Physiological impact of pollinator exposure on plants : A comparative study of cucumber and mint
DOI:
https://doi.org/10.24425/jwld.2025.156043Abstract
It is well known that insects can influence yield and harvest quality of plants by activating plant response mechanisms to their activity. Scientists have been increasingly exploring these mechanisms in recent years, however analysis of plant responses to pollinators still requires further work. A research method based on chlorophyll fluorescence and gas exchange allows for quick and precise determination of a plant’s condition, including whether it is experiencing physiological stress. The aim of this study was to determine the extent to which interactions with pollinators affect the photosynthetic efficiency of plants. The research involved two different plant species: perennial - pepper mint (Mentha sp.) and annual - pickling cucumber (Cucumis sativus L.). Plants were grown in two variants: exposed and unexposed to pollinators. Gas exchange and chlorophyll fluorescence parameters, as well as pigments content were analysed. The results showed no significant differences in pigment content, gas exchange, or chlorophyll fluorescence in mint. Cucumber exhibited significant changes in chlorophyll and carotenoid content, as well as in stomatal conductance and fluorescence parameters. Plants unexposed to pollinators showed increased photosynthetic pigment levels and improved PSII stability, although it simultaneously reduced CO2 assimilation intensity. It may suggest that perennial mint tolerates pollinator effects more effectively, while annual cucumber responds with dynamic adjustments in photosynthetic metabolism.References
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