In vitro Culture of Endemic Astragalus gymnolobus Fischer and Comparison of its Antibacterial, Antioxidant, and Phenolic Profiles with Field Grown Plants
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JASTMO-22-3_017
تاریخ نمایه سازی: 23 آبان 1402
Abstract:
Astragalus gymnolobus Fischer (Leguminosae family) is an endemic plant to Turkey. Firstly, an in vitro regeneration system was achieved using leaf and petiole explants on Murashige and Skoog (MS) medium supplemented with different cytokinins [Thidiazuron (TDZ), Kinetin (KIN), Benzyladenine (BA)], auxins [Indole-۳-Butyric Acid (IBA), Indole-۳-Acetic Acid (IAA), ۲,۴-Dichlorophenoxyacetic acid (۲,۴-D) and Naphthalene Acetic Acid (NAA)] and Gibberellic Acid (GA۳) at diverse concentrations. Best shoot formation was obtained with leaf explants and only TDZ alone or TDZ and IAA combinations were effective for shoot forming. The best shoot inducing response (۱۷.۶۰ shoots per explant at ۲۳.۸۱% shoot frequency) was recorded at ۰.۵ mg L-۱ TDZ alone. Among the TDZ stand-alone treatments, ۰.۰۵ and ۰.۱ mg L-۱ TDZ were also effective in terms of shoot induction frequency (۳۱.۸۲ and ۳۰.۴۳%, respectively). Root formation was obtained after ۳ months (۳.۵ roots per shoot with ۷۷.۸% root frequency) only in auxin free MS medium (control) when regenerated shoots were cut off ۰.۵-۱ cm from the base to exclude the callus part. This study also aimed to determine and compare the antibacterial and antioxidant properties and phenolic composition of in vitro-regenerated and field-grown A. gymnolobus. The results revealed that field-grown leaves generally showed higher biological activities and had higher amounts of phenolic compounds. Furthermore, A. gymnolobus leaves were noteworthy sources of rutin. This initial in vitro culture protocol for endemic A. gymnolobus is valuable for genetic resources conservation and can be used in stress application studies to increase the level of phenolic substances in in vitro-grown plants.
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Authors
A. Yildirim
Department of Field Crops, Faculty of Agricultural and Environmental Science, Bolu Abant Izzet Baysal University, Bolu, Turkey.
E. Uyar
Department of Biology, Faculty of Science and Art, Bolu Abant Izzet Baysal University, Bolu, Turkey.
A. Turker
Department of Biology, Faculty of Science and Art, Bolu Abant Izzet Baysal University, Bolu, Turkey.
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