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Development of Latex Microsphere-Based Immunochromatographic Strips for Detecting Key Aflatoxins SCIE
期刊论文 | 2025 , 17 (9) | TOXINS
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Due to the severe hazard of aflatoxins (AFs) to humans, it is of great significance to detect the key aflatoxins, aflatoxin B-1 (AFB(1)) and aflatoxin G(1) (AFG(1)), in food and feed in simple, rapid, and semi-quantitative ways. The hybridoma clone 3A1 was prepared in this study, and anti-AFB(1) monoclonal antibody (mAb) with high specificity and affinity (9.38 x 10(8) L/mol) from 3A1 was purified. The indirect competitive enzyme-linked immunosorbent assay (ic-ELISA) demonstrated that the linear detection range for AFB(1) was 0.029-1.526 ng/mL with a limits of determination (LOD) of 0.023 ng/mL. A latex microsphere-based immunochromatographic test strip (LM-ICTS) was constructed based on 3A1, which showed that the strip could detect AFB(1) (LOD: lower than 1.79 ng/mL) and AFG(1) (LOD: lower than 8.08 ng/mL), and the linear detection ranges for AFB(1) and AFG(1) are 1.79-48.46 ng/mL and 8.08-107.40 ng/mL, respectively. The average recoveries of intra-assay and inter-assay for peanuts were (98.4 +/- 4.7)% and (92.6 +/- 7.6)%, and the average coefficient of variation (CVs) were 4.38% and 8.15%, respectively. For sunflower seeds, the intra-assay and inter-assay recoveries were (94.4 +/- 7.2)% and (89.2 +/- 4.3)%, and the average CVs were 6.6% and 4.9%, respectively. In summary, the developed LM-ICTS exhibited excellent sensitivity and specificity, which provided a rapidly stable on-site detection choice for AFB(1) and AFG(1) to contaminated agricultural samples, including grain and feed.

Keyword :

AFB(1) AFB(1) AFG(1) AFG(1) hybridoma hybridoma immunochromatographic test strip immunochromatographic test strip latex microsphere latex microsphere

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GB/T 7714 Wang, Jie , Fu, Wangzhuo , Ma, Xuezhen et al. Development of Latex Microsphere-Based Immunochromatographic Strips for Detecting Key Aflatoxins [J]. | TOXINS , 2025 , 17 (9) .
MLA Wang, Jie et al. "Development of Latex Microsphere-Based Immunochromatographic Strips for Detecting Key Aflatoxins" . | TOXINS 17 . 9 (2025) .
APA Wang, Jie , Fu, Wangzhuo , Ma, Xuezhen , Chen, Lin , Song, Weitao , Ling, Sumei et al. Development of Latex Microsphere-Based Immunochromatographic Strips for Detecting Key Aflatoxins . | TOXINS , 2025 , 17 (9) .
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STA regulates succinylated AflM triggered by SCS to contribute to aflatoxin biosynthesis through the Ach1 SCIE
期刊论文 | 2025 , 16 (1) | VIRULENCE
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Aspergillus flavus and its secondary metabolites, aflatoxins (AFs), especially aflatoxin B1 (AFB1), seriously affect agricultural production, food storage, and human health. Succinyl-CoA synthase ADP-forming subunit beta (SCS) is involved in the synthesis of succinate from succinyl-CoA in the tricarboxylic acid cycle. In this study, we demonstrated that SCS led to decreased aflatoxin production. Bioassay results showed that deletion of sucB (the gene coding for SCS) led to increased succinyl-CoA accumulation. Catalyzed by succinyl transferase (STA), the increased amount of succinyl-CoA in Delta sucB leads to increased levels of global protein succinylation, which causes upregulation of AFB1 accumulation in Delta sucB. To elucidate the mechanism of increased AFB1 accumulation in Delta sucB, the relevant enzymes and metabolites involved in the aflatoxin biosynthesis pathway were examined through proteome and metabolome analyses. These data illustrate that the deletion of sucB results in an increase in (1'S, 5'S) - averufin catalyzed by AflK, (1'S)-averantin catalyzed by AflD, and aflatoxin G2/O- methylsterigmatocystin catalyzed by AflP. We also found that AflM is not only upregulated but also succinylated in Delta sucB; Ach1 (acetyl-CoA hydrolase, Ach1) is downregulated in Delta sucB and interacts with SCS. Therefore, we deduce a pathway of Ach1/STA-SCS-succinylated AflM for AFB1 biosynthesis, which provides knowledge for the control of A. flavus and AFs.

Keyword :

aflatoxin B1 aflatoxin B1 Aspergillus flavus Aspergillus flavus development development succinylation level succinylation level succinyl-CoA synthetase succinyl-CoA synthetase

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GB/T 7714 Xie, Rui , Zhuang, Zhenhong , Chen, Qionghui et al. STA regulates succinylated AflM triggered by SCS to contribute to aflatoxin biosynthesis through the Ach1 [J]. | VIRULENCE , 2025 , 16 (1) .
MLA Xie, Rui et al. "STA regulates succinylated AflM triggered by SCS to contribute to aflatoxin biosynthesis through the Ach1" . | VIRULENCE 16 . 1 (2025) .
APA Xie, Rui , Zhuang, Zhenhong , Chen, Qionghui , Xie, Chunlan , Adejor, John , Nie, Xinyi et al. STA regulates succinylated AflM triggered by SCS to contribute to aflatoxin biosynthesis through the Ach1 . | VIRULENCE , 2025 , 16 (1) .
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Molecular Mechanism of Aflatoxin B1 Synthesis Related AfVerB Regulating the Development, AFB1 Biosyntheis and Virulence of Aspergillus flavus Mainly Through Its CYP Domain SCIE
期刊论文 | 2025 , 11 (4) | JOURNAL OF FUNGI
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Aspergillus flavus and its secondary metabolites aflatoxins pose a significant threat to the health of humans, animals, and plants. Therefore, there is an urgent need to control A. flavus contamination. AfverB plays a key role in the aflatoxin gene cluster; however, its function and mechanism in fungal development and virulence remain poorly understood. In this study, we constructed afVerB gene deletion mutants (triangle afVerB-1 and triangle afVerB-2) and two CYP domain mutants (afVerB(triangle D1) and afVerB(triangle D2)) through homologous recombination. Phenotype analysis revealed that, via its two CYP domains, AfVerB is deeply involved in fungal morphogenesis and aflatoxin synthesis. Insect and crop colonization models revealed that AfVerB plays a key role in the fungus's ability to infect hosts, and stress experiments discovered that AfVerB plays a significant role in the response to various environmental stresses, which explains why AfVerB is a key factor in fungal infection to some extent. RT-qPCR analysis demonstrated that AfVerB performs its bio-function through corresponding regulatory factors. We ultimately discovered that AfVerB is deeply involved in cell membrane stress stability, thereby participating in the regulation of fungal drug resistance (sensitive to AMB and resistant to VOR in this study). The CYP domain of AfVerB, particularly its second CYP domain, is crucial for the execution of its biological functions. This study elucidated the regulatory mechanisms by which AfVerB regulates fungal pathogenicity and aflatoxin biosynthesis, providing potential strategies for controlling A. flavus and its aflatoxin contamination.

Keyword :

AFB(1) AFB(1) AfVerB AfVerB Aspergillus flavus Aspergillus flavus CYP domain CYP domain fungal drug resistance fungal drug resistance

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GB/T 7714 Ye, Kangfu , Zhou, Song , Wu, Dandan et al. Molecular Mechanism of Aflatoxin B1 Synthesis Related AfVerB Regulating the Development, AFB1 Biosyntheis and Virulence of Aspergillus flavus Mainly Through Its CYP Domain [J]. | JOURNAL OF FUNGI , 2025 , 11 (4) .
MLA Ye, Kangfu et al. "Molecular Mechanism of Aflatoxin B1 Synthesis Related AfVerB Regulating the Development, AFB1 Biosyntheis and Virulence of Aspergillus flavus Mainly Through Its CYP Domain" . | JOURNAL OF FUNGI 11 . 4 (2025) .
APA Ye, Kangfu , Zhou, Song , Wu, Dandan , Ma, Dongmei , Yao, Yanfang , Yang, Chi et al. Molecular Mechanism of Aflatoxin B1 Synthesis Related AfVerB Regulating the Development, AFB1 Biosyntheis and Virulence of Aspergillus flavus Mainly Through Its CYP Domain . | JOURNAL OF FUNGI , 2025 , 11 (4) .
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Succinylated acetyl-CoA carboxylase contributes to aflatoxin biosynthesis, morphology development, and pathogenicity in Aspergillus flavus SCIE
期刊论文 | 2024 , 413 | INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
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Acetyl-CoA carboxylase (ACC), which catalyzes acetyl-CoA to produce malonyl-CoA, is crucial for the synthesis of mycotoxins, ergosterol, and fatty acids in various genera. However, its biofunction in Aspergillus flavus has not been reported. In this study, the accA gene was deleted and site-mutated to explore the influence of ACC on sporulation, sclerotium formation, and aflatoxin B1 (AFB1) biosynthesis. The results revealed that ACC positively regulated conidiation and sclerotium formation, but negatively regulated AFB1 production. In addition, we found that ACC is a succinylated protein, and mutation of lysine at position 990 of ACC to glutamic acid or arginine (accAK990E or accAK990R) changed the succinylation level of ACC. The accAK990E and accAK990R mutations (to imitate the succinylation and desuccinylation at K990 of ACC, respectively) downregulated fungal conidiation and sclerotium formation while increasing AFB1 production, revealing that the K990 is an important site for ACC's biofunction. These results provide valuable perspectives for future mechanism studies of the emerging roles of succinylated ACC in the regulation of the A. flavus phenotype, which is advantageous for the prevention and control of A. flavus hazards.

Keyword :

Acetyl-CoA carboxylase Acetyl-CoA carboxylase Aflatoxin Aflatoxin Aspergillus flavus Aspergillus flavus Pathogenicity Pathogenicity Succinylation Succinylation

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GB/T 7714 Xie, Rui , Zhang, Bei , Tumukunde, Elisabeth et al. Succinylated acetyl-CoA carboxylase contributes to aflatoxin biosynthesis, morphology development, and pathogenicity in Aspergillus flavus [J]. | INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY , 2024 , 413 .
MLA Xie, Rui et al. "Succinylated acetyl-CoA carboxylase contributes to aflatoxin biosynthesis, morphology development, and pathogenicity in Aspergillus flavus" . | INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY 413 (2024) .
APA Xie, Rui , Zhang, Bei , Tumukunde, Elisabeth , Zhuang, Zhenhong , Yuan, Jun , Wang, Shihua . Succinylated acetyl-CoA carboxylase contributes to aflatoxin biosynthesis, morphology development, and pathogenicity in Aspergillus flavus . | INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY , 2024 , 413 .
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Screening and Characterization of a New Iflavirus Virus in the Fruit Tree Pest Pyrops candelaria SCIE
期刊论文 | 2024 , 15 (8) | INSECTS
WoS CC Cited Count: 1
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Simple Summary: The homopteran insect, Pyrops candelaria (longan lanternfly), mainly harms longan trees, lychees, olives and other crops by absorbing the sap on the trunk. In this study, the reverse etiology method was used to find the pathogens carried by P. candelaria. Through RNA-seq, we found a new iflavirus in P. candelaria, which was first reported in P. candelaria, and we named it PyCaV (Pyrops candelaria associated virus). Identified by a pair of specific primers, it is worth noting that the presence of PyCaV can be identified in the head, chest and abdomen of P. candelaria, and that PyCaV infection rate of P. candelaria is affected by time and location. The above results provide new insights to reveal the role of P. candelaria as a potential vehicle for microbial pathogens and extend our understanding to iflavirus. Pyrops candelaria is one of the common pests of fruit trees, but the research on the pathogenic microorganisms it may carry is very limited. Therefore, it is essential to reveal the pathogenic microbes it carries and their potential hazards. This study found a new virus from the transcriptome of P. candelaria, which was first reported in P. candelaria and named PyCaV (Pyrops candelaria associated virus). RACE and bioinformatics assay revealed that the full length of PyCaV is 10,855 bp with the polyA tail, containing a single open-reading frame (ORF) encoding a polyprotein consisting of 3171 amino acid (aa). The virus has a typical iflavirus structure, including two rhv domains, an RNA helicase domain (HEL), a 3C cysteine protease domain (Pro), and an RNA-dependent RNA polymerase domain (RdRp). Further phylogenetic analysis revealed that this virus belongs to family Iflaviridae and sequence alignments analysis suggested PyCaV is a new member in an unassigned genus of family Iflaviridae. Further in-depth analysis of the virus infection showed that PyCaV is distributed throughout the whole P. candelaria, including its head, chest, and abdomen, but more PyCaV was identified in the chest. The distribution of PyCaV in different parts of P. candelaria was further explored, which showed that more PyCaV was detected in its piercing-sucking mouthparts and chest viscera. Statistical analysis showed that the PyCaV infection was affected by time and location.

Keyword :

distribution distribution iflavirus iflavirus insect insect Pyrops candelaria Pyrops candelaria virus virus

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GB/T 7714 Lin, Hong , Song, Weitao , Ma, Dongmei et al. Screening and Characterization of a New Iflavirus Virus in the Fruit Tree Pest Pyrops candelaria [J]. | INSECTS , 2024 , 15 (8) .
MLA Lin, Hong et al. "Screening and Characterization of a New Iflavirus Virus in the Fruit Tree Pest Pyrops candelaria" . | INSECTS 15 . 8 (2024) .
APA Lin, Hong , Song, Weitao , Ma, Dongmei , Yang, Chi , Yao, Yanfang , Liu, Renyi et al. Screening and Characterization of a New Iflavirus Virus in the Fruit Tree Pest Pyrops candelaria . | INSECTS , 2024 , 15 (8) .
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组蛋白甲基转移酶Set2通过SntB触发的抗氧化途径调节黄曲霉中AFB1的生物合成(英文)
会议论文 | 2024 | 中国菌物学会2024年学术年会
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Aspergillus flavus infects various crops with aflatoxins,and leads to aspergillosis opportunistically.It is important to discover the elusive regulatory mechanism underlying the virulence of A.flavus.Our study revealed that the Set2 histone methyltransferase family,AshA and SetB,involves in morphogenesis and mycotoxin anabolism.Further ChIP-seq analysis found that Set2 histone methyltransferase regulates fungal development and aflatoxin biosynthesis by regulating related transcriptional factors,including the chromatin region of the sntB,an important transcriptional regulator.Then,sntB gene deletion(ΔsntB),complementary(Com-sntB),and HA tag fused to sntB(sntB-HA) strains were constructed by using the homologous recombination method,respectively.The results revealed that deletion of sntB inhibited the processes of mycelia growth,conidial production,sclerotia formation,aflatoxin synthesis,and ability to colonize host compared to wild type(WT),and the defective phenotype of knockout strain ΔsntB could be restored...

Keyword :

AshA AshA Aspergillus flavus Aspergillus flavus CatC CatC oxidative response oxidative response SetB SetB SntB SntB

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GB/T 7714 吴丹丹 , 杨驰 , 潘晓华 et al. 组蛋白甲基转移酶Set2通过SntB触发的抗氧化途径调节黄曲霉中AFB1的生物合成(英文) [C] //中国菌物学会2024年学术年会 . 2024 .
MLA 吴丹丹 et al. "组蛋白甲基转移酶Set2通过SntB触发的抗氧化途径调节黄曲霉中AFB1的生物合成(英文)" 中国菌物学会2024年学术年会 . (2024) .
APA 吴丹丹 , 杨驰 , 潘晓华 , 汪世华 , 庄振宏 . 组蛋白甲基转移酶Set2通过SntB触发的抗氧化途径调节黄曲霉中AFB1的生物合成(英文) 中国菌物学会2024年学术年会 . (2024) .
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SntB triggers the antioxidant pathways to regulate development and aflatoxin biosynthesis in Aspergillus flavus ESCI
期刊论文 | 2024 , 13 | ELIFE
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The epigenetic reader SntB was identified as an important transcriptional regulator of growth, development, and secondary metabolite synthesis in Aspergillus flavus. However, the underlying molecular mechanism is still unclear. In this study, by gene deletion and complementation, we found SntB is essential for mycelia growth, conidial production, sclerotia formation, aflatoxin synthesis, and host colonization. Chromatin immunoprecipitation sequencing (ChIP-seq) and RNA sequencing (RNA-seq) analysis revealed that SntB played key roles in oxidative stress response of A. flavus, influencing related gene activity, especially catC encoding catalase. SntB regulated the expression activity of catC with or without oxidative stress, and was related to the expression level of the secretory lipase (G4B84_008359). The deletion of catC showed that CatC participated in the regulation of fungal morphogenesis, reactive oxygen species (ROS) level, and aflatoxin production, and that CatC significantly regulated fungal sensitive reaction and AFB1 yield under oxidative stress. Our study revealed the potential machinery that SntB regulated fungal morphogenesis, mycotoxin anabolism, and fungal virulence through the axle of from H3K36me3 modification to fungal virulence and mycotoxin biosynthesis. The results of this study shed light into the SntB-mediated transcript regulation pathways of fungal mycotoxin anabolism and virulence, which provided potential strategy to control the contamination of A. flavus and its aflatoxins.

Keyword :

Aspergillus flavus Aspergillus flavus CatC CatC ChIP-seq ChIP-seq Other Other RNA-seq RNA-seq SntB SntB

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GB/T 7714 Wu, Dandan , Yang, Chi , Yao, Yanfang et al. SntB triggers the antioxidant pathways to regulate development and aflatoxin biosynthesis in Aspergillus flavus [J]. | ELIFE , 2024 , 13 .
MLA Wu, Dandan et al. "SntB triggers the antioxidant pathways to regulate development and aflatoxin biosynthesis in Aspergillus flavus" . | ELIFE 13 (2024) .
APA Wu, Dandan , Yang, Chi , Yao, Yanfang , Ma, Dongmei , Lin, Hong , Hao, Ling et al. SntB triggers the antioxidant pathways to regulate development and aflatoxin biosynthesis in Aspergillus flavus . | ELIFE , 2024 , 13 .
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Regulation of Fungal Morphogenesis and Pathogenicity of Aspergillus flavus by Hexokinase AfHxk1 through Its Domain Hexokinase_2 SCIE
期刊论文 | 2023 , 9 (11) | JOURNAL OF FUNGI
WoS CC Cited Count: 3
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As a filamentous pathogenic fungus with high-yield of aflatoxin B1, Aspergillus flavus is commonly found in various agricultural products. It is crucial to develop effective strategies aimed at the prevention of the contamination of A. flavus and aflatoxin. Hexokinase AfHxk1 is a critical enzyme in fungal glucose metabolism. However, the role of AfHxk1 in A. flavus development, aflatoxin biosynthesis, and virulence has not yet been explored. In this study, afHxk1 gene deletion mutant (Delta afHxk1), complementary strain (Com-afHxk1), and the domain deletion strains (afHxk1(Delta D1) and afHxk1(Delta D2)) were constructed by homologous recombination. Phenotype study and RT-qPCR revealed that AfHxk1 upregulates mycelium growth and spore and sclerotia formation, but down regulates AFB1 biosynthesis through related classical signaling pathways. Invading models and environmental stress analysis revealed that through involvement in carbon source utilization, conidia germination, and the sensitivity response of A. flavus to a series of environmental stresses, AfHxk1 deeply participates in the regulation of pathogenicity of A. flavus to crop kernels and Galleria mellonella larvae. The construction of domain deletion strains, afHxk1(Delta D1) and afHxk1(Delta D2), further revealed that AfHxk1 regulates the morphogenesis, mycotoxin biosynthesis, and the fungal pathogenicity mainly through its domain, Hexokinase_2. The results of this study revealed the biological role of AfHxk1 in Aspergillus spp., and might provide a novel potential target for the early control of the contamination of A. flavus.

Keyword :

AFB(1) AFB(1) AfHxk1 AfHxk1 Aspergillus flavus Aspergillus flavus crop kernels crop kernels Galleria mellonella Galleria mellonella

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GB/T 7714 Huang, Zongting , Wu, Dandan , Yang, Sile et al. Regulation of Fungal Morphogenesis and Pathogenicity of Aspergillus flavus by Hexokinase AfHxk1 through Its Domain Hexokinase_2 [J]. | JOURNAL OF FUNGI , 2023 , 9 (11) .
MLA Huang, Zongting et al. "Regulation of Fungal Morphogenesis and Pathogenicity of Aspergillus flavus by Hexokinase AfHxk1 through Its Domain Hexokinase_2" . | JOURNAL OF FUNGI 9 . 11 (2023) .
APA Huang, Zongting , Wu, Dandan , Yang, Sile , Fu, Wangzhuo , Ma, Dongmei , Yao, Yanfang et al. Regulation of Fungal Morphogenesis and Pathogenicity of Aspergillus flavus by Hexokinase AfHxk1 through Its Domain Hexokinase_2 . | JOURNAL OF FUNGI , 2023 , 9 (11) .
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Role of RNA Modifications, Especially m6A, in Aflatoxin Biosynthesis of Aspergillus flavus SCIE
期刊论文 | 2023 , 72 (1) , 726-741 | JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
WoS CC Cited Count: 6
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RNA modifications play key roles in eukaryotes, but the functions in Aspergillus flavus are still unknown. Temperature has been reported previously to be a critical environmental factor that regulates the aflatoxin production of A. flavus, but much remains to be learned about the molecular networks. Here, we demonstrated that 12 kinds of RNA modifications in A. flavus were significantly changed under 29 degrees C compared to 37 degrees C incubation; among them, m6A was further verified by a colorimetric method. Then, the transcriptome-wide m6A methylome and m6A-altered genes were comprehensively illuminated through methylated RNA immunoprecipitation sequencing and RNA sequencing, from which 22 differentially methylated and expressed transcripts under 29 degrees C were screened out. It is especially notable that AFCA_009549, an aflatoxin biosynthetic pathway gene (aflQ), and the m6A methylation of its 332nd adenine in the mRNA significantly affect aflatoxin biosynthesis in A. flavus both on media and crop kernels. The content of sterigmatocystin in both Delta aflQ and aflQ(A332C) strains was significantly higher than that in the WT strain. Together, these findings reveal that RNA modifications are associated with secondary metabolite biosynthesis of A. flavus.

Keyword :

aflatoxin aflatoxin aflQ aflQ Aspergillus flavus Aspergillus flavus m6A m6A RNAmodifications RNAmodifications temperature temperature

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GB/T 7714 Yang, Chi , Wu, Dandan , Lin, Hong et al. Role of RNA Modifications, Especially m6A, in Aflatoxin Biosynthesis of Aspergillus flavus [J]. | JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY , 2023 , 72 (1) : 726-741 .
MLA Yang, Chi et al. "Role of RNA Modifications, Especially m6A, in Aflatoxin Biosynthesis of Aspergillus flavus" . | JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 72 . 1 (2023) : 726-741 .
APA Yang, Chi , Wu, Dandan , Lin, Hong , Ma, Dongmei , Fu, Wangzhuo , Yao, Yanfang et al. Role of RNA Modifications, Especially m6A, in Aflatoxin Biosynthesis of Aspergillus flavus . | JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY , 2023 , 72 (1) , 726-741 .
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普城沙雷氏菌ACCC 02146产灵菌红素调控基因的鉴定
期刊论文 | 2023 , 38 (04) , 485-496 | 福建农业学报
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【目的】鉴定影响普城沙雷氏菌ACCC 02146产灵菌红素能力的基因,构建ACCC 02146的转座子突变体文库,为进一步研究普城沙雷氏菌ACCC 02146灵菌红素合成机制奠定基础。【方法】采用平板划线法从菌种保藏中心购买菌株和实验室保藏菌株中获得15株产灵菌红素的菌株。采用16S rRNA基因测序法鉴定各菌株,邻接建树将其分类,并比较不同类别菌株灵菌红素合成基因簇启动子序列差异,观察各菌株产色能力。对16S rDNA序列和灵菌红素合成基因簇启动子序列均有异于其他菌株的普城沙雷氏菌ACCC 02146合成灵菌红素的调控基因展开研究。构建ACCC 02146的转座子突变体文库,筛选出产色能力明显改变的克隆子并鉴定出对应的转座子插入突变基因。【结果】该突变体文库中有74个突变体表现出产灵菌红素能力的变化。其中25个突变体转座子插入发生在pigA、pigB、pigC、pigD和pigH等5个灵菌红素合成簇基因上,49个突变体转座子插入基因为灵菌红素合成基因簇之外的基因。在鉴定到的产色能力改变的突变体中,麦芽糖O-乙酰基转移酶基因突变菌株有6个,二氢乳清酸脱氢酶基因突变菌株有4个,MarR家族转录因子SlyA基因突变体有3个,winged helix家族的双组分转录调控因子RstA基因突变体有3个,H-醌氧化还原酶亚基I基因突变菌株有3个,NADH-醌氧化还原酶G链基因突变菌株有3个,肽基脯氨酰异构酶B基因突变菌株有3个,其他突变基因对应的克隆子数量为1~2个。【结论】在沙雷氏菌中,除了灵菌红素合成簇基因调控灵菌红素合成,推测灵菌红素合成簇外编码相关酶、转录调控因子和一些结构蛋白的基因通过直接或间接途径在不同程度上调控了灵菌红素的合成。

Keyword :

沙雷氏菌 沙雷氏菌 灵菌红素 灵菌红素 突变体库 突变体库 调控基因 调控基因 转座子 转座子

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GB/T 7714 丁霞飞 , 贾宪波 , 林陈强 et al. 普城沙雷氏菌ACCC 02146产灵菌红素调控基因的鉴定 [J]. | 福建农业学报 , 2023 , 38 (04) : 485-496 .
MLA 丁霞飞 et al. "普城沙雷氏菌ACCC 02146产灵菌红素调控基因的鉴定" . | 福建农业学报 38 . 04 (2023) : 485-496 .
APA 丁霞飞 , 贾宪波 , 林陈强 , 庄振宏 , 陈济琛 . 普城沙雷氏菌ACCC 02146产灵菌红素调控基因的鉴定 . | 福建农业学报 , 2023 , 38 (04) , 485-496 .
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