AtVps11 is essential for vacuole biogenesis in embryo and participates in pollen tube growth in Arabidopsis.
Biochem Biophys Res Commun
; 491(3): 794-799, 2017 09 23.
Article
em En
| MEDLINE
| ID: mdl-28711500
ABSTRACT
Vacuoles are multiple functional and essential organelles in plants. Studies in Saccharomyces cerevisiae had identified a tethering factor HOPS (Homotypic Fusion and Vacuolar Protein Sorting) complex that plays a critical role in vacuole biogenesis. The HOPS complex consists of four core subunits (Vps11, Vps16, Vps18 and Vps33) and two special subunits (Vps39 and Vps41). All these subunits were found in Arabidopsis, and our knowledge of the function of Arabidopsis HOPS complex are still limited. In this study, we investigated the function of AtVps11 gene in Arabidopsis, we found that vps11/- lead to embryo lethal, vacuole biogenesis in embryo was impaired. Furthermore, pollen tube growth was arrested by vps11 mutation, however, no obvious vacuole biogenesis defects were found in vps11 pollen tube. Our study indicated that in Arabidopsis, Vps11 is required for vacuole biogenesis in embryo, which is essential for embryogenesis. It also plays a role in pollen tube growth but looks not required for vacuole biogenesis in pollen tube.
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Base de dados:
MEDLINE
Assunto principal:
Vacúolos
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Biogênese de Organelas
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Arabidopsis
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Proteínas Adaptadoras de Transporte Vesicular
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Tubo Polínico
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Biochem Biophys Res Commun
Ano de publicação:
2017
Tipo de documento:
Article