竞争条件下植物功能性状的表型可塑性研究进展

Phenotypic Plasticity of Plant Functional Traits in Competition Environments

植物对多种生态环境因素产生表型可塑性响应,其中,竞争是影响植物表型的重要因素.不同竞争条件下,植物的形态、克隆生长、分配、生理等多类性状均可产生表型可塑性响应,从而改变植物的竞争能力及竞争强度,进而影响竞争结果和种间关系.研究竞争条件下的植物表型可塑性有助于更全面地了解植物的生长策略,阐释植物竞争机理,深入理解植物种间关系和群落构建机理等热点问题.综述竞争条件下植物的表型可塑性研究进展,重点分析植物响应竞争的不同表型可塑性类型及对竞争关系的影响,梳理表型可塑性定量指标的发展过程,提出未来的研究方向.

The phenotypic plasticity is one of responses of plants to many ecological and environmental factors.Competition is an important factor influencing the phenotype of plants. Different phenotypic plasticity may occur with morphological,clonal,allocation,and physiological traits in various competitive environments. The phenotypic plasticity of functional traits could affect the competitive ability of plants and the intensity of competition among plants,which finally influence the outcome of competition and interspecific relationships. The study of the relationship between plants competition and their plasticity is of great importance for further understanding plant growth strategy,competition mechanism,interspecific relationships,and community assembly rules. The previous researches of phenotypic plasticity of plants in competitive environments were reviewed in this paper,including the different types of phenotypic plasticity,effects of phenotypic plasticity on the outcome of competition,and estimators of phenotypic plasticity. Future perspectives in field of plant phenotypic plasticity were also proposed.