Cultivation of Sesamum indicum L. Callus Cells at 35.DEG.C..

Takebayashi, K.; Mimura, Akio; Ichikawa, Akira; Niwano, Mitsuru; Takahara, Yoshimasa; Osawa, Tosihiko

doi:10.5511/plantbiotechnology1984.11.129

Cited by 4 publications

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“…Sesamol, sesaminol and sesamolinol were not detectable in callus [225,226]. The lack of sesamol in callus cultures was confirmed in an independent study [230]. Hairy root cultures produced sesamin but no other lignans [231].…”

Section: Lignans In Other Tissues and Organs Of Sesamum Indicummentioning

confidence: 96%

Lignans of Sesame (Sesamum indicum L.): A Comprehensive Review

et al. 2021

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Major lignans of sesame sesamin and sesamolin are benzodioxol--substituted furofurans. Sesamol, sesaminol, its epimers, and episesamin are transformation products found in processed products. Synthetic routes to all lignans are known but only sesamol is synthesized industrially. Biosynthesis of furofuran lignans begins with the dimerization of coniferyl alcohol, followed by the formation of dioxoles, oxidation, and glycosylation. Most genes of the lignan pathway in sesame have been identified but the inheritance of lignan content is poorly understood. Health-promoting properties make lignans attractive components of functional food. Lignans enhance the efficiency of insecticides and possess antifeedant activity, but their biological function in plants remains hypothetical. In this work, extensive literature including historical texts is reviewed, controversial issues are critically examined, and errors perpetuated in literature are corrected. The following aspects are covered: chemical properties and transformations of lignans; analysis, purification, and total synthesis; occurrence in Seseamum indicum and related plants; biosynthesis and genetics; biological activities; health-promoting properties; and biological functions. Finally, the improvement of lignan content in sesame seeds by breeding and biotechnology and the potential of hairy roots for manufacturing lignans in vitro are outlined.

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Section: Lignans In Other Tissues and Organs Of Sesamum Indicummentioning

confidence: 96%

Lignans of Sesame (Sesamum indicum L.): A Comprehensive Review

et al. 2021

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Sesame: Overcoming the Abiotic Stresses in the Queen of Oilseed Crops

Singh

Kumar

Bhardwaj

et al. 2012

Improving Crop Resistance to Abiotic Stress

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Anionic peroxidase production byArnebia euchromacallus

Farhadi¹,

Haghbeen²,

Marefatjo³

et al. 2011

Biotech and App Biochem

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Arnebia euchroma callus, obtained from the root cell culture of an Iranian native specimen, has gained a doubling time of 63 H after regular subculturing on Linsmaier-Skoog (LS) medium containing sugar (50 g/L), 2,4-dichlorophenoxyacetic acid (10(-6) M), and kinetin (10(-5) M) under darkness at 25°C. Despite the observed somaclonal variations, peroxidase production by the A. euchroma calli has been stable over 4 years under the aforementioned conditions. Isoelectric focusing experiments revealed that the partially purified A. euchroma peroxidases (AePoxs) are mainly anionic with pI values of about 5.5 and 6.6. AePox reaches its optimal activity at 55°C and pH 7.5. Results of the various kinetic studies suggest that AePox belongs to the type III plant peroxidases with no activity for the oxidation of 3-indoleacetic acid, but seems to play a role in the lignin biosynthesis and H(2) O(2) regulation during the proliferation of the A. euchroma cells on LS medium. Comparing the biochemical properties of AePox with horseradish peroxidase and in view of the ease of solid cell culture, the A. euchroma callus could be considered as a source of plant peroxidase for some biotechnological applications.

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Cultivation of Sesamum indicum L. Callus Cells at 35.DEG.C..

Abstract: We induced sesame callus from segmens of seedlings. The growth rate was greatly influenced by the incubation temperature. Sesame callus grew most rapidly at 35C, with the shortest doubling time of 1.1 days(u max= 0.63). The sesame cell extracts showed antioxidative activity.

Cited by 4 publications

References 0 publications

Lignans of Sesame (Sesamum indicum L.): A Comprehensive Review

Lignans of Sesame (Sesamum indicum L.): A Comprehensive Review

Sesame: Overcoming the Abiotic Stresses in the Queen of Oilseed Crops

Anionic peroxidase production byArnebia euchromacallus

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