Transcriptomic and Proteomic Profiling Reveal the Key Role of AcMYB16 in the Response of Pseudomonas syringae pv. actinidiae in Kiwifruit

Kiwifruit bacterial canker caused by Pseudomonas syringae pv. actinidiae (Psa), is an important disease of kiwifruit (Actinidia Lind.). Plant hormones may induce various secondary metabolites to resist pathogens via modulation of hormone-responsive transcription factors (TFs), as reported in past st...

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Autores principales: Xiaojie Wang, Yawei Li, Yuanyuan Liu, Dongle Zhang, Min Ni, Bing Jia, Wei Heng, Zemin Fang, Li-wu Zhu, Pu Liu
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Publicado: Frontiers Media S.A. 2021
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spelling oai:doaj.org-article:b97cf2d903e04837b818d43182ee83752021-11-11T13:17:20ZTranscriptomic and Proteomic Profiling Reveal the Key Role of AcMYB16 in the Response of Pseudomonas syringae pv. actinidiae in Kiwifruit1664-462X10.3389/fpls.2021.756330https://doaj.org/article/b97cf2d903e04837b818d43182ee83752021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fpls.2021.756330/fullhttps://doaj.org/toc/1664-462XKiwifruit bacterial canker caused by Pseudomonas syringae pv. actinidiae (Psa), is an important disease of kiwifruit (Actinidia Lind.). Plant hormones may induce various secondary metabolites to resist pathogens via modulation of hormone-responsive transcription factors (TFs), as reported in past studies. In this study, we showed that JA accumulated in the susceptible cultivar Actinidia chinensis ‘Hongyang’ but decreased in the resistant cultivar of A. chinensis var. deliciosa ‘Jinkui’ in response to Psa. Integrated transcriptomic and proteomic analyses were carried out using the resistant cultivar ‘Jinkui’. A total of 5,045 differentially expressed genes (DEGs) and 1,681 differentially expressed proteins (DEPs) were identified after Psa infection. Two pathways, ‘plant hormone signal transduction’ and ‘phenylpropanoid biosynthesis,’ were activated at the protein and transcript levels. In addition, a total of 27 R2R3-MYB transcription factors (TFs) were involved in the response to Psa of ‘Jinkui,’ including the R2R3-MYB TF subgroup 4 gene AcMYB16, which was downregulated in ‘Jinkui’ but upregulated in ‘Hongyang.’ The promoter region of AcMYB16 has a MeJA responsiveness cis-acting regulatory element (CRE). Transient expression of the AcMYB16 gene in the leaves of ‘Jinkui’ induced Psa infection. Together, these data suggest that AcMYB16 acts as a repressor to regulate the response of kiwifruit to Psa infection. Our work will help to unravel the processes of kiwifruit resistance to pathogens and will facilitate the development of varieties with resistance against bacterial pathogens.Xiaojie WangXiaojie WangYawei LiYuanyuan LiuDongle ZhangMin NiBing JiaWei HengZemin FangLi-wu ZhuPu LiuFrontiers Media S.A.articleActinidia chinensis var. deliciosabacterial cankerproteometranscriptomeMYB TFsPlant cultureSB1-1110ENFrontiers in Plant Science, Vol 12 (2021)
institution DOAJ
collection DOAJ
language EN
topic Actinidia chinensis var. deliciosa
bacterial canker
proteome
transcriptome
MYB TFs
Plant culture
SB1-1110
spellingShingle Actinidia chinensis var. deliciosa
bacterial canker
proteome
transcriptome
MYB TFs
Plant culture
SB1-1110
Xiaojie Wang
Xiaojie Wang
Yawei Li
Yuanyuan Liu
Dongle Zhang
Min Ni
Bing Jia
Wei Heng
Zemin Fang
Li-wu Zhu
Pu Liu
Transcriptomic and Proteomic Profiling Reveal the Key Role of AcMYB16 in the Response of Pseudomonas syringae pv. actinidiae in Kiwifruit
description Kiwifruit bacterial canker caused by Pseudomonas syringae pv. actinidiae (Psa), is an important disease of kiwifruit (Actinidia Lind.). Plant hormones may induce various secondary metabolites to resist pathogens via modulation of hormone-responsive transcription factors (TFs), as reported in past studies. In this study, we showed that JA accumulated in the susceptible cultivar Actinidia chinensis ‘Hongyang’ but decreased in the resistant cultivar of A. chinensis var. deliciosa ‘Jinkui’ in response to Psa. Integrated transcriptomic and proteomic analyses were carried out using the resistant cultivar ‘Jinkui’. A total of 5,045 differentially expressed genes (DEGs) and 1,681 differentially expressed proteins (DEPs) were identified after Psa infection. Two pathways, ‘plant hormone signal transduction’ and ‘phenylpropanoid biosynthesis,’ were activated at the protein and transcript levels. In addition, a total of 27 R2R3-MYB transcription factors (TFs) were involved in the response to Psa of ‘Jinkui,’ including the R2R3-MYB TF subgroup 4 gene AcMYB16, which was downregulated in ‘Jinkui’ but upregulated in ‘Hongyang.’ The promoter region of AcMYB16 has a MeJA responsiveness cis-acting regulatory element (CRE). Transient expression of the AcMYB16 gene in the leaves of ‘Jinkui’ induced Psa infection. Together, these data suggest that AcMYB16 acts as a repressor to regulate the response of kiwifruit to Psa infection. Our work will help to unravel the processes of kiwifruit resistance to pathogens and will facilitate the development of varieties with resistance against bacterial pathogens.
format article
author Xiaojie Wang
Xiaojie Wang
Yawei Li
Yuanyuan Liu
Dongle Zhang
Min Ni
Bing Jia
Wei Heng
Zemin Fang
Li-wu Zhu
Pu Liu
author_facet Xiaojie Wang
Xiaojie Wang
Yawei Li
Yuanyuan Liu
Dongle Zhang
Min Ni
Bing Jia
Wei Heng
Zemin Fang
Li-wu Zhu
Pu Liu
author_sort Xiaojie Wang
title Transcriptomic and Proteomic Profiling Reveal the Key Role of AcMYB16 in the Response of Pseudomonas syringae pv. actinidiae in Kiwifruit
title_short Transcriptomic and Proteomic Profiling Reveal the Key Role of AcMYB16 in the Response of Pseudomonas syringae pv. actinidiae in Kiwifruit
title_full Transcriptomic and Proteomic Profiling Reveal the Key Role of AcMYB16 in the Response of Pseudomonas syringae pv. actinidiae in Kiwifruit
title_fullStr Transcriptomic and Proteomic Profiling Reveal the Key Role of AcMYB16 in the Response of Pseudomonas syringae pv. actinidiae in Kiwifruit
title_full_unstemmed Transcriptomic and Proteomic Profiling Reveal the Key Role of AcMYB16 in the Response of Pseudomonas syringae pv. actinidiae in Kiwifruit
title_sort transcriptomic and proteomic profiling reveal the key role of acmyb16 in the response of pseudomonas syringae pv. actinidiae in kiwifruit
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/b97cf2d903e04837b818d43182ee8375
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