EMS-Mediated Mutagenesis in Marigold Seeds and Its Effects on Seedling Growth and Physiology
文献类型： 外文期刊
作者： Meng, Chao 1 ; Ullah, Ikram 2 ; Wu, Wenjin 3 ; Zhang, Yiping 1 ; Shi, Ruixue 1 ; Luo, Shaodan 3 ; Luo, Cuixia 3 ; Nanda, Satyabrata 4 ; Seleiman, Mahmoud F. 5 ; Jiang, Yalian 1 ; Huang, Wangqi 1 ;
作者机构： 1.Yunnan Acad Agr Sci, Natl Engn Res Ctr Ornamental Hort, Yunnan Key Lab Flower Breeding, Inst Flower,Yunnan Prov Key Lab Flower Genet Impro, Kunming 650205, Peoples R China
2.Northwest A&F Univ, Coll Hort, Yangling 712100, Peoples R China
3.West Yunnan Univ, Lincang 67700, Peoples R China
4.Centurion Univ Technol & Management, Sch Biotechnol, Bhubaneswar 752050, India
5.King Saud Univ, Coll Food & Agr Sci, Plant Prod Dept, Riyadh 11451, Saudi Arabia
关键词： Marigolds; seed germination; EMS mutagenesis; genetic enhancement
期刊名称：PHYTON-INTERNATIONAL JOURNAL OF EXPERIMENTAL BOTANY （ 影响因子：1.2； 五年影响因子：1.3 ）
ISSN： 0031-9457
年卷期： 2024 年 93 卷 11 期
页码：
收录情况： SCI
摘要： Marigolds (Tagetes spp.) are popular horticultural plants worldwide. The current study aimed to investigate the optimal mutagenic conditions for marigold seeds using EMS (ethyl methanesulfonate) mutagenesis. Different concentrations and treatment times of EMS were applied to investigate their effects on the marigold seed germination rate, growth traits, antioxidant enzyme activities (i.e., SOD and POD), and malondialdehyde (MDA) contents. Results indicated that with increasing the EMS treatment duration and concentration, the seed germination rate and growth treatments were reduced, accompanied by elevated MDA content. In addition, SOD and POD activities initially correlated positively with the growth tratis at the lowest concentrations and shortest durations of EMS, but such relationship diminished beyond certain thresholds. The comprehensive analysis identified the optimal mutagenic conditions as 1% EMS treatment for 12 h, achieving a semi-lethal dose and enhancing stress-resistant components in seedlings. These findings are pivotal for advancing genetic enhancement and germplasm innovation in marigolds.
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