Paper · 2020 · Frontiers in Plant Science

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

Sharon E. Zytynska; Moritz Eicher; Michael Rothballer; et al.

5
claims
10
verbatim quotes
44
citations
3
research areas
✓
Open access · cc-by

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 Acidovorax radicis N35 is known to increase barley (Hordeum vulgare) 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 (Sitobion avenae) and the soil with beneficial earthworms. Acidovorax radicis 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 A. radicis 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 via plant-growth promotion and pest suppression.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A. radicis N35 increased barley growth.

Treatment
Acidovorax radicis N35e0
Interactor
Acidovorax radicis N35Acidovorax radicis N35e0symbiont
Outcome
plant growthe0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Acidovorax radicis N35 increased plant growth”

✓ located verbatim in the source · abstract, characters 713–758 · show in text ↑
t0

“barley (Hordeum vulgare)”

✓ located verbatim in the source · abstract, characters 397–421 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A. radicis N35 reduced cereal aphid growth.

Treatment
Acidovorax radicis N35e0
Interactor
insecte0pest
Second interactor
Acidovorax radicis N35Acidovorax radicis N35e0symbiont
Outcome
insect growthe0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Acidovorax radicis N35 increased plant growth and reduced insect growth – with greatest effect in a high-stress elevated O3 environment, but reduced effects under elevated CO2.”

✓ located verbatim in the source · abstract, characters 713–889 · show in text ↑
t0

“barley (Hordeum vulgare)”

✓ located verbatim in the source · abstract, characters 397–421 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

A. radicis effects were greatest under elevated O3 and reduced under elevated CO2.

Treatment
elevated O3e0
Outcome
effecte0
Direction
greateste0
Comparator
elevated CO2e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“with greatest effect in a high-stress elevated O3 environment, but reduced effects under elevated CO2.”

✓ located verbatim in the source · abstract, characters 787–889 · show in text ↑
t0

“barley (Hordeum vulgare)”

✓ located verbatim in the source · abstract, characters 397–421 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Earthworms promoted plant and insect growth.

Treatment
Earthwormse0
Interactor
EarthwormsCrassiclitellatae0other
Outcome
plant and insect growthe0
Direction
promotede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Earthworms promoted both plant and insect growth”

✓ located verbatim in the source · abstract, characters 890–938 · show in text ↑
t0

“barley (Hordeum vulgare)”

✓ located verbatim in the source · abstract, characters 397–421 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A. radicis N35 alleviated some earthworm-mediated pest abundance increases, particularly under ambient conditions.

Treatment
inoculation with A. radicis N35e0
Interactor
peste0pest
Second interactor
A. radicis N35Acidovorax radicise0symbiont
Outcome
pest abundancee0
Direction
alleviatede0
Qualifier
ambient environmente0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“inoculation with A. radicis N35 alleviated some of the earthworm-mediated increase in pest abundance, particularly in the ambient environment.”

✓ located verbatim in the source · abstract, characters 944–1086 · show in text ↑
t0

“barley (Hordeum vulgare)”

✓ located verbatim in the source · abstract, characters 397–421 · show in text ↑

Acidovorax radicis · pest · Hordeum vulgare (barley)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

Acidovorax radicis · growth · Hordeum vulgare (barley)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

inoculation · pest · Hordeum vulgare (barley)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

7 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. positive

5 papers more in this group

See all 9 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.