Comparative transcriptomics and proteomics analysis of the symbiotic germination of Paphiopedilum barbigerum with Epulorhiza sp. FQXY019

IntroductionPaphiopedilum barbigerum is currently the rarest and most endangered species of orchids in China and has significant ornamental value. The mature seeds of P. barbigerum are difficult to germinate owing to the absence of an endosperm and are highly dependent on mycorrhizal fungi for germi...

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Main Authors: Fan Tian, Juncai Wang, Fangjun Ding, Lianhui Wang, Yanbing Yang, Xinxiang Bai, Chengjiang Tan, Xiaofeng Liao
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-03-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2024.1358137/full
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author Fan Tian
Fan Tian
Juncai Wang
Fangjun Ding
Fangjun Ding
Lianhui Wang
Lianhui Wang
Yanbing Yang
Yanbing Yang
Xinxiang Bai
Chengjiang Tan
Xiaofeng Liao
author_facet Fan Tian
Fan Tian
Juncai Wang
Fangjun Ding
Fangjun Ding
Lianhui Wang
Lianhui Wang
Yanbing Yang
Yanbing Yang
Xinxiang Bai
Chengjiang Tan
Xiaofeng Liao
author_sort Fan Tian
collection DOAJ
description IntroductionPaphiopedilum barbigerum is currently the rarest and most endangered species of orchids in China and has significant ornamental value. The mature seeds of P. barbigerum are difficult to germinate owing to the absence of an endosperm and are highly dependent on mycorrhizal fungi for germination and subsequent development. However, little is known about the regulation mechanisms of symbiosis and symbiotic germination of P. barbigerum seeds.MethodsHerein, transcriptomics and proteomics were used to explore the changes in the P. barbigerum seeds after inoculation with (FQXY019 treatment group) or without (control group) Epulorhiza sp. FQXY019 at 90 days after germination.ResultsTranscriptome sequencing revealed that a total of 10,961 differentially expressed genes (DEGs; 2,599 upregulated and 8,402 downregulated) were identified in the control and FQXY019 treatment groups. These DEGs were mainly involved in carbohydrate, fatty acid, and amino acid metabolism. Furthermore, the expression levels of candidate DEGs related to nodulin, Ca2+ signaling, and plant lectins were significantly affected in P. barbigerum in the FQXY019 treatment groups. Subsequently, tandem mass tag-based quantitative proteomics was performed to recognize the differentially expressed proteins (DEPs), and a total of 537 DEPs (220 upregulated and 317 downregulated) were identified that were enriched in processes including photosynthesis, photosynthesis-antenna proteins, and fatty acid biosynthesis and metabolism.DiscussionThis study provides novel insight on the mechanisms underlying the in vitro seed germination and protocorm development of P. barbigerum by using a compatible fungal symbiont and will benefit the reintroduction and mycorrhizal symbiotic germination of endangered orchids.
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spelling doaj.art-e3618c2ff08043f3a62081b0aa6db6fd2024-03-18T04:54:49ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2024-03-011510.3389/fmicb.2024.13581371358137Comparative transcriptomics and proteomics analysis of the symbiotic germination of Paphiopedilum barbigerum with Epulorhiza sp. FQXY019Fan Tian0Fan Tian1Juncai Wang2Fangjun Ding3Fangjun Ding4Lianhui Wang5Lianhui Wang6Yanbing Yang7Yanbing Yang8Xinxiang Bai9Chengjiang Tan10Xiaofeng Liao11Guizhou Academy of Forestry, Guiyang, Guizhou, ChinaKey Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, ChinaGuizhou Academy of Sciences, Guiyang, Guizhou, ChinaGuizhou Academy of Forestry, Guiyang, Guizhou, ChinaKey Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, ChinaGuizhou Academy of Forestry, Guiyang, Guizhou, ChinaKey Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, ChinaGuizhou Academy of Forestry, Guiyang, Guizhou, ChinaKey Laboratory for Biodiversity Conservation in the Karst Mountain Area of Southwestern China, National Forestry and Grassland Administration, Guiyang, Guizhou, ChinaCollege of Forestry, Guizhou University, Guiyang, Guizhou, ChinaGuizhou Maolan National Nature Reserve Administration, Libo, Guizhou, ChinaGuizhou Academy of Sciences, Guiyang, Guizhou, ChinaIntroductionPaphiopedilum barbigerum is currently the rarest and most endangered species of orchids in China and has significant ornamental value. The mature seeds of P. barbigerum are difficult to germinate owing to the absence of an endosperm and are highly dependent on mycorrhizal fungi for germination and subsequent development. However, little is known about the regulation mechanisms of symbiosis and symbiotic germination of P. barbigerum seeds.MethodsHerein, transcriptomics and proteomics were used to explore the changes in the P. barbigerum seeds after inoculation with (FQXY019 treatment group) or without (control group) Epulorhiza sp. FQXY019 at 90 days after germination.ResultsTranscriptome sequencing revealed that a total of 10,961 differentially expressed genes (DEGs; 2,599 upregulated and 8,402 downregulated) were identified in the control and FQXY019 treatment groups. These DEGs were mainly involved in carbohydrate, fatty acid, and amino acid metabolism. Furthermore, the expression levels of candidate DEGs related to nodulin, Ca2+ signaling, and plant lectins were significantly affected in P. barbigerum in the FQXY019 treatment groups. Subsequently, tandem mass tag-based quantitative proteomics was performed to recognize the differentially expressed proteins (DEPs), and a total of 537 DEPs (220 upregulated and 317 downregulated) were identified that were enriched in processes including photosynthesis, photosynthesis-antenna proteins, and fatty acid biosynthesis and metabolism.DiscussionThis study provides novel insight on the mechanisms underlying the in vitro seed germination and protocorm development of P. barbigerum by using a compatible fungal symbiont and will benefit the reintroduction and mycorrhizal symbiotic germination of endangered orchids.https://www.frontiersin.org/articles/10.3389/fmicb.2024.1358137/fullPaphiopedilum barbigerummycorrhizal fungisymbiotic germinationtranscriptomeproteome
spellingShingle Fan Tian
Fan Tian
Juncai Wang
Fangjun Ding
Fangjun Ding
Lianhui Wang
Lianhui Wang
Yanbing Yang
Yanbing Yang
Xinxiang Bai
Chengjiang Tan
Xiaofeng Liao
Comparative transcriptomics and proteomics analysis of the symbiotic germination of Paphiopedilum barbigerum with Epulorhiza sp. FQXY019
Frontiers in Microbiology
Paphiopedilum barbigerum
mycorrhizal fungi
symbiotic germination
transcriptome
proteome
title Comparative transcriptomics and proteomics analysis of the symbiotic germination of Paphiopedilum barbigerum with Epulorhiza sp. FQXY019
title_full Comparative transcriptomics and proteomics analysis of the symbiotic germination of Paphiopedilum barbigerum with Epulorhiza sp. FQXY019
title_fullStr Comparative transcriptomics and proteomics analysis of the symbiotic germination of Paphiopedilum barbigerum with Epulorhiza sp. FQXY019
title_full_unstemmed Comparative transcriptomics and proteomics analysis of the symbiotic germination of Paphiopedilum barbigerum with Epulorhiza sp. FQXY019
title_short Comparative transcriptomics and proteomics analysis of the symbiotic germination of Paphiopedilum barbigerum with Epulorhiza sp. FQXY019
title_sort comparative transcriptomics and proteomics analysis of the symbiotic germination of paphiopedilum barbigerum with epulorhiza sp fqxy019
topic Paphiopedilum barbigerum
mycorrhizal fungi
symbiotic germination
transcriptome
proteome
url https://www.frontiersin.org/articles/10.3389/fmicb.2024.1358137/full
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