Abstract
Abstract Complex relationships occur among plants, mycorrhizal fungi, and herbivores. By altering plant nutrient status, mycorrhizas may alter herbivory or plant tolerance to herbivory via compensatory regrowth. We examined these interactions by assessing grasshopper preference and plant growth and fungal colonization responses to herbivory under mycorrhizal and non‐mycorrhizal conditions within tallgrass prairie microcosms. Mycorrhizal symbiosis increased plant regrowth following defoliation, and some strongly mycotrophic plant species showed overcompensation in response to herbivory when they were mycorrhizal. Although grasshoppers spent more time on mycorrhizal plants, herbivory intensity did not differ between mycorrhizal and non‐mycorrhizal plants. Aboveground herbivory by grasshoppers significantly increased mycorrhizal fungal colonization of plant roots. Thus mycorrhizas may greatly benefit plants subjected to herbivory by stimulating compensatory growth, and herbivores, in turn, may increase the development of the symbiosis. Our results also indicate strong interspecific differences among tallgrass prairie plant species in their responses to the interaction of aboveground herbivores and mycorrhizal symbionts.
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Claims 6
Claim · model-written summary
Mycorrhizal symbiosis increased plant regrowth following defoliation.
Not reportedComparator
Verbatim
e0“Mycorrhizal symbiosis increased plant regrowth following defoliation”
Claim · model-written summary
Some strongly mycotrophic plant species showed overcompensation in response to herbivory when mycorrhizal.
Verbatim
e0“some strongly mycotrophic plant species showed overcompensation in response to herbivory when they were mycorrhizal”
Claim · model-written summary
Grasshoppers spent more time on mycorrhizal plants than on non-mycorrhizal plants.
- Taxon
- plantsViridiplantaee0
- Treatment
- mycorrhizale0
- Interactor
- grasshoppersAcridomorphae0herbivore
- Outcome
- timee0
- Direction
- moree0
Not reportedComparator
Verbatim
e0“grasshoppers spent more time on mycorrhizal plants”
Claim · model-written summary
Herbivory intensity did not differ between mycorrhizal and non-mycorrhizal plants.
Not reportedTaxonComparator
Verbatim
e0“herbivory intensity did not differ between mycorrhizal”
Claim · model-written summary
Aboveground herbivory by grasshoppers significantly increased mycorrhizal fungal colonization of plant roots.
- Taxon
- plante0
- Treatment
- Aboveground herbivory by grasshopperse0
- Interactor
- grasshoppersAcridomorphae0herbivore
- Outcome
- mycorrhizal fungal colonization of plant rootse0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Aboveground herbivory by grasshoppers significantly increased mycorrhizal fungal colonization of plant roots”
Claim · model-written summary
Tallgrass prairie plant species differ strongly in their responses to the interaction of aboveground herbivores and mycorrhizal symbionts.
Verbatim
e0“strong interspecific differences among tallgrass prairie plant species in their responses to the interaction of aboveground herbivores and mycorrhizal symbionts”