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Tang T, Ding Y, Guo W. Development of an Efficient CRISPR/Cas9 System in Fusarium verticillioides and Its Application in Reducing Mycotoxin Contamination. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:14229-14240. [PMID: 38797952 DOI: 10.1021/acs.jafc.4c01914] [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: 05/29/2024]
Abstract
Fusarium verticillioides (F. verticillioides) is a globally recognized and highly impactful fungal pathogen of maize, causing yield losses and producing harmful mycotoxins that pose a threat to human and animal health. However, the genetic tools available for studying this crucial fungus are currently limited in comparison to other important fungal pathogens. To address this, an efficient CRISPR/Cas9 genome editing system based on an autonomously replicating plasmid with an AMA1 sequence was established in this study. First, gene disruption of pyrG and pyrE via nonhomologous end-joining (NHEJ) pathway was successfully achieved, with efficiency ranging from 66 to 100%. Second, precise gene deletions were achieved with remarkable efficiency using a dual sgRNA expression strategy. Third, the developed genome editing system can be applied to generate designer chromosomes in F. verticillioides, as evidenced by the deletion of a crucial 38 kb fragment required for fumonisin biosynthesis. Fourth, the pyrG recycling system has been established and successfully applied in F. verticillioides. Lastly, the developed ΔFUM1 and ΔFUM mutants can serve as biocontrol agents to reduce the fumonisin B1 (FB1) contamination produced by the toxigenic strain. Taken together, these significant advancements in genetic manipulation and biocontrol strategies provide valuable tools for studying and mitigating the impact of F. verticillioides on maize crops.
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Affiliation(s)
- Tingting Tang
- Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Beijing 100193, P. R. China
| | - Yi Ding
- Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Beijing 100193, P. R. China
| | - Wei Guo
- Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Beijing 100193, P. R. China
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Lal D, Dev D, Kumari S, Pandey S, Aparna, Sharma N, Nandni S, Jha RK, Singh A. Fusarium wilt pandemic: current understanding and molecular perspectives. Funct Integr Genomics 2024; 24:41. [PMID: 38386088 DOI: 10.1007/s10142-024-01319-w] [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: 01/10/2024] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 02/23/2024]
Abstract
Plant diseases pose a severe threat to the food security of the global human population. One such disease is Fusarium wilt, which affects many plant species and causes up to 100% yield losses. Fusarium pathogen has high variability in its genetic constitution; therefore, it has evolved into different physiological races to infect different plant species spread across the different geographical regions of the world. The pathogen mainly affects plant roots, leading to colonizing and blocking vascular bundle cells, specifically xylem vessels. This blocking results in chlorosis, vascular discoloration, leaf wilting, shortening of plant, and, in severe cases, premature plant death. Due to the soil-borne nature of the wilt pathogen, neither agronomic nor plant protection measures effectively reduce the incidence of the disease. Therefore, the most cost-effective management strategy for Fusarium wilt is developing varieties resistant to a particular race of the fungus wilt prevalent in a given region. This strategy requires understanding the pathogen, its disease cycle, and epidemiology with climate-changing scenarios. Hence, in the review, we will discuss the pathogenic aspect and genetics of the Fusarium wilt, including molecular interventions for developing climate-smart wilt tolerant/resistant varieties of crops. Overall, this review will add to our knowledge for advancing the breeding of resistance against the wilt pandemic.
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Affiliation(s)
- Dalpat Lal
- College of Agriculture, Jodhpur, Agriculture University, Jodhpur, 342304, Rajasthan, India
| | - Devanshu Dev
- Department of Plant Pathology, Bihar Agricultural University, Sabour, 813210, Bhagalpur, Bihar, India
| | - Sarita Kumari
- Department of Agricultural Biotechnology & Molecular Biology, CBS&H, RPCAU-Pusa, Samastipur, India
| | - Saurabh Pandey
- Department of Agriculture, Guru Nanak Dev University, Amritsar, 143005, Punjab, India
| | - Aparna
- Department of Agriculture, Jagan Nath University, Chaksu, Jaipur, India
| | - Nilesh Sharma
- Department of Agriculture, Jagan Nath University, Chaksu, Jaipur, India
| | - Sudha Nandni
- Department of Plant Pathology, PGCA, RPCAU, Pusa, 848125, Samastipur, Bihar, India
| | - Ratnesh Kumar Jha
- Centre for Advanced Studies On Climate Change, RPCAU, Pusa, 848125, Samastipur, Bihar, India
| | - Ashutosh Singh
- Centre for Advanced Studies On Climate Change, RPCAU, Pusa, 848125, Samastipur, Bihar, India.
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Kita K, Uchida M, Arie T, Teraoka T, Kaku H, Kanda Y, Mori M, Arazoe T, Kamakura T. The MAT1 locus is required for microconidia-mediated sexual fertility in the rice blast fungus. FEMS Microbiol Lett 2024; 371:fnae004. [PMID: 38305094 DOI: 10.1093/femsle/fnae004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 12/22/2023] [Accepted: 01/31/2024] [Indexed: 02/03/2024] Open
Abstract
Rice blast fungus (Pyricularia oryzae) is a heterothallic ascomycete that causes the most destructive disease in cultivated rice worldwide. This fungus reproduces sexually and asexually, and its mating type is determined by the MAT1 locus, MAT1-1 or MAT1-2. Interestingly, most rice-infecting field isolates show a loss of female fertility, but the MAT1 locus is highly conserved in female-sterile isolates. In this study, we performed a functional analysis of MAT1 using the CRISPR/Cas9 system in female- and male-fertile isolates and female-sterile (male-fertile) isolates. Consistent with a previous report, MAT1 was essential for sexual reproduction but not for asexual reproduction. Meanwhile, deletion mutants of MAT1-1-1, MAT1-1-2, and MAT1-1-3 exhibited phenotypes different from those of other previously described isolates, suggesting that the function of MAT1-1 genes and/or their target genes in sexual reproduction differs among strains or isolates. The MAT1 genes, excluding MAT1-2-6, retained their functions even in female-sterile isolates, and deletion mutants lead to loss or reduction of male fertility. Although MAT1 deletion did not affect microconidia (spermatia) production, microconidia derived from the mutants could not induce perithecia formation. These results indicated that MAT1 is required for microconidia-mediated male fertility in addition to female fertility in P. oryzae .
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Affiliation(s)
- Kohtetsu Kita
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 2788510, Japan
| | - Momotaka Uchida
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 2788510, Japan
| | - Tsutomu Arie
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology (TUAT), 3-5-8 Saiwai-cho, Fuchu, Tokyo 1830054, Japan
| | - Tohru Teraoka
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology (TUAT), 3-5-8 Saiwai-cho, Fuchu, Tokyo 1830054, Japan
| | - Hisatoshi Kaku
- JICA Tsukuba Center, Japan International Coorporation Agency, 3-6 Koyadai, Tsukuba, Ibaraki 3050074, Japan
- Division of Plant Molecular Regulation Research, Institute of Agrobiological Sciences, NARO (NIAS), 2-1-2 Kan-nondai, Tsukuba, Ibaraki 3058602, Japan
| | - Yasukazu Kanda
- Division of Plant Molecular Regulation Research, Institute of Agrobiological Sciences, NARO (NIAS), 2-1-2 Kan-nondai, Tsukuba, Ibaraki 3058602, Japan
| | - Masaki Mori
- Division of Plant Molecular Regulation Research, Institute of Agrobiological Sciences, NARO (NIAS), 2-1-2 Kan-nondai, Tsukuba, Ibaraki 3058602, Japan
| | - Takayuki Arazoe
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 2788510, Japan
| | - Takashi Kamakura
- Department of Applied Biological Science, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 2788510, Japan
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