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Li N, Sun Y, Liu Y, Wei L, Zhang J, Li N, Sun D, Jiao J, Zuo Y, Li R, Cai X, Qiao J, Meng Q. Expression profiles and characterization of microRNAs responding to chitin in Arthrobotrys oligospora. Arch Microbiol 2024; 206:220. [PMID: 38630188 DOI: 10.1007/s00203-024-03949-x] [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: 01/03/2024] [Revised: 03/25/2024] [Accepted: 04/01/2024] [Indexed: 04/19/2024]
Abstract
Extracellular proteases, such as chitinases secreted by Arthrobotrys oligospora (A. oligospora), play a crucial role in the process of nematode infection. However, post-transcriptional regulation of gene expression involving microRNAs (miRNAs) in A. oligospora remains scarcely described. Hereto, transcriptome sequencing was carried out to analyze the expression profiles of chitin-responsive miRNAs in A. oligospora. Based on the RNA-seq data, the differential expression of miRNAs (DEmiRNAs) in response to chitin was screened, identified and characterized in A. oligospora. Meanwhile, the potential target genes were predicted by the online tools miRanda and Targetscan, respectively. Furthermore, the interaction of DEmiRNA with it's target gene was validated by a dual-luciferase reporter assay system. Among 85 novel miRNAs identified, 25 miRNAs displayed significant differences in expression in A. oligospora in response to chitin. Gene Ontology (GO) analysis showed that the potential genes targeted by DEmiRNAs were enriched in the biological processes such as bio-degradation, extracellular components and cell cycle. KEGG analysis revealed that the target genes were mainly involved in Hippo, carbon and riboflavin metabolic pathway. Outstandingly, chitinase AOL_s00004g379, which is involved in the hydrolysis metabolic pathway of chitin, was confirmed to be a target gene of differential miR_70. These findings suggest that chitin-responsive miRNAs are involved in the regulation of cell proliferation, predator hyphae growth and chitinase expression through the mechanisms of post-transcriptional regulation, which provides a new perspective to the molecular mechanisms underlying miRNAs-mediated control of gene expression in A. oligospora.
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Affiliation(s)
- Ningxing Li
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China
| | - Yansen Sun
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China
| | - Yucheng Liu
- State key laboratory of sheep genetic improvement and healthy breeding, Institute of Animal Science and Veterinary Research, Xinjiang Academy of Agricultural and Reclamation Science, Shihezi, 832000, Xinjiang, China
| | - Lixiang Wei
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China
| | - Jiahua Zhang
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China
| | - Nengxiu Li
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China
| | - Dianming Sun
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China
| | - Jian Jiao
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China
| | - Yufei Zuo
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China
| | - Ruobing Li
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China
| | - Xuepeng Cai
- State key laboratory of veterinary etiological biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, China
| | - Jun Qiao
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China.
| | - Qingling Meng
- College of Animal Science and Technology, Shihezi University, North Street No.4, Shihezi, 832003, Xinjiang, China.
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Liu H, Sun L, Zhang J, Wang Y, Lu H. Siderophore-synthesizing NRPS reprogram lipid metabolic profiles for phenotype and function changes of Arthrobotrys oligospora. World J Microbiol Biotechnol 2023; 40:46. [PMID: 38114752 DOI: 10.1007/s11274-023-03840-9] [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: 05/15/2023] [Accepted: 11/13/2023] [Indexed: 12/21/2023]
Abstract
The objective of this paper is to explore the function of the AOL-s00215g415 (Aog415) gene, which encodes for the synthesis of siderophore in the nematode trapping fungal model strain A. oligospora, in order to understand the relationship between siderophore biosynthesis and nematode trapping activity. After a through sequence analysis, it was determined that Aog415 is a siderophore-synthesizing NRPS. The product of this gene was then identified to be the hydroxamate siderophore desferriferrichrome, using mass spectrometry analysis. When compared to the WT strains, the Aog415 knockout strain exhibited a 60% decrease in siderophore content in fermentation broth. Additionally, the number of predatory rings of decreased by 23.21%, while the spore yield increased by 37.34%. The deletion of Aog415 did not affect the growth of A. oligospora in diverse nutrient medium. Lipid metabolism-related pathways were the primary targets of Aog415 disruption as revealed by the metabolomic analysis. In comparison to the WT, a significant reduction in the levels of glycerophospholipids, and glycolipids was observed in the mutation. The metabolic alteration in fatty acyls and amino acid-like molecules were significantly disrupted. The knockout of Aog415 impaired the biosynthesis of the hydroxamate siderophore desferriferrichrome, remodeled the flow of fatty acid in A. oligospora, and mainly reprogrammed the membrane lipid metabolism in cells. Desferriferrichrome, a hydroxamate siderophore affects the growth, metabolism and nematode trapping ability of A. oligospora by regulating iron intake and cell membrane homeostasis. Our study uncovered the significant contribution of siderophores to the growth and nematode trapping ability and constructed the relationship among siderophores biosynthesis, lipid metabolism and nematode trapping activity of A. oligospora, which provides a new insight for the development of nematode biocontrol agents based on nematode trapping fungi.
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Affiliation(s)
- Huiwen Liu
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, 230601, Anhui, China
| | - Liangyin Sun
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, 230601, Anhui, China
| | - Jintao Zhang
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, 230601, Anhui, China
| | - Yongzhong Wang
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China.
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, 230601, Anhui, China.
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei, 230601, Anhui, China.
| | - Hengqian Lu
- School of Life Sciences, Anhui University, Hefei, 230601, Anhui, China.
- Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei, 230601, Anhui, China.
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Zhou L, He Z, Zhang K, Wang X. Analysis of Nuclear Dynamics in Nematode-Trapping Fungi Based on Fluorescent Protein Labeling. J Fungi (Basel) 2023; 9:1183. [PMID: 38132784 PMCID: PMC10744682 DOI: 10.3390/jof9121183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/08/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
Nematophagous fungi constitute a category of fungi that exhibit parasitic behavior by capturing, colonizing, and poisoning nematodes, which are critical factors in controlling nematode populations in nature, and provide important research materials for biological control. Arthrobotrys oligospora serves as a model strain among nematophagous fungi, which begins its life as conidia, and then its hyphae produce traps to capture nematodes, completing its lifestyle switch from saprophytic to parasitic. There have been many descriptions of the morphological characteristics of A. oligospora lifestyle changes, but there have been no reports on the nuclear dynamics in this species. In this work, we constructed A. oligospora strains labeled with histone H2B-EGFP and observed the nuclear dynamics from conidia germination and hyphal extension to trap formation. We conducted real-time imaging observations on live cells of germinating and extending hyphae and found that the nucleus was located near the tip. It is interesting that the migration rate of this type of cell nucleus is very fast, and we speculate that this may be related to the morphological changes involved in the transformation to a predatory lifestyle. We suggest that alterations in nuclear shape and fixation imply the immediate disruption of the interaction with cytoskeletal mechanisms during nuclear migration. In conclusion, these findings suggest that the signal initiating nuclear migration into fungal traps is generated at the onset of nucleus entry into a trap cell. Our work provides a reference for analysis of the dynamics of nucleus distribution and a means to visualize protein localization and interactions in A. oligospora.
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Affiliation(s)
- Liang Zhou
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China; (L.Z.); (Z.H.)
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650500, China
| | - Zhiwei He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China; (L.Z.); (Z.H.)
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650500, China
| | - Keqin Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China; (L.Z.); (Z.H.)
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650500, China
| | - Xin Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China; (L.Z.); (Z.H.)
- Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650500, China
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Jaramillo-Tlalapango J, Mendoza-de Gives P, Isabel-Higuera-Piedrahita R, Ocampo-Gutiérrez AY, Eugenia-López-Arellano M, Pérez-Anzúrez G, Olmedo-Juárez A, Hernández-Romano J, Maza-Lopez J, Delgado-Núñez EJ, González-Cortázar M. Study of a Mexican isolate of Arthrobotrys musiformis (Orbiliales): Predatory behavior and nematocidal activity of liquid culture filtrates against Haemonchus contortus (Trichostrongylidae), protein profile and myco-constituent groups. Fungal Biol 2023; 127:1345-1361. [PMID: 37993246 DOI: 10.1016/j.funbio.2023.09.001] [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: 07/20/2023] [Revised: 09/05/2023] [Accepted: 09/14/2023] [Indexed: 11/24/2023]
Abstract
A Mexican isolate of the nematophagous fungus Arthrobotrys musiformis was obtained from a soil sample from the Chapultepec ecological reserve zone, in Cuernavaca, Morelos, Mexico. This isolate demonstrated an important predatory activity (74.9%) against the parasitic nematode Haemonchus contortus (L3) and its fungal liquid culture filtrates (LCF) grown in two media showed the following highest nematocidal activities (NA): In Czapek-DoxBroth (CzDoxB) 80.66% and potato-dextrose broth (PDB) 49.84%. Additionally, two major compounds derived from carboxylic acids and two derivates from alkane group were identified by GC-MS. These compounds have been associated to many biological activities. On the other hand, the protein profile analysis by SDS-electrophoresis followed by a zymogram revealed a 10 kDa protein with protease activity. This study provides important information for future experiments focused to explore the potential use of this protein as well as the identified bioactive compounds presents in the LCF as potential candidates against sheep haemonchosis.
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Affiliation(s)
- Jessica Jaramillo-Tlalapango
- Laboratory of Helminthology, National Centre for Disciplinary Research in Animal Health and Innocuity (CENID-SAI), National Institute for Research in Forestry, Agriculture and Livestock, INIFAP-SADER, Morelos, Jiutepec CP 62550, Mexico; Department of Research, Polytechnic University of Morelos State (UPEMOR), Boulevard Paseo Cuauhnáhuac No. 566, Colonia Lomas del Texcal, 62550 Jiutepec, Morelos, Mexico
| | - Pedro Mendoza-de Gives
- Laboratory of Helminthology, National Centre for Disciplinary Research in Animal Health and Innocuity (CENID-SAI), National Institute for Research in Forestry, Agriculture and Livestock, INIFAP-SADER, Morelos, Jiutepec CP 62550, Mexico.
| | | | - Ana Yuridia Ocampo-Gutiérrez
- Laboratory of Helminthology, National Centre for Disciplinary Research in Animal Health and Innocuity (CENID-SAI), National Institute for Research in Forestry, Agriculture and Livestock, INIFAP-SADER, Morelos, Jiutepec CP 62550, Mexico; Faculty of Advanced Studies Cuautitlán, National Autonomous University of Mexico, Cuautitlán 54714, Mexico.
| | - María Eugenia-López-Arellano
- Laboratory of Helminthology, National Centre for Disciplinary Research in Animal Health and Innocuity (CENID-SAI), National Institute for Research in Forestry, Agriculture and Livestock, INIFAP-SADER, Morelos, Jiutepec CP 62550, Mexico
| | - Gustavo Pérez-Anzúrez
- Laboratory of Helminthology, National Centre for Disciplinary Research in Animal Health and Innocuity (CENID-SAI), National Institute for Research in Forestry, Agriculture and Livestock, INIFAP-SADER, Morelos, Jiutepec CP 62550, Mexico
| | - Agustín Olmedo-Juárez
- Laboratory of Helminthology, National Centre for Disciplinary Research in Animal Health and Innocuity (CENID-SAI), National Institute for Research in Forestry, Agriculture and Livestock, INIFAP-SADER, Morelos, Jiutepec CP 62550, Mexico
| | - Jesús Hernández-Romano
- Department of Research, Polytechnic University of Morelos State (UPEMOR), Boulevard Paseo Cuauhnáhuac No. 566, Colonia Lomas del Texcal, 62550 Jiutepec, Morelos, Mexico
| | - Jocelyn Maza-Lopez
- Laboratory of Helminthology, National Centre for Disciplinary Research in Animal Health and Innocuity (CENID-SAI), National Institute for Research in Forestry, Agriculture and Livestock, INIFAP-SADER, Morelos, Jiutepec CP 62550, Mexico
| | - Edgar Jesús Delgado-Núñez
- Faculty of Agricultural, Livestock and Environmental Sciences, Autonomous University of the State of Guerrero, Iguala de la Independencia 40040, Mexico
| | - Manasés González-Cortázar
- South Biochemical Research Center, Social Security Mexican Institute (CIBIS-IMSS), Argentina street No. 1, Xochitepec 62790, Mexico
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