Effects of Exogenous Phytohormones on Heat Tolerance of Epipremnum aureum Under Hydroponic Culture

doi:10.19586/j.2095-2341.2023.0083

Current Biotechnology ›› 2023, Vol. 13 ›› Issue (5): 742-747.DOI: 10.19586/j.2095-2341.2023.0083

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Effects of Exogenous Phytohormones on Heat Tolerance of Epipremnum aureum Under Hydroponic Culture

Zhonghui CHEN(), Jinghong LI()

Hubei Key Laboratory of Purification and Application of Plant Anti-cancer Ingredients，School of Chemistry and Life Science，Hubei University of Education，Wuhan 430205，China

Received:2023-06-13 Accepted:2023-08-02 Online:2023-09-25 Published:2023-10-10
Contact: Jinghong LI

外源植物激素对高温胁迫下水培绿萝耐热性的影响

陈中惠(), 李景蕻()

湖北第二师范学院化学与生命科学学院，植物抗癌活性物质提纯与应用湖北省重点实验室，武汉 430205

通讯作者: 李景蕻
作者简介:陈中惠 E-mail: 1481832890@qq.com；
基金资助:
湖北省自然科学基金项目(2017CFC820)

Abstract

Abstract:

In the summer， high temperature stress susceptible to Epipremnum aureum， causing stunted plant growth. The effects of different concentrations of abscisic acid， paclobutrazol and uniconazole on hydroponic Epipremnum aureum heat resistance were studied in this research. The results showed that， under high temperature stress at 35 ℃， exogenous plant hormones could improve the heat resistance of Epipremnum aureum to a certain extent， and the treatment of 2.5 mg·L^-1 abscisic acid and 2.0 mg·L^-1 uniconazole had the best effects. The results indicated that in high temperature areas or seasons， a certain concentration of plant hormones can be used to improve the heat resistance of Epipremnum aureum and ensure their long-lasting ornamental value. This study provided theoretical and practical guidance on how to improve the stress resistance of hydroponic Epipremnum aureum.

Key words: Epipremnum aureum, high temperature stress, heat resistance, abscisic acid, uniconazole, paclobutrazol

摘要：

绿萝在夏季容易受到高温胁迫，造成植物生长发育不良。以水培绿萝为研究对象，探究不同浓度脱落酸、多效唑和烯效唑对其耐热性的影响。结果发现，在35 ℃高温胁迫下，施用外源植物激素均能在一定程度上提高绿萝的耐热性，且2.5 mg·L^-1脱落酸和2.0 mg·L^-1烯效唑处理效果最好。结果表明，在高温地区或高温季节，可使用一定浓度的植物激素来提高绿萝的耐热性以保证持久的观赏价值，这为提高水培绿萝的抗逆性提供了一定的理论和实际指导。

关键词: 绿萝, 高温胁迫, 耐热性, 脱落酸, 烯效唑, 多效唑

CLC Number:

Q949.93

Zhonghui CHEN, Jinghong LI. Effects of Exogenous Phytohormones on Heat Tolerance of Epipremnum aureum Under Hydroponic Culture[J]. Current Biotechnology, 2023, 13(5): 742-747.

陈中惠, 李景蕻. 外源植物激素对高温胁迫下水培绿萝耐热性的影响[J]. 生物技术进展, 2023, 13(5): 742-747.

Figures/Tables 6

References 30

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元素	化合物名称	分子量	浓度/(mg·L^-1)
大量元素	Ca(NO₃)₂·4H₂O	236.16	945
	KNO₃	101.11	506
	(NH₄)₃PO₄·3H₂O	203.13	80
	KH₂PO₄	136.09	136
	MgSO₄·7H₂O	246.47	493
微量元素	KI	166.01	0.83
	H₃BO₃	61.83	6.2
	MnSO₄·H₂O	223.01	22.3
	ZnSO₄·7H₂O	287.54	8.6
	Na₂MoO₄·2H₂O	241.95	0.25
	CuSO₄·5H₂O	249.68	0.025
	CoCl₂·6H₂O	237.93	0.025
铁盐	FeSO₄·7H₂O	278.03	5.56
铁盐	Na₂-EDTA	372.25	7.46

元素	化合物名称	分子量	浓度/(mg·L^-1)
大量元素	Ca(NO₃)₂·4H₂O	236.16	945
	KNO₃	101.11	506
	(NH₄)₃PO₄·3H₂O	203.13	80
	KH₂PO₄	136.09	136
	MgSO₄·7H₂O	246.47	493
微量元素	KI	166.01	0.83
	H₃BO₃	61.83	6.2
	MnSO₄·H₂O	223.01	22.3
	ZnSO₄·7H₂O	287.54	8.6
	Na₂MoO₄·2H₂O	241.95	0.25
	CuSO₄·5H₂O	249.68	0.025
	CoCl₂·6H₂O	237.93	0.025
铁盐	FeSO₄·7H₂O	278.03	5.56
铁盐	Na₂-EDTA	372.25	7.46

激素	激素代号	激素浓度/(mg·L^-1)
脱落酸	A1	0.5
	A2	1.5
	A3	2.5
烯效唑	B1	0.5
	B2	2.0
	B3	8.0
多效唑	C1	0.5
	C2	2.0
	C3	8.0
35 ℃下对照	CK1	0
25 ℃下对照	CK2	0

激素	激素代号	激素浓度/(mg·L^-1)
脱落酸	A1	0.5
	A2	1.5
	A3	2.5
烯效唑	B1	0.5
	B2	2.0
	B3	8.0
多效唑	C1	0.5
	C2	2.0
	C3	8.0
35 ℃下对照	CK1	0
25 ℃下对照	CK2	0

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Effects of Exogenous Phytohormones on Heat Tolerance of Epipremnum aureum Under Hydroponic Culture

外源植物激素对高温胁迫下水培绿萝耐热性的影响

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