Different sets of ER-resident J-proteins regulate distinct polar nuclear-membrane fusion events in Arabidopsis thaliana.

doi:10.1093/pcp/pcu120

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Article

Different sets of ER-resident J-proteins regulate distinct polar nuclear-membrane fusion events in Arabidopsis thaliana.

Plant & cell physiology - 1 Nov 2014

Maruyama Daisuke, Yamamoto Masaya, Endo Toshiya, Nishikawa Shuh-ichi

Abstract excerpt

Angiosperm female gametophytes contain a central cell with two polar nuclei. In many species, including Arabidopsis thaliana, the polar nuclei fuse during female gametogenesis. We previously showed that BiP, an Hsp70 in the endoplasmic reticulum (ER), was essential for membrane fusion during female gametogenesis. Hsp70 function requires partner proteins for full activity. J-domain containing proteins (J-proteins)...

Topics

Arabidopsis
Arabidopsis Proteins
Endoplasmic Reticulum
Endosperm
HSP40 Heat-Shock Proteins
Membrane Fusion
Microscopy, Electron, Transmission
Mutation
Nuclear Envelope
Ovule
Plants, Genetically Modified

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PMID: 25231968
DOI: 10.1093/pcp/pcu120

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