Article (Scientific journals)
Energy conservation and dissipation in mitochondria isolated from developing tomato fruit of ethylene-defective mutants failing normal ripening: the effect of ethephon, a chemical precursor of ethylene.
Navet, Rachel; Jarmuszkiewicz, Wieslawa; Almeida, A. et al.
2003In Journal of Bioenergetics and Biomembranes, 35 (2), p. 157-168
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Keywords :
Alternative oxidase; uncoupling protein; mitochondria; respiration; tomato fruit development; ethylene-defective mutants; ethylene precursor treatment
Abstract :
[en] Alternative oxidase (AOX) and uncoupling protein (UCP) are present simultaneously in tomato fruit mitochondria. In a previous work, it has been shown that protein expression and activity of these two energy-dissipating systems exhibit large variations during tomato fruit development and ripening on the vine. It has been suggested that AOX and UCP could be responsible for the respiration increase at the end of ripening and that the cytochrome pathway could be implicated in the climacteric respiratory burst before the onset of ripening. In this study, the use of tomato mutants that fail normal ripening because of deficiencies in ethylene perception or production as well as the treatment of one selected mutant with a chemical precursor of ethylene have revealed that the bioenergetics of tomato fruit development and ripening is under the control of this plant hormone. Indeed, the evolution pattern of bioenergetic features changes with the type of mutation and with the introduction of ethylene into an ethylene-synthesis-deficient tomato fruit mutant during its induced ripening.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Navet, Rachel;  Université de Liège - ULiège
Jarmuszkiewicz, Wieslawa;  Université de Liège - ULiège
Almeida, A.
Sluse-Goffart, Claudine
Sluse, Francis ;  Université de Liège - ULiège > Département des sciences de la vie > Bioénergétique et physiologie cellulaire
Language :
English
Title :
Energy conservation and dissipation in mitochondria isolated from developing tomato fruit of ethylene-defective mutants failing normal ripening: the effect of ethephon, a chemical precursor of ethylene.
Publication date :
2003
Journal title :
Journal of Bioenergetics and Biomembranes
ISSN :
0145-479X
eISSN :
1573-6881
Publisher :
Kluwer Academic/Plenum Publishers, New York, United States - New York
Volume :
35
Issue :
2
Pages :
157-168
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 17 December 2009

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