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The regeneration of Acer rubrum L. "October Glory" through embryonic callus.
BMC Plant Biology ( IF 5.3 ) Pub Date : 2020-07-02 , DOI: 10.1186/s12870-020-02496-z
Chong-Wen Dai 1 , Yang-Yang Yan 2 , Yu-Min Liu 1 , Ya-Min Liu 1 , Yuan-Wei Deng 1 , Hong-Yu Yao 1
Affiliation  

Tissue culture and rapid propagation technology is an important way to solve the difficulties of plant propagation. This experiment aims to explore the appropriate conditions at each stage of the red maple’s tissue culture process and to obtain plantlets, thus providing a theoretical basis for the establishment of the red maple’s tissue culture system. The results showed that the stem segment is the most suitable explant for inducing embryogenic callus. The MS (Murashige&Skoog) + 0.8 mg/L TDZ (Thidiazuron) + 1.0 mg/L 6-BA (6-Benzylaminopurine) + 0.5 mg/L IAA(Indole-3-acetic acid) + 35 g/L sucrose+ 7.5 g/L semi-fixed medium was the best for callus formation. When selecting type VI callus as embryonic callus induction material, MS + 0.6 mg/L TDZ + 0.5 mg/L 6-BA + 2.0 mg/L IAA + 35 g/L sucrose+ 7.5 g/L semi-fixed medium can get embryonic callus. The optimal medium for adventitious bud induction is MS + 1.0 mg/L TDZ + 3.0 mg/L 6-BA+ 0.2 mg/L NAA (1-Naphthaleneacetic acid) + 1.2 mg/L IAA + 35 g/L sucrose+ 7.5 g/L semi-fixed medium. The induction rate of adventitious roots in MS + 0.6 mg/L TDZ + 1.0 mg/L 6-BA+ 3 mg/L NAA + 35 g/L sucrose+ 7.5 g/L semi-fixed medium was the highest, reaching 76%. In the course of our research, we found that PGRs play an important role in the callus induction stage, and the effect of TDZ is particularly obvious; The callus cells grow and proliferate according to the “S” growth curve, and can be sub-cultured when the highest growth point is reached to maintain the rapid proliferation of the callus cells and to avoid inactivation of callus caused by tight niche.

中文翻译:

通过胚愈伤组织再生红槭“十月的荣耀”。

组织培养和快速繁殖技术是解决植物繁殖困难的重要途径。本实验旨在探索红枫组织培养过程各个阶段的适宜条件,并获得小植株,从而为红枫组织培养体系的建立提供理论依据。结果表明,茎段是最适合诱导胚性愈伤组织的外植体。MS(Murashige&Skoog)+ 0.8 mg / L TDZ(噻二唑)+ 1.0 mg / L 6-BA(6-苄基氨基嘌呤)+ 0.5 mg / L IAA(吲哚-3-乙酸)+ 35 g / L蔗糖+ 7.5 g / L半固定培养基最适合形成愈伤组织。当选择类型VI愈伤胚胎愈伤组织诱导材料,MS + 0.6毫克/ L TDZ + 0.5 mg / L的6-BA + 2.0毫克/ L IAA +为35g / L蔗糖+ 7.5g / L的半固定介质可以得到胚性愈伤组织。不定芽诱导的最佳培养基是MS + 1.0 mg / L TDZ + 3.0 mg / L 6-BA + 0.2 mg / L NAA(1-萘乙酸)+ 1.2 mg / L IAA + 35 g / L蔗糖+ 7.5 g / L半固定培养基。MS + 0.6 mg / L TDZ + 1.0 mg / L 6-BA + 3 mg / L NAA + 35 g / L蔗糖+ 7.5 g / L半固定培养基的不定根诱导率最高,达到76%。在研究过程中,我们发现PGRs在愈伤组织诱导阶段起着重要作用,而TDZ的作用尤为明显。愈伤组织细胞根据“ S”生长曲线生长和增殖,并且可以在达到最高生长点时进行继代培养,以维持愈伤组织细胞的快速增殖并避免由紧密的利基引起的愈伤组织失活。2 mg / L NAA(1-萘乙酸)+ 1.2 mg / L IAA + 35 g / L蔗糖+ 7.5 g / L半固定培养基。MS + 0.6 mg / L TDZ + 1.0 mg / L 6-BA + 3 mg / L NAA + 35 g / L蔗糖+ 7.5 g / L半固定培养基的不定根诱导率最高,达到76%。在研究过程中,我们发现PGRs在愈伤组织诱导阶段起着重要作用,而TDZ的作用尤为明显。愈伤组织细胞根据“ S”生长曲线生长和增殖,并且可以在达到最高生长点时进行继代培养,以维持愈伤组织细胞的快速增殖并避免由紧密的利基引起的愈伤组织失活。2 mg / L NAA(1-萘乙酸)+ 1.2 mg / L IAA + 35 g / L蔗糖+ 7.5 g / L半固定培养基。MS + 0.6 mg / L TDZ + 1.0 mg / L 6-BA + 3 mg / L NAA + 35 g / L蔗糖+ 7.5 g / L半固定培养基的不定根诱导率最高,达到76%。在研究过程中,我们发现PGRs在愈伤组织诱导阶段起着重要作用,而TDZ的作用尤为明显。愈伤组织细胞根据“ S”生长曲线生长和增殖,并且可以在达到最高生长点时进行继代培养,以维持愈伤组织细胞的快速增殖并避免由紧密的利基引起的愈伤组织失活。5 g / L半固定培养基最高,达到76%。在研究过程中,我们发现PGRs在愈伤组织诱导阶段起着重要作用,而TDZ的作用尤为明显。愈伤组织细胞根据“ S”生长曲线生长和增殖,并且可以在达到最高生长点时进行继代培养,以维持愈伤组织细胞的快速增殖并避免由紧密的利基引起的愈伤组织失活。5 g / L半固定培养基最高,达到76%。在研究过程中,我们发现PGRs在愈伤组织诱导阶段起着重要作用,而TDZ的作用尤为明显。愈伤组织细胞根据“ S”生长曲线生长和增殖,并且可以在达到最高生长点时进行继代培养,以维持愈伤组织细胞的快速增殖并避免由紧密的利基引起的愈伤组织失活。
更新日期:2020-07-02
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