The forkhead-associated domain 2 (FHA2) in Arabidopsis plays a role in plant fertility by regulating stamen development

Eu Ree Ahn; Hui Kyung Cho; Hyun Sook Pai

doi:10.1007/s00425-012-1815-7

The forkhead-associated domain 2 (FHA2) in Arabidopsis plays a role in plant fertility by regulating stamen development

Eu Ree Ahn, Hui Kyung Cho, Hyun Sook Pai

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The forkhead-associated (FHA) domain is involved in protein-protein interaction by recognizing a phosphothreonine epitope on target proteins. In this study, we investigated in planta functions of the Arabidopsis FHA domain 2. AtFHA2 was mainly localized in the nucleus. Arabidopsisfha2 null mutants grew normally during the vegetative stage, but had severely reduced fertility during reproductive stage. The reduced fertility was mainly caused by defective stamen filament elongation, while female flower parts of the mutants were fertile. Additionally, the mutants had fewer stamens than the wild type and the vegetative organs of the mutants, such as cotyledons and leaves, had increased ploidy. These results suggest that AtFHA2 may play a role in a signaling pathway for the control of plant organ development.

Original language	English
Pages (from-to)	1015-1023
Number of pages	9
Journal	Planta
Volume	237
Issue number	4
DOIs	https://doi.org/10.1007/s00425-012-1815-7
Publication status	Published - 2013 Apr

Bibliographical note

Funding Information:
Acknowledgments This research was supported by the Next-Generation BioGreen 21 Program [PMBC (No. PJ009079) and SSAC (No. PJ008214); RDA] and the Mid-career Researcher Program (No. 2012047824; NRF/MEST) of Korea.

All Science Journal Classification (ASJC) codes

Genetics
Plant Science

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title = "The forkhead-associated domain 2 (FHA2) in Arabidopsis plays a role in plant fertility by regulating stamen development",

abstract = "The forkhead-associated (FHA) domain is involved in protein-protein interaction by recognizing a phosphothreonine epitope on target proteins. In this study, we investigated in planta functions of the Arabidopsis FHA domain 2. AtFHA2 was mainly localized in the nucleus. Arabidopsisfha2 null mutants grew normally during the vegetative stage, but had severely reduced fertility during reproductive stage. The reduced fertility was mainly caused by defective stamen filament elongation, while female flower parts of the mutants were fertile. Additionally, the mutants had fewer stamens than the wild type and the vegetative organs of the mutants, such as cotyledons and leaves, had increased ploidy. These results suggest that AtFHA2 may play a role in a signaling pathway for the control of plant organ development.",

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note = "Funding Information: Acknowledgments This research was supported by the Next-Generation BioGreen 21 Program [PMBC (No. PJ009079) and SSAC (No. PJ008214); RDA] and the Mid-career Researcher Program (No. 2012047824; NRF/MEST) of Korea.",

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AU - Pai, Hyun Sook

N1 - Funding Information: Acknowledgments This research was supported by the Next-Generation BioGreen 21 Program [PMBC (No. PJ009079) and SSAC (No. PJ008214); RDA] and the Mid-career Researcher Program (No. 2012047824; NRF/MEST) of Korea.

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AB - The forkhead-associated (FHA) domain is involved in protein-protein interaction by recognizing a phosphothreonine epitope on target proteins. In this study, we investigated in planta functions of the Arabidopsis FHA domain 2. AtFHA2 was mainly localized in the nucleus. Arabidopsisfha2 null mutants grew normally during the vegetative stage, but had severely reduced fertility during reproductive stage. The reduced fertility was mainly caused by defective stamen filament elongation, while female flower parts of the mutants were fertile. Additionally, the mutants had fewer stamens than the wild type and the vegetative organs of the mutants, such as cotyledons and leaves, had increased ploidy. These results suggest that AtFHA2 may play a role in a signaling pathway for the control of plant organ development.

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The forkhead-associated domain 2 (FHA2) in Arabidopsis plays a role in plant fertility by regulating stamen development

Abstract

Bibliographical note

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