Bioactive steroids from seed germination supporting fungus (Ceratobasidium GS2) of the terrestrial orchid Gymnadenia conopsea

ABSTRACTAlmost all orchids rely on mycorrhizal fungus to support their seed germination. To date, the effect of active components in mycorrhizal fungus on orchid seed germination largely remains unknown. In this study, we aimed to investigate the impact of active components found in mycorrhizal fung...

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Main Authors: Lixin Shi, Zeyu Zhao, Luna Yang, Gang Ding, Xiaoke Xing
Format: Article
Language:English
Published: Taylor & Francis Group 2023-10-01
Series:Mycology
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/21501203.2023.2254893
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author Lixin Shi
Zeyu Zhao
Luna Yang
Gang Ding
Xiaoke Xing
author_facet Lixin Shi
Zeyu Zhao
Luna Yang
Gang Ding
Xiaoke Xing
author_sort Lixin Shi
collection DOAJ
description ABSTRACTAlmost all orchids rely on mycorrhizal fungus to support their seed germination. To date, the effect of active components in mycorrhizal fungus on orchid seed germination largely remains unknown. In this study, we aimed to investigate the impact of active components found in mycorrhizal fungus on orchid seed germination. Specifically, we focused on a terrestrial orchid Gymnadenia conopsea and its host-specific seed germination supporting fungus Ceratobasidium GS2. In total, several steroids (1–7) were isolated from this fungus. Notably, compounds 1, 2, 4, and 5 exhibited significant enhancements in protocorm volume. Moreover, compounds 1–6 demonstrated strong promotion of protocorm differentiation. These findings suggest that steroids may play a crucial role in the symbiotic germination of G. conopsea seeds. Future studies should continue to explore the specific mechanisms through which these steroids exert their effects, contributing to our understanding of orchid biology and mycorrhizal interaction.
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spelling doaj.art-75dcd76b231b45b89877c708382060342024-01-22T07:21:34ZengTaylor & Francis GroupMycology2150-12032150-12112023-10-0114437138010.1080/21501203.2023.2254893Bioactive steroids from seed germination supporting fungus (Ceratobasidium GS2) of the terrestrial orchid Gymnadenia conopseaLixin Shi0Zeyu Zhao1Luna Yang2Gang Ding3Xiaoke Xing4Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaKey Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaKey Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaKey Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaKey Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaABSTRACTAlmost all orchids rely on mycorrhizal fungus to support their seed germination. To date, the effect of active components in mycorrhizal fungus on orchid seed germination largely remains unknown. In this study, we aimed to investigate the impact of active components found in mycorrhizal fungus on orchid seed germination. Specifically, we focused on a terrestrial orchid Gymnadenia conopsea and its host-specific seed germination supporting fungus Ceratobasidium GS2. In total, several steroids (1–7) were isolated from this fungus. Notably, compounds 1, 2, 4, and 5 exhibited significant enhancements in protocorm volume. Moreover, compounds 1–6 demonstrated strong promotion of protocorm differentiation. These findings suggest that steroids may play a crucial role in the symbiotic germination of G. conopsea seeds. Future studies should continue to explore the specific mechanisms through which these steroids exert their effects, contributing to our understanding of orchid biology and mycorrhizal interaction.https://www.tandfonline.com/doi/10.1080/21501203.2023.2254893Gymnadenia conopseaorchid mycorrhizal fungiCeratobasidium sp.steroidsbiologic activityprotocorm differentiation
spellingShingle Lixin Shi
Zeyu Zhao
Luna Yang
Gang Ding
Xiaoke Xing
Bioactive steroids from seed germination supporting fungus (Ceratobasidium GS2) of the terrestrial orchid Gymnadenia conopsea
Mycology
Gymnadenia conopsea
orchid mycorrhizal fungi
Ceratobasidium sp.
steroids
biologic activity
protocorm differentiation
title Bioactive steroids from seed germination supporting fungus (Ceratobasidium GS2) of the terrestrial orchid Gymnadenia conopsea
title_full Bioactive steroids from seed germination supporting fungus (Ceratobasidium GS2) of the terrestrial orchid Gymnadenia conopsea
title_fullStr Bioactive steroids from seed germination supporting fungus (Ceratobasidium GS2) of the terrestrial orchid Gymnadenia conopsea
title_full_unstemmed Bioactive steroids from seed germination supporting fungus (Ceratobasidium GS2) of the terrestrial orchid Gymnadenia conopsea
title_short Bioactive steroids from seed germination supporting fungus (Ceratobasidium GS2) of the terrestrial orchid Gymnadenia conopsea
title_sort bioactive steroids from seed germination supporting fungus ceratobasidium gs2 of the terrestrial orchid gymnadenia conopsea
topic Gymnadenia conopsea
orchid mycorrhizal fungi
Ceratobasidium sp.
steroids
biologic activity
protocorm differentiation
url https://www.tandfonline.com/doi/10.1080/21501203.2023.2254893
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