植物研究 ›› 2025, Vol. 45 ›› Issue (4): 533-545.doi: 10.7525/j.issn.1673-5102.2025.04.006
收稿日期:
2025-04-23
出版日期:
2025-07-20
发布日期:
2025-07-25
通讯作者:
尚旭岚
E-mail:shangxulan@njfu.edu.cn
作者简介:
李卓穗(2001—),女,硕士研究生,主要从事森林培育研究。
基金资助:
Zhuosui LI, Yilin GAO, Han LIU, Xulan SHANG()
Received:
2025-04-23
Online:
2025-07-20
Published:
2025-07-25
Contact:
Xulan SHANG
E-mail:shangxulan@njfu.edu.cn
摘要:
为探索激素组合对二倍体青钱柳(Cyclocarya paliurus)愈伤组织诱导和增殖的影响,以及继代增殖过程中主要次生代谢产物的积累规律,该研究以二倍体青钱柳叶片为外植体材料,采用正交试验设计,研究不同激素组合对愈伤组织诱导和继代增殖过程中次生代谢物积累的影响,以总三萜、总多酚、总黄酮、粗多糖产量为指标,采用熵权法筛选优良继代配方。处理2(0.5 mg·L-1 6-BA+1 mg·L-1 2,4-D+0.2 mg·L-1 NAA)下二倍体青钱柳愈伤组织诱导率最高,为100%,其次是处理9(2.5 mg·L-1 6-BA+1.5 mg·L-1 2,4-D+0.2 mg·L-1 NAA)和处理5(1.5 mg·L-1 6-BA+1 mg·L-1 2,4-D+0.4 mg·L-1 NAA),愈伤组织诱导率分别为96.67%、93.64%。影响诱导率的因素主次顺序为2,4-D>NAA>6-BA,2,4-D最佳质量浓度为1.0 mg·L-1,NAA最佳质量浓度为0.2 mg·L-1,6-BA无显著影响;诱导出的愈伤组织颜色有嫩绿色、黄绿色,愈伤组织形态均呈现疏松质地。采用不同激素组合配方进行继代增殖,各处理的愈伤组织生长及代谢产物积累存在差异,同一处理下不同继代增殖过程中愈伤组织生长性状变化也较大;按综合得分排序第1的配方为处理4(0.2 mg·L-1 KT+0.5 mg·L-1 6-BA+0.75 mg·L-1 NAA+0.4 mg·L-1 2,4-D),得分为0.44,其次是处理2(0.75 mg·L-1 6-BA+0.75 mg·L-1 NAA+0.2 mg·L-1 2,4-D)和处理6(0.2 mg·L-1 KT+1.0 mg·L-1 6-BA+0.5 mg·L-1 NAA+0.2 mg·L-1 2,4-D),综合得分分别为0.31、0.26。处理4下愈伤组织继代培养至第8代时,主要次生代谢物产量普遍达到较高水平,总三萜产量为28.91 mg·瓶-1,总多酚产量为6.89 mg·瓶-1,总黄酮产量为1.77 mg·瓶-1,粗多糖产量为57.45 mg·瓶-1。综上,最佳的二倍体青钱柳愈伤组织诱导配方为MS+0.5 mg·L-1 6-BA+1.0 mg·L-1 2,4-D+0.2 mg·L-1 NAA,继代增殖配方为MS+0.2 mg·L-1 KT+0.5 mg·L-1 6-BA+0.75 mg·L-1 NAA+0.4 mg·L-1 2,4-D。该研究可为利用青钱柳愈伤组织培养及进一步的细胞悬浮培养生产次生代谢物提供参考。
中图分类号:
李卓穗, 高一琳, 刘寒, 尚旭岚. 二倍体青钱柳愈伤组织诱导及次生代谢物积累[J]. 植物研究, 2025, 45(4): 533-545.
Zhuosui LI, Yilin GAO, Han LIU, Xulan SHANG. Callus Induction and Secondary Metabolites Accumulation of Diploid Cyclocarya paliurus[J]. Bulletin of Botanical Research, 2025, 45(4): 533-545.
表3
愈伤组织诱导正交试验结果与极差分析
试验号 No. | 因素Factor | 诱导率 Induction rate/% | 愈伤组织颜色 Callus color | 愈伤组织质地 Callus texture | ||
---|---|---|---|---|---|---|
6-BA/(mg·L-1) | 2,4-D/(mg·L-1) | NAA/(mg·L-1) | ||||
1 | 0.5 | 0.5 | 0 | 59.05±0.02d | 多数嫩绿色,少数黄绿色 Mostly light-green,a few yellow-green | 疏松 Loose |
2 | 0.5 | 1.0 | 0.2 | 100.00±0.00a | 嫩绿、黄绿各占半数 Half light-green,half yellow-green | |
3 | 0.5 | 1.5 | 0.4 | 77.75±0.06bc | 多数嫩绿色,少数黄绿色 Mostly light-green,a few yellow-green | |
4 | 1.5 | 0.5 | 0.2 | 74.44±0.08bc | 多数嫩绿色,少数黄绿色 Mostly light-green,a few yellow-green | |
5 | 1.5 | 1.0 | 0.4 | 93.64±0.06a | 嫩绿色 Light-green | |
6 | 1.5 | 1.5 | 0 | 67.94±0.11cd | 多数黄绿色,少数嫩绿色 Mostly yellow-green,a few light-green | |
7 | 2.5 | 0.5 | 0.4 | 71.59±0.12cd | 多数黄绿色,少数嫩绿色 Mostly yellow-green,a few light-green | |
8 | 2.5 | 1.0 | 0 | 86.90±0.07ab | 多数嫩绿色,少数黄绿色 Mostly light-green,a few yellow-green | |
9 | 2.5 | 1.5 | 0.2 | 96.67±0.06a | 嫩绿色 Light-green | |
k1 | 78.932 | 68.360 | 71.296 | |||
k2 | 78.672 | 93.514 | 90.370 | |||
k3 | 85.053 | 80.784 | 80.991 | |||
R | 6.380 | 25.154 | 19.074 |
表6
优良继代增殖培养配方的综合得分及排序
处理 No. | 各指标得分 The index scores | 综合得分 Comprehensive score | 排名 Rank | |||
---|---|---|---|---|---|---|
总三萜产量 Total triterpenoid production | 总多酚产量 Total polyphenol production | 总黄酮产量 Total flavonoid production | 粗多糖产量 Crude polysaccharide production | |||
4 | 0.085 | 0.088 | 0.132 | 0.129 | 0.435 | 1 |
2 | 0.060 | 0.049 | 0.093 | 0.111 | 0.312 | 2 |
6 | 0.047 | 0.077 | 0.071 | 0.066 | 0.260 | 3 |
5 | 0.054 | 0.053 | 0.053 | 0.067 | 0.227 | 4 |
9 | 0.041 | 0.054 | 0.045 | 0.071 | 0.212 | 5 |
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