PENG Lyuchun,ZHANG Chunhua,JIE Weijia,et al.Establishment of an Efficient Propagation System for Rhododendron by Utilizing Temproary Immersion Bioreactor[J].Northern Horticulture,2025,(11):48-55.[doi:10.11937/bfyy.20244435]
利用间歇浸没式生物反应器建立高山杜鹃高效繁殖体系
- Title:
- Establishment of an Efficient Propagation System for Rhododendron by Utilizing Temproary Immersion Bioreactor
- 文章编号:
- 1001-0009(2025)11-0048-08
- 关键词:
- 高山杜鹃; 间歇浸没式生物反应器; 高效繁殖体系
- 分类号:
- S 685.21
- 文献标志码:
- A
- 摘要:
- 以高山杜鹃‘阳春雪’组培苗为试验,采用间歇浸没式生物反应器,研究了营养液浓度、激素浓度和间歇浸没频率对增殖苗形态和生理指标的影响,并运用主成分分析方法进行不同培养条件对增殖苗生长影响的综合评价,以期为建立基于间歇浸没式生物反应器的高山杜鹃高效繁殖技术体系提供参考依据。结果表明:间歇浸没频率是影响组培苗长势和增殖效果的主要因素,以3/2WPM为基本培养基添加ZT 1.0 mg·L-1、NAA 0.1 mg·L-1、蔗糖30 mg·L-1,间歇浸没频率3 min·(12h)-1是高山杜鹃‘阳春雪’试管苗进行生物反应器培养的最佳条件。与固体培养相比,高山杜鹃组培苗的株高、茎粗和增殖芽数表现出显著优势,分别达到了2.67 cm、0.15 cm和3个·株-1;可溶性糖、可溶性蛋白质和叶绿素含量也表明生物反应器培养对组培苗无明显胁迫影响。
- Abstract:
- Taking tissue culture seedlings of the Rhododendron ‘Yangchunxue’ as the test material,an temproary immersion bioreactor was employed to investigate the effects of nutrient solution concentration,hormone concentration,and intermittent immersion frequency on the morphological and physiological indices of proliferated seedlings.Principal component analysis was applied to comprehensively evaluate the impact of different culture conditions on the growth of proliferated seedlings,in order to provide reference for establish an efficient propagation technology system for rhododendron based on the intermittent immersion bioreactor.The results showed that the intermittent immersion frequency was the main factor affecting the growth and proliferation of tissue culture seedlings.The optimal conditions for the bioreactor system of ‘Yangchunxue’ seedling were 3/2WPM supplemented with ZT 1.0 mg·L-1,NAA 0.1 mg·L-1 and sucrose 30 mg·L-1,and the intermittent immersion frequency was 3 min·(12 hours)-1.Compared with solid culture,the plant height,stem diameter and number of proliferating buds of tissue culture seedlings showed significant advantages,reaching 2.67 cm,0.15 cm and 3 pieces·plant-1.The contents of soluble sugar,soluble protein and chlorophyll also showed that bioreactor system had no obvious stress effect on tissue culture seedlings.
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备注/Memo
第一作者简介:彭绿春(1981-),女,博士,研究员,现主要从事杜鹃花繁育及种质创新等研究工作。E-mail:green315@126.com.责任作者:李世峰(1970-),男,硕士,研究员,现主要从事新型花卉植物的研究和开发等研究工作。E-mail:452977351@qq.com.基金项目:云南省科技厅重大科技专项计划资助项目(202302AE090018);云南省种子种业联合实验室资助项目(202205AR070001-7)。收稿日期:2024-11-12