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Ethylene regulation of sexual reproduction in the marine red alga Pyropia yezoensis (Rhodophyta)

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Title: Ethylene regulation of sexual reproduction in the marine red alga Pyropia yezoensis (Rhodophyta)
Authors: Uji, Toshiki Browse this author →KAKEN DB
Matsuda, Ryuya Browse this author
Takechi, Katsuaki Browse this author →KAKEN DB
Takano, Hiroyoshi Browse this author →KAKEN DB
Mizuta, Hiroyuki Browse this author →KAKEN DB
Takio, Susumu Browse this author →KAKEN DB
Keywords: ethylene
oxidative stress
red algae
sexual reproduction
Issue Date: Dec-2016
Publisher: Springer
Journal Title: Journal of Applied Phycology
Volume: 28
Issue: 6
Start Page: 3501
End Page: 3509
Publisher DOI: 10.1007/s10811-016-0904-6
Abstract: Plant growth regulators (PGRs) play a pivotal role in vascular plants, regulating growth, development, and stress responses; however, the role of PGRs in algae remains largely unexplored. Here, the role of ethylene, a simple plant growth regulator, was demonstrated in sexual reproduction of the marine red alga Pyropia yezoensis. Application of the ethylene precursor 1-aminocylopropane-1-carboxylic acid (ACC) promoted the formation of spermatia and zygotospores in the gametophytes as well as ethylene production, whereas the growth rate was repressed in comparison to gametophytes not treated with ACC. In addition, gametophytes treated with ACC and mature gametophytes showed enhanced tolerance to oxidative stress. Gene expression profiles revealed upregulation of genes involved in cell division and stress response in gametophytes treated with ACC and in mature gametophytes. These results indicate that ethylene plays an important role in the regulation of gamete formation and protection against stress-induced damage during the sexual reproductive stage. Considered together, these findings demonstrate that ethylene is involved in regulating the switching from a vegetative to a sexual reproductive phase in P. yezoensis.
Rights: The final publication is available at
Type: article (author version)
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 宇治 利樹

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