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AtVps11 is essential for vacuole biogenesis in embryo and participates in pollen tube growth in Arabidopsis.

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.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Tan X,Wei J,Li B,Wang M,Bao Y

doi

10.1016/j.bbrc.2017.07.059

subject

Has Abstract

pub_date

2017-09-23 00:00:00

pages

794-799

issue

3

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(17)31402-X

journal_volume

491

pub_type

杂志文章

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