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Ecological and environmental determinants of phytochemical variability in forest trees

M. Ogwu,Sylvester Chibueze Izah,Marcella Tari Joshua

Published 2025 in Phytochemistry Reviews

ABSTRACT

Phytochemical variability in plants is driven by a complex interplay of ecological and environmental factors, including genetics, climate, and soil characteristics. Understanding these determinants is increasingly important as phytochemicals are vital in mediating plant interactions with herbivores, pathogens, and their broader ecosystem. Recent research shows that both abiotic factors—such as temperature fluctuations, ultraviolet radiation, and nutrient availability—and biotic factors, including herbivory and competition, have significant impacts on the phytochemical profiles of forest trees. Seasonal and spatial variations also influence the concentration of secondary metabolites, which are key to plant defenses and overall ecosystem health. For example, environmental stressors like drought or elevated temperatures can induce higher production of protective phytochemicals, while the developmental stage of the plant and the type of organ (leaf, root, flower) further dictate metabolite expression. This variability holds profound implications for forest conservation and climate resilience. As forests face increasing pressures from climate change, understanding the role of phytochemicals in maintaining ecosystem stability becomes critical. Phytochemicals contribute to plant fitness, species diversity, and ecological interactions, all of which are crucial for the resilience of forest ecosystems. The integration of phytochemical knowledge into forest management can promote biodiversity, enhance ecosystem services, and lead to more sustainable practices in conservation. This paper advocates for interdisciplinary research that connects ecology, chemistry, and conservation biology. Such collaboration is essential to unravel the complex relationships between phytochemical variability and environmental factors, ultimately fostering more informed conservation strategies that can safeguard forest ecosystems in the face of environmental change.

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