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Expression profiles of four BES1/BZR1 homologous genes encoding bHLH transcription factors in Arabidopsis

Arabidopsis bHLH-type transcription factors—BRASSINOSTEROID INSENSITIVE 1-EMS-SUPPRESSOR 1 (BES1) and BRASSINAZOLE RESISTANT 1 (BZR1)—play key roles in brassinosteroid (BR) signaling. By contrast, the functions of the other four BES1/BZR1 homologs (BEH1–4) remain unknown. Here, we describe the detai...

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Autores principales: Otani, Yui, Tomonaga, Yusuke, Tokushige, Kenya, Kamimura, Miyu, Sasaki, Azusa, Nakamura, Yasushi, Nakamura, Takako, Matsuo, Tomoaki, Okamoto, Shigehisa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pesticide Science Society of Japan 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7251199/
https://www.ncbi.nlm.nih.gov/pubmed/32508516
http://dx.doi.org/10.1584/jpestics.D20-001
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author Otani, Yui
Tomonaga, Yusuke
Tokushige, Kenya
Kamimura, Miyu
Sasaki, Azusa
Nakamura, Yasushi
Nakamura, Takako
Matsuo, Tomoaki
Okamoto, Shigehisa
author_facet Otani, Yui
Tomonaga, Yusuke
Tokushige, Kenya
Kamimura, Miyu
Sasaki, Azusa
Nakamura, Yasushi
Nakamura, Takako
Matsuo, Tomoaki
Okamoto, Shigehisa
author_sort Otani, Yui
collection PubMed
description Arabidopsis bHLH-type transcription factors—BRASSINOSTEROID INSENSITIVE 1-EMS-SUPPRESSOR 1 (BES1) and BRASSINAZOLE RESISTANT 1 (BZR1)—play key roles in brassinosteroid (BR) signaling. By contrast, the functions of the other four BES1/BZR1 homologs (BEH1–4) remain unknown. Here, we describe the detailed expression profiles of the BES1/BZR1 family genes. Their expressions were distinct regarding growth-stage dependence and organ specificity but exhibited some overlaps as well. Furthermore, their mRNA levels mostly remained unchanged responding to seven non-BR phytohormones. However, BEH1 and BEH2 were downregulated by brassinolide, suggesting a close association with the BR function. Additionally, BEH4 was ubiquitously expressed throughout the life of the plant but displayed some expression preference. For instance, BEH4 expression was limited to guard cells and the adjacent pavement cells in the leaf epidermis and was induced during growth progression in very young seedlings, suggesting that BEH4 is specifically regulated in certain contexts, although it is almost constitutively controlled.
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spelling pubmed-72511992020-06-05 Expression profiles of four BES1/BZR1 homologous genes encoding bHLH transcription factors in Arabidopsis Otani, Yui Tomonaga, Yusuke Tokushige, Kenya Kamimura, Miyu Sasaki, Azusa Nakamura, Yasushi Nakamura, Takako Matsuo, Tomoaki Okamoto, Shigehisa J Pestic Sci Original Article Arabidopsis bHLH-type transcription factors—BRASSINOSTEROID INSENSITIVE 1-EMS-SUPPRESSOR 1 (BES1) and BRASSINAZOLE RESISTANT 1 (BZR1)—play key roles in brassinosteroid (BR) signaling. By contrast, the functions of the other four BES1/BZR1 homologs (BEH1–4) remain unknown. Here, we describe the detailed expression profiles of the BES1/BZR1 family genes. Their expressions were distinct regarding growth-stage dependence and organ specificity but exhibited some overlaps as well. Furthermore, their mRNA levels mostly remained unchanged responding to seven non-BR phytohormones. However, BEH1 and BEH2 were downregulated by brassinolide, suggesting a close association with the BR function. Additionally, BEH4 was ubiquitously expressed throughout the life of the plant but displayed some expression preference. For instance, BEH4 expression was limited to guard cells and the adjacent pavement cells in the leaf epidermis and was induced during growth progression in very young seedlings, suggesting that BEH4 is specifically regulated in certain contexts, although it is almost constitutively controlled. Pesticide Science Society of Japan 2020-05-20 /pmc/articles/PMC7251199/ /pubmed/32508516 http://dx.doi.org/10.1584/jpestics.D20-001 Text en © 2020 Pesticide Science Society of Japan https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) License.
spellingShingle Original Article
Otani, Yui
Tomonaga, Yusuke
Tokushige, Kenya
Kamimura, Miyu
Sasaki, Azusa
Nakamura, Yasushi
Nakamura, Takako
Matsuo, Tomoaki
Okamoto, Shigehisa
Expression profiles of four BES1/BZR1 homologous genes encoding bHLH transcription factors in Arabidopsis
title Expression profiles of four BES1/BZR1 homologous genes encoding bHLH transcription factors in Arabidopsis
title_full Expression profiles of four BES1/BZR1 homologous genes encoding bHLH transcription factors in Arabidopsis
title_fullStr Expression profiles of four BES1/BZR1 homologous genes encoding bHLH transcription factors in Arabidopsis
title_full_unstemmed Expression profiles of four BES1/BZR1 homologous genes encoding bHLH transcription factors in Arabidopsis
title_short Expression profiles of four BES1/BZR1 homologous genes encoding bHLH transcription factors in Arabidopsis
title_sort expression profiles of four bes1/bzr1 homologous genes encoding bhlh transcription factors in arabidopsis
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7251199/
https://www.ncbi.nlm.nih.gov/pubmed/32508516
http://dx.doi.org/10.1584/jpestics.D20-001
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