As pore size increased from 40 to 160 µm, the migration speed decreased. The migration speed along a straight line ranged from 8.4 to 70.2 µm s −1 on these substrates. Migration speed was not constant across a pathway composed of different pore spaces, and the speed was affected greatly by the increased detection behaviour required in the broader space. Our experimental findings suggest that considerable nematode migration can occur in soil through pores with diam. 30-100 µm and >100 µm. Therefore, conventional tillage may enhance the migration and reinfestation of crops by M. incognita.

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Vertical migration of nematodes and soil-borne fungi to developing roots of Ammophila arenaria (L.) link after sand accretion

Cited by 22 publications

References 17 publications

Plant–soil feedbacks: the past, the present and future challenges

Plant–soil feedbacks: the past, the present and future challenges

Mechanism of control of root‐feeding nematodes by mycorrhizal fungi in the dune grass Ammophila arenaria

The role of pore size on the migration of Meloidogyne incognita juveniles under different tillage systems

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