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  • Title: Somatic embryogenesis and plant regeneration in inflorescence and seed derived callus cultures of Poa pratensis L. (Kentucky bluegrass).
    Author: van der Valk P, Zaal MA, Creemers-Molenaar J.
    Journal: Plant Cell Rep; 1989 Mar; 7(8):644-7. PubMed ID: 24240451.
    Abstract:
    Callus induction and plant regeneration were studied in 15 cultivars of the facultative apomictic species Poa pratensis L. (Kentucky bluegrass).The tissue culture responses of mature seeds and immature inflorescences were compared. Murashige and Skoog's (MS) medium, supplemented with 2 mg/l 2,4-dichlorophenoxyacetic acid (2,4-D) was used for callus induction and maintenance. Plants could be regenerated from compact and friable callus on MS medium devoid of 2,4-D. Plants were recovered from 14 cultivars at a high frequency (up to 79% of the callus cultures) when young inflorescences were used as the explant material and from only 3 cultivars, at a low frequency (up to 3%), with seeds. Somatic embryos were observed in callus cultures of many cultivars. Fully developed germinating somatic embryos were occasionally observed. Plant regeneration appeared to take place both via somatic embryogenesis and organogenesis. Plants were generally green but albino shoots developed at a low frequency from friable callus.
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