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Li S, Shang XJ, Hou R. ©Relationship between endophytic fungal diversity and colonization and soil factors of cultured blueberry roots in Guizhou Province, Southwest China. Arch Microbiol 2024; 206:86. [PMID: 38302781 DOI: 10.1007/s00203-023-03808-1] [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: 10/04/2023] [Revised: 12/02/2023] [Accepted: 12/19/2023] [Indexed: 02/03/2024]
Abstract
Dark septate endophytes (DSEs) inhabit plant roots and soil in ecosystems and host plants worldwide. DSE colonization is influenced by cultivars, soil factors, and specific habitat conditions. The regular diversity of DSEs in blueberries in Guizhou, China, is still unclear. In this study, four cultivars (Gardenblue, Powderblue, O'Neal, and Legacy) in three areas (Gaopo, Majiang, and Fenggang) in Guizhou were used to identify DSEs by morphological and molecular biological methods and to clarify the relationship between DSE diversity and DSE colonization and soil factors of cultivated blueberries in Guizhou. The DSEs isolated from cultivated blueberry roots in 3 areas in Guizhou Province were different, belonging to 17 genera, and the dominant genera were Penicillium, Phialocephala, and Thozetella. DSEs isolated from Majiang belonged to 12 genera and 16 species, those from Gaopo belonged to 7 genera and 15 species, and those from Fenggang belonged to 5 genera and 7 species. Among the different blueberry varieties, 11 genera were isolated from O'Neal, 12 genera were isolated from Powderblue, 11 genera were isolated from Legacy and 13 genera were isolated from Gardenblue. Coniochaeta is endemic to O'Neal, Chaetomium and Curvularia are endemic to Powderblue, and Thielavia is endemic to Legacy. Correlation analysis showed that DSE diversity was significantly correlated with DSE colonization and soil factors.
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Affiliation(s)
- Si Li
- College of Forestry, Guizhou University, Guiyang, 550025, China
| | - Xiao-Jing Shang
- College of Forestry, Guizhou University, Guiyang, 550025, China
- Qian Dong Nan Institute of Forestry, Kaili, 556000, China
| | - Rui Hou
- College of Forestry, Guizhou University, Guiyang, 550025, China.
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Malicka M, Magurno F, Piotrowska-Seget Z. Plant association with dark septate endophytes: When the going gets tough (and stressful), the tough fungi get going. CHEMOSPHERE 2022; 302:134830. [PMID: 35525444 DOI: 10.1016/j.chemosphere.2022.134830] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/26/2022] [Accepted: 04/29/2022] [Indexed: 06/14/2023]
Abstract
Dark septate endophytes (DSEs) comprise a diverse and ubiquitous group of fungal generalists with broad habitat niches that robustly colonize the roots of plants in stressful environments. DSEs possess adaptation strategies that determine their high tolerance to heavy metal (HM) contamination, drought, and salinity. Most DSEs developed efficient melanin-dependent and melanin-independent mechanisms of HM detoxification and osmoprotection, including intracellular immobilization and extracellular efflux of HMs and excess ions, and the scavenging of reactive oxygen species. DSEs form mutualistic relationship with plants according to the hypothesis of "habitat-adapted associations", supporting the survival of their hosts under stressful conditions. As saprophytes, DSEs mineralize a complex soil substrate improving plants' nutrition and physiological parameters. They can protect the host plant from HMs by limiting HM accumulation in plant tissues and causing their sequestration in root cell walls as insoluble compounds, preventing further HM translocation to shoots. The presence of DSE in drought-affected plants can substantially ameliorate the physiology and architecture of root systems, improving their hydraulic properties. Plant growth-promoting features, supported by the versatility and easy culturing of DSEs, determine their high potential to enhance phytoremediation and revegetation projects for HM-contaminated, saline, and desertic lands reclamation.
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Affiliation(s)
- Monika Malicka
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28 Street, 40-032 Katowice, Poland.
| | - Franco Magurno
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28 Street, 40-032 Katowice, Poland
| | - Zofia Piotrowska-Seget
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellońska 28 Street, 40-032 Katowice, Poland
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Ruotsalainen AL, Kauppinen M, Wäli PR, Saikkonen K, Helander M, Tuomi J. Dark septate endophytes: mutualism from by-products? TRENDS IN PLANT SCIENCE 2022; 27:247-254. [PMID: 34756535 DOI: 10.1016/j.tplants.2021.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 08/31/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
Plant roots are abundantly colonized by dark septate endophytic (DSE) fungi in virtually all ecosystems. DSE fungi are functionally heterogeneous and their relationships with plants range from antagonistic to mutualistic. Here, we consider the role of by-product benefits in DSE and other root-fungal symbioses. We compared host investments against symbiont-derived benefits for the host plant and categorized these benefits as by-products or benefits requiring reciprocal investment from the host. By-product benefits may provide the variability required for the evolution of invested mutualisms between the host and symbiont. We suggest that DSE could be considered as 'a by-product mutualist transitional phase' in the evolution of cooperative mycorrhizal symbionts from saprotrophic fungi.
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Affiliation(s)
- Anna L Ruotsalainen
- Department of Ecology and Genetics, POB 3000, University of Oulu, FI-90014 Oulu, Finland.
| | - Miia Kauppinen
- Biodiversity Unit, University of Turku, FI-20014 Turku, Finland
| | - Piippa R Wäli
- Department of Ecology and Genetics, POB 3000, University of Oulu, FI-90014 Oulu, Finland; Natural Resources Institute Finland (Luke), Ounasjoentie 6, FI-96200 Rovaniemi, Finland
| | - Kari Saikkonen
- Biodiversity Unit, University of Turku, FI-20014 Turku, Finland
| | - Marjo Helander
- Department of Biology, University of Turku, FI-20014 Turku, Finland
| | - Juha Tuomi
- Meritie 43, FI-29900 Merikarvia, Finland
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Xie L, Bi Y, Ma S, Shang J, Hu Q, Christie P. Combined inoculation with dark septate endophytes and arbuscular mycorrhizal fungi: synergistic or competitive growth effects on maize? BMC PLANT BIOLOGY 2021; 21:498. [PMID: 34715790 PMCID: PMC8555310 DOI: 10.1186/s12870-021-03267-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Effects on maize were assessed of dual inoculation with arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) isolated from other plant species. METHODS Suspensions of DSE isolated from Stipa krylovii were prepared at different densities (2, 4, and 8 × 105 CFU mL- 1) and inoculated separately (AMF or DSE) or together (AMF + DSE), to explore their effects on maize growth. RESULTS Inoculation with AMF or medium and high densities of DSE and combined inoculation (AMF + DSE) increased plant above-ground growth and altered root morphology. Differences in plant growth were attributable to differences in DSE density, with negative DSE inoculation responsiveness at low density. AMF promoted plant above-ground growth more than DSE and the high density of DSE promoted root development more than AMF. Combined inoculation might lead to synergistic growth effects on maize at low density of DSE and competitive effects at medium and high DSE densities. CONCLUSIONS AMF and DSE co-colonized maize roots and they had positive effects on the host plants depending on DSE density. These findings indicate the optimum maize growth-promoting combination of AMF and DSE density and provide a foundation for further exploration of potentially synergistic mechanisms between AMF and DSE in physiological and ecological effects on host plants.
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Affiliation(s)
- Linlin Xie
- State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, China
| | - Yinli Bi
- State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, China.
- Institute of Ecological and Environmental Restoration in Mining Areas of West China, Xi'an University of Science and Technology, Xi'an, 710054, China.
| | - Shaopeng Ma
- State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, China
| | - Jianxuan Shang
- Shaanxi Coal and Chemical Industry Group Co., Ltd, Xi'an, 710076, China
| | - Qincheng Hu
- State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, China
| | - Peter Christie
- Institute of Ecological and Environmental Restoration in Mining Areas of West China, Xi'an University of Science and Technology, Xi'an, 710054, China
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Dacosta-Aguayo R, Wylie G, DeLuca J, Genova H. Changes in plant function and root mycobiome caused by flood and drought in a riparian tree. Behav Neurol 2020; 40:886-903. [PMID: 32175581 PMCID: PMC7775148 DOI: 10.1093/treephys/tpaa031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/21/2020] [Accepted: 02/26/2020] [Indexed: 06/10/2023] Open
Abstract
Under increasingly harsh climatic conditions, conservation of threatened species requires integrative studies to understand stress tolerance. Riparian Ulmus minor Mill. populations have been massively reduced by Dutch Elm disease (DED). However, resistant genotypes were selected to restore lost populations. To understand the acclimation mechanisms to the succession of abiotic stresses, ramets of five DED-tolerant U. minor genotypes were subjected to flood and subsequently to drought. Physiological and biochemical responses were evaluated together with shifts in root-fungal assemblages. During both stresses, plants exhibited a decline in leaf net photosynthesis and an increase in percentage loss of stem hydraulic conductivity and in leaf and root proline content. Stomatal closure was produced by chemical signals during flood and hydraulic signals during drought. Despite broad similarities in plant response to both stresses, root-mycobiome shifts were markedly different. The five genotypes were similarly tolerant to moderate drought, however, flood tolerance varied between genotypes. In general, flood did not enhance drought susceptibility due to fast flood recovery, nevertheless, different responses to drought after flood were observed between genotypes. Associations were found between some fungal taxonomic groups and plant functional traits varying with flood and drought (e.g. proline, chlorophyll and starch content) indicating that the thriving of certain taxa depends on host responses to abiotic stress.
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Affiliation(s)
- Rosalia Dacosta-Aguayo
- Neuropsychology and Neuroscience, Kessler Foundation, 120 Eagle Rock Avenue, Suite 100, East Hanover, New Jersey 07936, USA
- Department of Physical Medicine and Rehabilitation, Rutgers University, New Jersey Medical School, Newark, NJ 07101, USA
| | - Glenn Wylie
- Department of Physical Medicine and Rehabilitation, Rutgers University, New Jersey Medical School, Newark, NJ 07101, USA
- Rocco Ortenzio Neuroimaging Center, Kessler Foundation, West Orange, NJ, USA
| | - John DeLuca
- Neuropsychology and Neuroscience, Kessler Foundation, 120 Eagle Rock Avenue, Suite 100, East Hanover, New Jersey 07936, USA
- Department of Physical Medicine and Rehabilitation, Rutgers University, New Jersey Medical School, Newark, NJ 07101, USA
- Rocco Ortenzio Neuroimaging Center, Kessler Foundation, West Orange, NJ, USA
| | - Helen Genova
- Neuropsychology and Neuroscience, Kessler Foundation, 120 Eagle Rock Avenue, Suite 100, East Hanover, New Jersey 07936, USA
- Department of Physical Medicine and Rehabilitation, Rutgers University, New Jersey Medical School, Newark, NJ 07101, USA
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Moreau D, Bardgett RD, Finlay RD, Jones DL, Philippot L. A plant perspective on nitrogen cycling in the rhizosphere. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13303] [Citation(s) in RCA: 159] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Delphine Moreau
- Agroécologie, AgroSup Dijon INRA, Université Bourgogne Franche‐Comté Dijon France
| | - Richard D. Bardgett
- School of Earth and Environmental Sciences The University of Manchester Manchester UK
| | - Roger D. Finlay
- Department of Forest Mycology and Plant Pathology Uppsala Biocenter, Swedish University of Agricultural Sciences Uppsala Sweden
| | - David L. Jones
- Environment Centre Wales Bangor University Gwynedd UK
- UWA School of Agriculture and Environment University of Western Australia Crawley Western Australia Australia
| | - Laurent Philippot
- Agroécologie, AgroSup Dijon INRA, Université Bourgogne Franche‐Comté Dijon France
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Ruotsalainen AL. Dark Septate Endophytes (DSE) in Boreal and Subarctic Forests. ENDOPHYTES OF FOREST TREES 2018. [DOI: 10.1007/978-3-319-89833-9_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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