植物研究 ›› 2025, Vol. 45 ›› Issue (4): 558-568.doi: 10.7525/j.issn.1673-5102.2025.04.008
王莹莹1, 余登利2, 邱风进1, 晏融融1, 胡国雄1()
收稿日期:
2024-12-13
出版日期:
2025-07-20
发布日期:
2025-07-25
通讯作者:
胡国雄
E-mail:gxhu@gzu.edu.cn
作者简介:
王莹莹(1998—),女,硕士,主要从事植物组织培养研究。
基金资助:
Yingying WANG1, Dengli YU2, Fengjin QIU1, Rongrong YAN1, Guoxiong HU1()
Received:
2024-12-13
Online:
2025-07-20
Published:
2025-07-25
Contact:
Guoxiong HU
E-mail:gxhu@gzu.edu.cn
摘要:
为建立濒危植物岩生鼠尾草(Salvia petrophila)的组培快繁体系,对岩生鼠尾草成熟种子消毒及萌发、基部带腋芽茎段继代增殖、无菌苗茎段愈伤组织诱导及分化、不定芽生根、炼苗移栽进行研究。结果表明:(1)岩生鼠尾草种子的适宜消毒方法为75%乙醇溶液处理30 s,5%次氯酸钠(NaClO)溶液消毒8 min,种子发芽率为40.83%。(2)种子萌发适宜培养基为MS+1.0 mg·L-1 6-BA+0.1 mg·L-1 NAA,发芽率为71.12%。(3)基部带腋芽茎段继代增殖适宜培养基为MS+1.0 mg·L-1 6-BA+0.1 mg·L-1 NAA,增殖系数为5.5。(4)无菌苗茎段愈伤组织诱导适宜培养基为MS+1.0 mg·L-1 6-BA+1.0 mg·L-1 2,4-D,诱导率高达97.10%;愈伤组织适宜分化培养基为MS+1.5 mg·L-1 6-BA+0.1 mg·L-1 NAA。(5)岩生鼠尾草不定芽生根适宜培养基为1/2MS+1.0 mg·L-1 NAA,生根系数高达99.11%。(6)泥炭土、珍珠岩和蛭石体积比为1∶1∶1的混合基质为适宜栽培基质,移栽成活率高达85.5%。研究结果可为岩生鼠尾草的保护和利用奠定技术基础,同时也可为鼠尾草属其他植物的繁殖技术提供新的研究思路。
中图分类号:
王莹莹, 余登利, 邱风进, 晏融融, 胡国雄. 濒危植物岩生鼠尾草的组培快繁技术[J]. 植物研究, 2025, 45(4): 558-568.
Yingying WANG, Dengli YU, Fengjin QIU, Rongrong YAN, Guoxiong HU. Tissue Culture and Rapid Propagation of Endangered Salvia petrophila[J]. Bulletin of Botanical Research, 2025, 45(4): 558-568.
表1
不同消毒处理对种子发芽的影响
编号 Number | 消毒剂 Disinfectant | 消毒时间 Disinfection time/min | 污染率 Contamination rate/% | 发芽率 Germination rate/% | 死亡率 Mortality rate/% |
---|---|---|---|---|---|
1 | 2% NaClO | 7 | 89.10±0.38a | 8.67±0.33f | 2.23±0.54e |
2 | 2% NaClO | 8 | 83.67±0.88b | 10.17±0.44e | 6.17±0.60d |
3 | 2% NaClO | 9 | 79.00±0.58c | 15.50±0.29d | 5.50±0.50d |
4 | 5% NaClO | 7 | 41.50±0.87d | 32.77±0.64b | 25.73±0.50b |
5 | 5% NaClO | 8 | 37.20±0.42e | 40.83±0.60a | 21.97±1.02c |
6 | 5% NaClO | 9 | 26.33±0.67f | 21.10±0.38c | 52.57+0.35a |
图2
不同质量浓度激素组合下岩生鼠尾草丛生芽继代增殖情况A.0.5 mg·L-1 6-BA和0.1 mg·L-1 NAA处理;B.0.5 mg·L-1 6-BA和0.2 mg·L-1 NAA处理;C.0.5 mg·L-1 6-BA和0.3 mg·L-1 NAA处理;D.1.0 mg·L-1 6-BA和0.1 mg·L-1 NAA处理;E.1.0 mg·L-1 6-BA和0.2 mg·L-1 NAA处理;F.1.0 mg·L-1 6-BA和0.3 mg·L-1 NAA处理;G.1.5 mg·L-1 6-BA和0.1 mg·L-1 NAA处理;H.1.5 mg·L-1 6-BA和0.2 mg·L-1 NAA处理;I.1.5 mg·L-1 6-BA和0.3 mg·L-1 NAA处理。
表6
不同质量浓度激素处理对岩生鼠尾草不定芽生根的影响
编号 Number | IBA/ (mg·L-1) | NAA/ (mg·L-1) | 生根率 Rooting rate/% | 生长情况 Growth condition |
---|---|---|---|---|
1 | 0.1 | — | 82.22±0.55d | 叶片发黄,根系杂乱 The leaves were yellow,and the roots were disorganized |
2 | 0.5 | — | 96.11±0.56b | 叶片舒展,根系分明 The leaves were spread out,and the roots were distinct and clear |
3 | 1.0 | — | 90.64±0.32c | 叶片较小,根系细弱 The leaves were small,and the roots were delicate and weak |
4 | — | 0.1 | 80.89±0.49d | 叶片舒展,根系分明 The leaves were spread out,and the roots were distinct and clear |
5 | — | 0.5 | 92.33±0.51c | 叶片卷曲,根系细长 The leaves were curled,and the roots were slender and long |
6 | — | 1.0 | 99.11±0.49a | 叶片舒展,根系分明 The leaves were spread out,and the roots were distinct and clear |
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