B
Bastien Christ
Researcher at University of Zurich
Publications - 24
Citations - 930
Bastien Christ is an academic researcher from University of Zurich. The author has contributed to research in topics: Chlorophyll & Chloroplast. The author has an hindex of 15, co-authored 23 publications receiving 705 citations. Previous affiliations of Bastien Christ include Massachusetts Institute of Technology & University of São Paulo.
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Journal ArticleDOI
Mechanism and Significance of Chlorophyll Breakdown
TL;DR: This review summarizes the current knowledge on the biochemical reactions involved in chlorophyll breakdown, with a special focus on the second-phase reactions and the fate of by-products that are released from chlorophylla during its breakdown.
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Cytochrome P450 CYP89A9 Is Involved in the Formation of Major Chlorophyll Catabolites during Leaf Senescence in Arabidopsis
Bastien Christ,Iris Süssenbacher,Simone Moser,Nicole Bichsel,Aurélie Egert,Thomas Müller,Bernhard Kräutler,Stefan Hörtensteiner +7 more
TL;DR: A group of distinct dioxobilin-type chlorophyll catabolites (DCCs) are identified as the major breakdown products in wild-type Arabidopsis, representing more than 90% of the chlorophyh of green leaves.
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Repeated evolution of cytochrome P450-mediated spiroketal steroid biosynthesis in plants.
Bastien Christ,Chengchao Xu,Menglong Xu,Fu-Shuang Li,Naoki Wada,A.J. Mitchell,Xiu-Lin Han,Meng-Liang Wen,Makoto Fujita,Makoto Fujita,Jing-Ke Weng +10 more
TL;DR: In this article, the diosgenin-biosynthetic pathway in plants was investigated in the presence of a pair of cytochromes P450 that catalyzes oxidative 5,6-spiroketalization of cholesterol to produce diogenin.
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MES16, a Member of the Methylesterase Protein Family, Specifically Demethylates Fluorescent Chlorophyll Catabolites during Chlorophyll Breakdown in Arabidopsis
Bastien Christ,Silvia Schelbert,Sylvain Aubry,Iris Süssenbacher,Thomas Müller,Bernhard Kräutler,Stefan Hörtensteiner +6 more
TL;DR: It is demonstrated that MES16 is an integral component of Chl breakdown in Arabidopsis and specifically demethylates Chl catabolites at the level of FCCs in the cytosol.
Journal ArticleDOI
Different mechanisms are responsible for chlorophyll dephytylation during fruit ripening and leaf senescence in tomato
Luzia Guyer,Silvia Schelbert Hofstetter,Bastien Christ,Bruno Silvestre Lira,Magdalena Rossi,Stefan Hörtensteiner +5 more
TL;DR: It is concluded that PPH is the core phytol-hydrolytic enzyme during leaf senescence in different plant species; however, fruit ripening involves other hydrolases, which are active in parallel to PPH or are the core hydrolase in fruits.