The Evolution of Plant Ecophysiological Traits: Recent Advances and Future Directionsстатья из журнала
Аннотация: P lants exhibit enormous ecophysiological and functional diversity, which underlies variation in growth rates, productivity, population and community dynamics, and ecosystem function.The broad congruence of these variations with climatic and environmental conditions on local, regional, and global scales has fostered the concept that plant ecophysiological characteristics are well adapted to their local circumstances.For example, the repeated occurrence of plants with CAM (Crassulacean Acid Metabolism) photosynthesis and succulent leaves or stems in severely water-limited environments, and the independent evolution of these traits in numerous plant lineages, provides compelling evidence of the physiological evolution of these water-conserving traits under the influence of natural selection (Ehleringer and Monson 1993).Similarly, studies of the evolution of heavy metal tolerance confirm that natural selection may cause rapid ecophysiological evolution in just a few generations, leading to local adaptation in populations just a few meters apart (Antonovics et al. 1971).Many ecophysiological traits-considered here as all aspects of resource uptake and utilization, including biochemistry, metabolism, gas exchange, leaf structure and function, nutrient and biomass allocation, canopy structure, and growth-are likely to influence fitness and undergo adaptive evolution.Traits affecting the assimilation and use of resources such as carbon, water, and nutrients directly influence plant growth.Patterns of resource allocation to growth, reproduction, defense, and stress tolerance are also likely to be under strong selection.Phenotypic plasticity, the expression of different phenotypes by
Год издания: 2000
Авторы: David D. Ackerly, Susan A. Dudley, Sonia E. Sultan, Johanna Schmitt, James S. Coleman, Ch. Linder, Darren R. Sandquist, Monica A. Geber, Ann S. Evans, Todd E. Dawson, Martin J. Lechowicz
Издательство: Oxford University Press
Источник: BioScience
Ключевые слова: Plant and animal studies, Plant Water Relations and Carbon Dynamics, Ecology and Vegetation Dynamics Studies
Открытый доступ: bronze
Том: 50
Выпуск: 11
Страницы: 979–979