文献类型: 外文期刊
作者: Chang, S. 1 ; Shu, H. 1 ;
作者机构: 1.Chinese Acad Trop Agr Sci, Haikou Expt Stn, Haikou, Peoples R China
2.Key Lab Hainan Banana Genet & Breeding, Haikou, Peoples R China
3.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Danzhou, Peoples R China
关键词: Banana;browning;embryogenic callus;embryo genic cell suspension
期刊名称:RESEARCH JOURNAL OF BIOTECHNOLOGY ( 影响因子:0.233; 五年影响因子:0.252 )
ISSN: 0973-6263
年卷期: 2013 年 8 卷 4 期
页码:
收录情况: SCI
摘要: Establishing a stable and homogeneous embryogenic cell suspension (ECS) is the prerequisite for biotechnological breeding of banana. Inducing embryogenic callus is the key step for establishing an ECS. But explants were often browning and necrotic when they were induced that decreased the possibility for getting ECS and much more labor has to be paid. In this paper, we found that browning rate of flowers cultured on 1/2 MS or 1/3 MS was lower than that of those cultured on MS basal medium. Neither activated charcoal nor pH had significant effects on decreasing flowers' browning. Flowers cultured on medium containing DTT or Na2S2O3 did not show clear superiority to those cultured on control medium. Ascorbic acid combined with 1/2 MS or 1/3 MS had much better effects than other media in controlling flowers' browning. No flowers cultured on these two media were browning and necrotic after being cultured one month. But if the dose of ascorbic acid was higher than 50 mg/L, the flowers developed slower than control. 30 mg/L of ascorbic acid was the descent concentration.
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