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Wang M, Li D, Frey B, Gao D, Liu X, Chen C, Sui X, Li M. Land use modified impacts of global change factors on soil microbial structure and function: A global hierarchical meta-analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 935:173286. [PMID: 38772492 DOI: 10.1016/j.scitotenv.2024.173286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/05/2024] [Accepted: 05/14/2024] [Indexed: 05/23/2024]
Abstract
Nitrogen cycling in terrestrial ecosystems is critical for biodiversity, vegetation productivity and biogeochemical cycling. However, little is known about the response of functional nitrogen cycle genes to global change factors in soils under different land uses. Here, we conducted a multiple hierarchical mixed effects meta-analyses of global change factors (GCFs) including warming (W+), mean altered precipitation (MAP+/-), elevated carbon dioxide concentrations (eCO2), and nitrogen addition (N+), using 2706 observations extracted from 200 peer-reviewed publications. The results showed that GCFs had significant and different effects on soil microbial communities under different types of land use. Under different land use types, such as Wetland, Tundra, Grassland, Forest, Desert and Agriculture, the richness and diversity of soil microbial communities will change accordingly due to differences in vegetation cover, soil management practices and environmental conditions. Notably, soil bacterial diversity is positively correlated with richness, but soil fungal diversity is negatively correlated with richness, when differences are driven by GCFs. For functional genes involved in nitrification, eCO2 in agricultural soils and the interaction of N+ with other GCFs in grassland soils stimulate an increase in the abundance of the AOA-amoA gene. In agricultural soil, MAP+ increases the abundance of nifH. W+ in agricultural soils and N+ in grassland soils decreased the abundance of nifH. The abundance of the genes nirS and nirK, involved in denitrification, was mainly negatively affected by W+ and positively affected by eCO2 in agricultural soil, but negatively affected by N+ in grassland soil. This meta-analysis was important for subsequent research related to global climate change. Considering data limitations, it is recommended to conduct multiple long-term integrated observational experiments to establish a scientific basis for addressing global changes in this context.
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Affiliation(s)
- Mingyu Wang
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Detian Li
- Griffith School of Environment and Science and the Australian Rivers Institute, Griffith University, Nathan, QLD, Australia
| | - Beat Frey
- Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland
| | - Decai Gao
- Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Changchun, PR China
| | - Xiangyu Liu
- Griffith School of Environment and Science and the Australian Rivers Institute, Griffith University, Nathan, QLD, Australia
| | - Chengrong Chen
- Griffith School of Environment and Science and the Australian Rivers Institute, Griffith University, Nathan, QLD, Australia
| | - Xin Sui
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education & Heilongjiang Provincial Key Laboratory of Ecological Restoration and Resource Utilization for Cold Region & Key Laboratory of Microbiology, College of Heilongjiang Province & School of Life Sciences, Heilongjiang University, Harbin 150080, China.
| | - Maihe Li
- Forest Dynamics, Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland; Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Changchun, PR China; School of Life Science, Hebei University, Baoding, China.
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Hernando AV, Sun W, Abitbol T. "You Are What You Eat": How Fungal Adaptation Can Be Leveraged toward Myco-Material Properties. GLOBAL CHALLENGES (HOBOKEN, NJ) 2024; 8:2300140. [PMID: 38486929 PMCID: PMC10935908 DOI: 10.1002/gch2.202300140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 10/01/2023] [Indexed: 03/17/2024]
Abstract
Fungi adapt to their surroundings, modifying their behaviors and composition under different conditions like nutrient availability and environmental stress. This perspective examines how a basic understanding of fungal genetics and the different ways that fungi can be influenced by their surroundings can be leveraged toward the production of functional mycelium materials. Simply put, within the constraints of a given genetic script, both the quality and quantity of fungal mycelium are shaped by what they eat and where they grow. These two levers, encompassing their global growth environment, can be turned toward different materials outcomes. The final properties of myco-materials are thus intimately shaped by the conditions of their growth, enabling the design of new biobased and biodegradable material constructions for applications that have traditionally relied on petroleum-based chemicals.This perspective highlights aspects of fungal genetics and environmental adaptation that have potential materials science implications, along the way touching on key studies, both to situate the state of the art within the field and to punctuate the viewpoints of the authors. Finally, this work ends with future perspectives, reinforcing key topics deemed important to consider in emerging myco-materials research.
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Affiliation(s)
- Alicia Vivas Hernando
- Institute of Materials (IMX)École Polytechnique Fédérale de Lausanne (EPFL)Lausanne1015Switzerland
| | - Wenjing Sun
- Institute of Materials (IMX)École Polytechnique Fédérale de Lausanne (EPFL)Lausanne1015Switzerland
| | - Tiffany Abitbol
- Institute of Materials (IMX)École Polytechnique Fédérale de Lausanne (EPFL)Lausanne1015Switzerland
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Li W, Li Q, Pan Z, Burgaud G, Ma H, Zheng Y, Wang M, Cai L. Seasonal and Spatial Dynamics of Fungal Diversity and Communities in the Intertidal Zones of Qingdao, China. J Fungi (Basel) 2023; 9:1015. [PMID: 37888271 PMCID: PMC10607781 DOI: 10.3390/jof9101015] [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: 08/23/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023] Open
Abstract
Intertidal zones comprise diverse habitats and directly suffer from the influences of human activities. Nevertheless, the seasonal fluctuations in fungal diversity and community structure in these areas are not well comprehended. To address this gap, samples of seawater and sediment were collected seasonally from the estuary and swimming beaches of Qingdao's intertidal areas in China and were analyzed using a metabarcoding approach targeting ITS2 rDNA regions. Compared to the seawater community dominated by Ciliophora and Agaricomycetes, the sediment community was rather dominated by Dothideomycetes and Eurotiomycetes. Furthermore, the seawater community shifted with the seasons but not with the locations, while the sediment community shifted seasonally and spatially, with a specific trend showing that Cladosporium, Alternaria, and Aureobasidium occurred predominantly in the estuarine habitats during winter and in the beach habitats during spring. These spatiotemporal shifts in fungal communities' composition were supported by the PERMANOVA test and could be explained partially by the environmental variables checked, including temperature, salinity, and total organic carbon. Unexpectedly, the lowest fungal richness was observed in the summer sediments from two swimming beaches which were attracting a high influx of tourists during summer, leading to a significant anthropogenic influence. Predicted trophic modes of fungal taxa exhibited a seasonal pattern with an abundance of saprotrophic fungi in the summer sediments, positively correlating to the temperature, while the taxa affiliated with symbiotroph and pathotroph-saprotroph occurred abundantly in the winter and spring sediments, respectively. Our results demonstrate the space-time shifts in terms of the fungal community, as well as the trophic modes in the intertidal region, providing in-depth insights into the potential influence of environmental factors and human activity on intertidal mycobiomes.
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Affiliation(s)
- Wei Li
- College of Science, Shantou University, Shantou 515063, China; (Q.L.); (M.W.)
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China; (Z.P.); (H.M.); (Y.Z.)
| | - Qi Li
- College of Science, Shantou University, Shantou 515063, China; (Q.L.); (M.W.)
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Zhihui Pan
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China; (Z.P.); (H.M.); (Y.Z.)
| | - Gaëtan Burgaud
- Laboratoire Universitaire de Biodiversité et Écologie Microbienne, Frech National Research Institute for Agriculture, Food and Environment (INRAE), Université de Bretagne Occidentale, F-29280 Plouzané, France;
| | - Hehe Ma
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China; (Z.P.); (H.M.); (Y.Z.)
| | - Yao Zheng
- College of Marine Life Sciences, Ocean University of China, Qingdao 266100, China; (Z.P.); (H.M.); (Y.Z.)
| | - Mengmeng Wang
- College of Science, Shantou University, Shantou 515063, China; (Q.L.); (M.W.)
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Lei Cai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
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Yehia RS. Highlighting the potential for crude oil bioremediation of locally isolated Cunninghamella echinulata and Mucor circinelloides. Braz J Microbiol 2023; 54:1969-1981. [PMID: 37249816 PMCID: PMC10485222 DOI: 10.1007/s42770-023-01008-z] [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: 03/16/2023] [Accepted: 05/13/2023] [Indexed: 05/31/2023] Open
Abstract
The current investigation was carried out to assess the potential of fungi isolated from polluted soil samples in Al Jubail, Saudi Arabia, to degrade crude oil. In a minimal salt medium with 1% crude oil as the carbon source, the growth potential of various fungal isolates was examined. Among twelve fungal isolates, YS-6 and YS-10, identified as Cunninghamella echinulata and Mucor circinelloides based on multiple sequence comparisons and phylogenetic analyses, were selected as having superior crude oil degrading abilities. To the best of our knowledge, the isolated species have never been detected in polluted soil samples in the eastern province of Saudi Arabia. YS-6 and YS-10 have shown their capacity to metabolize crude oil by removing 59.7 and 78.1% of crude oil, respectively. Interestingly, they succeeded in reducing the surface tension to 41.2 and 35.9 mN/m, respectively. Moreover, the emulsification activity and hydrophobicity were determined to be 36.7, 44.9, 35.9, and 53.4%, respectively. The recovery assays included zinc sulfate, ammonium sulfate, acid precipitation, and solvent extraction techniques. All these approaches showed that the amount of biosurfactants correlates to the tested hydrocarbons. Furthermore, the enzyme activity of these two isolates generated significantly more laccase (Lac) than manganese peroxidase (MnP) and lignin peroxidase (LiP), as compared to the control. In conclusion, our study highlights new perspectives on the fungal resources found in persistently polluted terrestrial ecosystems. This knowledge will be useful for bioremediation, safe disposal of petroleum-oil contamination, and other industrial uses.
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Affiliation(s)
- Ramy S Yehia
- Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia.
- Department of Botany and Microbiology, Faculty of Science, Cairo University, Giza, 12613, Egypt.
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Wijayawardene NN, Boonyuen N, Ranaweera CB, de Zoysa HKS, Padmathilake RE, Nifla F, Dai DQ, Liu Y, Suwannarach N, Kumla J, Bamunuarachchige TC, Chen HH. OMICS and Other Advanced Technologies in Mycological Applications. J Fungi (Basel) 2023; 9:688. [PMID: 37367624 DOI: 10.3390/jof9060688] [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: 04/11/2023] [Revised: 06/06/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023] Open
Abstract
Fungi play many roles in different ecosystems. The precise identification of fungi is important in different aspects. Historically, they were identified based on morphological characteristics, but technological advancements such as polymerase chain reaction (PCR) and DNA sequencing now enable more accurate identification and taxonomy, and higher-level classifications. However, some species, referred to as "dark taxa", lack distinct physical features that makes their identification challenging. High-throughput sequencing and metagenomics of environmental samples provide a solution to identifying new lineages of fungi. This paper discusses different approaches to taxonomy, including PCR amplification and sequencing of rDNA, multi-loci phylogenetic analyses, and the importance of various omics (large-scale molecular) techniques for understanding fungal applications. The use of proteomics, transcriptomics, metatranscriptomics, metabolomics, and interactomics provides a comprehensive understanding of fungi. These advanced technologies are critical for expanding the knowledge of the Kingdom of Fungi, including its impact on food safety and security, edible mushrooms foodomics, fungal secondary metabolites, mycotoxin-producing fungi, and biomedical and therapeutic applications, including antifungal drugs and drug resistance, and fungal omics data for novel drug development. The paper also highlights the importance of exploring fungi from extreme environments and understudied areas to identify novel lineages in the fungal dark taxa.
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Affiliation(s)
- Nalin N Wijayawardene
- Centre for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
- Department of Bioprocess Technology, Faculty of Technology, Rajarata University of Sri Lanka, Mihintale 50300, Sri Lanka
- Section of Genetics, Institute for Research and Development in Health and Social Care, No: 393/3, Lily Avenue, Off Robert Gunawardane Mawatha, Battaramulla 10120, Sri Lanka
| | - Nattawut Boonyuen
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand
| | - Chathuranga B Ranaweera
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, General Sir John Kotelawala Defence University Sri Lanka, Kandawala Road, Rathmalana 10390, Sri Lanka
| | - Heethaka K S de Zoysa
- Department of Bioprocess Technology, Faculty of Technology, Rajarata University of Sri Lanka, Mihintale 50300, Sri Lanka
| | - Rasanie E Padmathilake
- Department of Plant Sciences, Faculty of Agriculture, Rajarata University of Sri Lanka, Pulliyankulama, Anuradhapura 50000, Sri Lanka
| | - Faarah Nifla
- Department of Bioprocess Technology, Faculty of Technology, Rajarata University of Sri Lanka, Mihintale 50300, Sri Lanka
| | - Dong-Qin Dai
- Centre for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
| | - Yanxia Liu
- Guizhou Academy of Tobacco Science, No.29, Longtanba Road, Guanshanhu District, Guiyang 550000, China
| | - Nakarin Suwannarach
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Jaturong Kumla
- Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Thushara C Bamunuarachchige
- Department of Bioprocess Technology, Faculty of Technology, Rajarata University of Sri Lanka, Mihintale 50300, Sri Lanka
| | - Huan-Huan Chen
- Centre for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
- Key Laboratory of Insect-Pollinator Biology of Ministry of Agriculture and Rural Affairs, Institute of Agricultural Research, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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Peng M, Bervoets S, Chin-A-Woeng T, Granchi Z, Hildén K, Mäkelä MR, de Vries RP. The transcriptomic response of two basidiomycete fungi to plant biomass is modulated by temperature to a different extent. Microbiol Res 2023; 270:127333. [PMID: 36804127 DOI: 10.1016/j.micres.2023.127333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023]
Abstract
Many fungi show a strong preference for specific habitats and growth conditions. Investigating the molecular mechanisms of fungal adaptation to varying environmental conditions is of great interest to biodiversity research and is important for many industrial applications. In this study, we compared the transcriptome profiles of two previously genome-sequenced white-rot wood-decay fungi, Trametes pubescens and Phlebia centrifuga, during their growth on two common plant biomass substrates (wheat straw and spruce) at two temperatures (15 °C and 25 °C). The results showed that both fungi partially tailored their molecular responses to different types of carbon sources, differentially expressing genes encoding polysaccharide degrading enzymes, transporters, proteases and monooxygenases. Notably, more lignin modification related AA2 genes and cellulose degradation related AA9 genes were differentially expressed in the tested conditions of T. pubescens than P. centrifuga. In addition, we detected more remarkable transcriptome changes to different growth temperature in P. centrifuga than in T. pubescens, which reflected their different ability to adapt to the temperature fluctuations. In P. centrifuga, differentially expressed genes (DEGs) related to temperature response mainly encode protein kinases, trehalose metabolism, carbon metabolic enzymes and glycoside hydrolases, while the main temperature-related DEGs identified in T. pubescens are only the carbon metabolic enzymes and glycoside hydrolases. Our study revealed both conserved and species-specific transcriptome changes during fungal adaptation to a changing environment, improving our understanding of the molecular mechanisms underlying fungal plant biomass conversion at varying temperatures.
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Affiliation(s)
- Mao Peng
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute, & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, the Netherlands.
| | - Sander Bervoets
- GenomeScan B.V., Plesmanlaan 1/D, 2333 BZ Leiden, the Netherlands
| | | | - Zoraide Granchi
- GenomeScan B.V., Plesmanlaan 1/D, 2333 BZ Leiden, the Netherlands
| | - Kristiina Hildén
- Department of Microbiology, University of Helsinki, Viikinkaari 9, Helsinki, Finland
| | - Miia R Mäkelä
- Department of Microbiology, University of Helsinki, Viikinkaari 9, Helsinki, Finland
| | - Ronald P de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute, & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, the Netherlands
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Alwakeel S, Alothman N, Ameen F, Alotaibi M, Mohammed AE, Alhomaidi E. Stress-driven metabolites of desert soil fungi. Biotechnol Genet Eng Rev 2023:1-14. [PMID: 36852923 DOI: 10.1080/02648725.2023.2182537] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 01/17/2023] [Indexed: 03/01/2023]
Abstract
Microorganisms produce secondary metabolites to survive under stressful conditions. The effect of drought and heat stress on fungi isolated from Arabian desert soil during the hot (ca 40°C) and cool (ca 10°C) seasons was studied using the genome mining approach. The presence of three stress-related genes (calmodulin, polyketide synthase and beta tubulin) was analyzed molecularly using specific primers. The presence of the genes in desert fungi was compared to their antimicrobial (ten bacterial or fungal pathogens) and anticancer (liver, cervical and breast) properties and the production of thermostable enzymes (phytase and xylanase). The genes appeared to be present in the fungal sequence obtained during the summer, while none of the genes were present during winter. Appreciable differences were observed in enzyme activities, with summer activities high and winter low. The antagonistic activities of A. niger were relatively stable and varying, while those of P. chrysogenum were consistently higher in summer than in winter. The presence of the three genes seemed to correlate with the highly antagonistic activities of P. chrysogenum, while A. niger had relatively active winter isolates without any of the genes. The hot season in deserts yields fungal isolates with biological activities useful in biotechnological solutions.
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Affiliation(s)
- Suaad Alwakeel
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Nouf Alothman
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Fuad Ameen
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Modhi Alotaibi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Afrah E Mohammed
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Eman Alhomaidi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
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Wang M, Mara P, Burgaud G, Edgcomb V, Long X, Yang H, Cai L, Li W. Metatranscriptomics and metabarcoding reveal spatiotemporal shifts in fungal communities and their activities in Chinese coastal waters. Mol Ecol 2023; 32:2750-2765. [PMID: 36852430 DOI: 10.1111/mec.16905] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 03/01/2023]
Abstract
Fungal communities are diverse and abundant in coastal waters, yet, their ecological roles and adaptations remain largely unknown. To address these gaps, ITS2 metabarcoding and metatranscriptomic analyses were used to capture the whole suite of fungal diversity and their metabolic potential in water column and sediments in the Yellow Sea during August and October 2019. ITS2 metabarcoding described successfully the abundance of Dikarya during August and October at the different examined habitats, but strongly underrepresented or failed to identify other fungal taxa, including zoosporic and early-diverging lineages, that were abundant in the mycobiome as uncovered by metatranscriptomes. Metatranscriptomics also revealed enriched expression of genes annotated to zoosporic fungi (e.g., chytrids) mainly in the surface water column in October. This enriched expression was correlated with the two-fold increase in chlorophyll-a intensity attributed to phytoplanktonic species which are known to be parasitized by chytrids. The concurrent high expression of genes related to calcium signalling and GTPase activity suggested that these metabolic traits facilitate the parasitic lifestyle of chytrids. Similarly, elevated expression of phagosome genes annotated to Rozellomycota, an early-diverging fungal phylum not fully detected with ITS2 metabarcoding, suggested that this taxon utilizes a suite of feeding modes, including phagotrophy in this coastal setting. Our data highlight the necessity of using combined approaches to accurately describe the community structure of coastal mycobiome. We also provide in-depth insights into the fungal ecological roles in coastal waters, and report potential metabolic mechanisms utilized by fungi to cope with environmental stresses that occur during distinct seasonal months in coastal ecosystems.
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Affiliation(s)
- Mengmeng Wang
- College of Science, Shantou University, Shantou, China.,State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Paraskevi Mara
- Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA
| | - Gaëtan Burgaud
- University of Brest, INRAE, Laboratoire Universitaire de Biodiversité et Écologie Microbienne, Plouzané, France
| | - Virginia Edgcomb
- Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA
| | - Xuedan Long
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Haiping Yang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Lei Cai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Wei Li
- College of Science, Shantou University, Shantou, China
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9
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Lignin Nanoparticles for Enhancing Physicochemical and Antimicrobial Properties of Polybutylene Succinate/Thymol Composite Film for Active Packaging. Polymers (Basel) 2023; 15:polym15040989. [PMID: 36850272 PMCID: PMC9967065 DOI: 10.3390/polym15040989] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/19/2023] Open
Abstract
The natural abundance, polymer stability, biodegradability, and natural antimicrobial properties of lignin open a wide range of potential applications aiming for sustainability. In this work, the effects of 1% (w/w) softwood kraft lignin nanoparticles (SLNPs) on the physicochemical properties of polybutylene succinate (PBS) composite films were investigated. Incorporation of SLNPs into neat PBS enhanced Td from 354.1 °C to 364.7 °C, determined through TGA, whereas Tg increased from -39.1 °C to -35.7 °C while no significant change was observed in Tm and crystallinity, analyzed through DSC. The tensile strength of neat PBS increased, to 35.6 MPa, when SLNPs were added to it. Oxygen and water vapor permeabilities of PBS with SLNPs decreased equating to enhanced barrier properties. The good interactions among SLNPs, thymol, and PBS matrix, and the high homogeneity of the resultant PBS composite films, were determined through FTIR and FE-SEM analyses. This work revealed that, among the PBS composite films tested, PBS + 1% SLNPs + 10% thymol showed the strongest microbial growth inhibition against Colletotrichum gloeosporioides and Lasiodiplodia theobromae, both in vitro, through a diffusion method assay, and in actual testing on active packaging of mango fruit (cultivar "Nam Dok Mai Si Thong"). SLNPs could be an attractive replacement for synthetic substances for enhancing polymer properties without compromising the biodegradability of the resultant material, and for providing antimicrobial functions for active packaging applications.
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Korfanty G, Heifetz E, Xu J. Assessing thermal adaptation of a global sample of Aspergillus fumigatus: Implications for climate change effects. Front Public Health 2023; 11:1059238. [PMID: 36875405 PMCID: PMC9978374 DOI: 10.3389/fpubh.2023.1059238] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 01/31/2023] [Indexed: 02/18/2023] Open
Abstract
Aspergillus fumigatus is a common environmental mold and a major cause of opportunistic infections in humans. It's distributed among many ecological niches across the globe. A major virulence factor of A. fumigatus is its ability to grow at high temperature. However, at present, little is known about variations among strains in their growth at different temperatures and how their geographic origins may impact such variations. In this study, we analyzed 89 strains from 12 countries (Cameroon, Canada, China, Costa Rica, France, India, Iceland, Ireland, New Zealand, Peru, Saudi Arabia, and USA) representing diverse geographic locations and temperature environments. Each strain was grown at four temperatures and genotyped at nine microsatellite loci. Our analyses revealed a range of growth profiles, with significant variations among strains within individual geographic populations in their growths across the temperatures. No statistically significant association was observed between strain genotypes and their thermal growth profiles. Similarly geographic separation contributed little to differences in thermal adaptations among strains and populations. The combined analyses among genotypes and growth rates at different temperatures in the global sample suggest that most natural populations of A. fumigatus are capable of rapid adaptation to temperature changes. We discuss the implications of our results to the evolution and epidemiology of A. fumigatus under increasing climate change.
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Affiliation(s)
- Greg Korfanty
- Department of Biology, McMaster University, Hamilton, ON, Canada
| | - Erin Heifetz
- Department of Biology, McMaster University, Hamilton, ON, Canada
| | - Jianping Xu
- Department of Biology, McMaster University, Hamilton, ON, Canada
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11
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Biodegradation of Petroleum Hydrocarbons by Drechsleraspicifera Isolated from Contaminated Soil in Riyadh, Saudi Arabia. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196450. [PMID: 36234987 PMCID: PMC9572601 DOI: 10.3390/molecules27196450] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 09/02/2022] [Accepted: 09/26/2022] [Indexed: 11/14/2022]
Abstract
Currently, the bioremediation of petroleum hydrocarbons employs microbial biosurfactants because of their public acceptability, biological safety, and low cost. These organisms can degrade or detoxify organic-contaminated areas, such as marine ecosystems. The current study aimed to test the oil-biodegradation ability of the fungus Drechslera spicifera, which was isolated from contaminated soil samples in Riyadh, Saudi Arabia. We used hydrocarbon tolerance, scanning electron microscopy, DCPIP, drop-collapse, emulsification activity, recovery of biosurfactants, and germination assays to assess the biodegradation characteristics of the D. spicifera against kerosene, crude, diesel, used, and mixed oils. The results of DCPIP show that the highest oxidation (0.736 a.u.) was induced by crude oil on the 15th day. In contrast, kerosene and used oil had the highest measurements in emulsification activity and drop-collapse assays, respectively. Meanwhile, crude and used oils produced the highest amounts of biosurfactants through acid precipitation and solvent extraction assays. Furthermore, the biosurfactants stimulated the germination of tomato seeds by more than 50% compared to the control. These findings highlight the biodegradation ability of D. spicifera, which has been proven in the use of petroleum oils as the sole source of carbon. That might encourage further research to demonstrate its application in the cleaning of large, contaminated areas.
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Growth ability, carbon source utilization and biochemical features of the new specie Zalaria obscura. World J Microbiol Biotechnol 2022; 38:229. [PMID: 36149541 PMCID: PMC9508035 DOI: 10.1007/s11274-022-03417-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/15/2022] [Indexed: 11/26/2022]
Abstract
This research investigated the characteristics of Zalaria obscura LS31012019 in terms of growth ability in different media (SDB, YPD and TSB) and temperatures (22, 25 and 37 °C), utilization of several carbon sources (Glucose, Fructose, Lactose, Sucrose, Xylose, Glycerol and Mannitol at 5, 2 and 1%) and several biochemical features (total protein content, Glutathione, pigments), in comparison with those of the phylogenetically related Aureobasidium pullulans ATCC 15233. The best growth of Z. obscura LS31012019 was obtained in YPD at 25 °C with the highest OD value (0.45) after 144 h of incubation, similar to that of A. pullulans ATCC 15233 (0.48). Glucose resulted the preferred carbon source for both the considered yeasts but also sucrose resulted in efficacy supporting the growth of Z. obscura LS31012019 and A. pullulans ATCC 15233, for their ability in converting sucrose to glucose and fructose and the latter into glucose. Interestingly, Z. obscura LS31012019 utilized also glycerol and mannitol. The biochemical analysis showed the similarity of protein profile in Z. obscura LS31012019 and A. pullulans ATCC 15233 (from 90 to 20 kDa) and a reduced GSH content (0.321 and 0.233 µmol/mg). The pigments extraction with hexane generated a yellow oleaginous pellet in both the strains, while a yellow solid matrix more intensely coloured in A. pullulans ATTC 15233 was visible with the following solvent extractions. Overall, our data showed that Z. obscura LS31012019 can grow in different media and temperatures and utilize carbon sources apart from glucose and sucrose, shifting to a non-fermentative metabolism. These results improve the information regarding the characteristics of Z. obscura, opening a new field of investigation for the possible application of new species of black yeasts in human application.
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Guo J, Zhu J, Zhao T, Sun Z, Song S, Zhang Y, Zhu D, Cao S, Deng X, Chai Y, Sun Y, Maratbek S, Chen C, Liu L, Zhang H. Survival characteristics and transcriptome profiling reveal the adaptive response of the Brucella melitensis 16M biofilm to osmotic stress. Front Microbiol 2022; 13:968592. [PMID: 36060772 PMCID: PMC9428795 DOI: 10.3389/fmicb.2022.968592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/28/2022] [Indexed: 11/13/2022] Open
Abstract
Brucella can inhabit hostile environments, including osmotic stress. How Brucella responds collectively to osmotic stress is largely unexplored, particularly in spatially structured communities such as a biofilm. To gain insight into this growth mode, we set out to characterize the Brucella melitensis 16M biofilm, describe its phenotype, and carry out a comparative transcriptomic analysis between biofilms under osmotic stress and control conditions. We determined that the bacteria challenged with 1.5 M NaCl had a reduced ability to aggregate and form clumps and develop a biofilm; however, the salt stress promoted the release of the outer membrane vesicles from the biofilm. Together with the genotypical response to osmotic stress, we identified 279 differentially expressed genes in B. melitensis 16M grown under osmotic conditions compared with control conditions; 69 genes were upregulated and 210 downregulated. Under osmotic stress, the main changed genes of biofilm were predicted to be involved in flagellar assembly, cell envelope, translation, small RNA regulation, transport and binding proteins, and energy metabolism. In addition, the ABC transporter was enriched in the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. We highlight 12 essential ABC transporter genes associated with a bacterial response to osmotic stress at the biofilm stage, including one specific locus, BME_RS12880, mediating betaine accumulation in biofilms to eliminate osmotic stress. The current study results can help researchers gain insights into B. melitensis 16M biofilm adaptation to osmotic stress and provide information for developing intervention strategies to control Brucella.
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Affiliation(s)
- Jia Guo
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Jiale Zhu
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Tianyi Zhao
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Zhihua Sun
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Shengnan Song
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Yu Zhang
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Dexin Zhu
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Shuzhu Cao
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Xingmei Deng
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Yingjin Chai
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Yongxue Sun
- Collaborative Innovation Center for Sheep Healthy Farming and Zoonotic Disease Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Suleimenov Maratbek
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
- College of Veterinary, National Agricultural University of Kazakhstan, Nur-Sultan, Kazakhstan
| | - Chuangfu Chen
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Liangbo Liu
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
- *Correspondence: Liangbo Liu,
| | - Hui Zhang
- State International Joint Research Center for Animal Health Breeding, College of Animal Science and Technology, Shihezi University, Shihezi, China
- Hui Zhang,
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Batool W, Liu C, Fan X, Zhang P, Hu Y, Wei Y, Zhang SH. AGC/AKT Protein Kinase SCH9 Is Critical to Pathogenic Development and Overwintering Survival in Magnaporthe oryzae. J Fungi (Basel) 2022; 8:jof8080810. [PMID: 36012798 PMCID: PMC9410157 DOI: 10.3390/jof8080810] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 02/06/2023] Open
Abstract
Primary inoculum that survives overwintering is one of the key factors that determine the outbreak of plant disease. Pathogenic resting structures, such as chlamydospores, are an ideal inoculum for plant disease. Puzzlingly, Magnaporthe oryzae, a devastating fungal pathogen responsible for blast disease in rice, hardly form any morphologically changed resting structures, and we hypothesize that M. oryzae mainly relies on its physiological alteration to survive overwintering or other harsh environments. However, little progress on research into regulatory genes that facilitate the overwintering of rice blast pathogens has been made so far. Serine threonine protein kinase AGC/AKT, MoSch9, plays an important role in the spore-mediated pathogenesis of M. oryzae. Building on this finding, we discovered that in genetic and biological terms, MoSch9 plays a critical role in conidiophore stalk formation, hyphal-mediated pathogenesis, cold stress tolerance, and overwintering survival of M. oryzae. We discovered that the formation of conidiophore stalks and disease propagation using spores was severely compromised in the mutant strains, whereas hyphal-mediated pathogenesis and the root infection capability of M. oryzae were completely eradicated due to MoSch9 deleted mutants’ inability to form an appressorium-like structure. Most importantly, the functional and transcriptomic study of wild-type and MoSch9 mutant strains showed that MoSch9 plays a regulatory role in cold stress tolerance of M. oryzae through the transcription regulation of secondary metabolite synthesis, ATP hydrolyzing, and cell wall integrity proteins during osmotic stress and cold temperatures. From these results, we conclude that MoSch9 is essential for fungal infection-related morphogenesis and overwintering of M. oryzae.
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Charles-Niño CL, Loera A, Medina-Guerrero EO, Sanroman-Loza EA, Toledo B, Pedroza-Roldan C. Sporotrichosis: an Overview in the Context of the One Health Approach. CURRENT TROPICAL MEDICINE REPORTS 2022. [DOI: 10.1007/s40475-022-00250-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Thermotolerance and Adaptation to Climate Change. Fungal Biol 2022. [DOI: 10.1007/978-3-030-89664-5_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Liu Y, Gong X, Li M, Si H, Zhou Q, Liu X, Fan Y, Zhang X, Han J, Gu S, Dong J. Effect of Osmotic Stress on the Growth, Development and Pathogenicity of Setosphaeria turcica. Front Microbiol 2021; 12:706349. [PMID: 34367108 PMCID: PMC8342955 DOI: 10.3389/fmicb.2021.706349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 06/29/2021] [Indexed: 11/22/2022] Open
Abstract
Osmotic stress is a severe condition frequently encountered by microorganisms; however, there is limited knowledge on the influence of hyperosmotic stress on the growth, development and pathogenicity of phytopathogenic fungi. Here, three osmotic conditions (0.4 M NaCl, 0.4 M KCl, and 0.6 M sorbitol supplemented in potato dextrose agar medium) were used to identify the effect of osmotic stress on the growth, development and pathogenicity of Setosphaeria turcica which is a plant pathogenic fungus and causes northern corn leaf blight disease in maize, sorghum, and related grasses. In osmotic stress, the growth rate of mycelium was decreased, and the number of vesicular structures and flocculent secretion outside the hypha cell wall were significantly increased. The qRT-PCR results showed that the osmotic stress quickly activated the HOG-MAPK pathway, up-regulated the expression of the downstream genes, and these genes were most highly expressed within 30 min of exposure to osmotic stress. Furthermore, the germination rate and the yield of conidia were significantly higher under osmotic stress than in the control. A pathogenicity analysis confirmed that pathogenicity of the conidia which were cultured under osmotic stress was significantly enhanced. By analyzing the knock-out mutants of an osmotic stress responsed gene StFPS1, an aquaglyceroporin downstream of the HOG-MAPK pathway, we found that StFPS1 was involved in the formation of appressorium and penetration peg, which affected the penetration ability of S. turcica. In summary, our work explained the correlation between osmotic stress and growth, development, and pathogenicity in S. turcica.
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Affiliation(s)
- Yuwei Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Xiaodong Gong
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Moxiao Li
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Helong Si
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Qihui Zhou
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Xingchen Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Yu Fan
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Xiaoyu Zhang
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Jianmin Han
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Shouqin Gu
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, China
| | - Jingao Dong
- State Key Laboratory of North China Crop Improvement and Regulation, Baoding, China.,College of Life Sciences, Hebei Agricultural University, Baoding, China.,College of Plant Protection, Hebei Agricultural University, Baoding, China
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Gao J, Li Q, Li D. Novel Proteome and N-Glycoproteome of the Thermophilic Fungus Chaetomium thermophilum in Response to High Temperature. Front Microbiol 2021; 12:644984. [PMID: 34163440 PMCID: PMC8216556 DOI: 10.3389/fmicb.2021.644984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/22/2021] [Indexed: 11/26/2022] Open
Abstract
Thermophilic fungi are eukaryotic species that grow at high temperatures, but little is known about the underlying basis of thermophily at cell and molecular levels. Here the proteome and N-glycoproteome of Chaetomium thermophilum at varying culture temperatures (30, 50, and 55°C) were studied using hydrophilic interaction liquid chromatography enrichment and high-resolution liquid chromatography–tandem mass spectroscopy analysis. With respect to the proteome, the numbers of differentially expressed proteins were 1,274, 1,374, and 1,063 in T50/T30, T55/T30, and T55/T50, respectively. The upregulated proteins were involved in biological processes, such as protein folding and carbohydrate metabolism. Most downregulated proteins were involved in molecular functions, including structural constituents of the ribosome and other protein complexes. For the N-glycoproteome, the numbers of differentially expressed N-glycoproteins were 160, 176, and 128 in T50/T30, T55/T30, and T55/T50, respectively. The differential glycoproteins were mainly involved in various types of N-glycan biosynthesis, mRNA surveillance pathway, and protein processing in the endoplasmic reticulum. These results indicated that an efficient protein homeostasis pathway plays an essential role in the thermophily of C. thermophilum, and N-glycosylation is involved by affecting related proteins. This is the novel study to reveal thermophilic fungi’s physiological response to high-temperature adaptation using omics analysis, facilitating the exploration of the thermophily mechanism of thermophilic fungi.
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Affiliation(s)
- Jinpeng Gao
- Department of Mycology, Shandong Agricultural University, Taian, China
| | - Qingchao Li
- Department of Mycology, Shandong Agricultural University, Taian, China
| | - Duochuan Li
- Department of Mycology, Shandong Agricultural University, Taian, China
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