Publications by authors named "Zhu Xueming"

Saline-alkali land is a type of soil environment that causes poor crop growth and low yields. Its management and utilization are, therefore of great significance for increasing arable land resources, ensuring food security, and enhancing agricultural production capacity. The application of plant growth-promoting rhizobacteria (PGPR) is an effective way to promote the establishment of symbiotic relationships between plants and the rhizosphere microenvironment, plant growth and development, and plant resistance to saline-alkali stress.

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The filamentous fungus is widely recognized as a notorious plant pathogen responsible for causing rice blasts. With rapid advancements in molecular biology technologies, numerous regulatory mechanisms have been thoroughly investigated. However, most recent studies have predominantly focused on infection-related pathways or host defence mechanisms, which may be insufficient for developing novel structure-based prevention strategies.

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  • * Researchers identified MoPyr4, a DHOase homolog in M. oryzae, and found that deleting this gene impaired fungal growth, virulence, and autophagy processes.
  • * MoPyr4 is crucial for UMP biosynthesis and affects multiple signaling pathways related to stress response and pathogenicity, interacting with other proteins involved in autophagy and MAPK signaling pathways.
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  • - Csn5 is part of the COP9 signalosome and is vital for controlling how pathogenic fungi, like Magnaporthe oryzae, manage autophagy and their ability to cause infection.
  • - Researchers found that knocking out Csn5 leads to increased autophagy and a decrease in fungal pathogenicity due to overubiquitination and degradation of a key protein, MoTor, involved in the autophagy process.
  • - The study also identified that MoCsn5 interacts with MoAtg6, and through a specific type of ubiquitination (K48), it regulates the levels of MoAtg6, affecting autophagic activity and thus impacting the overall growth and pathogenicity of the fungus
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Septins play a key regulatory role in cell division, cytokinesis, and cell polar growth of the rice blast fungus (). We found that the organization of the septin ring, which is essential for appressorium-mediated infection in , requires long-chain fatty acids (LCFAs), which act as mediators of septin organization at membrane interfaces. However, it is unclear how septin ring formation and LCFAs regulate the pathogenicity of the rice blast fungus.

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Microbes employ effectors to disrupt immune responses and promote host colonization. Conserved motifs including RXLR, LFLAK-HVLVxxP (CRN), Y/F/WxC, CFEM, LysM, Chitin-bind, DPBB_1 (PNPi), and Cutinase have been discovered to play crucial roles in the functioning of effectors in filamentous fungi. Nevertheless, little is known about effectors with conserved motifs in endophytes.

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  • The cell cycle is crucial for differentiation in plant pathogenic fungi, particularly in the rice blast fungus, Magnaporthe oryzae, where gene MoSwe1 is identified as a key regulator.
  • MoSwe1 influences cell wall integrity (CWI) signaling by targeting the MAP kinase MoMps1, and mutations in MoSwe1 lead to abnormal CWI functions and cell cycle arrest.
  • The study also indicates that MoSwe1 facilitates autophagy through interactions with core autophagy proteins, impacting mutant fungal morphology and functions critical for pathogen development and virulence.
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Polymyxins are cationic peptide antibiotics and regarded as the "final line of defense" against multidrug-resistant bacterial infections. Meanwhile, some polymyxin-resistant strains and the corresponding resistance mechanisms have also been reported. However, the response of the polymyxin-producing strain Paenibacillus polymyxa to polymyxin stress remains unclear.

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Rice blast, caused by the plant pathogenic fungus Magnaporthe oryzae, is a destructive disaster all over the earth that causes enormous losses in crop production. Sphingolipid, an important biological cell membrane lipid, is an essential structural component in the plasma membrane (PM) and has several biological functions, including cell mitosis, apoptosis, stress resistance, and signal transduction. Previous studies have suggested that sphingolipid and its derivatives play essential roles in the virulence of plant pathogenic fungi.

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  • Rice blast disease negatively impacts crop productivity and is caused by specific pathogens that produce small secreted proteins called effectors.
  • These effectors interact with host cell receptors to trigger signaling pathways that affect processes like cell growth and death.
  • The review summarizes recent findings on the identification and function of effectors, while also outlining future research challenges and directions.
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  • 2,3-Butanediol is a renewable fuel that can be synthesized using the bacterium Paenibacillus polymyxa, which is gaining attention for its potential in biofuel production.
  • The study identifies crucial genes involved in the glucose-to-2,3-butanediol pathway through transcriptome and metabolome analyses, focusing on genes like ldh1, ldh3, bdh, and others that impact production.
  • By utilizing a hydrolysate from poplar wood, the researchers achieved a significant yield of 2,3-butanediol, demonstrating the feasibility of using raw biomass in engineered bacterial processes for renewable fuel generation.*
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  • * In plants, they are vital for cell development and stress responses, while in pathogenic fungi, they are important for initiating infections that can impact humans.
  • * The review highlights recent research on the sphingolipid pathways in plant pathogenic fungi, noting both their unique and shared features with other organisms, and discusses the development of inhibitors to control fungal infections in crops.
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  • * The study identifies Trs85, a crucial protein in the fungus, that regulates infection by influencing autophagy via the Ypt1 protein, highlighting its potential as a new target for fungicide development.
  • * A promising compound, SP-141, has been discovered to inhibit the Trs85-Ypt1 interaction and effectively reduce fungal infection, offering a new avenue for controlling rice blast and addressing fungicide resistance.
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The ubiquitin-proteasome system and the autophagy system are the two primary mechanisms used by eukaryotes to maintain protein homeostasis, and both are closely related to the pathogenicity of the rice blast fungus. In this research, we identified MoCand2 as an inhibitor of ubiquitination in Magnaporthe oryzae. Through this role, MoCand2 participates in the regulation of autophagy and pathogenicity.

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Calcineurin, a key regulator of the calcium signaling pathway, is involved in calcium signal transduction and calcium ion homeostasis. is a devastating filamentous phytopathogenic fungus in rice, yet little is known about the function of the calcium signaling system. Here, we identified a novel calcineurin regulatory-subunit-binding protein, MoCbp7, which is highly conserved in filamentous fungi and was found to localize in the cytoplasm.

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  • The text discusses a filamentous fungus that causes rice blast, a major threat to food safety, highlighting the importance of fatty acid metabolism in eukaryotes.
  • Researchers identified a protein called MoAcb1, related to acyl-CoA binding, and discovered that disrupting it causes delays in hyphal growth, conidial production, and appressorium development.
  • The study concludes that MoAcb1 is crucial for processes like conidia germination, appressorium formation, pathogenicity, and autophagy in the fungus.
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  • Allogeneic hematopoietic stem cell transplantation (allo-HSCT) can treat various blood-related diseases but often leads to kidney injuries with diverse types of damage noted in pediatric patients.
  • A study analyzed kidney biopsies from 25 children post-transplant, revealing significant issues like proteinuria, low kidney function, and several patients requiring kidney replacement therapy.
  • The most common kidney pathologies identified included mesangial proliferative glomerulonephritis and focal segmental glomerulosclerosis, with a notable follow-up revealing some patients suffering severe complications and death from related illnesses.
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is a fungal pathogen that causes fruit scab disease in the edible-oil (tea oil) plant ( Abel). The absence of genome resources for this fungus hampers functional genetic studies of the pathogenesis mechanism of . This study reports the genome assembly of strain SM-YC-2 collected from tea oil tree fruit with scab disease in Fujian Province, China.

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The diversity and community assembly mechanisms of eukaryotic plankton in coastal waters is so far not clear. In this study, we selected the coastal waters of Guangdong-Hong Kong-Macao Greater Bay Area, which is a highly developed region in China, as the research area. By use of high-throughput sequencing technologies, the diversity and community assembly mechanisms of eukaryotic marine plankton were studied in which a total of 7,295 OTUs were obtained, and 2,307 species were annotated by doing environmental DNA survey of 17 sites consist of surface and bottom layer.

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Crohn's disease (CD) is an inflammatory bowel disease that is characterized by chronic inflammation of digestive system and has a nickname "green cancer" because of its sustained alternation of periods of flares and remissions. Here, we investigated the inflammation changes in peripheral blood system of CD patients, which are less reported in China. Peripheral blood samples of 167 CD patients and 30 healthy people, as well as their clinical information, were collected at the Second Affiliated Hospital of Soochow University.

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  • * Researchers discovered that MoVast2 interacts with MoVast1 and MoAtg8, playing a vital role in autophagy and maintaining lipid balance, specifically through its effects on sterols and sphingolipids.
  • * The study found that when MoVast2 is deleted, it disrupts proper autophagy and alters lipid metabolism, highlighting its regulatory role alongside MoVast1 and its influence on the TOR signaling pathway in
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The endoplasmic reticulum (ER) acts as the starting point of the secretory pathway, where approximately one-third of the proteins are correctly folded and modified, loaded into vesicles, and transported to the Golgi for further processing and modification. In this process, COPII vesicles are responsible for transporting cargo proteins from the ER to the Golgi. Here, we identified the inner shell subunit of COPII vesicles (MoSec24B) and explored the importance of MoSec24B in the rice blast fungus.

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The COP9 signalosome (CSN) is a highly conserved protein complex in eukaryotes, affecting various development and signaling processes. To date, the biological functions of the COP9 signalosome and its subunits have not been determined in Magnaporthe oryzae. In this study, we characterized the CSN in M.

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Autophagy, an evolutionarily conserved cellular degradation pathway in eukaryotes, is hierarchically regulated by autophagy-related genes (Atgs). The Atg1/ULK1 complex is the most upstream factor involved in autophagy initiation. Here,we summarize the recent studies on the structure and molecular mechanism of the Atg1/ULK1 complex in autophagy initiation, with a special focus on upstream regulation and downstream effectors of Atg1/ULK1.

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