Journal Article

<i>MALE GAMETOPHYTE DEFECTIVE 1</i>, Encoding the F<sub>A</sub>d Subunit of Mitochondrial F<sub>1</sub>F<sub>0</sub>-ATP Synthase, is Essential for Pollen Formation in <i>Arabidopsis thaliana</i>

Wen-Qing Li, Xue-Qin Zhang, Chuan Xia, Yi Deng and De Ye

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 51, issue 6, pages 923-935
Published in print June 2010 | ISSN: 0032-0781
Published online April 2010 | e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/pcp/pcq066
MALE GAMETOPHYTE DEFECTIVE 1, Encoding the FAd Subunit of Mitochondrial F1F0-ATP Synthase, is Essential for Pollen Formation in Arabidopsis thaliana

More Like This

Show all results sharing these subjects:

  • Biochemistry
  • Molecular and Cell Biology
  • Plant Sciences and Forestry

GO

Show Summary Details

Preview

In flowering plants, pollen formation is a complex process and strictly controlled by genetic factors. Although thousands of genes have been identified to be highly or specifically expressed in pollen grains, little is known about the functions and regulatory mechanisms of the genes in pollen formation. Here we report the characterization of a novel gene, MALE GAMETOPHYTE DEFECTIVE 1 (MGP1), that is essential for pollen formation in Arabidopsis thaliana. MGP1 encodes the FAd subunit of mitochondrial F1F0-ATP synthase in Arabidopsis. It was highly expressed in pollen grains at the later developmental stage. Mutation in MGP1 led to destruction of the mitochondria in pollen grains at the dehydration stage and subsequently death of the pollen grains. These results suggested that MGP1 plays important roles in pollen formation, possibly by regulating the activity of mitochondrial F1F0-ATP synthase in Arabidopsis pollen grains.

Keywords: Arabidopsis; ATP synthase; Gametogenesis; MGP1; Mitochondria; Pollen

Journal Article.  6338 words.  Illustrated.

Subjects: Biochemistry ; Molecular and Cell Biology ; Plant Sciences and Forestry

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.