Interaction Between Flowers and Pollinators

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Ecology".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 866

Special Issue Editor


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Guest Editor
Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
Interests: biodiversity; climate change; plant physiology; plant biology

Special Issue Information

Dear Colleagues,

The ecological aspects of plants–pollinators interaction have become increasingly crucial in biodiversity conservation. Indeed, the biological complexity and resilience of natural and anthropized ecosystems, subjected to increasing climate change, represent some of the most important ecological challenges of the new millennium. While the protection of flora and fauna in natural ecosystems can be allowed by the creation of natural parks, it is necessary to evolve eco-compatible management in the agroecosystem that limits the feedback rarefaction of both plants and their pollinators.

The fascinating mutualism between flora and pollinators is much studied, but many aspects remain explored in terms of the chemical (scents and nectar composition) and physical (shapes and colors of the corollas) strategies of both: i) selective attraction and ii) the repulsion of unwanted insects.

The risk of the rarefaction and/or extinction of both plants and pollinators is not random but depends on the degree of mutual specialization. Examining these interactions in greater detail (generalist or specialized) will make it possible to plan land management strategies that aim to enhance the survival of the most threatened species. All agronomic strategies capable of promoting both the level of biodiversity (wildflowers–pollinators) and the related aesthetic impact should also be addressed. It is also important to investigate whether and to what extent common, predominantly autogamous or anemogamous weeds can constitute an occasional source of pollen and/or nectar in the absence of typical entomogamous species. It is also important to verify the eventual gene-flow mediated by poorly or non-specialized insects commonly referred to as nectar–pollen predators.

In summary, this Special Issue aims to compile the skills of agronomists, botanists, entomologists, chemists and ecologists in order to provide basic and applied knowledge that can inspire biodiversity conservation strategies.

Original research articles and reviews are welcome. The scope of this Special Issue includes, but is not limited to, the following topics:

(I) Plant-pollinator interaction and co-evolution;

(II) Agronomic strategies to enable the conservation of biodiversity;

(III) Pollination efficiency of generalist and specialized pollinators;

(IV) Ecosystem services provided by plant-pollinator mutualism;

(V) Aesthetic sustainability of wildflower landscapes.

Dr. Stefano Benvenuti
Guest Editor

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Keywords

  • insect pollination
  • pollinator ecosystem service
  • biodiversity conservation of threatened plants
  • plant–pollinator mutualism when subjected to climate change
  • co-evolution of specialized plant–pollinator interactions
  • wildflower landscape sustainability

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Published Papers (1 paper)

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Research

21 pages, 2319 KiB  
Article
Drought and High Temperatures Impact the Plant–Pollinator Interactions in Fagopyrum esculentum
by Corentin Defalque, Joy Laeremans, Jonathan Drugmand, Chanceline Fopessi Tcheutchoua, Yu Meng, Meiliang Zhou, Kaixuan Zhang and Muriel Quinet
Plants 2025, 14(1), 131; https://doi.org/10.3390/plants14010131 - 4 Jan 2025
Viewed by 643
Abstract
As a result of climate change, temperate regions are facing the simultaneous increase in water and heat stress. These changes may affect the interactions between plants and pollinators, which will have an impact on entomophilous crop yields. Here, we investigated the consequences of [...] Read more.
As a result of climate change, temperate regions are facing the simultaneous increase in water and heat stress. These changes may affect the interactions between plants and pollinators, which will have an impact on entomophilous crop yields. Here, we investigated the consequences of high temperatures and water stress on plant growth, floral biology, flower-reward production, and insect visitation of five varieties of common buckwheat (Fagopyrum esculentum), an entomophilous crop of growing interest for sustainable agriculture. The plants were grown under two temperature regimes (21 °C/19 °C and 28 °C/26 °C, day/night) and two watering regimes (well-watered and water-stressed). Our results showed that the reproductive growth was more affected by drought and high temperatures than was the vegetative growth, and that combined stress had more detrimental effects. However, the impact of drought and high temperatures was variety-dependent. Drought and/or high temperatures reduced the number of open flowers per plant, as well as the floral resources (nectar and pollen), resulting in a decrease in pollinator visits, mainly under combined stress. Although the proportion of Hymenoptera visiting the flowers decreased with high temperatures, the proportion of Diptera remained stable. The insect visiting behavior was not strongly affected by drought and high temperatures. In conclusion, the modification of floral display and floral resources induced by abiotic stresses related to climate change alters plant–pollinator interactions in common buckwheat. Full article
(This article belongs to the Special Issue Interaction Between Flowers and Pollinators)
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