Publication Date:
1999-04-09
Description:
Mature Arabidopsis seeds are enriched in storage proteins and lipids, but lack starch. In the shrunken seed 1 (sse1) mutant, however, starch is favored over proteins and lipids as the major storage compound. SSE1 has 26 percent identity with Pex16p in Yarrowia lipolytica and complements pex16 mutants defective in the formation of peroxisomes and the transportation of plasma membrane- and cell wall-associated proteins. In Arabidopsis maturing seeds, SSE1 is required for protein and oil body biogenesis, both of which are endoplasmic reticulum-dependent. Starch accumulation in sse1 suggests that starch formation is a default storage deposition pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lin, Y -- Sun, L -- Nguyen, L V -- Rachubinski, R A -- Goodman, H M -- New York, N.Y. -- Science. 1999 Apr 9;284(5412):328-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10195899" target="_blank"〉PubMed〈/a〉
Keywords:
Amino Acid Sequence
;
Arabidopsis/genetics/*metabolism/ultrastructure
;
*Arabidopsis Proteins
;
*Fungal Proteins
;
Gene Expression
;
Genetic Complementation Test
;
Membrane Proteins/chemistry/genetics
;
Microbodies/metabolism/ultrastructure
;
Microscopy, Electron
;
Molecular Sequence Data
;
Mutation
;
Organelles/*metabolism/ultrastructure
;
Phenotype
;
Plant Oils/metabolism
;
Plant Proteins/chemistry/genetics/metabolism/*physiology
;
Reverse Transcriptase Polymerase Chain Reaction
;
Saccharomycetales/chemistry/genetics/metabolism
;
Seeds/*metabolism/ultrastructure
;
Starch/metabolism
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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