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An Agrobacterium-mediated transformation via organogenesis regeneration of a facultative CAM plant, the common ice plant Mesembryanthemum crystallinum L
Plant Production Science ( IF 1.6 ) Pub Date : 2020-03-01 , DOI: 10.1080/1343943x.2020.1730700
Sakae Agarie 1, 2 , Makiko Umemoto 3 , Haruki Sunagawa 3 , Toyoaki Anai 3 , John C. Cushman 4
Affiliation  

ABSTRACT The common ice plant, Mesembryanthemum crystallinum L. provides a useful model for the study of environmentally induced photosynthetic conversion and abiotic stresses tolerance. However, a procedure for the production of transgenic ice plant, which is essential for functional genomics, has not been fully established. Here we tested the factors on the transformation of cotyledonary nodes excised from the ice plant seedlings such as thidiazuron (TDZ), NaCl and phytosulfokine (PSK), a peptidyl plant growth factor using Agrobacterium tumefaciens strains EHA101 and EHA105 harboring binary vector plasmids pBI7EGFP and pCAMBIA1302, respectively. The established procedure is as follows: the explants (cotyledonary nodes) were co-cultivated with Agrobacterium for 3 days, and the explants were cultured in the medium with 0.5 mg l−1 kinetin and 100 mg l−1 carbenicillin for 72 h, and they were cultured in the medium with 0.5 mg l−1 kinetin and 100 nM PSKfor 4 weeks. Thidiazuron and NaCl enhanced the production of multiple adventitious shoot formation during regeneration but reduced the transformation efficiency due to the vitrification of adventitious shoots. PSK was effective in the production of healthy adventitious shoots. The transformation frequency at the stage of whole plants was 0.6% and 4.6% per inoculated cotyledonary nodes using the Agrobacterium strain EHA101 (pBI7EGFP) and EHA105 (pCAMBIA1302), respectively. Graphical abstract

中文翻译:

通过兼性 CAM 植物(普通冰植物 Mesembryanthemum crystallinum L)的器官发生再生进行农杆菌介导的转化

摘要 常见的冰植物 Mesembryanthemum crystallinum L. 为研究环境诱导的光合转化和非生物胁迫耐受性提供了有用的模型。然而,功能基因组学必不可少的转基因冰植物的生产程序尚未完全建立。在这里,我们使用含有二元载体质粒 pBI71AGFP 和 pCAM 的根癌农杆菌菌株 EHA101 和 EHA105 测试了从冰植物幼苗中切除的子叶节的转化因子,例如噻二唑隆 (TDZ)、NaCl 和植物硫因子 (PSK),一种肽基植物生长因子, 分别。建立的程序如下:外植体(子叶节)与农杆菌共培养3天,外植体在0. 5 mg l-1 激动素和 100 mg l-1 羧苄青霉素 72 小时,它们在含有 0.5 mg l-1 激动素和 100 nM PSK 的培养基中培养 4 周。Thidiazuron 和 NaCl 在再生过程中增加了多个不定枝形成的产生,但由于不定枝的玻璃化而降低了转化效率。PSK 在产生健康的不定芽方面是有效的。使用农杆菌菌株 EHA101 (pBI7EGFP) 和 EHA105 (pCAMBIA1302),在整个植株阶段的转化频率分别为每个接种子叶节的 0.6% 和 4.6%。图形概要 Thidiazuron 和 NaCl 在再生过程中增加了多个不定枝形成的产生,但由于不定枝的玻璃化而降低了转化效率。PSK 在产生健康的不定芽方面是有效的。使用农杆菌菌株 EHA101 (pBI7EGFP) 和 EHA105 (pCAMBIA1302),在整个植株阶段的转化频率分别为每个接种子叶节的 0.6% 和 4.6%。图形概要 Thidiazuron 和 NaCl 在再生过程中增加了多个不定枝形成的产生,但由于不定枝的玻璃化而降低了转化效率。PSK 在产生健康的不定芽方面是有效的。使用农杆菌菌株 EHA101 (pBI7EGFP) 和 EHA105 (pCAMBIA1302),在整个植株阶段的转化频率分别为每个接种子叶节的 0.6% 和 4.6%。图形概要
更新日期:2020-03-01
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