热带亚热带植物学报2025，Vol.33Issue(3)：307-314,8.DOI:10.11926/jtsb.4879
温度对不同种源南酸枣叶片性状可塑性的影响
Effect of Temperature on Plasticity of Leaf Traits of Choerospondias axillaris from Different Provenaces
摘要
Abstract
Trait plasticity is the key to plant adaptation to climate change.However,the understanding of how climate factors affect trait plasticity is still limited.In this study,the plasticity of leaf traits in different provenances of 14 Choerospondias axillaris under temperature and precipitation gradient were studied through homogenous garden experiment.The results showed that the leaf trait plasticity of C.axillaris was 0.034-0.236.Trait plasticity among different provenances exhibited significant variation along temperature gradients,but except for leaf non-structural carbohydrate plasticity,the other traits were unrelated to precipitation factors.Specifically,leaf length plasticity was positively correlated with annual mean temperature,mean temperature in the wettest season and the coldest season.Leaf area plasticity was positively correlated with annual mean temperature and mean temperature in the coldest season,which was negatively correlated with mean diurnal temperature range.The plasticity of leaf relative water content was positively correlated with annual mean temperature and mean temperature in the coldest season.The leaf non-structural carbohydrate plasticity was negatively correlated with annual mean temperature and mean temperature in the coldest season.Therefore,the temperature factors limited the trait plasticity of C.axillaris.Moreover,the variation of leaf phenotypic plasticity might be the main adaptive strategy of the population to temperature change during long-term evolution.This study clarified the relationship between temperature and precipitation and trait plasticity,which could provide scientific reference for predicting adaptability change and germplasm resource protection under the background of climate change.关键词
南酸枣/变异系数/叶片功能性状/温度/降水/种源试验Key words
Choerospondias axillaris/Coefficient of variation/Leaf functional trait/Temperature/Rainfall/Provenance test引用本文复制引用
李婷,叶学敏,孙荣喜,吴南生..温度对不同种源南酸枣叶片性状可塑性的影响[J].热带亚热带植物学报,2025,33(3):307-314,8.基金项目
国家自然科学基金项目(32160387) （32160387）
江西省林业科学院青年人才培养项目(2024520802)资助 This work was supported by the National Natural Science Foundation of China(Grant No.32160387),and the Project for Youth Talent Training of Jiangxi Academy of Forestry(Grant No.2024520802). （2024520802）
