Functional transformation of plant peroxisomes |
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Authors: | Makoto Hayashi Kanako Toriyama Maki Kondo Akira Kato Shoji Mano Luigi De Bellis Yasuko Hayashi-Ishimaru Katsushi Yamaguchi Hiroshi Hayashi Mikio Nishimura |
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Institution: | (1) Department of Cell Biology, National Institute for Basic Biology, 444 Okazaki, Japan;(2) Dipartimento di Biologia, via Prov. le Lecce-Monteroni, 73100 Lecce, Italy |
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Abstract: | Peroxisomes in higher plant cells are known to differentiate into at least three different classes, namely, glyoxysomes, leaf
peroxisomes, and unspecialalized peroxisomes, dependending on the cell types. In germinating fatty seedlings, glyoxysomes
that first appear in the etiolated cotyledonary cells are functionally transformed into leaf peroxisomes during greening.
Subsequently, the organelles are transformed back into glyoxysomes during senescence of the cotyledons. Flexibility of function
is a distinct feature of plant peroxisomes. This article briefly describes recent studies of the regulatory mechanisms involved
in the changes of the function of plant peroxisomes. |
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Keywords: | Glyoxysomes leaf peroxisomes fatty acid β -oxidation glyoxylate cycle photorespiration Arabidopsis |
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