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Data on recurrent somatic embryogenesis and in vitro micropropagation of Cnidium officinale Makino.

ABSTRACT: Cnidium officinale Makino, a perennial herb of the family Umbelliferae, is a well-known medicinal plant in oriental medicine with antidiabetic, tumor metastatic, antiplatelet, antimicrobial and insecticidal properties. Hence, C. officinale does not produce seed the plant tissue culture is the viable alternative for its propagation. Node explant from in vitro grown C. officinale Makino was cultured on MS medium supplemented with plant growth regulators (PGRs) like 2,4-Dichlorophenoxyacetic acid (2,4-D) or/and 6-Benzylaminopurine (BA). It was aimed to investigate the optimal concentration and combination of 2,4-D and BA for somatic embryogenesis in node explant of C. officinale Makino. The embryogenic callus was induced on node explant after four weeks in MS medium containing 1.5?mg?L-1 2,4-D and 0.5?mg?L-1 BA. The translucent white, embryogenic callus was subcultured on the respective medium and individual well-structured somatic embryos were observed. Heart and cotyledon stage embryos were pictured under a stereomicroscope. The individual somatic embryos (SE) were transferred to MS medium without PGRs (MS0) and 100% germination was observed. Repeated subculturing of the embryogenic callus for five months resulted in recurrent somatic embryogenesis but with a gradual decline in number.

SUBMITTER: Adil M

PROVIDER: S-EPMC6141485 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Data on recurrent somatic embryogenesis and in vitro micropropagation of Cnidium officinale Makino.

Adil Muhammad M Kang Dong Il DI Jeong Byoung Ryong BR

Data in brief 20180711

Cnidium officinale Makino, a perennial herb of the family Umbelliferae, is a well-known medicinal plant in oriental medicine with antidiabetic, tumor metastatic, antiplatelet, antimicrobial and insecticidal properties. Hence, C. officinale does not produce seed the plant tissue culture is the viable alternative for its propagation. Node explant from in vitro grown C. officinale Makino was cultured on MS medium supplemented with plant growth regulators (PGRs) like 2,4-Dichlor ...[more]

PMID: 30229105

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Project description:A dual in vitro regeneration system consisting of indirect organogenesis and somatic embryogenesis (SE), applicable to several varieties of tomato-Solanum lycopersicum (cv. Riogrande, cv. Roma, hybrid 17905 and model cv. M82) has been established. This system is both improved and highly reproducible compared to current methods. Callus initiation, plant regeneration and SE was developed for one-week-old cotyledon explants. Indirect organogenesis via callus induction (CI) was developed for all four varieties of tomato used in this study. One-week-old tomato seedlings were used as a source of cotyledon and hypocotyl segments as explants. The explants were subsequently cultured on Murashige and Skoog (MS) medium supplemented with different combination and concentrations of plant growth regulators (PGRs). Substantial trends in regeneration and propagation response were observed among the varieties and treatments. For commercial varieties cvs. Riogrande and Roma, maximum CI was observed at 2 weeks in CIMT9 (0.5 mg/L NAA, 1 mg/L BAP) and CIMT12 (2 mg/L IAA, 2 mg/L NAA, 2 mg/L BAP, 4 mg/L KIN). However, cv. M82 responded after 4 weeks to a combination of treatments CIMT9 (0.5 mg/L NAA + 1 mg/L BAP) and CIMT13 (2 mg/L IAA + 2 mg/L NAA + 2 mg/L BAP + 4 mg/L ZEA) for the production of calli. Subsequent shoot and root organogenesis were optimized for all four varieties. Cv. Riogrande, exhibited fastidious in vitro regeneration potential and selected for induction of somatic embryos via SE involving novel structure: rhizoid tubers (RTBs). Numerous fine hair like rhizoids (~23/explants) were first developed from cotyledon and hypocotyl explants cultured on MS medium supplemented with 0.5 or 2 mg/L NAA at pH 4.0 in dark conditions. Further incubation of each rhizoid under light conditions on MS media supplemented with 5 mg/L TDZ or BAP at pH 4.0 led to the formation of a novel structure-rhizoid Tubers (RTBs). Thus, as evident from histology, SE in Riogrande tomato species requires a medium with pH of (4.0) and higher concentration of cytokinins (BAP/TDZ) to form on average 40-45 RTBs from both explants. Histological and morphological studies revealed that RTBs develop through different stages of embryogenesis to multiple plantlets, on MS medium with 5 mg/L TDZ/BAP at normal pH (5.8). The results obtained indicated that the induced somatic embryos of tomato with lower pH are a more efficient mode of propagation than the organogenesis with or without callus formation. The RTBs led to a complete plantlets regeneration in 45 days compared to indirect organogenesis at 60 days.

Project description:Ginger (Zingiber officinale Rosc) (Zingiberaceae) is a livelihood and commercial crop in Ethiopia. But, the availability of clean and healthy planting materials has become a problem due to wilt disease, caused by Ralstonia solanacearum Biovar 3 Race 4. This problem obliged growers to seek for tens of millions of vigorous and disease-free planting materials very quickly via in vitro micropropagation of shoot tip explants. For this purpose, protocols of sterilizing shoot tip explants and controlling bacterial contamination of one Ethiopian ginger cultivar called Deribo were tested. Hence, this article reports the finding of a study that aimed at testing the (a) effectiveness of three sterilization agents, namely, 0.25%?w/v RBK (composed of ridomile, bayleton, and kocide at 1?:?1?:?1 ratio), 0.50%?v/v NaOCl, and 70%?v/v ethanol at three different treatment times in combination with 0.25% HgCl2; (b) efficacy of four broad-spectrum antibiotics and their combinations in controlling bacterial contaminants of ginger shoot tip explants and in vitro micropropagation media; and (c) effects of the antibiotics on the shooting performances of the explants of the cultivar. A 0.50%?v/v NaOCl at exposure time of 20?min followed by 0.25% HgCl2 has resulted in 80% contamination-free and 70% live explants after three weeks of incubation. Likewise, cefotaxime at 50, 100, and 200?mg/L and cefotaxime plus streptomycin at 25, 50, and 100?mg/L yielded 87 to 93% contamination-free microshoots after three weeks of culturing. The number of explants killed by the antibiotics increased with increasing the concentration of the antibiotics. Cefotaxime at 50?mg/L and cefotaxime plus streptomycin at 25?mg/L yielded significantly highest mean microshoots per explant (7.10?±?0.36 and 7.51?±?0.27, respectively) and mean shoot length (4.2?±?0.26 and 3.56?±?0.17?cm, respectively). Some of the microshoots showed some yellowing. But, they turned green and grew normal after subcultured into fresh, antibiotics-free culture media. These findings are important foundations towards developing more optimized protocols of sterilizing explants and controlling bacterial contaminants for large-scale in vitro micropropagation of the Deribo ginger cultivar.

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Data on recurrent somatic embryogenesis and in vitro micropropagation of Cnidium officinale Makino.

Publications

Data on recurrent somatic embryogenesis and <i>in vitro</i> micropropagation of <i>Cnidium officinale</i> Makino.

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