Paclobutrazol induces the concurrent accumulation of chrysolaminarin and lipids in the diatom <italic style="font-style: italic">Phaeodactylum tricornutum</italic>

Yufeng YANG; Yang LU; Jianwei ZHENG; Dawei LI; Xiang WANG; Weidong YANG; Hongye LI

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Paclobutrazol induces the concurrent accumulation of chrysolaminarin and lipids in the diatom Phaeodactylum tricornutum

Ecology | Updated：2024-10-14

- Paclobutrazol induces the concurrent accumulation of chrysolaminarin and lipids in the diatom Phaeodactylum tricornutum
- Paclobutrazol induces the concurrent accumulation of chrysolaminarin and lipids in the diatom Phaeodactylum tricornutum
- 海洋湖沼学报(英文) 2023年41卷第5期页码：1809-1820
- Affiliations：
  
  Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
- Author bio：
  
  thyli@jnu.edu.cn
- Funds：
  
  the National Natural Science Foundation of China(31870027;42006125);the Guangdong Natural Science Foundation(2019B1515120062)
- DOI：
  中图分类号：
- 收稿：2022-04-15，
  
  录用：2022-05-27，
  
  网络首发：2022-07-05，
  
  纸质出版：2023-09-01
- Accepted：
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Paclobutrazol induces the concurrent accumulation of chrysolaminarin and lipids in the diatom Phaeodactylum tricornutum[J]. 海洋湖沼学报(英文), 2023,41(5):1809-1820.

YANG Yufeng,LU Yang,ZHENG Jianwei,et al.Paclobutrazol induces the concurrent accumulation of chrysolaminarin and lipids in the diatom Phaeodactylum tricornutum[J].Journal of Oceanology and Limnology,2023,41(05):1809-1820.
Paclobutrazol induces the concurrent accumulation of chrysolaminarin and lipids in the diatom Phaeodactylum tricornutum[J]. 海洋湖沼学报(英文), 2023,41(5):1809-1820. DOI：

YANG Yufeng,LU Yang,ZHENG Jianwei,et al.Paclobutrazol induces the concurrent accumulation of chrysolaminarin and lipids in the diatom Phaeodactylum tricornutum[J].Journal of Oceanology and Limnology,2023,41(05):1809-1820. DOI：

摘要

Abstract

Paclobutrazol is a plant growth regulator and inhibitor of endogenous gibberellin synthesis. It is a powerful inhibitor of vegetative growth by changing the photosynthetic rate and plant hormone levels

thereby affecting plant growth and development. In this study

the effects of paclobutrazol on the model diatom

Phaeodactylum

tricornutum

were investigated. Results show that 2.5-mg/L and 10-mg/L paclobutrazol significantly inhibited the algal growth by inhibiting chlorophyll synthesis

which affects photosynthesis. The antioxidant system

including catalase (CAT) and glutathione peroxidase (GPx) was severely damaged. Chrysolaminarin content was significantly elevated and doubled up to 127 mg/g dry cell weight (DCW) by 10-mg/L paclobutrazol treatment. In combination with transcriptomic analysis

paclobutrazol was demonstrated to play a regulatory role in the accumulation of chrysolaminarin and neutral lipids.

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Paclobutrazol induces the concurrent accumulation of chrysolaminarin and lipids in the diatom Phaeodactylum tricornutum

Paclobutrazol induces the concurrent accumulation of chrysolaminarin and lipids in the diatom Phaeodactylum tricornutum

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