PsEND1 Is a Key Player in Pea Pollen Development Through the Modulation of Redox Homeostasis Article Swipe
Rim Hamza
,
Edelín Roque
,
Concepción Gómez‐Mena
,
Francisco Madueño
,
José Pío Beltrán
,
Luis A. Cañas
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3389/fpls.2021.765277
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3389/fpls.2021.765277
Redox homeostasis has been linked to proper anther and pollen development. Accordingly, plant cells have developed several Reactive Oxygen Species (ROS)-scavenging mechanisms to maintain the redox balance. Hemopexins constitute one of these mechanisms preventing heme-associated oxidative stress in animals, fungi, and plants. Pisum sativum ENDOTHECIUM 1 (PsEND1 ) is a pea anther-specific gene that encodes a protein containing four hemopexin domains. We report the functional characterization of PsEND1 and the identification in its promoter region of cis -regulatory elements that are essential for the specific expression in anthers. PsEND1 promoter deletion analysis revealed that a putative CArG-like regulatory motif is necessary to confer promoter activity in developing anthers. Our data suggest that PsEND1 might be a hemopexin regulated by a MADS-box protein. PsEND1 gene silencing in pea, and its overexpression in heterologous systems, result in similar defects in the anthers consisting of precocious tapetum degradation and the impairment of pollen development. Such alterations were associated to the production of superoxide anion and altered activity of ROS-scavenging enzymes. Our findings demonstrate that PsEND1 is essential for pollen development by modulating ROS levels during the differentiation of the anther tissues surrounding the microsporocytes.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3389/fpls.2021.765277
- OA Status
- gold
- Cited By
- 8
- References
- 104
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3210467877
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3210467877Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3389/fpls.2021.765277Digital Object Identifier
- Title
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PsEND1 Is a Key Player in Pea Pollen Development Through the Modulation of Redox HomeostasisWork title
- Type
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articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
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2021Year of publication
- Publication date
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2021-10-29Full publication date if available
- Authors
-
Rim Hamza, Edelín Roque, Concepción Gómez‐Mena, Francisco Madueño, José Pío Beltrán, Luis A. CañasList of authors in order
- Landing page
-
https://doi.org/10.3389/fpls.2021.765277Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.3389/fpls.2021.765277Direct OA link when available
- Concepts
-
Pollen, Key (lock), Redox, Homeostasis, Biology, Cell biology, Botany, Chemistry, Ecology, Organic chemistryTop concepts (fields/topics) attached by OpenAlex
- Cited by
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8Total citation count in OpenAlex
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-
2025: 2, 2024: 3, 2023: 2, 2022: 1Per-year citation counts (last 5 years)
- References (count)
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104Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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