Drought and High Temperatures Impact the Plant–Pollinator Interactions in <i>Fagopyrum esculentum</i>
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 temperature...
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2025-01-01
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| author | Corentin Defalque Joy Laeremans Jonathan Drugmand Chanceline Fopessi Tcheutchoua Yu Meng Meiliang Zhou Kaixuan Zhang Muriel Quinet |
| author_facet | Corentin Defalque Joy Laeremans Jonathan Drugmand Chanceline Fopessi Tcheutchoua Yu Meng Meiliang Zhou Kaixuan Zhang Muriel Quinet |
| author_sort | Corentin Defalque |
| collection | DOAJ |
| description | 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 (<i>Fagopyrum esculentum</i>), 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. |
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| id | doaj-art-672d2247a7624add937c13232d96fa24 |
| institution | Kabale University |
| issn | 2223-7747 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Plants |
| spelling | doaj-art-672d2247a7624add937c13232d96fa242025-01-10T13:19:51ZengMDPI AGPlants2223-77472025-01-0114113110.3390/plants14010131Drought and High Temperatures Impact the Plant–Pollinator Interactions in <i>Fagopyrum esculentum</i>Corentin Defalque0Joy Laeremans1Jonathan Drugmand2Chanceline Fopessi Tcheutchoua3Yu Meng4Meiliang Zhou5Kaixuan Zhang6Muriel Quinet7Earth and Life Institute-Agronomy, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, BelgiumEarth and Life Institute-Agronomy, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, BelgiumEarth and Life Institute-Agronomy, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, BelgiumEarth and Life Institute-Agronomy, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, BelgiumEarth and Life Institute-Agronomy, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, BelgiumState Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaState Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, ChinaEarth and Life Institute-Agronomy, Université Catholique de Louvain, B-1348 Louvain-la-Neuve, BelgiumAs 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 (<i>Fagopyrum esculentum</i>), 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.https://www.mdpi.com/2223-7747/14/1/131buckwheatpollinationdroughthigh temperaturesstressplant–pollinator interactions |
| spellingShingle | Corentin Defalque Joy Laeremans Jonathan Drugmand Chanceline Fopessi Tcheutchoua Yu Meng Meiliang Zhou Kaixuan Zhang Muriel Quinet Drought and High Temperatures Impact the Plant–Pollinator Interactions in <i>Fagopyrum esculentum</i> Plants buckwheat pollination drought high temperatures stress plant–pollinator interactions |
| title | Drought and High Temperatures Impact the Plant–Pollinator Interactions in <i>Fagopyrum esculentum</i> |
| title_full | Drought and High Temperatures Impact the Plant–Pollinator Interactions in <i>Fagopyrum esculentum</i> |
| title_fullStr | Drought and High Temperatures Impact the Plant–Pollinator Interactions in <i>Fagopyrum esculentum</i> |
| title_full_unstemmed | Drought and High Temperatures Impact the Plant–Pollinator Interactions in <i>Fagopyrum esculentum</i> |
| title_short | Drought and High Temperatures Impact the Plant–Pollinator Interactions in <i>Fagopyrum esculentum</i> |
| title_sort | drought and high temperatures impact the plant pollinator interactions in i fagopyrum esculentum i |
| topic | buckwheat pollination drought high temperatures stress plant–pollinator interactions |
| url | https://www.mdpi.com/2223-7747/14/1/131 |
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