Microbial-Mediated Plant Growth Promotion and Pest Suppression Varies Under Climate Change

Zytynska, Sharon E ORCID: 0000-0002-0174-3303, Eicher, Moritz, Rothballer, Michael and Weisser, Wolfgang W (2020) Microbial-Mediated Plant Growth Promotion and Pest Suppression Varies Under Climate Change. FRONTIERS IN PLANT SCIENCE, 11. 573578-.

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Abstract

Climate change is altering the dynamics of crop pests and diseases resulting in reduced crop yields. Using beneficial soil bacterial to increase crop health is a quickly developing area in sustainable agriculture, but it is unknown if climate change or interactions with other species could alter their effect. The plant growth-promoting rhizobacterium <i>Acidovorax radicis</i> N35 is known to increase barley (<i>Hordeum vulgare</i>) plant growth under laboratory conditions, and we tested the stability of the plant-bacterial interactions when exposed to elevated carbon dioxide (CO₂) and ozone (O₃) levels while infesting the aboveground leaves with cereal aphids (<i>Sitobion avenae</i>) and the soil with beneficial earthworms. <i>Acidovorax radicis</i> N35 increased plant growth and reduced insect growth - with greatest effect in a high-stress elevated O₃ environment, but reduced effects under elevated CO₂. Earthworms promoted both plant and insect growth, but inoculation with <i>A. radicis</i> N35 alleviated some of the earthworm-mediated increase in pest abundance, particularly in the ambient environment. The consistency of these beneficial effects highlights the potential of exploiting local species interactions for predicting and mitigating climate change effects in managed systems. We conclude that microbial bioprotectants have high potential for benefiting agriculture <i>via</i> plant-growth promotion and pest suppression.

Item Type:	Article
Uncontrolled Keywords:	aphid, barley, carbon dioxide, earthworms, ozone, PGPR, plant-insect-microbe, rhizobacteria
Depositing User:	Symplectic Admin
Date Deposited:	13 Nov 2020 11:26
Last Modified:	18 Jan 2023 23:21
DOI:	10.3389/fpls.2020.573578
Open Access URL:	https://doi.org/10.3389/fpls.2020.573578
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3106816

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• Microbial-Mediated Plant Growth Promotion and Pest Suppression Varies Under Climate Change. (deposited 02 Sep 2020 11:21)
  • Microbial-Mediated Plant Growth Promotion and Pest Suppression Varies Under Climate Change. (deposited 13 Nov 2020 11:26) [Currently Displayed]