植物学报2013，Vol.48Issue(1)：52-58,7.DOI:10.3724/SP.J.1259.2013.00052
UV-B辐射对拟南芥种子萌发和幼苗生长的影响
Effect of UV-B Irradiation on Seed Germination and Seedling Growth of Arabidopsis
摘要
Abstract
To explore the impact of UV-B irradiation on Arabidopsis seed germination and seedling growth, we treated seeds of Columbia wild-type Arabidopsis with artificial UV-B and examined germination potential, germination percentage, root length, plant height, and contents of chlorophyll, soluble sugar, soluble proteins and malonaldehyde (MDA). A short period of UV-B irradiation promoted Arabidopsis growth, with a significant effect at 1.0 kJ·m-2(P<0.05), with peak germination potential and percentage, as well as root length, plant height, and contents of chlorophyll, soluble sugar and soluble proteins. However, MDA content was not affected (P>0.05). With doses > 1.0 kJ·m-2, the promotion was reduced and was inhibited with longer irradiation. Thus, suitable UV-B irradiation dose could promote seed germination and seedling growth of Arabidopsis, and a too-high dose is an inhibitor, inducing damage.关键词
拟南芥/种子萌发/幼苗生长/UV-B辐射Key words
Arabidopsis thaliana/seed germination/seedling growth/UV-B irradiation引用本文复制引用
李晓阳,陈慧泽,韩榕..UV-B辐射对拟南芥种子萌发和幼苗生长的影响[J].植物学报,2013,48(1):52-58,7.基金项目
国家自然科学基金(No.30671061)和山西省自然科学基金(No.20081101) （No.30671061）
