Effects of NO_(2) on Inflorescence Length,Pollen/Seed Amount and Phenolic Metabolites of Common Ragweed(Ambrosia artemisiifolia L.)  

作　　者：Feng Zhao Werner Heller Susanne Stich Jorg Durner J. Barbro Winkler Claudia Traidl-Hoffmann Dieter Ernst Ulrike Frank 

机构地区：[1]Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, Germany, Neuherberg, Germany [2]Biochemical Plant Pathology, Technische Universitat München, Center of Life and Food Sciences Weihenstephan, Freising-Weihenstephan, Germany [3]Research Unit Environmental Simulation, Helmholtz Zentrum München, München, Germany [4]Institute of Environmental Medicine, UNIKA-T, Technische Universitat München, Augsburg, Germany [5]CK-CARE, Christine Kühne—Center for Allergy Research and Education, Davos-Wolfgang, Switzerland

出　　处：《American Journal of Plant Sciences》2017年第11期2860-2870,共11页美国植物学期刊（英文）

摘　　要：Ambrosia artemisiifolia L. (common ragweed) is an annual ruderal plant that is native to Northern America but nowadays is also spreading across Europe, and its pollen is known to be highly allergenic. Air pollution, e.g. NOx and climate change may affect the plant growth, pollen production and duration of the entire pollen season. In this study, ragweed plants were grown over an entire vegetation period under 40 ppb NO2/clean air (control) and 80 ppb NO2 (treatment). The inflorescence length was not affected by this air pollutant. However, the pollen amount increased, while the seed production decreased in both populations upon elevated NO2 concentrations. Regarding phenolic metabolites elevated NO2 had no effect on the amount of total phenolic metabolites, while individual metabolites showed significant changes.Ambrosia artemisiifolia L. (common ragweed) is an annual ruderal plant that is native to Northern America but nowadays is also spreading across Europe, and its pollen is known to be highly allergenic. Air pollution, e.g. NOx and climate change may affect the plant growth, pollen production and duration of the entire pollen season. In this study, ragweed plants were grown over an entire vegetation period under 40 ppb NO2/clean air (control) and 80 ppb NO2 (treatment). The inflorescence length was not affected by this air pollutant. However, the pollen amount increased, while the seed production decreased in both populations upon elevated NO2 concentrations. Regarding phenolic metabolites elevated NO2 had no effect on the amount of total phenolic metabolites, while individual metabolites showed significant changes.

关 键 词：Air Pollution Ambrosia artemisiifolia FLAVONOIDS POLLEN RAGWEED Seeds 

分 类 号：R73[医药卫生—肿瘤]