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Feng L, Wei S, Li Y. Thaumatin-like Proteins in Legumes: Functions and Potential Applications-A Review. PLANTS (BASEL, SWITZERLAND) 2024; 13:1124. [PMID: 38674533 PMCID: PMC11055134 DOI: 10.3390/plants13081124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/14/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024]
Abstract
Thaumatin-like proteins (TLPs) comprise a complex and evolutionarily conserved protein family that participates in host defense and several developmental processes in plants, fungi, and animals. Importantly, TLPs are plant host defense proteins that belong to pathogenesis-related family 5 (PR-5), and growing evidence has demonstrated that they are involved in resistance to a variety of fungal diseases in many crop plants, particularly legumes. Nonetheless, the roles and underlying mechanisms of the TLP family in legumes remain unclear. The present review summarizes recent advances related to the classification, structure, and host resistance of legume TLPs to biotic and abiotic stresses; analyzes and predicts possible protein-protein interactions; and presents their roles in phytohormone response, root nodule formation, and symbiosis. The characteristics of TLPs provide them with broad prospects for plant breeding and other uses. Searching for legume TLP genetic resources and functional genes, and further research on their precise function mechanisms are necessary.
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Affiliation(s)
- Lanlan Feng
- Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China;
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Shaowei Wei
- Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
| | - Yin Li
- Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China;
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Deng H, Wang F, Wu Q, Sun H, Ma J, Ni R, Li Z, Zhang L, Zhang J, Liu M. Novel Multiresistant Osmotin-like Protein from Sweetpotato as a Promising Biofungicide to Control Ceratocystis fimbriata by Destroying Spores through Accumulation of Reactive Oxygen Species. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:1487-1499. [PMID: 38215405 DOI: 10.1021/acs.jafc.3c07663] [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: 01/14/2024]
Abstract
Osmotin-like proteins (OLPs) play an important role in host-plant defense. In this study, a novel multiresistant OLP (IbOLP1) was screened from sweetpotato (Ipomoea batatas) with a molecular weight of 26.3 kDa. The expression level of IbOLP1 was significantly higher in resistant cultivars than susceptible ones after inoculation with Ceratocystis fimbriata, which causes black rot disease in sweetpotato. The expression of IbOLP1 in Pichia pastoris led to the lysis of yeast cells themselves. The recombinant IbOLP1 displayed antifungal, antibacterial, and antinematode activity and stability. IbOLP1 could restrain the mycelial growth and lyse spores of C. fimbriata, distinctly reducing the incidence of black rot in sweetpotato. The IbOLP1 can trigger the apoptosis of black rot spores by elevating the intracellular levels of reactive oxygen species. Collectively, these findings suggest that IbOLP1 can be used to develop natural antimicrobial resources instead of chemical agents and generate new, disease-resistant germplasm.
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Affiliation(s)
- Huangyue Deng
- Department of Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China
| | - Fangrui Wang
- Department of Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China
| | - Qian Wu
- Department of Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China
| | - Houjun Sun
- Xuzhou Institute of Agricultural Sciences in Jiangsu, Xuhuai District, Xuzhou, Jiangsu Province 221131, China
| | - Jukui Ma
- Xuzhou Institute of Agricultural Sciences in Jiangsu, Xuhuai District, Xuzhou, Jiangsu Province 221131, China
| | - Rui Ni
- Department of Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China
| | - Zongyun Li
- Department of Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China
| | - Liming Zhang
- Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, Shandong Province 250100, China
| | - Jian Zhang
- Department of Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China
| | - Meiyan Liu
- Department of Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, Jiangsu Province 221116, China
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Subramanian S, Mitkus E, Souleimanov A, Smith DL. Lipo-chitooligosaccharide and thuricin 17 act as plant growth promoters and alleviate drought stress in Arabidopsis thaliana. Front Microbiol 2023; 14:1184158. [PMID: 37601342 PMCID: PMC10436337 DOI: 10.3389/fmicb.2023.1184158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 07/10/2023] [Indexed: 08/22/2023] Open
Abstract
Lipo-chito-oligosaccharide (LCO-from Bradyrhizobium japonicum) and thuricin 17 (Th17-from Bacillus thuringiensis) are bacterial signal compounds from the rhizosphere of soybean that have been shown to enhance plant growth in a range of legumes and non-legumes. In this study, an attempt to quantify phytohormones involved in the initial hours after exposure of Arabidopsis thaliana to these compounds was conducted using UPLC-ESI-MS/MS. A petri-plate assay was conducted to screen for drought stress tolerance to PEG 8000 infusion and plant growth was studied 21-days post-stress. Arabidopsis thaliana plants grown in trays with drought stress imposed by water withhold were used for free proline determination, elemental analysis, and untargeted proteomics using LC-MS/MS studies. At 24 h post-exposure to the signal compounds under optimal growth conditions, Arabidopsis thaliana rosettes varied in their responses to the two signals. While LCO-treated rosettes showed a decrease in total IAA, cytokinins, gibberellins, and jasmonic acid, increases in ABA and SA was very clear. Th17-treated rosettes, on the other hand, showed an increase in IAA and SA. Both treatments resulted in decreased JA levels. Under severe drought stress imposed by PEG 8000 infusion, LCO and Th17 treatments were found to significantly increase fresh and dry weight over drought-stressed control plates, indicating that the presence of the signaling compounds decreased the negative effects experienced by the plants. Free proline content increased in LCO- and Th17-treated plants after water-withhold drought stress. Elemental analysis showed a significant increase in carbon percentage at the lower concentration of Th17. Untargeted proteomics revealed changes in the levels of drought-specific ribosomal proteins, glutathione S-transferase, late embryogenesis proteins, vegetative storage proteins 1 and 2, thaumatin-like proteins, and those related to chloroplast and carbon metabolism. The roles of some of these significantly affected proteins detected under drought stress are discussed.
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Affiliation(s)
| | - Erika Mitkus
- Department of Biology, McGill University, Montreal, QC, Canada
| | - Alfred Souleimanov
- Department of Plant Sciences, MacDonald Campus, McGill University, Montreal, QC, Canada
| | - Donald L. Smith
- Department of Plant Sciences, MacDonald Campus, McGill University, Montreal, QC, Canada
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Gu Y, Yu H, He S, Zhang P, Ma X. Genome-Wide Identification and Characterization of the TLP Gene Family in Phyllostachys edulis and Association with Witches' Broom Disease Resistance in Bamboo. Int J Mol Sci 2023; 24:10257. [PMID: 37373405 DOI: 10.3390/ijms241210257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/12/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
Thaumatin-like proteins (TLPs) are pathogenesis-related proteins with pivotal roles in plant defense mechanisms. In this study, various bioinformatics and RNA-seq methods were used to analyze the biotic and abiotic stress responses of the TLP family in Phyllostachys edulis. Overall, 81 TLP genes were identified in P. edulis; 166 TLPs from four plant species were divided into three groups and ten subclasses, with genetic covariance observed between these species. Subcellular localization in silico studies indicated that TLPs were primarily distributed in the extracellular. Analysis of the upstream sequences of TLPs demonstrated the presence of cis-acting elements related to disease defense, environmental stress, and hormonal responses. Multiple sequence alignment demonstrated that most TLPs possessed five conserved REDDD amino acid sequences with only a few amino acid residue differences. RNA-seq analysis of P. edulis responses to Aciculosporium take, the pathogenic fungus that causes witches' broom disease, showed that P. edulis TLPs (PeTLPs) were expressed in different organs, with the highest expression in buds. PeTLPs responded to both abscisic acid and salicylic acid stress. These PeTLP expression patterns were consistent with their gene and protein structures. Collectively, our findings provide a basis for further comprehensive analyses of the genes related to witches' broom in P. edulis.
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Affiliation(s)
- Yu Gu
- College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Haoyue Yu
- College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Sainan He
- College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Pan Zhang
- College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaoping Ma
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
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Anisimova OK, Kochieva EZ, Shchennikova AV, Filyushin MA. Thaumatin-like Protein (TLP) Genes in Garlic (Allium sativum L.): Genome-Wide Identification, Characterization, and Expression in Response to Fusarium proliferatum Infection. PLANTS 2022; 11:plants11060748. [PMID: 35336630 PMCID: PMC8949454 DOI: 10.3390/plants11060748] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/01/2022] [Accepted: 03/10/2022] [Indexed: 11/16/2022]
Abstract
Plant antifungal proteins include the pathogenesis-related (PR)-5 family of fungi- and other stress-responsive thaumatin-like proteins (TLPs). However, the information on the TLPs of garlic (Allium sativum L.), which is often infected with soil Fusarium fungi, is very limited. In the present study, we identified 32 TLP homologs in the A. sativum cv. Ershuizao genome, which may function in the defense against Fusarium attack. The promoters of A. sativumTLP (AsTLP) genes contained cis-acting elements associated with hormone signaling and response to various types of stress, including those caused by fungal pathogens and their elicitors. The expression of AsTLP genes in Fusarium-resistant and -susceptible garlic cultivars was differently regulated by F. proliferatum infection. Thus, in the roots the mRNA levels of AsTLP7–9 and 21 genes were increased in resistant and decreased in susceptible A. sativum cultivars, suggesting the involvement of these genes in the garlic response to F. proliferatum attack. Our results provide insights into the role of TLPs in garlic and may be useful for breeding programs to increase the resistance of Allium crops to Fusarium infections.
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