Plant guttation provides nutrient-rich food for insects

Plant guttation is a fluid from xylem and phloem sap secreted at the margins of leaves frommany plant species. All previous studies have considered guttation as awater source for insects. Here,we hypothesized that plant guttation serves as a reliable and nutrient-rich food source for insects with...

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Autores principales: Urbaneja-Bernat, Pablo, Tena, Alejandro, González-Cabrera, Joel, Rodríguez-Saona, César
Formato: Artículo
Lenguaje:Inglés
Publicado: Royal Society 2020
Materias:
Acceso en línea:http://hdl.handle.net/20.500.11939/6597
https://royalsocietypublishing.org/doi/10.1098/rspb.2020.1080
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author Urbaneja-Bernat, Pablo
Tena, Alejandro
González-Cabrera, Joel
Rodríguez-Saona, César
author_browse González-Cabrera, Joel
Rodríguez-Saona, César
Tena, Alejandro
Urbaneja-Bernat, Pablo
author_facet Urbaneja-Bernat, Pablo
Tena, Alejandro
González-Cabrera, Joel
Rodríguez-Saona, César
author_sort Urbaneja-Bernat, Pablo
collection ReDivia
description Plant guttation is a fluid from xylem and phloem sap secreted at the margins of leaves frommany plant species. All previous studies have considered guttation as awater source for insects. Here,we hypothesized that plant guttation serves as a reliable and nutrient-rich food source for insects with effects on their communities. Using highbush blueberries as a study system, we demonstrate that guttation droplets contain carbohydrates and proteins. Insects fromthree feeding lifestyles, a herbivore, a parasitic wasp and a predator, increased their longevity and fecundity when fed on these guttation droplets compared to those fed on control water. Our results also show that guttation droplets, unlike nectar, are present on leaves during the entire growing season and are visited by numerous insects of different orders. In exclusion-field experiments, the presence of guttation modified the insect community by increasing the number of predators and parasitic wasps that visited the plants. Overall, our results demonstrate that plant guttation is highly reliable, compared to other plant-derived food sources such as nectar, and that it increases the communities and fitness of insects. Therefore, guttation represents an important plant trait with profound implications on multi-trophic insect–plant interactions.
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spelling ReDivia65972025-04-25T14:47:26Z Plant guttation provides nutrient-rich food for insects Urbaneja-Bernat, Pablo Tena, Alejandro González-Cabrera, Joel Rodríguez-Saona, César Plant-derived foods Insect community Multi-trophic interactions H10 Pests of plants Biological control Plant guttation is a fluid from xylem and phloem sap secreted at the margins of leaves frommany plant species. All previous studies have considered guttation as awater source for insects. Here,we hypothesized that plant guttation serves as a reliable and nutrient-rich food source for insects with effects on their communities. Using highbush blueberries as a study system, we demonstrate that guttation droplets contain carbohydrates and proteins. Insects fromthree feeding lifestyles, a herbivore, a parasitic wasp and a predator, increased their longevity and fecundity when fed on these guttation droplets compared to those fed on control water. Our results also show that guttation droplets, unlike nectar, are present on leaves during the entire growing season and are visited by numerous insects of different orders. In exclusion-field experiments, the presence of guttation modified the insect community by increasing the number of predators and parasitic wasps that visited the plants. Overall, our results demonstrate that plant guttation is highly reliable, compared to other plant-derived food sources such as nectar, and that it increases the communities and fitness of insects. Therefore, guttation represents an important plant trait with profound implications on multi-trophic insect–plant interactions. 2020-09-16T11:45:26Z 2020-09-16T11:45:26Z 2020 publishedVersion Urbaneja-Bernat, P., Tena, A., González-Cabrera, J., Rodriguez-Saona, C. (2020) Plant guttation provides nutrient-rich food for insects. Proc. R. Soc. B 287: 20201080 http://hdl.handle.net/20.500.11939/6597 10.1098/rspb.2020.1080 https://royalsocietypublishing.org/doi/10.1098/rspb.2020.1080 en openAccess Royal Society electronico
spellingShingle Plant-derived foods
Insect community
Multi-trophic interactions
H10 Pests of plants
Biological control
Urbaneja-Bernat, Pablo
Tena, Alejandro
González-Cabrera, Joel
Rodríguez-Saona, César
Plant guttation provides nutrient-rich food for insects
title Plant guttation provides nutrient-rich food for insects
title_full Plant guttation provides nutrient-rich food for insects
title_fullStr Plant guttation provides nutrient-rich food for insects
title_full_unstemmed Plant guttation provides nutrient-rich food for insects
title_short Plant guttation provides nutrient-rich food for insects
title_sort plant guttation provides nutrient rich food for insects
topic Plant-derived foods
Insect community
Multi-trophic interactions
H10 Pests of plants
Biological control
url http://hdl.handle.net/20.500.11939/6597
https://royalsocietypublishing.org/doi/10.1098/rspb.2020.1080
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