The high frequency of variegated forms after in vitro mutagenesis in Saintpaulia ionantha Wendl.

The leaf-explants of Saintpaulia ionantha Wendl. var.'miniature' were treated by different doses of MNH and cultured on shoot regeneration medium. A strong toxic effect of some MNH doses on explant survival during the first two subcultures was noticed. The explants surviving treatment rege...

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Main Authors: Marek Gaj, Małgorzata D. Gaj
Format: Article
Language:English
Published: Polish Botanical Society 2014-01-01
Series:Acta Societatis Botanicorum Poloniae
Subjects:
Online Access:https://pbsociety.org.pl/journals/index.php/asbp/article/view/953
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author Marek Gaj
Małgorzata D. Gaj
author_facet Marek Gaj
Małgorzata D. Gaj
author_sort Marek Gaj
collection DOAJ
description The leaf-explants of Saintpaulia ionantha Wendl. var.'miniature' were treated by different doses of MNH and cultured on shoot regeneration medium. A strong toxic effect of some MNH doses on explant survival during the first two subcultures was noticed. The explants surviving treatment regenerated shoots with the efficiency comparable to the control. The high number of shoots regenerated from mutagenised leaves showed chlorophyll chimerism (so-called variegated forms). The use of 5 mM MNH for 1.5 or 2 h was found very effective, as 100% of survived explants regenerated variegated shoots. Besides hundreds of variegated forms also leaf-shape and flower-colour variants were observed in MNH-treated culture. Somaclonal variation was not observed in the control culture. The results indicate the great efficiency of in vitro applied MNH for in-duction of morphological variants of Saintpaulia, and especially variegated forms.
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spelling doaj.art-ef98ad9ed99a4041b1c12a00689a913a2022-12-21T19:26:29ZengPolish Botanical SocietyActa Societatis Botanicorum Poloniae2083-94802014-01-01653-433934310.5586/asbp.1996.052726The high frequency of variegated forms after in vitro mutagenesis in Saintpaulia ionantha Wendl.Marek Gaj0Małgorzata D. Gaj1University of SilesiaUniversity of SilesiaThe leaf-explants of Saintpaulia ionantha Wendl. var.'miniature' were treated by different doses of MNH and cultured on shoot regeneration medium. A strong toxic effect of some MNH doses on explant survival during the first two subcultures was noticed. The explants surviving treatment regenerated shoots with the efficiency comparable to the control. The high number of shoots regenerated from mutagenised leaves showed chlorophyll chimerism (so-called variegated forms). The use of 5 mM MNH for 1.5 or 2 h was found very effective, as 100% of survived explants regenerated variegated shoots. Besides hundreds of variegated forms also leaf-shape and flower-colour variants were observed in MNH-treated culture. Somaclonal variation was not observed in the control culture. The results indicate the great efficiency of in vitro applied MNH for in-duction of morphological variants of Saintpaulia, and especially variegated forms.https://pbsociety.org.pl/journals/index.php/asbp/article/view/953African violetMNHleaf culturechlorophyll deficient formsorganogenesis
spellingShingle Marek Gaj
Małgorzata D. Gaj
The high frequency of variegated forms after in vitro mutagenesis in Saintpaulia ionantha Wendl.
Acta Societatis Botanicorum Poloniae
African violet
MNH
leaf culture
chlorophyll deficient forms
organogenesis
title The high frequency of variegated forms after in vitro mutagenesis in Saintpaulia ionantha Wendl.
title_full The high frequency of variegated forms after in vitro mutagenesis in Saintpaulia ionantha Wendl.
title_fullStr The high frequency of variegated forms after in vitro mutagenesis in Saintpaulia ionantha Wendl.
title_full_unstemmed The high frequency of variegated forms after in vitro mutagenesis in Saintpaulia ionantha Wendl.
title_short The high frequency of variegated forms after in vitro mutagenesis in Saintpaulia ionantha Wendl.
title_sort high frequency of variegated forms after in vitro mutagenesis in saintpaulia ionantha wendl
topic African violet
MNH
leaf culture
chlorophyll deficient forms
organogenesis
url https://pbsociety.org.pl/journals/index.php/asbp/article/view/953
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