The Role of Phenotypic Plasticity and Within‐Environment Trait Variability in the Assembly of the Nectar Microbiome and Plant–Microbe–Animal Interactions

ABSTRACT The study of the rules that govern the relationship between phenotypic plasticity, genetic structure, and ecological success has traditionally focused on animals, plants, and a few model microbial species, whereas non‐model microorganisms have received much less attention in this regard. Th...

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Main Authors: Sergio Quevedo‐Caraballo, Sergio Álvarez‐Pérez
Format: Article
Language:English
Published: Wiley 2025-03-01
Series:Ecology and Evolution
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Online Access:https://doi.org/10.1002/ece3.71059
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author Sergio Quevedo‐Caraballo
Sergio Álvarez‐Pérez
author_facet Sergio Quevedo‐Caraballo
Sergio Álvarez‐Pérez
author_sort Sergio Quevedo‐Caraballo
collection DOAJ
description ABSTRACT The study of the rules that govern the relationship between phenotypic plasticity, genetic structure, and ecological success has traditionally focused on animals, plants, and a few model microbial species, whereas non‐model microorganisms have received much less attention in this regard. The floral nectar of angiosperms is an ephemeral, island‐like habitat for different highly adapted yeasts and bacteria. The growth of microorganisms in floral nectar depends on their ability to efficiently use the available nutrients and tolerate challenging physicochemical conditions, including high osmotic pressures, unbalanced carbon‐to‐nitrogen ratios, and the presence of diverse defensive compounds of plant origin. The production of alternative phenotypic states in response to environmental cues (i.e., phenotypic plasticity) or independently from these (within‐environment trait variability) might be particularly relevant in floral nectar, in which rapid growth is needed for population persistence and to improve the chance of animal‐mediated dispersal. In this article, we use the nectar microbiome as an example to encourage further research on the causes and ecological consequences of phenotypic plasticity and within‐environment trait variability of microbes. We review previous work on the mechanisms and potential ecological significance of the phenotypic plasticity and within‐environment trait variability displayed by nectar yeasts and bacteria. Additionally, we provide an overview of some topics that require further attention, including potential trade‐offs between different traits that are relevant for adaptation to dynamic nectar environments and the direct and indirect effects of phenotypic variability on the fitness of plants, flower‐visiting animals, and other nectar microbes. We conclude that further research on the causes and ecological consequences of phenotypic plasticity and within‐environment trait variability of microbes is essential to get a better understanding of community assembly and the establishment of ecological interactions in floral nectar and other similar highly dynamic and strongly selective microbial habitats.
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spelling doaj-art-df79be40d2e84ecd834fefbacc6277a02025-08-20T03:52:25ZengWileyEcology and Evolution2045-77582025-03-01153n/an/a10.1002/ece3.71059The Role of Phenotypic Plasticity and Within‐Environment Trait Variability in the Assembly of the Nectar Microbiome and Plant–Microbe–Animal InteractionsSergio Quevedo‐Caraballo0Sergio Álvarez‐Pérez1Department of Animal Health Complutense University of Madrid Madrid SpainDepartment of Animal Health Complutense University of Madrid Madrid SpainABSTRACT The study of the rules that govern the relationship between phenotypic plasticity, genetic structure, and ecological success has traditionally focused on animals, plants, and a few model microbial species, whereas non‐model microorganisms have received much less attention in this regard. The floral nectar of angiosperms is an ephemeral, island‐like habitat for different highly adapted yeasts and bacteria. The growth of microorganisms in floral nectar depends on their ability to efficiently use the available nutrients and tolerate challenging physicochemical conditions, including high osmotic pressures, unbalanced carbon‐to‐nitrogen ratios, and the presence of diverse defensive compounds of plant origin. The production of alternative phenotypic states in response to environmental cues (i.e., phenotypic plasticity) or independently from these (within‐environment trait variability) might be particularly relevant in floral nectar, in which rapid growth is needed for population persistence and to improve the chance of animal‐mediated dispersal. In this article, we use the nectar microbiome as an example to encourage further research on the causes and ecological consequences of phenotypic plasticity and within‐environment trait variability of microbes. We review previous work on the mechanisms and potential ecological significance of the phenotypic plasticity and within‐environment trait variability displayed by nectar yeasts and bacteria. Additionally, we provide an overview of some topics that require further attention, including potential trade‐offs between different traits that are relevant for adaptation to dynamic nectar environments and the direct and indirect effects of phenotypic variability on the fitness of plants, flower‐visiting animals, and other nectar microbes. We conclude that further research on the causes and ecological consequences of phenotypic plasticity and within‐environment trait variability of microbes is essential to get a better understanding of community assembly and the establishment of ecological interactions in floral nectar and other similar highly dynamic and strongly selective microbial habitats.https://doi.org/10.1002/ece3.71059bacteriumcommunity assemblyfloral nectarphenotypic plasticityplant–microbe–animal interactionyeast
spellingShingle Sergio Quevedo‐Caraballo
Sergio Álvarez‐Pérez
The Role of Phenotypic Plasticity and Within‐Environment Trait Variability in the Assembly of the Nectar Microbiome and Plant–Microbe–Animal Interactions
Ecology and Evolution
bacterium
community assembly
floral nectar
phenotypic plasticity
plant–microbe–animal interaction
yeast
title The Role of Phenotypic Plasticity and Within‐Environment Trait Variability in the Assembly of the Nectar Microbiome and Plant–Microbe–Animal Interactions
title_full The Role of Phenotypic Plasticity and Within‐Environment Trait Variability in the Assembly of the Nectar Microbiome and Plant–Microbe–Animal Interactions
title_fullStr The Role of Phenotypic Plasticity and Within‐Environment Trait Variability in the Assembly of the Nectar Microbiome and Plant–Microbe–Animal Interactions
title_full_unstemmed The Role of Phenotypic Plasticity and Within‐Environment Trait Variability in the Assembly of the Nectar Microbiome and Plant–Microbe–Animal Interactions
title_short The Role of Phenotypic Plasticity and Within‐Environment Trait Variability in the Assembly of the Nectar Microbiome and Plant–Microbe–Animal Interactions
title_sort role of phenotypic plasticity and within environment trait variability in the assembly of the nectar microbiome and plant microbe animal interactions
topic bacterium
community assembly
floral nectar
phenotypic plasticity
plant–microbe–animal interaction
yeast
url https://doi.org/10.1002/ece3.71059
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