Optimum Sterilization Method for In Vitro Cultivation of Dimorphic Seeds of the Succulent Halophyte <i>Suaeda aralocaspica</i>

<i>Suaeda aralocaspica</i> is an annual halophyte in the Amaranthaceae in the saline deserts of central Asia. This plant has succulent leaves and grape-like fruits and is a potential horticultural plant. To obtain the efficient sterilization method and optimal culture conditions, two typ...

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Main Authors: Yu Si, Yakupjan Haxim, Lei Wang
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Horticulturae
Subjects:
Online Access:https://www.mdpi.com/2311-7524/8/4/289
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author Yu Si
Yakupjan Haxim
Lei Wang
author_facet Yu Si
Yakupjan Haxim
Lei Wang
author_sort Yu Si
collection DOAJ
description <i>Suaeda aralocaspica</i> is an annual halophyte in the Amaranthaceae in the saline deserts of central Asia. This plant has succulent leaves and grape-like fruits and is a potential horticultural plant. To obtain the efficient sterilization method and optimal culture conditions, two types of seeds produced from a single plant of <i>S. aralocaspica</i> were treated with 75% ethanol for different time durations first, and then sodium hypochlorite (NaClO) or mercury chloride (HgCl<sub>2</sub>), with five different timing treatments were used for second seed surface sterilization. Sterilized seeds were germinated on a Murashige and Skoog (MS) medium at different potential hydrogenation (pH) levels, to examine germination and seedling performance. The results showed that the highest germination percentage of brown seeds was 100% and that of black seeds was 17%. Thus, brown seeds were more suitable for further culture experiments than black seeds. For brown seeds, the sterilization effect of NaClO was better than that of HgCl<sub>2,</sub> based on the results of seed germination, contamination, and seedling survival. Rinsing with 75% ethanol for 60 s, sterilizing with NaClO for 8 min, and cultivating at pH 8.0 MS for 7 days was the best of all sterilization procedures and cultivation methods tested, which has been successfully applied to <i>S. aralocaspica</i> in vitro culture. The optimized protocol described here can be used as the reference for the <i>Suaeda</i> genus.
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spelling doaj.art-a6c51cfa599b45569d88fc62e548333d2023-12-01T21:00:14ZengMDPI AGHorticulturae2311-75242022-03-018428910.3390/horticulturae8040289Optimum Sterilization Method for In Vitro Cultivation of Dimorphic Seeds of the Succulent Halophyte <i>Suaeda aralocaspica</i>Yu Si0Yakupjan Haxim1Lei Wang2State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Geography and Ecology, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Geography and Ecology, Chinese Academy of Sciences, Urumqi 830011, ChinaState Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Geography and Ecology, Chinese Academy of Sciences, Urumqi 830011, China<i>Suaeda aralocaspica</i> is an annual halophyte in the Amaranthaceae in the saline deserts of central Asia. This plant has succulent leaves and grape-like fruits and is a potential horticultural plant. To obtain the efficient sterilization method and optimal culture conditions, two types of seeds produced from a single plant of <i>S. aralocaspica</i> were treated with 75% ethanol for different time durations first, and then sodium hypochlorite (NaClO) or mercury chloride (HgCl<sub>2</sub>), with five different timing treatments were used for second seed surface sterilization. Sterilized seeds were germinated on a Murashige and Skoog (MS) medium at different potential hydrogenation (pH) levels, to examine germination and seedling performance. The results showed that the highest germination percentage of brown seeds was 100% and that of black seeds was 17%. Thus, brown seeds were more suitable for further culture experiments than black seeds. For brown seeds, the sterilization effect of NaClO was better than that of HgCl<sub>2,</sub> based on the results of seed germination, contamination, and seedling survival. Rinsing with 75% ethanol for 60 s, sterilizing with NaClO for 8 min, and cultivating at pH 8.0 MS for 7 days was the best of all sterilization procedures and cultivation methods tested, which has been successfully applied to <i>S. aralocaspica</i> in vitro culture. The optimized protocol described here can be used as the reference for the <i>Suaeda</i> genus.https://www.mdpi.com/2311-7524/8/4/289sodium hypochloritemercury chloridesterilization timeseed germination
spellingShingle Yu Si
Yakupjan Haxim
Lei Wang
Optimum Sterilization Method for In Vitro Cultivation of Dimorphic Seeds of the Succulent Halophyte <i>Suaeda aralocaspica</i>
Horticulturae
sodium hypochlorite
mercury chloride
sterilization time
seed germination
title Optimum Sterilization Method for In Vitro Cultivation of Dimorphic Seeds of the Succulent Halophyte <i>Suaeda aralocaspica</i>
title_full Optimum Sterilization Method for In Vitro Cultivation of Dimorphic Seeds of the Succulent Halophyte <i>Suaeda aralocaspica</i>
title_fullStr Optimum Sterilization Method for In Vitro Cultivation of Dimorphic Seeds of the Succulent Halophyte <i>Suaeda aralocaspica</i>
title_full_unstemmed Optimum Sterilization Method for In Vitro Cultivation of Dimorphic Seeds of the Succulent Halophyte <i>Suaeda aralocaspica</i>
title_short Optimum Sterilization Method for In Vitro Cultivation of Dimorphic Seeds of the Succulent Halophyte <i>Suaeda aralocaspica</i>
title_sort optimum sterilization method for in vitro cultivation of dimorphic seeds of the succulent halophyte i suaeda aralocaspica i
topic sodium hypochlorite
mercury chloride
sterilization time
seed germination
url https://www.mdpi.com/2311-7524/8/4/289
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