Effect of UV-B Irradiation on Seed Germination and Seedling Growth of Arabidopsis

doi:10.3724/SP.J.1259.2013.00052

Abstract

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.

Key words: Arabidopsis thaliana, seed germination, seedling growth, UV-B irradiation

Xiaoyang Li, Huize Chen, Rong Han. Effect of UV-B Irradiation on Seed Germination and Seedling Growth of Arabidopsis[J]. Chinese Bulletin of Botany, 2013, 48(1): 52-58.

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URL: https://www.chinbullbotany.com/EN/10.3724/SP.J.1259.2013.00052

https://www.chinbullbotany.com/EN/Y2013/V48/I1/52

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