S
Simona Eicke
Researcher at ETH Zurich
Publications - 31
Citations - 1971
Simona Eicke is an academic researcher from ETH Zurich. The author has contributed to research in topics: Starch & Amylopectin. The author has an hindex of 18, co-authored 29 publications receiving 1598 citations. Previous affiliations of Simona Eicke include École Polytechnique Fédérale de Lausanne.
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Journal ArticleDOI
β-AMYLASE4, a Noncatalytic Protein Required for Starch Breakdown, Acts Upstream of Three Active β-Amylases in Arabidopsis Chloroplasts
Daniel C. Fulton,Michaela Stettler,Tabea Mettler,Cara K. Vaughan,Jing Li,Perigio Francisco,Manuel Gil,Heike Reinhold,Simona Eicke,Gaëlle Messerli,Gary Dorken,Karen J. Halliday,Alison M. Smith,Steven M. Smith,Samuel C. Zeeman +14 more
TL;DR: Data suggest that BAM4 facilitates or regulates starch breakdown and operates independently of BAM1 and BAM3, consistent with the proposal that β-amylase is a major enzyme of starch breakdown in leaves, but they reveal unexpected complexity in terms of the specialization of protein function.
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STARCH-EXCESS4 Is a Laforin-Like Phosphoglucan Phosphatase Required for Starch Degradation in Arabidopsis thaliana
Oliver Kötting,Diana Santelia,Christoph Edner,Simona Eicke,Tina Marthaler,Matthew S. Gentry,Sylviane Comparot-Moss,Jychian Chen,Alison M. Smith,Martin Steup,Gerhard Ritte,Samuel C. Zeeman +11 more
TL;DR: In vitro experiments show that the rate of starch granule degradation is increased upon simultaneous phosphorylation and dephosphorylation of starch, and it is proposed that glucan phosphorylating enzymes and phosphoglucan phosphatases work in synergy with glucan hydrolases to mediate efficient starch catabolism.
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Evidence for distinct mechanisms of starch granule breakdown in plants
Thierry Delatte,Thierry Delatte,Martin Umhang,Martin Umhang,Martine Trevisan,Simona Eicke,David Thorneycroft,Steven M. Smith,Samuel C. Zeeman +8 more
TL;DR: Evidence is presented that the debranching enzyme isoamylase 3 (ISA3) acts at the surface of the starch granule, but in its absence soluble branched glucans are debranched in the stroma via limit dextrinase.
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Starch Granule Biosynthesis in Arabidopsis Is Abolished by Removal of All Debranching Enzymes but Restored by the Subsequent Removal of an Endoamylase
Sebastian Streb,Thierry Delatte,Martin Umhang,Simona Eicke,Martine Schorderet,Didier Reinhardt,Samuel C. Zeeman +6 more
TL;DR: It is proposed that DBEs function in normal amylopectin synthesis by promoting amylipectin crystallization but conclude that they are not mandatory for starch granule synthesis.
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Blocking the Metabolism of Starch Breakdown Products in Arabidopsis Leaves Triggers Chloroplast Degradation
Michaela Stettler,Simona Eicke,Tabea Mettler,Tabea Mettler,Gaëlle Messerli,Gaëlle Messerli,Stefan Hörtensteiner,Samuel C. Zeeman +7 more
TL;DR: It is proposed that the accumulation of maltose and malto-oligosaccharides causes chloroplast dysfunction, which may by signaled via a form of retrograde signaling and trigger chloropleft degradation.