Page 163 - 《广西植物》2025年第7期
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7 期 蒋琼海等: 秋石斛遗传转化筛选标记基因及筛选剂的筛选 1 3 5 5
表 1 不同浓度 G418 对胚性愈伤组织生长的影响
Table 1 Effects of different concentrations of G418 on ECs growth
G418 浓度 褐化率
生长状况
Concentration of G418 Browning rate
Growth condition
 ̄1
(mgL ) (%)
50 13.89 ± 0.96 胚性愈伤组织生长良好ꎬ无明显颜色变化ꎬ组织变软
ECs grow wellꎬ without obvious color changesꎬ but the tissue becomes soft
100 46.67 ± 0.96 胚性愈伤组织开始变软呈水渍ꎬ少量胚性愈伤组织呈现褐色
ECs begin to soften and become water ̄stainedꎬ with a small amount of ECs turning brown
200 53.33 ± 2.55 大部分胚性愈伤组织变软呈水渍ꎬ呈现褐色
Most of the ECs become soft and water ̄stainedꎬ appearing brown
300 76.67 ± 1.67 胚性愈伤组织大部分呈现褐色
Most of the ECs appear brown
400 100 ± 0 胚性愈伤组织全部褐化
All ECs have turned brown
注: 平均褐化率±标准误ꎮ
Note: Average browning rate ± s x .
A. 秋石斛‘诺贝尔’在含有不同浓度 G418 分化培养基中的存活率ꎻ B. 原球茎在含有不同浓度 G418 分化培养基中培养 4 周后的
 ̄1
生长状态 a-d 分别表示 G418 浓度为 0、50、100、200 mgL ꎬ比例尺 = 1 cmꎮ
A. The survival rate of Dendrobium ‘Nobile Lindl.’ on differentiation media containing different concentrations of G418ꎻ B. Growth status of the
protocorms after cultured for four weeks on differentiation media containing different concentrations of G418 a - d represent the G418
 ̄1
concentrations of 0ꎬ 50ꎬ 100ꎬ 200 mgL ꎬ respectivelyꎬ bars= 1 cm.
图 6 不同 G418 浓度对原球茎分化的影响
Fig. 6 Effects of different G418 concentrations on protocorm differentiation

