1
|
Qiu J, Gu H, Wang S, Ji F, He C, Jiang C, Shi J, Liu X, Shen G, Lee YW, Xu J. A diverse Fusarium community is responsible for contamination of rice with a variety of Fusarium toxins. Food Res Int 2024; 195:114987. [PMID: 39277249 DOI: 10.1016/j.foodres.2024.114987] [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: 05/28/2024] [Revised: 07/30/2024] [Accepted: 08/21/2024] [Indexed: 09/17/2024]
Abstract
Rice plays an important role in the daily diet in China and therefore its quality and safety have been of great concern. However, few systematic studies have investigated Fusarium community and toxins in rice grains. Here, we collected 1381 rice samples from Jiangsu Province in eastern China and found a higher frequency of zearalenone (ZEN), deoxynivalenol (DON), fumonisins (FBs), and beauvericin (BEA). The positive samples were individually contaminated with a minimum of one and a maximum of ten toxins. Fusarium was isolated and identified as the major fungus, which exhibited temporal and geographical distribution. The most prevalent species complexes within this genus were Fusarium incarnatum-equiseti species complex (FIESC), Fusarium fujikuroi species complex (FFSC), and Fusarium sambucinum species complex (FSAMSC). Nevertheless, the amplicon sequence analysis revealed a low relative abundance of Fusarium in the rice panicles, and the fungal community exhibited an irregular change along with the symptom's emergence. In vitro toxigenic profiles of Fusarium strains showed significant complexity and specificity depending on the type and content. FIESC strains were non-pathogenic to wheat heads and weakly pathogenic to maize ears, respectively, accumulating lower amounts of toxins than F. asiaticum and F. fujikuroi. There was no significant variation in the ability to cause panicle blight in rice among the various species tested. Our study provides detailed information about the contamination of Fusarium toxins and community in rice after harvest. This information is valuable for understanding the relationship between Fusarium and rice and for developing effective control strategies.
Collapse
Affiliation(s)
- Jianbo Qiu
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Hui Gu
- School of Ocean Food and Biological Engineering, Jiangsu Ocean University, Lianyungang 222005, China
| | - Shufang Wang
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Fang Ji
- College of Tea and Food Science and Technology, Jiangsu Vocational College Agriculture and Forestry, Zhenjiang 212400, China
| | - Can He
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Can Jiang
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Jianrong Shi
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xin Liu
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Guanghui Shen
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yin-Won Lee
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Department of Agricultural Biotechnology, Seoul National University, Seoul 08826, Republic of Korea
| | - Jianhong Xu
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| |
Collapse
|
2
|
da Silva Santos AC, Pedroso SKB, Alves AL, Diniz AG, de Oliveira NT, Tiago PV. Fusarium species associated with citrus blackfly ( Aleurocanthus woglumi) from an agroecological polyculture in Brazil, including an augmented description of F. volatile. Mycologia 2024; 116:92-105. [PMID: 38079330 DOI: 10.1080/00275514.2023.2283944] [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: 05/31/2023] [Accepted: 11/10/2023] [Indexed: 01/23/2024]
Abstract
The objectives of this study were to report Fusarium species associated with Aleurocanthus woglumi (Hemiptera: Aleyrodidae) collected from citrus leaves from an agroecological polyculture in Brazil, assess sexual reproductive mode of the species with unknown sexual stages, and provide an augmented description of F. volatile, for which we discovered a sexual stage. Nineteen Fusarium isolates were recovered from A. woglumi. These fungi belong to three species complexes, i.e., the F. chlamydosporum species complex (FCSC), the F. fujikuroi species complex (FFSC), and the F. incarnatum-equiseti species complex (FIESC). Based on multilocus phylogenetic analyses, the species were identified as F. annulatum, F. chlamydosporum, F. pernambucanum, F. sulawesiense, F. verticillioides, and F. volatile. Our results suggest that three species whose sexual stages are unknown (F. chlamydosporum, F. sulawesiense, and F. volatile) are also heterothallic. Intraspecific crosses of F. sulawesiense and F. volatile produced protoperithecia, whereas 66.7% of F. volatile crosses produced fertile perithecia. We provide an augmented description of the latter species to include characteristics of its sexual morph and those observed in the asexual morph that had not yet been described for the species. This study highlights the potential of researching insect-associated fungi to increase knowledge about the diversity, taxonomy, and versatility of Fusarium in ecosystems.
Collapse
Affiliation(s)
- Ana Carla da Silva Santos
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, 50670901, Brazil
| | - Sheila Karine Belo Pedroso
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, 50670901, Brazil
| | - Amanda Lucia Alves
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, 50670901, Brazil
| | - Athaline Gonçalves Diniz
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, 50670901, Brazil
| | - Neiva Tinti de Oliveira
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, 50670901, Brazil
| | - Patricia Vieira Tiago
- Departamento de Micologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rego 1235, Cidade Universitária, Recife, 50670901, Brazil
| |
Collapse
|
3
|
Sun Q, Zhang SL, Xie YJ, Xu MT, Herrera-Balandrano DD, Chen X, Wang SY, Shi XC, Laborda P. Identification of New Fusarium sulawense Strains Causing Soybean Pod Blight in China and Their Control Using Carbendazim, Dipicolinic Acid and Kojic Acid. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10531. [PMID: 36078255 PMCID: PMC9518069 DOI: 10.3390/ijerph191710531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/21/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Soybean plants are highly susceptible to Fusarium species, which significantly reduce soybean production and quality. Several Fusarium species have been reported to synthesize mycotoxins, such as trichothecene, which have been related to major human diseases. In November 2021, soybean pods in Nantong municipality, China, showed black necrotic lesions during the harvest stage. The disease incidence reached 69%. The pathogen was identified as Fusarium sulawense via morphological analysis and sequencing of ITS, EF1-α and RPB2 genes. A PCR assay with primers targeting the trichothecene biosynthesis genes suggested that the three isolates could synthesize trichothecenes. The effectiveness of fungicide carbendazim and natural metabolites dipicolinic acid and kojic acid was screened for the management of F. sulawense on postharvest soybean pods. The highest efficacy was obtained when combining 3.8 mg/mL carbendazim and 0.84 mg/mL dipicolinic acid (curative efficacy: 49.1% lesion length inhibition; preventive efficacy: 82.7% lesion length inhibition), or 1.9 mg/mL carbendazim and 0.71 mg/mL kojic acid (preventive efficacy: 84.9% lesion length inhibition). Collectively, this report will lead to a better understanding of the safety hazards found in soybean products in China and reveals the application of dipicolinic and kojic acids to reduce the use of carbendazim.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Su-Yan Wang
- School of Life Sciences, Nantong University, Nantong 226019, China
| | - Xin-Chi Shi
- School of Life Sciences, Nantong University, Nantong 226019, China
| | - Pedro Laborda
- School of Life Sciences, Nantong University, Nantong 226019, China
| |
Collapse
|