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Aphids influence soil fungal communities in conventional agricultural systems

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Aphids influence soil fungal communities in conventional agricultural systems. / Wilkinson, Thomas David Joseph; Miranda, Jean-Pascal; Ferrari, Julia; Hartley, Susan E ; Hodge, Angela.

In: Frontiers in Plant Science, 12.07.2019.

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Harvard

Wilkinson, TDJ, Miranda, J-P, Ferrari, J, Hartley, SE & Hodge, A 2019, 'Aphids influence soil fungal communities in conventional agricultural systems', Frontiers in Plant Science. https://doi.org/10.3389/fpls.2019.00895

APA

Wilkinson, T. D. J., Miranda, J-P., Ferrari, J., Hartley, S. E., & Hodge, A. (2019). Aphids influence soil fungal communities in conventional agricultural systems. Frontiers in Plant Science. https://doi.org/10.3389/fpls.2019.00895

Vancouver

Wilkinson TDJ, Miranda J-P, Ferrari J, Hartley SE, Hodge A. Aphids influence soil fungal communities in conventional agricultural systems. Frontiers in Plant Science. 2019 Jul 12. https://doi.org/10.3389/fpls.2019.00895

Author

Wilkinson, Thomas David Joseph ; Miranda, Jean-Pascal ; Ferrari, Julia ; Hartley, Susan E ; Hodge, Angela. / Aphids influence soil fungal communities in conventional agricultural systems. In: Frontiers in Plant Science. 2019.

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@article{5e98c07a7e004331a96c17a42d4ec886,
title = "Aphids influence soil fungal communities in conventional agricultural systems",
abstract = "Arbuscular mycorrhizal fungi (AMF) form symbioses with the roots of most plant species, including cereals. AMF can increase the uptake of nutrients including nitrogen (N) and phosphorus (P), and of silicon (Si) as well as increase host resistance to various stresses. Plants can simultaneously interact with above-ground insect herbivores such as aphids, which can alter the proportion of plant roots colonized by AMF. However, it is unknown if aphids impact the structure of AMF communities colonizing plants or the extent of the extraradical mycelium produced in the soil, both of which can influence the defensive and nutritional benefit a plant derives from the symbiosis. This study investigated the effect of aphids on the plant-AMF interaction in a conventionally managed agricultural system. As plants also interact with other soil fungi, the non-AMF fungal community was also investigated. We hypothesized that aphids would depress plant growth, and reduce intraradical AMF colonization, soil fungal hyphal density and the diversity of AM and non-AM fungal communities. To test the effects of aphids, field plots of barley enclosed with insect proof cages were inoculated with Sitobion avenae or remained uninoculated. AMF specific and total fungal amplicon sequencing assessed root fungal communities 46 days after aphid addition. Aphids did not impact above-ground plant biomass, but did increase the grain N:P ratio. Whilst aphid presence had no impact on AMF intraradical colonization, soil fungal hyphal length density, or AMF community characteristics, there was a trend for the aphid treatment to increase vesicle numbers and the relative abundance of the AMF family Gigasporaceae. Contrary to expectations, the aphid treatment also increased the evenness of the total fungal community. This suggests that aphids can influence soil communities in conventional arable systems, a result that could have implications for multitrophic feedback loops between crop pests and soil organisms across the above-below-ground interface. ",
author = "Wilkinson, {Thomas David Joseph} and Jean-Pascal Miranda and Julia Ferrari and Hartley, {Susan E} and Angela Hodge",
note = "{\textcopyright} 2019 Wilkinson, Miranda, Ferrari, Hartley and Hodge. ",
year = "2019",
month = jul,
day = "12",
doi = "10.3389/fpls.2019.00895",
language = "English",
journal = "Frontiers in Plant Science",
issn = "1664-462X",
publisher = "Frontiers Media S.A.",

}

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TY - JOUR

T1 - Aphids influence soil fungal communities in conventional agricultural systems

AU - Wilkinson, Thomas David Joseph

AU - Miranda, Jean-Pascal

AU - Ferrari, Julia

AU - Hartley, Susan E

AU - Hodge, Angela

N1 - © 2019 Wilkinson, Miranda, Ferrari, Hartley and Hodge.

PY - 2019/7/12

Y1 - 2019/7/12

N2 - Arbuscular mycorrhizal fungi (AMF) form symbioses with the roots of most plant species, including cereals. AMF can increase the uptake of nutrients including nitrogen (N) and phosphorus (P), and of silicon (Si) as well as increase host resistance to various stresses. Plants can simultaneously interact with above-ground insect herbivores such as aphids, which can alter the proportion of plant roots colonized by AMF. However, it is unknown if aphids impact the structure of AMF communities colonizing plants or the extent of the extraradical mycelium produced in the soil, both of which can influence the defensive and nutritional benefit a plant derives from the symbiosis. This study investigated the effect of aphids on the plant-AMF interaction in a conventionally managed agricultural system. As plants also interact with other soil fungi, the non-AMF fungal community was also investigated. We hypothesized that aphids would depress plant growth, and reduce intraradical AMF colonization, soil fungal hyphal density and the diversity of AM and non-AM fungal communities. To test the effects of aphids, field plots of barley enclosed with insect proof cages were inoculated with Sitobion avenae or remained uninoculated. AMF specific and total fungal amplicon sequencing assessed root fungal communities 46 days after aphid addition. Aphids did not impact above-ground plant biomass, but did increase the grain N:P ratio. Whilst aphid presence had no impact on AMF intraradical colonization, soil fungal hyphal length density, or AMF community characteristics, there was a trend for the aphid treatment to increase vesicle numbers and the relative abundance of the AMF family Gigasporaceae. Contrary to expectations, the aphid treatment also increased the evenness of the total fungal community. This suggests that aphids can influence soil communities in conventional arable systems, a result that could have implications for multitrophic feedback loops between crop pests and soil organisms across the above-below-ground interface.

AB - Arbuscular mycorrhizal fungi (AMF) form symbioses with the roots of most plant species, including cereals. AMF can increase the uptake of nutrients including nitrogen (N) and phosphorus (P), and of silicon (Si) as well as increase host resistance to various stresses. Plants can simultaneously interact with above-ground insect herbivores such as aphids, which can alter the proportion of plant roots colonized by AMF. However, it is unknown if aphids impact the structure of AMF communities colonizing plants or the extent of the extraradical mycelium produced in the soil, both of which can influence the defensive and nutritional benefit a plant derives from the symbiosis. This study investigated the effect of aphids on the plant-AMF interaction in a conventionally managed agricultural system. As plants also interact with other soil fungi, the non-AMF fungal community was also investigated. We hypothesized that aphids would depress plant growth, and reduce intraradical AMF colonization, soil fungal hyphal density and the diversity of AM and non-AM fungal communities. To test the effects of aphids, field plots of barley enclosed with insect proof cages were inoculated with Sitobion avenae or remained uninoculated. AMF specific and total fungal amplicon sequencing assessed root fungal communities 46 days after aphid addition. Aphids did not impact above-ground plant biomass, but did increase the grain N:P ratio. Whilst aphid presence had no impact on AMF intraradical colonization, soil fungal hyphal length density, or AMF community characteristics, there was a trend for the aphid treatment to increase vesicle numbers and the relative abundance of the AMF family Gigasporaceae. Contrary to expectations, the aphid treatment also increased the evenness of the total fungal community. This suggests that aphids can influence soil communities in conventional arable systems, a result that could have implications for multitrophic feedback loops between crop pests and soil organisms across the above-below-ground interface.

U2 - 10.3389/fpls.2019.00895

DO - 10.3389/fpls.2019.00895

M3 - Article

JO - Frontiers in Plant Science

JF - Frontiers in Plant Science

SN - 1664-462X

ER -