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学者姓名:鲁国东

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Golgi-associated retrograde protein (GARP) complex recruits retromer to trans-Golgi network for FgKex2 and FgSnc1 recycling, necessary for the development and pathogenicity of Fusarium graminearum SCIE
期刊论文 | 2025 , 246 (2) , 666-688 | NEW PHYTOLOGIST
WoS CC Cited Count: 1
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Abstract :

In eukaryotes, the retromer complex plays a crucial role in the sorting and retrograde transport of cargo proteins from endosomes to the trans-Golgi network (TGN). Despite its importance, the molecular details of this intracellular transport process remain unclear. Here, we have identified a Golgi-associated retrograde protein (GARP) complex as a mediator of vesicle transport that facilitates the recruitment of the retromer complex to the TGN to exert its functions. The GARP complex is mainly localized in the TGN where it interacts with the retromer complex. This interaction is evolutionarily conserved across species. Furthermore, we identified FgKex2 and FgSnc1 as cargo proteins in the GARP/retromer-mediated recycling pathway. Loss of GARP or retromer results in a complete missorting of FgKex2 and FgSnc1 into the vacuolar degradation pathway, which affects the growth, development, biogenesis of toxisomes and pathogenicity of Fusarium graminearum. In summary, we demonstrate for the first time that GARP promotes the recruitment of retromer from endosomes to the TGN, thereby establishing a GARP/retromer transport pathway that coordinates the recycling of cargo proteins FgKex2 and FgSnc1. This process is essential for maintaining sustained growth and development and significantly contributes to the pathogenicity of F. graminearum.

Keyword :

cargo sorting cargo sorting fungal development fungal development Fusarium graminearum Fusarium graminearum GARP GARP retromer retromer

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GB/T 7714 Long, Yunfei , Chen, Xin , Chen, Jia et al. Golgi-associated retrograde protein (GARP) complex recruits retromer to trans-Golgi network for FgKex2 and FgSnc1 recycling, necessary for the development and pathogenicity of Fusarium graminearum [J]. | NEW PHYTOLOGIST , 2025 , 246 (2) : 666-688 .
MLA Long, Yunfei et al. "Golgi-associated retrograde protein (GARP) complex recruits retromer to trans-Golgi network for FgKex2 and FgSnc1 recycling, necessary for the development and pathogenicity of Fusarium graminearum" . | NEW PHYTOLOGIST 246 . 2 (2025) : 666-688 .
APA Long, Yunfei , Chen, Xin , Chen, Jia , Zhang, Haoran , Lin, Ying , Cheng, Shuyuan et al. Golgi-associated retrograde protein (GARP) complex recruits retromer to trans-Golgi network for FgKex2 and FgSnc1 recycling, necessary for the development and pathogenicity of Fusarium graminearum . | NEW PHYTOLOGIST , 2025 , 246 (2) , 666-688 .
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The Identification of a Unique Gene MoUNG Required for Growth, Conidiation, and Pathogenicity in Magnaporthe oryzae Through T-DNA Insertion Mutagenesis SCIE
期刊论文 | 2025 , 15 (2) | AGRONOMY-BASEL
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Abstract :

Unique genes refer to genes specific to a particular organism and play crucial roles in the biological functions, evolutionary processes, and adaptations to external environments. However, the roles of unique genes in plant pathogenic fungi remain largely unexplored. In this study, we identified a novel unique gene in the rice blast fungus Magnaporthe oryzae, named MoUNG (M. oryzae unique gene), through T-DNA insertion mutagenesis. The disruption of the MoUNG promoter region in the T-DNA insertion mutant (T30-104) led to an almost loss of MoUNG expression. MoUNG has no functional domains and lacks homologues in other organism. It is highly expressed during the early-infection stage between 16 and 32 h post-inoculation (HPI), in contrast to its expression in mycelia and at the later infection stage of 48 HPI. Notably, attempts to knock out MoUNG were unsuccessful, so we examined the T30-104 mutant and found it showed significantly reduced growth, conidiation, and pathogenicity. Introducing the full-length MoUNG with its promoter into T30-104 restored these phenotypic defects. Additionally, subcellular localization assays revealed that MoUNG exhibits a dot-like distribution within the cytoplasm of mycelium, conidium, appressorium, and invasive hypha. Furthermore, knock-down of MoUNG produced results similar to those observed with the insertion mutation. In conclusion, we identified a novel unique gene MoUNG in M. oryzae and demonstrated its involvement in growth, conidiation, and pathogenicity.

Keyword :

functional characterization functional characterization Magnaporthe oryzae Magnaporthe oryzae unique gene MoUNG unique gene MoUNG

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GB/T 7714 Chen, Jing , He, Qingfeng , Xie, Xuze et al. The Identification of a Unique Gene MoUNG Required for Growth, Conidiation, and Pathogenicity in Magnaporthe oryzae Through T-DNA Insertion Mutagenesis [J]. | AGRONOMY-BASEL , 2025 , 15 (2) .
MLA Chen, Jing et al. "The Identification of a Unique Gene MoUNG Required for Growth, Conidiation, and Pathogenicity in Magnaporthe oryzae Through T-DNA Insertion Mutagenesis" . | AGRONOMY-BASEL 15 . 2 (2025) .
APA Chen, Jing , He, Qingfeng , Xie, Xuze , Wu, Yuting , Liu, Shan , Li, Xihong et al. The Identification of a Unique Gene MoUNG Required for Growth, Conidiation, and Pathogenicity in Magnaporthe oryzae Through T-DNA Insertion Mutagenesis . | AGRONOMY-BASEL , 2025 , 15 (2) .
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Recycling of Trans-Golgi SNAREs Promotes Apoplastic Effector Secretion for Effective Host Invasion in Magnaporthe oryzae SCIE
期刊论文 | 2025 , 48 (8) , 6047-6065 | PLANT CELL AND ENVIRONMENT
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Abstract :

Vesicle transport is crucial for pathogenic fungi, but the mechanisms that control the secretion of effector proteins are not yet fully understood. Here, we have uncovered a novel pathway in which retromer and trans-Golgi (TGN) SNARE proteins co-regulate the proper secretion of apoplastic effectors in Magnaporthe oryzae. It was found that a TGN-associated SNARE complex, consisting of MoSnc1, MoTlg1, MoTlg2 and MoVti1, is critical for growth, development and pathogenicity in the fungus. In addition, the TGN-associated SNARE complex is indispensable for the proper secretion of apoplastic effectors. Furthermore, we found that the dynamin-like protein MoVps1, an upstream regulator of the retromer complex, regulates the fission of MoVps35-coated vesicles and the proper localisation of the TGN-associated SNARE complex. Additionally, treatment with perphenazine, a potent dynamin inhibitor, perturbs the fungal developmental similar to MoVPS1 disruption, highlighting the central regulatory role of dynamin in M. oryzae and suggesting the potential efficacy the control and management of the rice blast. Taken together, the study uncovered a specific mechanism by which MoVps1 and the retromer complex co-regulate the positioning of TGN-associated SNARE proteins to effectively promote effector secretion. This study widens our horizon on the mechanism of effector secretion in phytopathogenic fungi and underscores the importance of vesicle transport in fungal pathogenesis.

Keyword :

dynamin-like protein dynamin-like protein effector secretion effector secretion Magnaporthe oryzae Magnaporthe oryzae phenothiazine phenothiazine retromer retromer SNARE SNARE trans-Golgi Network trans-Golgi Network

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GB/T 7714 Lin, Lili , Wu, Qiuqiu , Wang, Shuang et al. Recycling of Trans-Golgi SNAREs Promotes Apoplastic Effector Secretion for Effective Host Invasion in Magnaporthe oryzae [J]. | PLANT CELL AND ENVIRONMENT , 2025 , 48 (8) : 6047-6065 .
MLA Lin, Lili et al. "Recycling of Trans-Golgi SNAREs Promotes Apoplastic Effector Secretion for Effective Host Invasion in Magnaporthe oryzae" . | PLANT CELL AND ENVIRONMENT 48 . 8 (2025) : 6047-6065 .
APA Lin, Lili , Wu, Qiuqiu , Wang, Shuang , Gong, Qing , Huang, Xiuwei , Abubakar, Yakubu Saddeeq et al. Recycling of Trans-Golgi SNAREs Promotes Apoplastic Effector Secretion for Effective Host Invasion in Magnaporthe oryzae . | PLANT CELL AND ENVIRONMENT , 2025 , 48 (8) , 6047-6065 .
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A novel galactoglucan from Ganoderma lucidum ameliorates ethanol-induced gastric ulcers by modulating FAK-MAPK signaling pathway SCIE
期刊论文 | 2025 , 360 | CARBOHYDRATE POLYMERS
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Abstract :

Gastric ulcer (GU) is a prevalent gastrointestinal disorder that significantly impacts patients' quality of life. Current treatments, including proton pump inhibitors and H2 receptor antagonists, often present limitations such as adverse side effects and incomplete healing, highlighting the urgent need for new therapeutic agents. Ganoderma lucidum polysaccharide peptides (GL-PP) have gained attention for their potential gastroprotective properties. Notably, we characterized a novel GL-PP named GL-PPQ3, assessing its efficacy in alleviating GUs using an ethanol-induced GU mouse. Our findings indicated that GL-PPQ3 is a hyperbranched galactoglucan with a molecular weight of 41.08 kDa, predominantly composed of glucose and galactose. Comprehensive analysis, including methylation and one-dimensional and two-dimensional nuclear magnetic resonance (NMR), elucidated its structural composition, revealing the presence of 1,6-alpha-D-Galp, 1,2,6-alpha-D-Galp, 1,6-(3-D-Glcp, 1,3,6-(3-D-Glcp, and 1,4-(3-D-Glcp residues. X-ray diffraction (XRD) confirmed a predominantly amorphous structure and scanning electron microscopy (SEM) displayed aggregated spherical formations. Mechanistically, GL-PPQ3 exhibited its Gastroprotective effects through the regulation of the FAK-mediated MAPK signaling pathway. This study underscores the therapeutic potential of GL-PPQ3 as a promising candidate for GU treatment, paving the way for developing novel functional agents derived from natural sources.

Keyword :

Apoptosis Apoptosis Focal adhesion kinase Focal adhesion kinase Ganoderma lucidum polysaccharide peptides Ganoderma lucidum polysaccharide peptides Gastric ulcer Gastric ulcer Oxidative stress Oxidative stress Structural characterization Structural characterization

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GB/T 7714 Luo, Hongjian , Zhang, Yukun , Yao, Yang et al. A novel galactoglucan from Ganoderma lucidum ameliorates ethanol-induced gastric ulcers by modulating FAK-MAPK signaling pathway [J]. | CARBOHYDRATE POLYMERS , 2025 , 360 .
MLA Luo, Hongjian et al. "A novel galactoglucan from Ganoderma lucidum ameliorates ethanol-induced gastric ulcers by modulating FAK-MAPK signaling pathway" . | CARBOHYDRATE POLYMERS 360 (2025) .
APA Luo, Hongjian , Zhang, Yukun , Yao, Yang , Zhang, Qiaoling , Lin, Shuqian , Wang, Saizhen et al. A novel galactoglucan from Ganoderma lucidum ameliorates ethanol-induced gastric ulcers by modulating FAK-MAPK signaling pathway . | CARBOHYDRATE POLYMERS , 2025 , 360 .
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OsMbl1 Counteracts OsGdsl1-Mediated Rice Blast Susceptibility by Inhibiting Its Lipase Activity SCIE
期刊论文 | 2025 , 48 (8) , 5650-5663 | PLANT CELL AND ENVIRONMENT
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Abstract :

Plant lectins have a significant impact on the defense against pathogens and insect attacks. The jacalin-related lectin OsMbl1 from rice (Oryza sativa L.) has been reported to play a crucial role in pattern-triggered immunity (PTI). However, the underlying mechanism remains unclear. In this study, we identified a GDSL-like lipase, OsGdsl1, that interacts with OsMbl1 both in vitro and in vivo. The OsGdsl1 protein, which has lipase activity, is localized in the lipid bodies and apoplast. The expression of OsGDSL1 is modulated upon exposure to Magnaporthe oryzae (M. oryzae) or plant hormones. Deletion of the OsGDSL1 gene not only improved the resistance of rice to M. oryzae, but also led to an increased ROS burst after chitin treatments. The expression of some pathogenesis-related (PR) genes was upregulated in the mutants. We also found that OsMbl1 inhibited the lipase activity of OsGdsl1 during infection with M. oryzae. Overall, our results suggest that OsGdsl1 negatively regulates rice immunity to M. oryzae infection by downregulating ROS bursts and PR gene expressions, while its lipase activity, which is inhibited by OsMbl1, contributes to the enhancement of rice innate immunity during M. oryzae infection.

Keyword :

lipase lipase Magnaporthe oryzae Magnaporthe oryzae OsMbl1 OsMbl1 plant immunity plant immunity rice rice

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GB/T 7714 Song, Linlin , Yang, Tao , Abubakar, Yakubu Saddeeq et al. OsMbl1 Counteracts OsGdsl1-Mediated Rice Blast Susceptibility by Inhibiting Its Lipase Activity [J]. | PLANT CELL AND ENVIRONMENT , 2025 , 48 (8) : 5650-5663 .
MLA Song, Linlin et al. "OsMbl1 Counteracts OsGdsl1-Mediated Rice Blast Susceptibility by Inhibiting Its Lipase Activity" . | PLANT CELL AND ENVIRONMENT 48 . 8 (2025) : 5650-5663 .
APA Song, Linlin , Yang, Tao , Abubakar, Yakubu Saddeeq , Han, Yijuan , Zhang, Ruina , Li, Ya et al. OsMbl1 Counteracts OsGdsl1-Mediated Rice Blast Susceptibility by Inhibiting Its Lipase Activity . | PLANT CELL AND ENVIRONMENT , 2025 , 48 (8) , 5650-5663 .
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MoMad2 With a Conserved Function in the Spindle Assembly Checkpoint Is Required for Maintaining Appressorial Turgor Pressure and Pathogenicity of Rice Blast Fungus SCIE
期刊论文 | 2025 , 26 (9) | MOLECULAR PLANT PATHOLOGY
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Mad2, a conserved core component of the spindle assembly checkpoint (SAC) in eukaryotes, delays anaphase onset in case of incorrect kinetochore-microtubule attachment. However, its functions in plant-pathogenic fungi remain largely unknown. Here, we identified the Mad2 homologue in rice blast fungus Magnaporthe oryzae (MoMad2), which shows high similarity with Mad2 in fission yeast. When expressed in fission yeast, MoMad2 associated with native SpMad1 and SpCdc20, and successfully rescued the Delta Spmad2 mutant's defect in arresting anaphase onset upon damaged spindle, indicating the conserved SAC function of MoMad2. Moreover, MoMad2 interacted with MoMad1 and depends on MoMad1 for its nuclear envelope-localisation. Although it plays a dispensable role in M. oryzae growth, MoMad2 is required for tolerance to the microtubule depolymerising agent treatment. Delta Momad2 mutants exhibited shorter hyphal compartments and earlier conidial germination and appressorium formation, suggesting that MoMad2 deletion shortens M. oryzae's mitotic cell cycle due to defective SAC arrest. Additionally, knockout of MoMAD2 decreased the appressorial turgor pressure, impaired appressorium penetration and compromised M. oryzae pathogenicity. Taken together, our findings revealed that MoMad2, as a conserved component in SAC signalling, is essential for full pathogenicity of rice blast fungus.

Keyword :

appressorial turgor appressorial turgor Mad2 Mad2 Magnaporthe oryzae Magnaporthe oryzae pathogenicity pathogenicity spindle assembly checkpoint spindle assembly checkpoint

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GB/T 7714 Shen, Tianjiao , Chen, Qiushi , Leontiou, Ioanna et al. MoMad2 With a Conserved Function in the Spindle Assembly Checkpoint Is Required for Maintaining Appressorial Turgor Pressure and Pathogenicity of Rice Blast Fungus [J]. | MOLECULAR PLANT PATHOLOGY , 2025 , 26 (9) .
MLA Shen, Tianjiao et al. "MoMad2 With a Conserved Function in the Spindle Assembly Checkpoint Is Required for Maintaining Appressorial Turgor Pressure and Pathogenicity of Rice Blast Fungus" . | MOLECULAR PLANT PATHOLOGY 26 . 9 (2025) .
APA Shen, Tianjiao , Chen, Qiushi , Leontiou, Ioanna , Wang, Rong , Su, Meiling , Luo, Qiong et al. MoMad2 With a Conserved Function in the Spindle Assembly Checkpoint Is Required for Maintaining Appressorial Turgor Pressure and Pathogenicity of Rice Blast Fungus . | MOLECULAR PLANT PATHOLOGY , 2025 , 26 (9) .
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A Mycorrhiza-Associated Receptor-like Kinase Regulates Disease Resistance in Rice SCIE
期刊论文 | 2025 , 15 (10) | AGRONOMY-BASEL
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Most terrestrial plants establish symbiotic relationships with microorganisms to acquire nutrients and simultaneously restrict pathogen infection. In rice, the receptor-like kinase OsARK1 is essential for the colonization and development of arbuscular mycorrhizal (AM) fungi. However, whether OsARK1 participates in plant-pathogen interactions remain unknown. Here, we demonstrate that OsARK1 is involved in the transcriptional reprogramming of immune defense-related genes prior to and following AM colonization. Mutation of OsARK1 resulted in increased susceptibility to Magnaporthe oryzae (blast fungus) and Xanthomonas oryzae (bacterial blight). Transcriptomic profiling during blast infection demonstrated OsARK1 coordinates early immune responses; particularly, the upregulation of genes encoding lectin receptor-like kinases (LecRLKs), nucleotide-binding leucine-rich repeat (NLR) immune receptors and secondary metabolism-related genes was significantly impaired in Osark1 mutant. Collectively, OsARK1 acts as a positive regulator of rice immunity against pathogens while fine-tuning defense suppression during beneficial AM symbiosis.

Keyword :

arbuscule mycorrhizal symbiosis arbuscule mycorrhizal symbiosis immunity immunity OsARK1 OsARK1 rice blast disease rice blast disease

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GB/T 7714 Zheng, Zichao , Zou, Ke , Lu, Guodong et al. A Mycorrhiza-Associated Receptor-like Kinase Regulates Disease Resistance in Rice [J]. | AGRONOMY-BASEL , 2025 , 15 (10) .
MLA Zheng, Zichao et al. "A Mycorrhiza-Associated Receptor-like Kinase Regulates Disease Resistance in Rice" . | AGRONOMY-BASEL 15 . 10 (2025) .
APA Zheng, Zichao , Zou, Ke , Lu, Guodong , Wang, Zonghua , Cui, Haitao , Wang, Airong . A Mycorrhiza-Associated Receptor-like Kinase Regulates Disease Resistance in Rice . | AGRONOMY-BASEL , 2025 , 15 (10) .
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Protein Phosphatases MoPtc5, MoPtc1, and MoPtc2 Contribute to the Vegetative Growth, Stress Adaptation, and Virulence of Magnaporthe oryzae SCIE
期刊论文 | 2025 , 11 (3) | JOURNAL OF FUNGI
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Protein phosphatases are crucial enzymes that regulate key cellular processes such as the cell cycle, gene transcription, and translation in eukaryotes. Seven PP2C protein phosphatases have been identified in Magnaporthe oryzae. However, their synergistic roles in the pathology and physiology of M. oryzae remain poorly investigated. By qRT-PCR analysis, we found that PTC1 and PTC2 are significantly upregulated in the PTC5 deletion mutant. The double deletion of the MoPTC5/MoPTC1 and MoPTC5/MoPTC2 genes significantly reduced hyphal growth, conidiophore formation, sporulation, and virulence in M. oryzae. In addition, the double-knockout mutants were increasingly sensitive to different osmotic, oxidative, and cell wall stresses. Western blot analysis revealed that MoPtc5 plays a synergistic function with MoPtc1 and MoPtc2 in the regulation of MoMps1 and MoOsm1 phosphorylation levels. Lastly, appressorium formation and turgor generation were remarkably affected in the Delta Moptc5 Delta Moptc1 and Delta Moptc5 Delta Moptc2 double-deletion mutants. These findings demonstrate the overlapping roles of PP2c protein phosphatase in the fungal development and pathogenesis of M. oryzae.

Keyword :

Magnaporthe oryzae Magnaporthe oryzae pathogenesis pathogenesis protein phosphatases protein phosphatases stress tolerance stress tolerance synergistic synergistic

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GB/T 7714 Biregeya, Jules , Otieno, Frankline Jagero , Chen, Meilian et al. Protein Phosphatases MoPtc5, MoPtc1, and MoPtc2 Contribute to the Vegetative Growth, Stress Adaptation, and Virulence of Magnaporthe oryzae [J]. | JOURNAL OF FUNGI , 2025 , 11 (3) .
MLA Biregeya, Jules et al. "Protein Phosphatases MoPtc5, MoPtc1, and MoPtc2 Contribute to the Vegetative Growth, Stress Adaptation, and Virulence of Magnaporthe oryzae" . | JOURNAL OF FUNGI 11 . 3 (2025) .
APA Biregeya, Jules , Otieno, Frankline Jagero , Chen, Meilian , Mabeche, Anjago Wilfred , Felix, Abah , Aimable, Nsanzinshuti et al. Protein Phosphatases MoPtc5, MoPtc1, and MoPtc2 Contribute to the Vegetative Growth, Stress Adaptation, and Virulence of Magnaporthe oryzae . | JOURNAL OF FUNGI , 2025 , 11 (3) .
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Epigenetic maps of pearl millet reveal a prominent role for CHH methylation in regulating tissue-specific gene expression EI
期刊论文 | 2025 , 6 (3) , 394-410 | aBIOTECH
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Pearl millet (Pennisetum glaucum) is a major staple food in arid and semi-arid regions of sub-Saharan Africa, India, and South Asia. However, how epigenetic mechanisms regulate tissue-specific gene expression in this crop remains poorly understood. In this study, we profiled multiple epigenetic features in the young panicles and roots of pearl millet using RNA-seq, ATAC-seq, whole-genome bisulfite sequencing, and ChIP-seq (H3K4me3 and H3K36me3). We identified thousands of genes that were differentially expressed between these two tissues. Root-specific genes were enriched for plant hormone signaling, oxidative phosphorylation, and stress responses. Analysis of chromatin accessibility revealed that root-specific accessible chromatin regions (ACRs) were enriched in binding motifs for stress-responsive transcription factors (e.g., NAC, WRKY), whereas ACRs in young panicles were enriched in motifs for developmental regulators (e.g., AP2/ERF). DNA methylation profiling revealed 25,141 tissue-specific differentially methylated regions, with CHH methylation—rather than CG or CHG methylation—showing the strongest tissue specificity. Promoters of root-specific genes had higher levels of CHH methylation compared to those of young panicle–specific genes, suggesting that the roles of CHH methylation in regulating transcription might be tissue dependent. Notably, promoter-associated H3K4me3 marked panicle-specific genes, whereas root-specific expression was primarily linked to chromatin accessibility, suggesting a transcription factor–mediated regulatory mechanism. Together, our findings highlight the distinct epigenetic frameworks governing tissue-specific gene expression in pearl millet and provide valuable insights for advancing the genetic improvement of this crop. © The Author(s) 2025.

Keyword :

Alkylation Alkylation Arid regions Arid regions Gene expression regulation Gene expression regulation Methylation Methylation Plants (botany) Plants (botany) Tissue Tissue Tissue engineering Tissue engineering Transcription Transcription Transcription factors Transcription factors

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GB/T 7714 Luo, Lin , Qu, Qi , Cao, Mengxue et al. Epigenetic maps of pearl millet reveal a prominent role for CHH methylation in regulating tissue-specific gene expression [J]. | aBIOTECH , 2025 , 6 (3) : 394-410 .
MLA Luo, Lin et al. "Epigenetic maps of pearl millet reveal a prominent role for CHH methylation in regulating tissue-specific gene expression" . | aBIOTECH 6 . 3 (2025) : 394-410 .
APA Luo, Lin , Qu, Qi , Cao, Mengxue , Zhang, Yihui , Sun, Yuanchang , Mao, Fei et al. Epigenetic maps of pearl millet reveal a prominent role for CHH methylation in regulating tissue-specific gene expression . | aBIOTECH , 2025 , 6 (3) , 394-410 .
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The Global Transcription Factor FvCon7 Plays a Role in the Morphology, FB1 Toxin Production, and Pathogenesis of Fusarium verticillioides SCIE
期刊论文 | 2025 , 14 (17) | PLANTS-BASEL
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Fusarium verticillioides, an important global pathogenic fungus, compromises crop quality and yield by infecting maize, sugarcane, and some Solanaceae, endangering food security through contaminated grains and cereals with the fumonisin B1 (FB1) toxin. While Con7 has been reported as a transcription factor involved in the sporulation and pathogenicity of some pathogenic fungi, the function of FvCon7 and its regulatory genes in F. verticillioides remains uncharacterized. Gene deletion mutants of Delta Fvcon7 were constructed through homologous recombination, which exhibited defects in vegetative growth, survival, sporophore development, conidiation, conidial germination, and carbon metabolism. Carbon metabolism defects led to a significant accumulation of glycogen granules in hypha and lipid bodies in conidia. Additionally, Delta Fvcon7 displayed impaired cell wall structure and integrity, along with an altered expression of genes encoding cell wall-degrading enzymes (such as chitinase), as detected by qRT-PCR. Moreover, Fvcon7 also plays a role in the pathogenicity of maize and sugarcane through different splicing, defective conidia, reduced survival viability, differential expression of secreted proteins, and deficiencies in antioxidant stress capacity. Furthermore, using yeast one-hybrid (Y1H) assays, FvCon7 was found for the first time to directly regulate the expression of FvFUMs by binding to the CCAAT box within the promoters of six key FvFUMs, thereby affecting FB1 production. Overall, FvCon7 functions as a global transcription factor regulating multiple phenotypes. This study provides a theoretical basis for elucidating the mechanism of transcription factor FvCon7 regulating toxin production and pathogenesis in F. verticillioides.

Keyword :

cell wall cell wall conidiogenesis conidiogenesis FB1 FB1 FvCon7 FvCon7 morphology morphology

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GB/T 7714 Wen, Gaolong , Lu, Xiange , Liang, Jiayan et al. The Global Transcription Factor FvCon7 Plays a Role in the Morphology, FB1 Toxin Production, and Pathogenesis of Fusarium verticillioides [J]. | PLANTS-BASEL , 2025 , 14 (17) .
MLA Wen, Gaolong et al. "The Global Transcription Factor FvCon7 Plays a Role in the Morphology, FB1 Toxin Production, and Pathogenesis of Fusarium verticillioides" . | PLANTS-BASEL 14 . 17 (2025) .
APA Wen, Gaolong , Lu, Xiange , Liang, Jiayan , Liu, Yi , Zhang, Xudong , Lu, Guodong et al. The Global Transcription Factor FvCon7 Plays a Role in the Morphology, FB1 Toxin Production, and Pathogenesis of Fusarium verticillioides . | PLANTS-BASEL , 2025 , 14 (17) .
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