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Wang K, Wang H, Xu M, Ngea GLN, Zhang H. The proteome of Penicillium expansum during infection of postharvest apple is revealed using Label-Free and Parallel Reaction Monitoring(PRM)Techniques. J Proteomics 2024; 298:105142. [PMID: 38428586 DOI: 10.1016/j.jprot.2024.105142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/20/2024] [Accepted: 02/25/2024] [Indexed: 03/03/2024]
Abstract
Penicillium expansum is the main pathogen in the postharvest storage of apples. Penicilliosis caused by P. expansum infection not only seriously affects the appearance and quality of fruits, but also the secondary metabolite Patulin (PAT) can cause harm to human health. Until now, little attention has been paid to the molecular mechanism of P. expansum infecting apples. Studying its molecular mechanism can help us better prevent and control apple postharvest blue mold. In this present investigation, we will use Label-Free technology to perform proteomic sequencing on apple samples at key time points of P. expansum infection, explore and screen key proteins and metabolic pathways during infection, and use Parallel Reaction Monitoring (PRM) technology to thoroughly validate proteomic data. The infection of P. expansum activates the MAPK signaling pathway, plant-pathogen interaction metabolic pathway and phenylpropanoid biosynthesis pathway of apple, participates in the regulation of ROS generation and oxidative stress process, promotes the synthesis of lignin and flavonoids, and the synthesis of Pathogenesis-Related Protein helps apple directly defend against P. expansum infection. This study provides the foundation for relevant postharvest control strategies, paving the way for further exploration of the proteome of pathogens infecting fruit and vegetables. SIGNIFICANCE: Proteins are macromolecules essential to the life of organisms, as they participate in the function and structure of cells. Proteomics technology is currently one of the important means to study the the response mechanism of pathogenic bacteria to plant infection, which can reveal the essence of physiological and pathological processes and help to clarify the possible relationship between protein abundance and plant stress. The present study essentially uses recent proteome analysis technology, namely label-free and PRM techniques, and lays the foundations for studying the of the infection response between P. expansum and apples. In particular, it provides a broad perspective on the molecular mechanism of P. expansum in the early stage of apple infection through detailed functional exploration and verification of associated proteins. Thus, it provides a theoretical basis for preventing and treating apple postharvest blue mold.
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Affiliation(s)
- Kaili Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, People's Republic of China
| | - Hua Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, People's Republic of China
| | - Meng Xu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, People's Republic of China
| | | | - Hongyin Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, People's Republic of China.
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Li B, Yang Y, Cai J, Liu X, Shi T, Li C, Chen Y, Xu P, Huang G. Genomic Characteristics and Comparative Genomics Analysis of Two Chinese Corynespora cassiicola Strains Causing Corynespora Leaf Fall (CLF) Disease. J Fungi (Basel) 2021; 7:485. [PMID: 34208763 PMCID: PMC8235470 DOI: 10.3390/jof7060485] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/08/2021] [Accepted: 06/08/2021] [Indexed: 01/08/2023] Open
Abstract
Rubber tree Corynespora leaf fall (CLF) disease, caused by the fungus Corynespora cassiicola, is one of the most damaging diseases in rubber tree plantations in Asia and Africa, and this disease also threatens rubber nurseries and young rubber plantations in China. C. cassiicola isolates display high genetic diversity, and virulence profiles vary significantly depending on cultivar. Although one phytotoxin (cassicolin) has been identified, it cannot fully explain the diversity in pathogenicity between C. cassiicola species, and some virulent C. cassiicola strains do not contain the cassiicolin gene. In the present study, we report high-quality gapless genome sequences, obtained using short-read sequencing and single-molecule long-read sequencing, of two Chinese C. cassiicola virulent strains. Comparative genomics of gene families in these two stains and a virulent CPP strain from the Philippines showed that all three strains experienced different selective pressures, and metabolism-related gene families vary between the strains. Secreted protein analysis indicated that the quantities of secreted cell wall-degrading enzymes were correlated with pathogenesis, and the most aggressive CCP strain (cassiicolin toxin type 1) encoded 27.34% and 39.74% more secreted carbohydrate-active enzymes (CAZymes) than Chinese strains YN49 and CC01, respectively, both of which can only infect rubber tree saplings. The results of antiSMASH analysis showed that all three strains encode ~60 secondary metabolite biosynthesis gene clusters (SM BGCs). Phylogenomic and domain structure analyses of core synthesis genes, together with synteny analysis of polyketide synthase (PKS) and non-ribosomal peptide synthetase (NRPS) gene clusters, revealed diversity in the distribution of SM BGCs between strains, as well as SM polymorphisms, which may play an important role in pathogenic progress. The results expand our understanding of the C. cassiicola genome. Further comparative genomic analysis indicates that secreted CAZymes and SMs may influence pathogenicity in rubber tree plantations. The findings facilitate future exploration of the molecular pathogenic mechanism of C. cassiicola.
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Affiliation(s)
- Boxun Li
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, 4 Xueyuan Road, Haikou 571101, China; (B.L.); (Y.Y.); (J.C.); (X.L.); (T.S.); (C.L.); (Y.C.)
- College of Grassland Agriculture Science and Technology, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
| | - Yang Yang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, 4 Xueyuan Road, Haikou 571101, China; (B.L.); (Y.Y.); (J.C.); (X.L.); (T.S.); (C.L.); (Y.C.)
- College of Grassland Agriculture Science and Technology, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
| | - Jimiao Cai
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, 4 Xueyuan Road, Haikou 571101, China; (B.L.); (Y.Y.); (J.C.); (X.L.); (T.S.); (C.L.); (Y.C.)
- College of Grassland Agriculture Science and Technology, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
| | - Xianbao Liu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, 4 Xueyuan Road, Haikou 571101, China; (B.L.); (Y.Y.); (J.C.); (X.L.); (T.S.); (C.L.); (Y.C.)
- College of Grassland Agriculture Science and Technology, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
| | - Tao Shi
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, 4 Xueyuan Road, Haikou 571101, China; (B.L.); (Y.Y.); (J.C.); (X.L.); (T.S.); (C.L.); (Y.C.)
- College of Grassland Agriculture Science and Technology, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
| | - Chaoping Li
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, 4 Xueyuan Road, Haikou 571101, China; (B.L.); (Y.Y.); (J.C.); (X.L.); (T.S.); (C.L.); (Y.C.)
- College of Grassland Agriculture Science and Technology, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
| | - Yipeng Chen
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, 4 Xueyuan Road, Haikou 571101, China; (B.L.); (Y.Y.); (J.C.); (X.L.); (T.S.); (C.L.); (Y.C.)
- College of Grassland Agriculture Science and Technology, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
| | - Pan Xu
- Key Laboratory of Integrated Pest Management on Tropical Grops, Ministry of Agriculture and Rural Affairs, Beijing 100020, China;
| | - Guixiu Huang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, 4 Xueyuan Road, Haikou 571101, China; (B.L.); (Y.Y.); (J.C.); (X.L.); (T.S.); (C.L.); (Y.C.)
- College of Grassland Agriculture Science and Technology, Lanzhou University, 222 Tianshui South Road, Lanzhou 730000, China
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Yang G, Chen W, Tan H, Li K, Li J, Yin H. Biochemical characterization and evolutionary analysis of a novel pectate lyase from Aspergillus parasiticus. Int J Biol Macromol 2020; 152:180-188. [PMID: 32109469 DOI: 10.1016/j.ijbiomac.2020.02.279] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/22/2020] [Accepted: 02/24/2020] [Indexed: 10/24/2022]
Abstract
In this study, a novel pectate lyase (ApPel1) was identified and characterized from Aspergillus parasiticus. The ApPel1 hydrolysed oligogalacturonides (OGs) effectively and produced 4,5-unsaturated OGs from low-methoxyl (LM) pectin, with DP 2 to DP 5 as the major products. Furthermore, the multiple sequence alignments, structure model and phylogenetic analyses of the ApPel1 indicated that its catalytic active sites were highly conserved with other pectin lyases (PLs) and the Ca2+ binding amino acid residues are different compared with pectate lyases (Pels). N187D, N191D and N187D/N191D mutants were constructed to test for both Ca2+ binding properties and the effects on catalytic ability. The three mutations sharply decreased the activity of ApPel1 and Ca2+ tolerance, indicating that the Ca2+ binding amino acid residues are different from the other Pels. Based on the sequence and structure comparison between PLs and Pels, and mutation analysis, the ApPel1 may be direct evolution from PLs. Thus, this enzyme has potential for use in producing unsaturated OGs for biological activity study, and contributes to an improved understanding of the evolutionary relationships between PLs and Pels.
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Affiliation(s)
- Guojun Yang
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China; College of Fisheries and Life Science, Dalian Ocean University, Dalian 116023, China
| | - Wei Chen
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Haidong Tan
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Kuikui Li
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Junyan Li
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Heng Yin
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Tan H, Chen W, Liu Q, Yang G, Li K. Pectin Oligosaccharides Ameliorate Colon Cancer by Regulating Oxidative Stress- and Inflammation-Activated Signaling Pathways. Front Immunol 2018; 9:1504. [PMID: 30013563 PMCID: PMC6036268 DOI: 10.3389/fimmu.2018.01504] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/18/2018] [Indexed: 12/20/2022] Open
Abstract
Colon cancer (CC) is the third common neoplasm worldwide, and it is still a big challenge for exploring new effective medicine for treating CC. Natural product promoting human health has become a hot topic and attracted many researchers recently. Pectin, a complex polysaccharide in plant cell wall, mainly consists of four major types of polysaccharides: homogalacturonan, xylogalacturonan, rhamnogalacturonan I and II, all of which can be degraded into various pectin oligosaccharides (POS) and may provide abundant resource for exploring potential anticancer drugs. POS have been regarded as a novel class of potential functional food with multiple health-promoting properties. POS have antibacterial activities against some aggressive and recurrent bacterial infection and exert beneficial immunomodulation for controlling CC risk. However, the molecular functional role of POS in the prevention of CC risk and progression remains doubtful. The review focuses on antioxidant and anti-inflammatory roles of POS for promoting human health by regulating some potential oxidative and inflammation-activated pathways, such as ATP-activated protein kinase (AMPK), nuclear factor erythroid-2-related factor-2 (Nrf2), and nuclear factor-κB (NF-κB) pathways. The activation of these signaling pathways increases the antioxidant and antiinflammatory activities, which will result in the apoptosis of CC cells or in the prevention of CC risk and progression. Thus, POS may inhibit CC development by affecting antioxidant and antiinflammatory signaling pathways AMPK, Nrf2, and NF-κB. However, POS also can activate signal transduction and transcriptional activator 1 and 3 signaling pathway, which will reduce antioxidant and anti-inflammatory properties and promote CC progression. Specific structural and structurally modified POS may be associated with their functions and should be deeply explored in the future. The present review paper lacks the important information for the linkage between the specific structure of POS and its function. To further explore the effects of prebiotic potential of POS and their derivatives on human immunomodulation in the prevention of CC, the specific POS with a certain degree of polymerization or purified polymers are highly demanded to be performed in clinical practice.
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Affiliation(s)
- Haidong Tan
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Wei Chen
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Qishun Liu
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Guojun Yang
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Kuikui Li
- Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
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