Interrelated effects of mycorrhiza and free‐living nitrogen fixers cascade up to aboveground herbivores

Botir KHAİTOV; José David Patiño‐Ruiz; Tatiana Pina; Peter Schausberger

doi:10.1002/ece3.1654

journal article Open Access Aug 18, 2015

Interrelated effects of mycorrhiza and free‐living nitrogen fixers cascade up to aboveground herbivores

Botir KHAİTOV

José David Patiño‐Ruiz Tatiana Pina Peter Schausberger

Ecology and Evolution Vol. 5 No. 17 pp. 3756-3768 · Wiley

View at Publisher Save 10.1002/ece3.1654

Abstract

AbstractAboveground plant performance is strongly influenced by belowground microorganisms, some of which are pathogenic and have negative effects, while others, such as nitrogen‐fixing bacteria and arbuscular mycorrhizal fungi, usually have positive effects. Recent research revealed that belowground interactions between plants and functionally distinct groups of microorganisms cascade up to aboveground plant associates such as herbivores and their natural enemies. However, while functionally distinct belowground microorganisms commonly co‐occur in the rhizosphere, their combined effects, and relative contributions, respectively, on performance of aboveground plant‐associated organisms are virtually unexplored. Here, we scrutinized and disentangled the effects of free‐living nitrogen‐fixing (diazotrophic) bacteriaAzotobacter chroococcum(DB) and arbuscular mycorrhizal fungiGlomus mosseae(AMF) on host plant choice and reproduction of the herbivorous two‐spotted spider miteTetranychus urticaeon common bean plantsPhaseolus vulgaris. Additionally, we assessed plant growth, andAMFandDBoccurrence and density as affected by each other. BothAMFalone andDBalone increased spider mite reproduction to similar levels, as compared to the control, and exerted additive effects under co‐occurrence. These effects were similarly apparent in host plant choice, that is, the mites preferred leaves from plants with bothAMFandDBto plants withAMForDBto plants grown withoutAMFandDB.DB, which also act asAMFhelper bacteria, enhanced root colonization byAMF, whereasAMFdid not affectDBabundance.AMFbut notDBincreased growth of reproductive plant tissue and seed production, respectively. BothAMFandDBincreased the biomass of vegetative aboveground plant tissue. Our study breaks new ground in multitrophic belowground–aboveground research by providing first insights into the fitness implications of plant‐mediated interactions between interrelated belowground fungi–bacteria and aboveground herbivores.

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Citations

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References

Details

Published: Aug 18, 2015
Vol/Issue: 5(17)
Pages: 3756-3768
License: View

Authors

B

Botir KHAİTOV

Group of Arthropod Ecology and Behavior Department of Crop Sciences University of Natural Resources and Life Sciences Peter Jordanstrasse 82 1190 Vienna Austria; Division of Legume Crops Department of Plant Sciences Tashkent State Agrarian University Universitetskaya street 2a 370 Tashkent Uzbekistan

J

José David Patiño‐Ruiz

Group of Arthropod Ecology and Behavior Department of Crop Sciences University of Natural Resources and Life Sciences Peter Jordanstrasse 82 1190 Vienna Austria

T

Tatiana Pina

Group of Arthropod Ecology and Behavior Department of Crop Sciences University of Natural Resources and Life Sciences Peter Jordanstrasse 82 1190 Vienna Austria; Departament de Ciències Agràries i del Medi Natural Unitat Associada d'Entomologia UJI/IVIA Universitat Jaume I Campus del Riu Sec 12071 Castelló de la Plana Spain

P

Peter Schausberger

Group of Arthropod Ecology and Behavior Department of Crop Sciences University of Natural Resources and Life Sciences Peter Jordanstrasse 82 1190 Vienna Austria

Funding

Eurasia Pacific Uninet Award: EPU 26/2013

Erasmus Mundus CASIA

Cite This Article

Botir KHAİTOV, José David Patiño‐Ruiz, Tatiana Pina, et al. (2015). Interrelated effects of mycorrhiza and free‐living nitrogen fixers cascade up to aboveground herbivores. Ecology and Evolution, 5(17), 3756-3768. https://doi.org/10.1002/ece3.1654

Interrelated effects of mycorrhiza and free‐living nitrogen fixers cascade up to aboveground herbivores

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