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Zhang S, Huang A, Lv X, Zhang J, Zhang M, Chen Y, Yang L, Wang H, Guo D, Luo X, Ren M, Dong P. Anti-Oomycete Effect and Mechanism of Salicylic Acid on Phytophthora infestans. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:20613-20624. [PMID: 38100671 DOI: 10.1021/acs.jafc.3c05748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Pathogenic oomycetes infect a wide variety of organisms, including plants, animals, and humans, and cause massive economic losses in global agriculture, aquaculture, and human health. Salicylic acid (SA), an endogenous phytohormone, is regarded as an inducer of plant immunity. Here, the potato late blight pathogen Phytophthora infestans was used as a model system to uncover the inhibitory mechanisms of SA on pathogenic oomycetes. In this research, SA significantly inhibited the mycelial growth, sporulation, sporangium germination, and virulence of P. infestans. Inhibition was closely related to enhanced autophagy, suppression of translation initiation, and ribosomal biogenesis in P. infestans, as shown by multiomics analysis (transcriptomics, proteomics, and phosphorylated proteomics). Monodansylcadaverine (MDC) staining and Western blotting analysis showed that SA promoted autophagy in P. infestans by probably targeting the TOR signaling pathway. These observations suggest that SA has the potential to control late blight caused by P. infestans.
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Affiliation(s)
- Shumin Zhang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Airong Huang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Xiulan Lv
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Jiaomei Zhang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Meiquan Zhang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Yang Chen
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Liting Yang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Hanyan Wang
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Dongmei Guo
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan, China
| | - Xiumei Luo
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
| | - Maozhi Ren
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
- Zhengzhou Research Base State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou 450000, China
- State Key Laboratory of Dao-di Herbs, Beijng 100700, China
| | - Pan Dong
- School of Life Sciences, Chongqing University, Chongqing 401331, China
- Chongqing Key Laboratory of Biology and Genetic Breeding for Tuber and Root Crops, Chongqing 400716, China
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Li S, Chen H, Hong J, Ye X, Wang J, Chen Y, Zhang L, Su Z, Yang Z. Chlorate-induced molecular floral transition revealed by transcriptomes. Open Life Sci 2023; 18:20220612. [PMID: 37528883 PMCID: PMC10389677 DOI: 10.1515/biol-2022-0612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 03/25/2023] [Accepted: 04/08/2023] [Indexed: 08/03/2023] Open
Abstract
Flowering in off-season longan (Dimocarpus longan L.) can be induced effectively by the application of potassium chlorate (KClO3), but the mechanism of the physiological induction is largely unknown to decipher its mechanism and identify genes potentially regulating the process, and comparative analysis via RNA-Seq was performed between vegetative and KClO3-induced floral buds. A total of 18,649 differentially expressed genes (DEGs) were identified between control and treated samples. Gene ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed that DEGs related to plant hormone signal transduction, mitogen-activated protein kinase (MAPK) signaling pathway, starch and sucrose metabolism, and phenylpropanoid biosynthesis were enriched in our data. A total of 29 flowering-related DEGs were identified in our study, such as APETALA1 (AP1), APETALA2 (AP2), AUXIN RESPONSE FACTOR 3/ETTIN (ARF3), SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 8 (SPL8), AGAMOUS (AG), and others. The upregulation of AP2 and SPL genes indicates that the age-related pathway is activated and influences the floral induction in KClO3-induced longan floral buds by coordinated regulation of genes related to AP1, AG, and ARF3. This study provides a valuable resource for studying molecular mechanisms underlying chlorate-induced floral transition in off-season longan, which may benefit the development and production of off-season tropical/subtropical fruit trees.
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Affiliation(s)
- Songgang Li
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou571101, Hainan, China
- College of Horticulture, South China Agricultural University, Guangzhou510642, Guangdong, China
| | - Houbin Chen
- College of Horticulture, South China Agricultural University, Guangzhou510642, Guangdong, China
| | - Jiwang Hong
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou571101, Hainan, China
| | - Xiuxu Ye
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou571101, Hainan, China
| | - Jiabao Wang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou571101, Hainan, China
| | - Yeyuan Chen
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou571101, Hainan, China
| | - Lei Zhang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou571101, Hainan, China
| | - Zuanxian Su
- College of Horticulture, South China Agricultural University, Guangzhou510642, Guangdong, China
| | - Ziqin Yang
- Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou571101, Hainan, China
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