Grain barley starch as a gelling agent of nutrient media for cultivation of anthers and isolated embryos of H. vulgare L.

  • O. V. Bilynska
DOI: https://doi.org/10.7124/FEEO.v26.1260

Abstract

Aim. Determination the possibility of agar replacement with normal and waxy type starches produced from barley seeds in the nutrient media for spring barley haploid production. Methods. Anthers of spring barley line DH00-126 were inoculated on inductive media containing N6 macro-, MS micronutrients, organic supplements, maltose (9.0 %) and differed in solidifying agents (agar, starch from barley seeds or chemically modified starch D5a-1). Trophic capacities of barley starch were determined both in anther and embryo culture of barley. Results. It was determined that barley starch of waxy type was not suitable for solidifying of nutrient medium. Use of normal type barley starch (6.5 %) resulted in sufficient decrease in the frequency of green plant regeneration. At the same time, this modification had no effect on the number of morphogenic anthers. Barley starch was inferior to pea starch in the ability to support seedling growth in embryo culture in vitro. Conclusions. Barley starch of normal type has worse trophic capacities in comparison to pea starch in embryo culture. It was appeared barley starch to be a less suitable gelling agent of medium for spring barley haploid production in anther culture in vitro than agar and chemically modified starch D5a-1.

Keywords: Hordeum vulgare L., anther culture in vitro, embryo culture in vitro, agar, barley starch.

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