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Wang C, Wang R, Hu L, Xi M, Wang M, Ma Y, Chen J, Liu C, Song Y, Ding N, Gao P. Metabolites and metabolic pathways associated with allelochemical effects of linoleic acid on Karenia mikimotoi. JOURNAL OF HAZARDOUS MATERIALS 2023; 447:130815. [PMID: 36669412 DOI: 10.1016/j.jhazmat.2023.130815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/25/2022] [Accepted: 01/16/2023] [Indexed: 06/17/2023]
Abstract
Linoleic acid (LA) shows great potential in inhibiting the growth of multiple red tide microalgae by disturbing algal physio-biochemical processes. However, our knowledge on the mechanisms of algal mortality at metabolic level remains limited. Herein, the response of K. mikimotoi to LA was evaluated using metabolomics, stable isotope techniques (SIT), and physiological indicators. Results showed that 100 μg/L LA promoted the growth of K. mikimotoi, which was significantly inhibited by 500 μg/L LA, along with a significant reduction of photosynthetic pigments and a significant increase of reactive oxygen species (ROS). SIT showed that LA entered algal cells, and 56 isotopologues involved in ferroptosis, carotenoid biosynthesis, and porphyrin metabolism were identified. Non-targeted metabolomics identified 90 and 111 differential metabolites (DEMs) belonging to 11 metabolic pathways under the 500 μg/L and 100 μg/L LA exposure, respectively. Among them, 34 DEMs were detected by SIT. Metabolic pathway analysis showed that 500 μg/L LA significantly promoted ferroptosis, and significantly inhibited carotenoid biosynthesis, porphyrin metabolism, sphingolipid metabolism, and lipopolysaccharide biosynthesis, presenting changes opposite to those observed in 100 μg/L LA-treated K. mikimotoi. Overall, this study revealed the metabolic response of K. mikimotoi to LA, enriching our understanding on the allelochemical mechanism of LA on K. mikimotoi.
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Affiliation(s)
- Chao Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China
| | - Renjun Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China.
| | - Lijun Hu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China
| | - Muchen Xi
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China
| | - Mengjiao Wang
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China
| | - Yujiao Ma
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China
| | - Junfeng Chen
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China
| | - Chunchen Liu
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China
| | - Yuhao Song
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China
| | - Ning Ding
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China
| | - Peike Gao
- College of Life Sciences, Qufu Normal University, Qufu, Shandong 273165, PR China.
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Jan M, Liu Z, Rochaix JD, Sun X. Retrograde and anterograde signaling in the crosstalk between chloroplast and nucleus. FRONTIERS IN PLANT SCIENCE 2022; 13:980237. [PMID: 36119624 PMCID: PMC9478734 DOI: 10.3389/fpls.2022.980237] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/18/2022] [Indexed: 06/02/2023]
Abstract
The chloroplast is a complex cellular organelle that not only performs photosynthesis but also synthesizes amino acids, lipids, and phytohormones. Nuclear and chloroplast genetic activity are closely coordinated through signaling chains from the nucleus to chloroplast, referred to as anterograde signaling, and from chloroplast to the nucleus, named retrograde signaling. The chloroplast can act as an environmental sensor and communicates with other cell compartments during its biogenesis and in response to stress, notably with the nucleus through retrograde signaling to regulate nuclear gene expression in response to developmental cues and stresses that affect photosynthesis and growth. Although several components involved in the generation and transmission of plastid-derived retrograde signals and in the regulation of the responsive nuclear genes have been identified, the plastid retrograde signaling network is still poorly understood. Here, we review the current knowledge on multiple plastid retrograde signaling pathways, and on potential plastid signaling molecules. We also discuss the retrograde signaling-dependent regulation of nuclear gene expression within the frame of a multilayered network of transcription factors.
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Affiliation(s)
- Masood Jan
- State Key Laboratory of Cotton Biology and State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, China
| | - Zhixin Liu
- State Key Laboratory of Cotton Biology and State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, China
| | - Jean-David Rochaix
- Department of Molecular Biology and Plant Biology, University of Geneva, Geneva, Switzerland
| | - Xuwu Sun
- State Key Laboratory of Cotton Biology and State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, China
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Hsu PK, Tsai YT, Lin YC, Kuan CM. Assessment of the acute and sub-acute toxicity of the ethanolic extract of the aerial parts of Crassocephalum rabens (Asteraceae) in rats. Toxicol Rep 2022; 9:58-63. [PMID: 35004182 PMCID: PMC8717411 DOI: 10.1016/j.toxrep.2021.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/15/2021] [Accepted: 12/15/2021] [Indexed: 01/03/2023] Open
Abstract
This pioneering study was to assess the acute and sub-acute toxicity of the ethanolic extract of the aerial parts of Crassocephalum rabens (Asteraceae) in rats. C. rabens is a common vegetable and herb for treating inflammation-related syndromes in Taiwan. Pharmacological studies have unveiled that the extracts of C. rabens have potential to become hepatoprotective, anti-inflammatory, or anti-cancer agents. The toxicological effects of the aerial parts of C. rabens in rodents are still elusive. For the acute toxicity study, rats were administrated with a single dose of 5,000 mg/kg body weight (BW) and observed for 14 days in accordance with the Organization for Economic Cooperation and Development (OECD) guideline No. 420. For the sub-acute toxicity study, animals were orally treated with daily doses of 0, 416.7, 833.3, and 1,666.7 mg/kg BW for 28 days based on the OECD guideline No. 407. The toxicity of the repeated dose was observed with anthropometric, hematological, and biochemical parameters as well as histology. The mortality and critical pathological and biochemical abnormalities were not observed in the acute and/or sub-acute toxicity studies. The oral median lethal dose (LD50) of the extract was greater than 5000 mg/kg BW. The no-observed-adverse-effect-level (NOAEL) in male and female rats was greater than 1,666.7 mg/kg BW. As such, the extract of the aerial parts of C. rabens is considered a non-toxic substance.
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Affiliation(s)
- Pang-Kuei Hsu
- Greenyn Biotechnology Co., Ltd., Taichung City, 42881, Taiwan
| | - Yueh-Ting Tsai
- Greenyn Biotechnology Co., Ltd., Taichung City, 42881, Taiwan.,Testing Center, Super Laboratory Inc., New Taipei City, 24890, Taiwan.,Institute of Food Science and Technology, National Taiwan University, Taipei City, 10617, Taiwan
| | - Yu-Cheng Lin
- Institute of Food Science and Technology, National Taiwan University, Taipei City, 10617, Taiwan
| | - Chen-Meng Kuan
- Greenyn Biotechnology Co., Ltd., Taichung City, 42881, Taiwan
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Wei F, Zheng M, Deng Q, Wan X, Xu J, Gong Y, Chen H, Huang F. Highlights of the Fifth International Symposium on Lipid Science and Health. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:8891-8894. [PMID: 34404215 DOI: 10.1021/acs.jafc.1c03310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The International Symposium on Lipid Science and Health (ISLSH) has been organized annually by the Oil Crops Research Institute of Chinese Academy of Agricultural Sciences (OCRI-CAAS) since 2016. The purpose of the symposium was to bring together the leading lipid science and health researchers throughout the world to discuss the current state of knowledge as well as research needs with respect to chemistry and beneficial health properties of lipids. The Fifth International Symposium on Lipid Science and Health was held on October 2020 in Wuhan, Hubei, China. Speakers from China, the United States, Australia, Finland, and other countries delivered wonderful presentations. The presentations covered such diverse topics as lipid profiling and characterization, lipid preparation and modification, lipid improvement and regulation, and lipid nutrition and health. As a record of the symposium proceedings, this special issue comprises a selection of 27 papers from oral presentations and poster contributions and is prefaced by this introduction.
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Affiliation(s)
- Fang Wei
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Key Laboratory of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture, and Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan, Hubei 430062, People's Republic of China
| | - Mingming Zheng
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Key Laboratory of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture, and Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan, Hubei 430062, People's Republic of China
| | - Qianchun Deng
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Key Laboratory of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture, and Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan, Hubei 430062, People's Republic of China
| | - Xia Wan
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Key Laboratory of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture, and Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan, Hubei 430062, People's Republic of China
| | - Jiqu Xu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Key Laboratory of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture, and Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan, Hubei 430062, People's Republic of China
| | - Yangmin Gong
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Key Laboratory of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture, and Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan, Hubei 430062, People's Republic of China
| | - Hong Chen
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Key Laboratory of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture, and Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan, Hubei 430062, People's Republic of China
| | - Fenghong Huang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Key Laboratory of Biology and Genetic Improvement of Oil Crops of Ministry of Agriculture, and Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan, Hubei 430062, People's Republic of China
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