黑核桃组培中消毒及防止褐化最适浓度分析

doi:10.6048/j.issn.1001-4330.2023.06.024

新疆农业科学 ›› 2023, Vol. 60 ›› Issue (6): 1499-1505.DOI: 10.6048/j.issn.1001-4330.2023.06.024

• 微生物·园艺特产·贮藏保鲜加工 • 上一篇下一篇

黑核桃组培中消毒及防止褐化最适浓度分析

付强¹(), 王琴², 徐彩芹³, 牛俊丽³, 牛建新¹, 王建友³()

1.石河子大学农学院,新疆石河子 832003
2.新疆林业科学院经济林研究所,乌鲁木齐 830063
3.新疆林业科学院,乌鲁木齐 830063

收稿日期:2022-10-19 出版日期:2023-06-20 发布日期:2023-06-20
通信作者: 王建友(1964-),男,甘肃兰州人,研究员,硕士生导师,研究方向为经济林,(E-mail) almonds@126.com
作者简介:付强(1997-),男,内蒙古人,硕士研究生,研究方向为果树栽培生理,(E-mail)fuqiang9777@126.com
基金资助:
中央财政林业科技推广示范项目(新[2018]TG17)

Study on disinfection and prevention of browning in tissue culture of black walnut

FU Qiang¹(), WANG Qin², XU Caiqin³, NIU Junli³, NIU Jianxin¹, WANG Jianyou³()

1. College of Agronomy, Shihezi University, Shihezi Xinjiang 832003, China
2. Institute of Economic Forestry, Xinjiang Academy of Forestry, Urumqi 830063, China
3. Xinjiang Academy of Forestry, Urumqi 830063, China

Received:2022-10-19 Online:2023-06-20 Published:2023-06-20
Correspondence author: WANG Jianyou(1964-), male,researcher,Master's Supervisor,research direction:economic forest, (E-mail) almonds@126.com
Supported by:
The Demonstration Project of Forestry Science and Technology Promotion Sponsored by Ministry of Finance of P. R. China(新[2018]TG17)

摘要/Abstract

摘要：

【目的】筛选出消毒的最佳时间和抗褐化剂的最适浓度,研究外植体细胞结构在褐化过程中的变化,为黑核桃的组培研究和工厂化育苗提供理论基础。【方法】采用不同时长对黑核桃叶片和茎段进行消毒处理,观察其对污染率、褐化率的影响;以AC、PVP、VC 3种抗褐化剂进行正交试验,研究其对黑核桃茎段褐化率和萌发率的影响;观察褐化外植体徒手切片。【结果】 (1)叶片以0.1%HgCl₂消毒5 min,污染率和褐化率最低;(2)茎段以二次消毒法,0.1%HgCl₂加吐温80消毒5 min,污染率和褐化率最低;(3)以AC 2 g/L、PVP 110 mg/L、VC 100 mg/L处理的褐化率最低;以AC 1 g/L、PVP 70 mg/L、VC 50 mg/L处理的萌发率最高。【结论】叶片以0.1%HgCl₂消毒5min为最佳消毒时间;茎段以二次消毒法,0.1%HgCl₂加吐温80消毒5 min为最佳消毒时间;最适的抗褐化剂浓度配比为AC1g/L、PVP 110 mg/L、VC100 mg/L。

关键词: 黑核桃; 组织培养; 褐化; 污染; 幼嫩茎段

Abstract:

【Objective】 The optimal time for disinfection and the optimal concentration of anti-browning agent were screened out, and the changes in the cell structure of the explants during the browning process will be discussed in the hope of providing theoretical basis for tissue culture research and industrial seedling of black walnut.【Methods】 The leaves and stems of black walnut were disinfected with different lengths of time to observe their effects on the pollution rate and browning rate. Three anti-browning agents, including AC, PVP and VC, were used in orthogonal experiments to study their effects on the browning rate and germination rate of black walnut stems. After that, freehand section of the browned explants was observed.【Results】 (1) When leaves were disinfected with 0.1%HgCl₂ for 5 min, the contamination rate and browning rate were the lowest. (2) When the stem segment was disinfected with 0.1%HgCl₂ and tween 80 for 5 min, the contamination rate and browning rate were the lowest by the two-step sterilization. (3) Treatment with AC 2 g/L, PVP 110 mg/L, VC 100 mg/L had the lowest browning rate and the germination rate of AC 1 g/L, PVP 70 mg/L and VC 50 mg/L was the highest.【Conclusion】 The best disinfection time is to disinfect the leaves with 0.1%HgCl₂ for 5 minutes. The best disinfection time is to disinfect the stem segment with 0.1%HgCl₂ plus tween 80 for 5 min by the two-step sterilization. The most suitable anti-browning agent concentration ratio is AC 1 g/L, PVP 110 mg/L, VC 100 mg/L.

Key words: black walnut; tissue culture; browning; pollution; young stem

中图分类号:

S664.1

付强, 王琴, 徐彩芹, 牛俊丽, 牛建新, 王建友. 黑核桃组培中消毒及防止褐化最适浓度分析[J]. 新疆农业科学, 2023, 60(6): 1499-1505.

FU Qiang, WANG Qin, XU Caiqin, NIU Junli, NIU Jianxin, WANG Jianyou. Study on disinfection and prevention of browning in tissue culture of black walnut[J]. Xinjiang Agricultural Sciences, 2023, 60(6): 1499-1505.

图/表 7

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水平 Levels	抗褐化剂 Anti browning agent
水平 Levels	AC (g/L)	PVP (mg/L)	VC (mg/L)
1	1	70	50
2	1.5	90	100
3	2	110	150

水平 Levels	抗褐化剂 Anti browning agent
水平 Levels	AC (g/L)	PVP (mg/L)	VC (mg/L)
1	1	70	50
2	1.5	90	100
3	2	110	150

处理 Treatment	消毒试剂 Disinfection reagent	消毒时长 Disinfection time (min)	污染率 Pollution rate (%)	褐化率 Browning rate (%)
A₁	0.1%HgCl₂	4	22.22^a	13.89^b
A₂	0.1%HgCl₂	5	11.76^ab	14.71^b
A₃	0.1%HgCl₂	6	11.43^ab	25.71^ab
A₄	0.1%HgCl₂	7	8.11^b	37.84^a

处理 Treatment	消毒试剂 Disinfection reagent	消毒时长 Disinfection time (min)	污染率 Pollution rate (%)	褐化率 Browning rate (%)
A₁	0.1%HgCl₂	4	22.22^a	13.89^b
A₂	0.1%HgCl₂	5	11.76^ab	14.71^b
A₃	0.1%HgCl₂	6	11.43^ab	25.71^ab
A₄	0.1%HgCl₂	7	8.11^b	37.84^a

处理 Treatment	消毒时间 Disinfection time (min)	消毒次数 Disinfection times	污染率 Pollution rate (%)	褐化率 Browning rate (%)
B₁	8	单次	48.48^a	24.24^c
B₂	10	单次	33.33^b	45.45^b
B₃	12	单次	14.29^c	57.14^a
B₄	4	二次	47.22^a	11.11^d
B₅	5	二次	29.41^b	17.65^cd
B₆	6	二次	20.59^c	26.67^c

黑核桃组培中消毒及防止褐化最适浓度分析

Study on disinfection and prevention of browning in tissue culture of black walnut

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图/表 7

参考文献 27

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Metrics

项目 Items		抗褐化剂Anti browning agent			影响主次 Influence order	最优方案 Optimal scheme
项目 Items		AC(g/L)	PVP(mg/L)	VC(mg/L)	影响主次 Influence order	最优方案 Optimal scheme
褐化率 Browning rate	K₁	96.7	130	121.7	AC>VC >PVP	AC 1 g/L、 PVP 110 mg/L、 VC 100 mg/L
	K₂	156.7	116..7	101.7
	K₃	100	106.7	129.9
	k₁	32.2	43.3	40.6
	k₂	52.2	38.9	33.9
	k₃	33.3	35.6	43.3
	R	20	7.8	9.4
萌发率 Germination rate	K₁	125.0	115.0	115.0	AC>PVP >VC	AC 1 g/L、 PVP 190 mg/L、 VC 50 mg/L
	K₂	101.7	116.7	101.7
	K₃	101.7	96.7	111.7
	k₁	41.7	38.3	38.3
	k₂	33.9	38.9	33.9
	k₃	33.9	32.2	37.2
	R	7.8	6.7	4.4

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