In:
Frontiers in Plant Science, Frontiers Media SA, Vol. 13 ( 2022-6-16)
Abstract:
Peroxisomes participate in several important metabolic processes in eukaryotic cells, such as the detoxification of reactive oxygen species (ROS) or the degradation of fatty acids by β-oxidation. Recently, the presence of peroxisomes in the cryptophyte Guillardia theta and other “chromalveolates” was revealed by identifying proteins for peroxisomal biogenesis. Here, we investigated the subcellular localization of candidate proteins of G. theta in the diatom Phaeodactylum tricornutum , either possessing a putative peroxisomal targeting signal type 1 (PTS1) sequence or factors lacking a peroxisomal targeting signal but known to be involved in β-oxidation. Our results indicate important contributions of the peroxisomes of G. theta to the carbohydrate, ether phospholipid, nucleotide, vitamin K, ROS, amino acid, and amine metabolisms. Moreover, our results suggest that in contrast to many other organisms, the peroxisomes of G. theta are not involved in the β-oxidation of fatty acids, which exclusively seems to occur in the cryptophyte's mitochondria.
Type of Medium:
Online Resource
ISSN:
1664-462X
DOI:
10.3389/fpls.2022.889662
DOI:
10.3389/fpls.2022.889662.s001
DOI:
10.3389/fpls.2022.889662.s002
DOI:
10.3389/fpls.2022.889662.s003
DOI:
10.3389/fpls.2022.889662.s004
DOI:
10.3389/fpls.2022.889662.s005
DOI:
10.3389/fpls.2022.889662.s006
DOI:
10.3389/fpls.2022.889662.s007
DOI:
10.3389/fpls.2022.889662.s008
DOI:
10.3389/fpls.2022.889662.s009
DOI:
10.3389/fpls.2022.889662.s010
DOI:
10.3389/fpls.2022.889662.s011
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2022
detail.hit.zdb_id:
2687947-5
detail.hit.zdb_id:
2613694-6
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