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Nerva L, Sandrini M, Moffa L, Velasco R, Balestrini R, Chitarra W. Breeding toward improved ecological plant-microbiome interactions. TRENDS IN PLANT SCIENCE 2022; 27:1134-1143. [PMID: 35803843 DOI: 10.1016/j.tplants.2022.06.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 06/04/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Domestication processes, amplified by breeding programs, have allowed the selection of more productive genotypes and more suitable crop lines capable of coping with the changing climate. Notwithstanding these advancements, the impact of plant breeding on the ecology of plant-microbiome interactions has not been adequately considered yet. This includes the possible exploitation of beneficial plant-microbe interactions to develop crops with improved performance and better adaptability to any environmental scenario. Here we discuss the exploitation of customized synthetic microbial communities in agricultural systems to develop more sustainable breeding strategies based on the implementation of multiple interactions between plants and their beneficial associated microorganisms.
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Affiliation(s)
- Luca Nerva
- Research Centre for Viticulture and Enology, Council for Agricultural Research and Economics (CREA-VE), Via XXVIII Aprile 26, 31015 Conegliano, (TV), Italy; National Research Council of Italy - Institute for Sustainable Plant Protection (CNR-IPSP), Strada delle Cacce, 73, 10135 Torino (TO), Italy
| | - Marco Sandrini
- Research Centre for Viticulture and Enology, Council for Agricultural Research and Economics (CREA-VE), Via XXVIII Aprile 26, 31015 Conegliano, (TV), Italy; University of Udine, Department of Agricultural, Food, Environmental and Animal Sciences, Via delle Scienze 206, 33100, Udine, (UD), Italy
| | - Loredana Moffa
- Research Centre for Viticulture and Enology, Council for Agricultural Research and Economics (CREA-VE), Via XXVIII Aprile 26, 31015 Conegliano, (TV), Italy; University of Udine, Department of Agricultural, Food, Environmental and Animal Sciences, Via delle Scienze 206, 33100, Udine, (UD), Italy
| | - Riccardo Velasco
- Research Centre for Viticulture and Enology, Council for Agricultural Research and Economics (CREA-VE), Via XXVIII Aprile 26, 31015 Conegliano, (TV), Italy
| | - Raffaella Balestrini
- National Research Council of Italy - Institute for Sustainable Plant Protection (CNR-IPSP), Strada delle Cacce, 73, 10135 Torino (TO), Italy.
| | - Walter Chitarra
- Research Centre for Viticulture and Enology, Council for Agricultural Research and Economics (CREA-VE), Via XXVIII Aprile 26, 31015 Conegliano, (TV), Italy; National Research Council of Italy - Institute for Sustainable Plant Protection (CNR-IPSP), Strada delle Cacce, 73, 10135 Torino (TO), Italy
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Fournier P, Pellan L, Barroso-Bergadà D, Bohan DA, Candresse T, Delmotte F, Dufour MC, Lauvergeat V, Le Marrec C, Marais A, Martins G, Masneuf-Pomarède I, Rey P, Sherman D, This P, Frioux C, Labarthe S, Vacher C. The functional microbiome of grapevine throughout plant evolutionary history and lifetime. ADV ECOL RES 2022. [DOI: 10.1016/bs.aecr.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Zhao S, Cheng M, Lin C, Liu H, Wang Z, Zhang K, Song S, Yang Q. Streptomyces luteolifulvus sp. nov., a novel actinomycete isolated from soil in Nanjing, China. Antonie van Leeuwenhoek 2021; 114:1829-1839. [PMID: 34460021 DOI: 10.1007/s10482-021-01643-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 08/13/2021] [Indexed: 10/20/2022]
Abstract
During the investigation of exploring potential sources of novel species and natural bioactives, a novel actinomycete, designated strain HIT-DPA4T, was isolated from a soil sample, which was collected from Nanjing, Jiangsu Province, PR China and characterized using a polyphasic approach. On the basis of 16S rRNA gene sequence similarities and the result of phylogenetic analysis, strain HIT-DPA4T was most closely related to Streptomyces cyaneus CGMCC 4.1671 T, and shared the highest sequence similarity of 98.76%. In addition, the cell walls of the species HIT-DPA4T contained LL-diaminopimelic acid as the diagnostic diamino acid and the whole-cell hydrolysates were identified as glucose and ribose, and the principal phospholipids were found to be diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol mannoside and phosphatidylmonomethylethanolamine. MK-9(H6) and MK-9(H4) were predominant menaquinones; and C16:0, anteiso-C15:0 and C15:0 as major cellular fatty acids of the organism HIT-DPA4T. Gene Ontology database analysis and antiSMASH server predicted results displayed that strain HIT-DPA4T was a promising classification units, which has various types of functions and contains multiple biosynthetic gene clusters with the similarity more than 80%. Multilocus sequence analysis (MLSA) of five housekeeping genes (atpD, gyrB, recA, rpoB and trpB) illustrated that Streptomyces luteolifulvus formed a separate branch in the genus Streptomyces. However, a combination of low level of DNA-DNA relatedness and physiological properties indicated that strain HIT-DPA4T can be distinguished from its phylogenetically related species Streptomyces cyaneus CGMCC 4.1671 T. Moreover, gene synteny research could be further differed organism HIT-DPA4T from similarity species. Therefore, the strain is concluded to represent a novel species of the genus Streptomyces, for which the name Streptomyces luteolifulvus sp. nov. is proposed. The type strain is HIT-DPA4T (= CGMCC 4.7558 T = TISTR 2751 T).
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Affiliation(s)
- Shanshan Zhao
- School of Life Science and Technology, Harbin Institute of Technology, No. 2 Yikuang Street, Nangang District, Harbin, 150080, People's Republic of China
| | - Ming Cheng
- School of Life Science and Technology, Harbin Institute of Technology, No. 2 Yikuang Street, Nangang District, Harbin, 150080, People's Republic of China
| | - Congyu Lin
- School of Life Science and Technology, Harbin Institute of Technology, No. 2 Yikuang Street, Nangang District, Harbin, 150080, People's Republic of China
| | - He Liu
- School of Life Science and Technology, Harbin Institute of Technology, No. 2 Yikuang Street, Nangang District, Harbin, 150080, People's Republic of China
| | - Zhengran Wang
- School of Life Science and Technology, Harbin Institute of Technology, No. 2 Yikuang Street, Nangang District, Harbin, 150080, People's Republic of China
| | - Kai Zhang
- School of Life Science and Technology, Harbin Institute of Technology, No. 2 Yikuang Street, Nangang District, Harbin, 150080, People's Republic of China
| | - Simin Song
- School of Life Science and Technology, Harbin Institute of Technology, No. 2 Yikuang Street, Nangang District, Harbin, 150080, People's Republic of China
| | - Qian Yang
- School of Life Science and Technology, Harbin Institute of Technology, No. 2 Yikuang Street, Nangang District, Harbin, 150080, People's Republic of China.
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Murphy R, Benndorf R, de Beer ZW, Vollmers J, Kaster AK, Beemelmanns C, Poulsen M. Comparative Genomics Reveals Prophylactic and Catabolic Capabilities of Actinobacteria within the Fungus-Farming Termite Symbiosis. mSphere 2021; 6:e01233-20. [PMID: 33658277 PMCID: PMC8546716 DOI: 10.1128/msphere.01233-20] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/01/2021] [Indexed: 11/20/2022] Open
Abstract
Actinobacteria, one of the largest bacterial phyla, are ubiquitous in many of Earth's ecosystems and often act as defensive symbionts with animal hosts. Members of the phylum have repeatedly been isolated from basidiomycete-cultivating fungus-farming termites that maintain a monoculture fungus crop on macerated dead plant substrate. The proclivity for antimicrobial and enzyme production of Actinobacteria make them likely contributors to plant decomposition and defense in the symbiosis. To test this, we analyzed the prophylactic (biosynthetic gene cluster [BGC]) and metabolic (carbohydrate-active enzyme [CAZy]) potential in 16 (10 existing and six new genomes) termite-associated Actinobacteria and compared these to the soil-dwelling close relatives. Using antiSMASH, we identified 435 BGCs, of which 329 (65 unique) were similar to known compound gene clusters, while 106 were putatively novel, suggesting ample prospects for novel compound discovery. BGCs were identified among all major compound categories, including 26 encoding the production of known antimicrobial compounds, which ranged in activity (antibacterial being most prevalent) and modes of action that might suggest broad defensive potential. Peptide pattern recognition analysis revealed 823 (43 unique) CAZymes coding for enzymes that target key plant and fungal cell wall components (predominantly chitin, cellulose, and hemicellulose), confirming a substantial degradative potential of these bacteria. Comparison of termite-associated and soil-dwelling bacteria indicated no significant difference in either BGC or CAZy potential, suggesting that the farming termite hosts may have coopted these soil-dwelling bacteria due to their metabolic potential but that they have not been subject to genome change associated with symbiosis.IMPORTANCEActinobacteria have repeatedly been isolated in fungus-farming termites, and our genome analyses provide insights into the potential roles they may serve in defense and for plant biomass breakdown. These insights, combined with their relatively higher abundances in fungus combs than in termite gut, suggest that they are more likely to play roles in fungus combs than in termite guts. Up to 25% of the BGCs we identify have no similarity to known clusters, indicating a large potential for novel chemistry to be discovered. Similarities in metabolic potential of soil-dwelling and termite-associated bacteria suggest that they have environmental origins, but their consistent presence with the termite system suggests their importance for the symbiosis.
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Affiliation(s)
- Robert Murphy
- University of Copenhagen, Department of Biology, Section for Ecology and Evolution, Copenhagen East, Denmark
| | - René Benndorf
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Jena, Germany
| | - Z Wilhelm de Beer
- Department of Microbiology and Plant Pathology, Forestry and Agriculture Biotechnology Institute, University of Pretoria, Pretoria, South Africa
| | - John Vollmers
- Institute for Biological Interfaces (IBG 5), Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - Anne-Kristin Kaster
- Institute for Biological Interfaces (IBG 5), Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany
| | - Christine Beemelmanns
- Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute, Jena, Germany
| | - Michael Poulsen
- University of Copenhagen, Department of Biology, Section for Ecology and Evolution, Copenhagen East, Denmark
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Vandana UK, Rajkumari J, Singha LP, Satish L, Alavilli H, Sudheer PD, Chauhan S, Ratnala R, Satturu V, Mazumder PB, Pandey P. The Endophytic Microbiome as a Hotspot of Synergistic Interactions, with Prospects of Plant Growth Promotion. BIOLOGY 2021; 10:101. [PMID: 33535706 PMCID: PMC7912845 DOI: 10.3390/biology10020101] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 12/16/2022]
Abstract
The plant root is the primary site of interaction between plants and associated microorganisms and constitutes the main components of plant microbiomes that impact crop production. The endophytic bacteria in the root zone have an important role in plant growth promotion. Diverse microbial communities inhabit plant root tissues, and they directly or indirectly promote plant growth by inhibiting the growth of plant pathogens, producing various secondary metabolites. Mechanisms of plant growth promotion and response of root endophytic microorganisms for their survival and colonization in the host plants are the result of complex plant-microbe interactions. Endophytic microorganisms also assist the host to sustain different biotic and abiotic stresses. Better insights are emerging for the endophyte, such as host plant interactions due to advancements in 'omic' technologies, which facilitate the exploration of genes that are responsible for plant tissue colonization. Consequently, this is informative to envisage putative functions and metabolic processes crucial for endophytic adaptations. Detection of cell signaling molecules between host plants and identification of compounds synthesized by root endophytes are effective means for their utilization in the agriculture sector as biofertilizers. In addition, it is interesting that the endophytic microorganism colonization impacts the relative abundance of indigenous microbial communities and suppresses the deleterious microorganisms in plant tissues. Natural products released by endophytes act as biocontrol agents and inhibit pathogen growth. The symbiosis of endophytic bacteria and arbuscular mycorrhizal fungi (AMF) affects plant symbiotic signaling pathways and root colonization patterns and phytohormone synthesis. In this review, the potential of the root endophytic community, colonization, and role in the improvement of plant growth has been explained in the light of intricate plant-microbe interactions.
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Affiliation(s)
- Udaya Kumar Vandana
- Department of Biotechnology, Assam University Silchar, Assam 788011, India; (U.K.V.); (P.B.M.)
| | - Jina Rajkumari
- Department of Microbiology, Assam University Silchar, Assam 788011, India; (J.R.); (L.P.S.)
| | - L. Paikhomba Singha
- Department of Microbiology, Assam University Silchar, Assam 788011, India; (J.R.); (L.P.S.)
| | - Lakkakula Satish
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering and the Ilse Katz Center for Meso and Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel;
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Hemasundar Alavilli
- Department of Biochemistry and Molecular Biology, College of Medicine, Korea Molecular Medicine and Nutrition Research Institute, Korea University, Seoul 02841, Korea;
| | - Pamidimarri D.V.N. Sudheer
- Amity Institute of Biotechnology, Amity University Chhattisgarh, Raipur 493225, India; (P.D.V.N.S.); (S.C.)
| | - Sushma Chauhan
- Amity Institute of Biotechnology, Amity University Chhattisgarh, Raipur 493225, India; (P.D.V.N.S.); (S.C.)
| | - Rambabu Ratnala
- TATA Institute for Genetics and Society, Bangalore 560065, India;
| | - Vanisri Satturu
- Institute of Biotechnology, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad 500030, India;
| | - Pranab Behari Mazumder
- Department of Biotechnology, Assam University Silchar, Assam 788011, India; (U.K.V.); (P.B.M.)
| | - Piyush Pandey
- Department of Microbiology, Assam University Silchar, Assam 788011, India; (J.R.); (L.P.S.)
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Ashfield-Crook NR, Woodward Z, Soust M, Kurtböke Dİ. Bioactive Streptomycetes from Isolation to Applications: A Tasmanian Potato Farm Example. Methods Mol Biol 2021; 2232:219-249. [PMID: 33161551 DOI: 10.1007/978-1-0716-1040-4_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The genus Streptomyces constitutes approximately 50% of all soil actinomycetes, playing a significant role in the soil microbial community through vital functions including nutrient cycling, production of bioactive metabolites, disease-suppression and plant growth promotion. Streptomyces produce many bioactive compounds and are prime targets for industrial and biotechnological applications. In addition to their agrobiological roles, some Streptomyces spp. can, however, be phytopathogenic, examples include, common scab of potato that causes economic losses worldwide. Currently used chemical control measures can have detrimental effect to environmental and human health as a result alternative methods to chemical disease control are being investigated. One alternative is the use of streptomycete specific phages to remove this pathogenic bacterium before it can cause the disease on potatoes. However, due to co-existence of non-common scab-causing species belonging to the genus Streptomyces, phage treatment is likely to affect a wide range of non-target streptomycete species including the beneficial ones in the soil. Therefore, before such treatment starts the host range of the phages within the targeted family of bacteria should be determined. In a study conducted using soil samples from a Tasmanian potato farm, streptomycetes were isolated and tested against streptomycete-specific phages. Their antifungal activity was also determined using multiple assays against selected phytopathogens. The four strongest antifungal activity-displaying isolates were further tested for their persistent antifungal activity using wheat and Fusarium solani in a pot trial. A second pot trial was also conducted to evaluate whether the beneficial streptomycetes were affected by streptophage treatment and whether their removal via the phage battery would cause opportunistic fungal infections to plants in soil. The streptomycetes prevented the reduction in wheat shoot weight caused by F. solani indicating their disease suppressive effect. However, when phages were added into the pots, the growth of wheat was detrimentally impacted. This finding might suggest that the reduced presence of antifungal streptomycetes via phage-induced lysis might encourage opportunistic fungal infections in plants.
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Affiliation(s)
- Nina R Ashfield-Crook
- GeneCology Research Centre and the School of Science and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD, Australia
| | | | - Martin Soust
- Terragen Biotech Pty. Ltd., Coolum Beach, QLD, Australia
| | - D İpek Kurtböke
- GeneCology Research Centre and the School of Science and Engineering, University of the Sunshine Coast, Maroochydore DC, QLD, Australia.
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Gong X, Xiang W, Cao X, Yu Y, Hao Y, Li L, Wang Q, Zou H, Qian C. Microbispora cellulosiformans sp. nov., a novel actinomycete with cellulase activity isolated from soil in the cold region. Antonie Van Leeuwenhoek 2020; 113:2053-2062. [DOI: 10.1007/s10482-020-01477-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 09/26/2020] [Indexed: 10/23/2022]
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Sheik GB, Alhumaidy AA, Abdel Raheim AIA, Alzeyadi ZA, AlGhonaim MI. Taxonomic Characterizations of Soil Streptomyces cavourensis DW102 and Its Activity against Fungal Pathogens. J Pharm Bioallied Sci 2020; 12:462-467. [PMID: 33679094 PMCID: PMC7909053 DOI: 10.4103/jpbs.jpbs_304_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/06/2020] [Accepted: 07/07/2020] [Indexed: 11/08/2022] Open
Abstract
Background: Streptomyces spp. are soil bacteria that have commercial value from which numerous secondary metabolites such as antifungal compounds have been derived. There is growing concern that antifungal resistance is on the rise, and soil Streptomyces from various geographical places might produce novel antifungal molecules. The aim of this study was to characterize and identify the actinomycetes strain namely Streptomyces isolate DW102, and to evaluate its antimicrobial activity against nosocomial fungal pathogens. Materials and Methods: Streptomyces isolate DW102 was identified based on morphological, cultural, physiological, and biochemical properties, together with 16S rRNA sequence. Its antifungal activity was determined by agar well-diffusion assays. Results: The isolate DW102 phenotypic and molecular characterization was identified as Streptomyces cavourensis DW102 and sequencing results were deposited in GenBank under accession number MK508855. Furthermore, the fermented broth of Streptomyces isolate DW102 inhibited the growth of Aspergillus niger and Candida albicans in vitro. Conclusions: Phenotypic, molecular, and phylogenetic analysis of DW102 identified the strain to be S. cavourensis. The antifungal assay showed that DW102 fermentation broth was active against both C. albicans and A. niger in vitro. Further studies are required to use the Streptomyces isolate DW102 as a promising source for the development of antifungal drugs.
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Affiliation(s)
- Gouse Basha Sheik
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences (Male), Shaqra University, Ad-Dawadmi, Saudi Arabia
| | - Aroob Abdullah Alhumaidy
- Department of Infectious Diseases, Saudi Center for Disease Prevention and Control (SCDC), Riyadh, Saudi Arabia
| | - Ali Ismail Ali Abdel Raheim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences (Male), Shaqra University, Ad-Dawadmi, Saudi Arabia
| | - Zeyad Abdullah Alzeyadi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences (Male), Shaqra University, Ad-Dawadmi, Saudi Arabia
| | - Mohammed Ibrahim AlGhonaim
- Department of Microbiology, College of Biological Sciences, Imam Muhammed Ibn Saud Islamic University, Riyadh, Saudi Arabia
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Actinobacteria Associated with Vineyard Soils of Algeria: Classification, Antifungal Potential Against Grapevine Trunk Pathogens and Plant Growth-Promoting Features. Curr Microbiol 2020; 77:2831-2840. [PMID: 32594221 DOI: 10.1007/s00284-020-02097-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 06/18/2020] [Indexed: 12/16/2022]
Abstract
Grapevine trunk diseases (GTDs) are among the most destructive diseases of vineyards worldwide, including Algeria. In the fungal complex involved in GTD symptoms, referred as grapevine trunk-pathogens, Paeomoniella chlamydospora and Phaeoacremonium minimum have a determining infecting role as pioneer fungi. Due to the lack of efficiency of conventional disease management practices, a search for alternative strategies, such as biocontrol, is needed. Taking the approach of looking for biocontrol candidates in the environment surrounding the plant, the present study explored actinobacteria diversity within vineyard soils of six grape-producing regions in Algeria. Based on their 16S rRNA gene sequence, identification and phylogenic analysis were performed on the 40 isolates of actinobacteria obtained. Forty percent of strains were attached to Streptomyces, including two evidenced new species, and 32.5% were affiliated to Saccharothrix. The other less represented genera were Actinoplanes, Nocardia, Nocardiopsis, Lentzea, Nonomuraea, Promicromonospora, Saccharopolyspora and Streptosporangium. Screening based on antagonistic and plant growth promotion (PGP) abilities of the strains showed that 47.5% of the isolates exhibited appreciable antagonistic activities against both Pa. chlamydospora and Pm. minimum, with the two best strains being Streptomyces sp. Ms18 and Streptomyces sp. Sb11. Screening for plant growth promoting properties demonstrated that majority of the strains were able to produce indole acetic acid, siderophores, ammonia, ACC deaminase, cellulase and amylase, and fix N2. Through a PGP-traits-based cluster analysis, the most interesting strains were highlighted. Taking into account both antagonistic and PGP properties, Streptomyces sp Sb11 was selected as the most promising candidate for further evaluations of its efficiency in a GTDs context.
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Musa Z, Ma J, Egamberdieva D, Abdelshafy Mohamad OA, Abaydulla G, Liu Y, Li WJ, Li L. Diversity and Antimicrobial Potential of Cultivable Endophytic Actinobacteria Associated With the Medicinal Plant Thymus roseus. Front Microbiol 2020; 11:191. [PMID: 32226412 PMCID: PMC7080825 DOI: 10.3389/fmicb.2020.00191] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 01/27/2020] [Indexed: 11/30/2022] Open
Abstract
We report for the first time the isolation of endophytic actinobacteria associated with wild populations of the Chinese medicinal herb Thymus roseus Schipcz obtained from the arid land in Ili and Tacheng of the Xinjiang Province, China. Strains were isolated by special pretreatment of plant tissues and identified based on their 16S rRNA gene sequences, and their antimicrobial activities in vitro were evaluated. A total of 126 endophytic actinobacteria belonging to two classes, eight orders, 14 families, and 24 genera were isolated from different organs at the Ili and Tacheng sites. In addition, the diversity of culturable endophytic actinobacteria genera was higher at Tacheng site (n = 71, 56.35%) than the Ili site (n = 55, 43.65%). A neighbor-joining tree of 126 isolated actinobacteria showing the phylogenetic relationships based on 16S rRNA gene sequences and the genus Streptomyces was the most dominant isolate. The number of endophytic actinobacteria genera obtained from root tissues (n = 54, 42.86%) was higher compared to stem (n = 35, 27.78%) and leaf tissue (n = 37, 29.36%). Among 126 endophytic actinobacteria, 54 strains were antagonistic against at least one or more indicator organisms in vitro. Notably, most strains of Streptomyces proved antagonistic activities. For example, strain T4SB028, namely Streptomyces polyantibioticus, showed the highest inhibition ratio reached 67.06, 64.20, and 70.55% against Alternaria solani, Valsa malicola, and Valsa mali, respectively. The results demonstrate that about 30.95%, 23.01% of the tested endophytic actinobacteria were capable of producing siderophores and chitinase, respectively. Additionally, the results of the amplification of biosynthetic genes polyketide synthetase (PKS-I) and non-ribosomal peptide synthetase (NRPS) indicated that at least one antibiotic biosynthetic gene was detected in 27 (50%) of the tested strains. Our result emphasizes that the endophytic actinobacteria communities are different based on the plant tissues and the geographical environment of the sampled area. Thus, we conclude that T. roseus Schipcz. provided a rich source of endophytic actinobacteria that exhibited a broad-spectrum antimicrobial agent.
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Affiliation(s)
- Zulpiya Musa
- CAS Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Ürümqi, China.,Department of Medicine, College of Kashgar Vocational Technology, Kashgar, China
| | - Jinbiao Ma
- CAS Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Ürümqi, China
| | - Dilfuza Egamberdieva
- CAS Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Ürümqi, China.,Faculty of Biology, National University of Uzbekistan, Tashkent, Uzbekistan
| | - Osama Abdalla Abdelshafy Mohamad
- CAS Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Ürümqi, China.,Department of Environmental Protection, Faculty of Environmental Agricultural Sciences, Arish University, Arish, Egypt
| | - Gulsumay Abaydulla
- Xinjiang Laboratory of Resources Microbiology, College of Life Sciences and Technology, Xinjiang University, Ürümqi, China
| | - Yonghong Liu
- CAS Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Ürümqi, China
| | - Wen-Jun Li
- CAS Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Ürümqi, China.,State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Li Li
- CAS Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Ürümqi, China
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Evaluation of Biocontrol Activities of Streptomyces spp. against Rice Blast Disease Fungi. Pathogens 2020; 9:pathogens9020126. [PMID: 32075342 PMCID: PMC7168291 DOI: 10.3390/pathogens9020126] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 12/28/2022] Open
Abstract
Rhizosphere bacteria can positively influence plant growth by direct and indirect mechanisms. A total of 112 bacterial strains were isolated from the rhizosphere of rice and tested for plant beneficial activities such as siderophore production, cell-wall-degrading enzyme production, hydrogen cyanide (HCN) production and antifungal activity against rice blast disease fungus. The actinomycetes count was 3.8 × 106 CFU/g soil. Streptomyces strains PC 12, D 4.1, D 4.3 and W1 showed strong growth inhibition of blast disease fungus, Pyricularia sp. (87.3%, 82.2%, 80.0% and 80.5%) in vitro. Greenhouse experiments revealed that rice plants treated with Streptomyces strain PC 12 recorded maximum plant height, root length and root dry weight compared to the control. Taxonomic characterization of this strain on the basis of 16S rRNA gene sequence led to its identification as Streptomyces palmae PC 12. Streptomyces palmae PC 12 may be used as biofertilizer to enhance the growth and productivity of commercially important rice cultivar RD6 and the biocontrol of blast disease fungus.
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12
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Pacifico D, Squartini A, Crucitti D, Barizza E, Lo Schiavo F, Muresu R, Carimi F, Zottini M. The Role of the Endophytic Microbiome in the Grapevine Response to Environmental Triggers. FRONTIERS IN PLANT SCIENCE 2019; 10:1256. [PMID: 31649712 PMCID: PMC6794716 DOI: 10.3389/fpls.2019.01256] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 09/09/2019] [Indexed: 05/25/2023]
Abstract
Endophytism within Vitis represents a topic of critical relevance due to the multiple standpoints from which it can be approached and considered. From the biological and botanical perspectives, the interaction between microorganisms and perennial woody plants falls within the category of stable relationships from which the plants can benefit in multiple ways. The life cycle of the host ensures persistence in all seasons, repeated chances of contact, and consequent microbiota accumulation over time, leading to potentially high diversity compared with that of herbaceous short-lived plants. Furthermore, grapevines are agriculturally exploited, highly selected germplasms where a profound man-driven footprint has indirectly and unconsciously shaped the inner microbiota through centuries of cultivation and breeding. Moreover, since endophyte metabolism can contribute to that of the plant host and its fruits' biochemical composition, the nature of grapevine endophytic taxa identities, ecological attitudes, potential toxicity, and clinical relevance are aspects worthy of a thorough investigation. Can endophytic taxa efficiently defend grapevines by acting against pests or confer enough fitness to the plants to endure attacks? What are the underlying mechanisms that translate into this or other advantages in the hosting plant? Can endophytes partially redirect plant metabolism, and to what extent do they act by releasing active products? Is the inner microbial colonization necessary priming for a cascade of actions? Are there defined environmental conditions that can trigger the unleashing of key microbial phenotypes? What is the environmental role in providing the ground biodiversity by which the plant can recruit microsymbionts? How much and by what practices and strategies can these symbioses be managed, applied, and directed to achieve the goal of a better sustainable viticulture? By thoroughly reviewing the available literature in the field and critically examining the data and perspectives, the above issues are discussed.
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Affiliation(s)
- Davide Pacifico
- Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), Corso Calatafimi, Palermo, Italy
| | - Andrea Squartini
- Department of Agronomy, Food, Natural Resources, Animals and the Environment, University of Padua, Legnaro, Italy
| | - Dalila Crucitti
- Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), Corso Calatafimi, Palermo, Italy
| | | | | | - Rosella Muresu
- Institute for the Animal Production System in Mediterranean Environment (ISPAAM), National Research Council (CNR), Sassari, Italy
| | - Francesco Carimi
- Institute of Biosciences and BioResources (IBBR), National Research Council of Italy (CNR), Corso Calatafimi, Palermo, Italy
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13
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Luo L, Guo C, Wang L, Zhang J, Deng L, Luo K, Huang H, Liu Y, Mei X, Zhu S, Yang M. Negative Plant-Soil Feedback Driven by Re-assemblage of the Rhizosphere Microbiome With the Growth of Panax notoginseng. Front Microbiol 2019; 10:1597. [PMID: 31404300 PMCID: PMC6676394 DOI: 10.3389/fmicb.2019.01597] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 06/26/2019] [Indexed: 01/22/2023] Open
Abstract
There is a concerted understanding of the accumulation of soil pathogens as the major driving factor of negative plant-soil feedback (NPSF). However, our knowledge of the connection between plant growth, pathogen build-up and soil microbiome assemblage is limited. In this study, significant negative feedback between the soil and sanqi (Panax notoginseng) was found, which were caused by the build-up of the soil-borne pathogens Fusarium oxysporum, F. solani, and Monographella cucumerina. Soil microbiome analysis revealed that the rhizospheric fungal and bacterial communities were changed with the growth of sanqi. Deep analysis of the phylum and genus levels corroborated that rhizospheric fungal Ascomycota, including the soil-borne pathogens F. oxysporum, F. solani, and especially M. cucumerina, were significantly enriched with the growth of sanqi. However, the bacteria Firmicutes and Acidobacteria, including the genera Pseudomonas, Bacillus, Acinetobacter and Burkholderia, were significantly suppressed with the growth of sanqi. Using microbial isolation and in vitro dual culture tests, we found that most isolates derived from the suppressed bacterial genera showed strong antagonistic ability against the growth of sanqi soil-borne pathogens. Interestingly, inoculation of these suppressed isolates in consecutively cultivated soil could significantly alleviate NPSF. In summary, sanqi growth can suppress antagonistic bacteria through re-assemblage of the rhizosphere microbiome and cause the accumulation of soil-borne pathogens, eventually building negative feedback loops between the soil and plants.
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Affiliation(s)
- Lifen Luo
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Cunwu Guo
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Luotao Wang
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Junxing Zhang
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Linmei Deng
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Kaifeng Luo
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China
| | - Huichuan Huang
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Yixiang Liu
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Xinyue Mei
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Shusheng Zhu
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
| | - Min Yang
- Key Laboratory for Agro-biodiversity and Pest Control of Ministry of Education, Yunnan Agricultural University, Kunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, China
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14
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Liang H, Wang X, Yan J, Luo L. Characterizing the Intra-Vineyard Variation of Soil Bacterial and Fungal Communities. Front Microbiol 2019; 10:1239. [PMID: 31214155 PMCID: PMC6554343 DOI: 10.3389/fmicb.2019.01239] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 05/17/2019] [Indexed: 12/20/2022] Open
Abstract
Vineyard soil microbial communities potentially mediate grapevine growth, grape production as well as wine terroir. Simultaneously assessing shifts of microbial community composition at the intra-vineyard scale allows us to decouple correlations among environmental variables, thus providing insights into vineyard management. Here we investigated bacterial and fungal community compositions and their relationships with edaphic properties in soils collected from a commercial vineyard at four different soil depths (0-5, 5-10, 10-20, and 20-40 cm). Soil organic carbon (SOC) content, invertase activity and phosphatase activity decreased along depth gradient in the 0-20 cm soil fraction (P < 0.001). The soil bacterial biomass and α-diversity were significantly higher than those of fungi (P ≤ 0.001). Statistical analyses revealed that SOC content, pH, C/N ratio and total phosphorus (TP) were significant determinants of soil bacterial (R = 0.494, P = 0.001) and fungal (R = 0.443, P = 0.001) community structure. The abundance of dominated bacterial phyla (Proteobacteria, Acidobacteria and Actinobacteria) and fungal phyla (Ascomycota, Zygomycota and Basidiomycota) slightly varied among all soil samples. Genus Lactococcus, which comprised 2.72% of the soil bacterial community, showed increasing pattern with depth. Importantly, Candidatus Nitrososphaera, Monographella and Fusarium were also detected with high abundances in soil samples, indicating their ecological function in soil nitrogen cycle and the potential risk in grapevine disease. Overall, this work detected the intra-vineyard variation of bacterial and fungal communities and their relationships with soil characteristics, which was beneficial to vineyard soil management and grapevine disease prevention.
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Affiliation(s)
- Hebin Liang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Xiaowen Wang
- Food Testing Institute, Shenzhen Academy of Metrology and Quality Inspection, Shenzhen, China.,National Nutrition Food Testing Center, Shenzhen, China
| | - Junwei Yan
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Lixin Luo
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
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15
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Esmaeel Q, Jacquard C, Clément C, Sanchez L, Ait Barka E. Genome sequencing and traits analysis of Burkholderia strains reveal a promising biocontrol effect against grey mould disease in grapevine (Vitis vinifera L.). World J Microbiol Biotechnol 2019; 35:40. [DOI: 10.1007/s11274-019-2613-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 02/01/2019] [Indexed: 12/11/2022]
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16
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Draft Genome Sequence of Burkholderia reimsis BE51, a Plant-Associated Bacterium Isolated from Agricultural Rhizosphere. Microbiol Resour Announc 2018; 7:MRA00978-18. [PMID: 30533687 PMCID: PMC6256556 DOI: 10.1128/mra.00978-18] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 09/06/2018] [Indexed: 01/18/2023] Open
Abstract
Burkholderia reimsis BE51, isolated from maize rhizosphere, has a promising biocontrol activity against a set of phytopathogens. Here, we report its draft genome sequence with the aim of providing insight into the potentially produced secondary metabolites and genes related to plant growth-promoting and biocontrol properties. Burkholderia reimsis BE51, isolated from maize rhizosphere, has a promising biocontrol activity against a set of phytopathogens. Here, we report its draft genome sequence with the aim of providing insight into the potentially produced secondary metabolites and genes related to plant growth-promoting and biocontrol properties.
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17
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Mohamad OAA, Li L, Ma JB, Hatab S, Xu L, Guo JW, Rasulov BA, Liu YH, Hedlund BP, Li WJ. Evaluation of the Antimicrobial Activity of Endophytic Bacterial Populations From Chinese Traditional Medicinal Plant Licorice and Characterization of the Bioactive Secondary Metabolites Produced by Bacillus atrophaeus Against Verticillium dahliae. Front Microbiol 2018; 9:924. [PMID: 29867835 PMCID: PMC5954123 DOI: 10.3389/fmicb.2018.00924] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 04/20/2018] [Indexed: 12/13/2022] Open
Abstract
Endophytic bacteria associated with medicinal plants possess unique strategies that enhance growth and suvival of host plants, many of which are mediated by distinctive secondary metabolites. These bacteria and their secondary metabolites are important subjects for both basic and applied research aimed at sustainable agriculture. In the present study, 114 endophytic strains isolated from the wild ethnomedicinal plant Glycyrrhiza uralensis (licorice) were screened for their in vitro antimicrobial activities against common fungal pathogens of tomato (Fusarium oxysporum f. sp., Fulvia fulva, Alternaria solani), cotton (Fusarium oxysporum f. sp. Vesinfectum, Verticillium dahliae), pomegranite (Ceratocystis fimbriata), Cymbidinium (Colletotrichum gloeosporioides), and Tsao-ko (Pestalotiopsis microspora and Fusarium graminearum) and the common bacteria Staphylococcus aureus, Bacillus cereus, Salmonella enteritidis, and Escherichia coli. Several Bacillus strains, particularly Bacillus atrophaeus and Bacillus mojavensis, had a broad spectrum of antifungal and antibacterial activity. A total of 16 strains, selected based on broad antimicrobial activity, were shown to contain at least one putative secondary metabolite-encoding gene (i.e., polyketide synthase or non-ribosomal peptide synthetase) and/or one lytic enzyme (i.e., protease, cellulase, lipase, chitinase), which may be important mediators of antagonistic activity against pathogens. Five strains, representing Bacillus atrophaeus and Bacillus mojavensis, were selected for plant growth chamber experiments based on strong in vitro antifungal activities. All five strains significantly reduced disease severity in Arabidopsis thaliana plants challenged with V. dahlia infection. Gas-chromatography/mass-spectrometry analysis of cell-free extracts of Bacillus atrophaeus strain XEGI50 showed that at least 13 compounds were produced only during co-cultivation with V. dahlia, including putative compounds known to have antimicrobial activity, such as 1,2-benzenedicarboxylic acid, bis (2-methylpropyl) ester; 9,12-octadecadienoic acid (Z,Z)-, methyl ester; 9-octadecenoic acid, methyl ester, (E)-; and decanedioic acid, bis(2-ethylhexyl) ester. To our knowledge, this study is the first to report that bacteria isolated from G. uralensis have biocontrol abilities. Our findings provide new insights into the antimicrobial activities of natural endophytes, particularly B. atrophaeus, and suggest this species may a promising candidate as a biocontrol agent to confer resistance to Verticillium wilt disease and other phytopathogens in cotton and other crops.
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Affiliation(s)
- Osama A. A. Mohamad
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Environmental Science Department, Institute of Environmental Studies, Arish University, El-Arish, Egypt
| | - Li Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- School of Life Sciences, University of Nevada, Las Vegas, Las Vegas, NV, United States
| | - Jin-Biao Ma
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Shaimaa Hatab
- Department of Food Science and Technology, College of Environmental Agricultural Sciences, Arish University, El-Arish, Egypt
| | - Lin Xu
- Key Laboratory of Hexi Corridor Resources Utilization, Hexi University, Zhangye, China
| | - Jian-Wei Guo
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Key Laboratory of Crops with High Quality and Efficient Cultivation and Security Control, Yunnan Higher Education Institutions, Honghe University, Mengzi, China
| | - Bakhtiyor A. Rasulov
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Institute of Genetics and Plant Experimental Biology, Uzbekistan Academy of Sciences, Tashkent, Uzbekistan
| | - Yong-Hong Liu
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Brian P. Hedlund
- School of Life Sciences, University of Nevada, Las Vegas, Las Vegas, NV, United States
| | - Wen-Jun Li
- Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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18
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Álvarez-Pérez JM, González-García S, Cobos R, Olego MÁ, Ibañez A, Díez-Galán A, Garzón-Jimeno E, Coque JJR. Use of Endophytic and Rhizosphere Actinobacteria from Grapevine Plants To Reduce Nursery Fungal Graft Infections That Lead to Young Grapevine Decline. Appl Environ Microbiol 2017; 83:e01564-17. [PMID: 28986378 PMCID: PMC5717199 DOI: 10.1128/aem.01564-17] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 10/03/2017] [Indexed: 11/20/2022] Open
Abstract
Endophytic and rhizosphere actinobacteria isolated from the root system of 1-year-old grafted Vitis vinifera plants were evaluated for their activities against fungi that cause grapevine trunk diseases. A total of 58 endophytic and 94 rhizosphere isolates were tested. Based on an in vitro bioassay, 15.5% of the endophytic isolates and 30.8% of the rhizosphere isolates exhibited antifungal activity against the fungal pathogen Diplodia seriata, whereas 13.8% of the endophytic isolates and 16.0% of the rhizosphere isolates showed antifungal activity against Dactylonectria macrodidyma (formerly Ilyonectria macrodidyma). The strains which showed the greatest in vitro efficacy against both pathogens were further analyzed for their ability to inhibit the growth of Phaeomoniella chlamydospora and Phaeoacremonium minimum (formerly Phaeoacremonium aleophilum). Based on their antifungal activity, three rhizosphere isolates and three endophytic isolates were applied on grafts in an open-root field nursery in a 3-year trial. The field trial led to the identification of one endophytic strain, Streptomyces sp. VV/E1, and two rhizosphere isolates, Streptomyces sp. VV/R1 and Streptomyces sp. VV/R4, which significantly reduced the infection rates produced by the fungal pathogens Dactylonectria sp., Ilyonectria sp., P. chlamydospora, and P. minimum, all of which cause young grapevine decline. The VV/R1 and VV/R4 isolates also significantly reduced the mortality level of grafted plants in the nursery. This study shows that certain actinobacteria could represent a promising new tool for controlling fungal trunk pathogens that infect grapevine plants through the root system in nurseries.IMPORTANCE Grapevine trunk diseases are a major threat to the wine and grape industry worldwide. They cause a significant reduction in yields as well as in grape quality, and they can even cause plant death. Trunk diseases are caused by fungal pathogens that enter through pruning wounds and/or the root system. Although different strategies have recently been developed to protect pruning wounds using antifungal compounds (natural or synthetic) or biocontrol agents, no tools are yet available for controlling soil pathogens that infect plants through their root system. This study shows that different actinobacterial isolates, when applied to grafts in a nursery, can significantly reduce the infection rate caused by fungal pathogens that enter through the root system. This is a new, promising, and green alternative for preventing the decline of young grapevines in nurseries and vineyards.
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Affiliation(s)
| | | | | | | | - Ana Ibañez
- Instituto de Investigación de la Viña y el Vino, Universidad de León, León, Spain
| | - Alba Díez-Galán
- Instituto de Investigación de la Viña y el Vino, Universidad de León, León, Spain
| | | | - Juan José R Coque
- Instituto de Investigación de la Viña y el Vino, Universidad de León, León, Spain
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19
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Piao C, Jin L, Zhao J, Liu C, Zhao Y, Wang X, Xiang W. Longispora urticae sp. nov., isolated from rhizosphere soil of Urtica urens L., and emended descriptions of the species Longispora albida and Longispora fulva. Int J Syst Evol Microbiol 2017; 67:4228-4234. [DOI: 10.1099/ijsem.0.002288] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Chenyu Piao
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Liying Jin
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Junwei Zhao
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Chongxi Liu
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Yue Zhao
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Xiangjing Wang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Wensheng Xiang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
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20
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Lewin GR, Carlos C, Chevrette MG, Horn HA, McDonald BR, Stankey RJ, Fox BG, Currie CR. Evolution and Ecology of Actinobacteria and Their Bioenergy Applications. Annu Rev Microbiol 2017; 70:235-54. [PMID: 27607553 DOI: 10.1146/annurev-micro-102215-095748] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The ancient phylum Actinobacteria is composed of phylogenetically and physiologically diverse bacteria that help Earth's ecosystems function. As free-living organisms and symbionts of herbivorous animals, Actinobacteria contribute to the global carbon cycle through the breakdown of plant biomass. In addition, they mediate community dynamics as producers of small molecules with diverse biological activities. Together, the evolution of high cellulolytic ability and diverse chemistry, shaped by their ecological roles in nature, make Actinobacteria a promising group for the bioenergy industry. Specifically, their enzymes can contribute to industrial-scale breakdown of cellulosic plant biomass into simple sugars that can then be converted into biofuels. Furthermore, harnessing their ability to biosynthesize a range of small molecules has potential for the production of specialty biofuels.
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Affiliation(s)
- Gina R Lewin
- Department of Bacteriology, University of Wisconsin-Madison, Wisconsin 53706; .,Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Wisconsin 53726
| | - Camila Carlos
- Department of Bacteriology, University of Wisconsin-Madison, Wisconsin 53706; .,Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Wisconsin 53726
| | - Marc G Chevrette
- Department of Bacteriology, University of Wisconsin-Madison, Wisconsin 53706; .,Department of Genetics, University of Wisconsin-Madison, Wisconsin 53706
| | - Heidi A Horn
- Department of Bacteriology, University of Wisconsin-Madison, Wisconsin 53706;
| | - Bradon R McDonald
- Department of Bacteriology, University of Wisconsin-Madison, Wisconsin 53706; .,Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Wisconsin 53726
| | - Robert J Stankey
- Department of Bacteriology, University of Wisconsin-Madison, Wisconsin 53706; .,Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Wisconsin 53726
| | - Brian G Fox
- Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Wisconsin 53726.,Department of Biochemistry, University of Wisconsin-Madison, Wisconsin 53706
| | - Cameron R Currie
- Department of Bacteriology, University of Wisconsin-Madison, Wisconsin 53706; .,Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Wisconsin 53726
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21
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Vatsa-Portugal P, Aziz A, Rondeau M, Villaume S, Morjani H, Clément C, Ait Barka E. How Streptomyces anulatus Primes Grapevine Defenses to Cope with Gray Mold: A Study of the Early Responses of Cell Suspensions. FRONTIERS IN PLANT SCIENCE 2017; 8:1043. [PMID: 28702033 PMCID: PMC5487444 DOI: 10.3389/fpls.2017.01043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 05/30/2017] [Indexed: 05/24/2023]
Abstract
Gray mold, caused by Botrytis cinerea, is one of the most destructive diseases of grapevine and is controlled with an intense application of fungicides. As alternatives to chemicals, beneficial microbes may promote plant health by stimulating the plant's immune system. An actinomycete, Streptomyces anulatus S37, has been screened from the rhizosphere microbiome of healthy Vitis vinifera on the basis of its ability to promote grapevine growth and to induce resistance against various phytopathogens, including B. cinerea. However, molecular mechanisms involved locally after direct perception of these bacteria by plant cells still remain unknown. This study focuses on local defense events induced in grapevine cells during interactions with S. anulatus S37 before and after pathogen challenge. We demonstrated that S. anulatus S37 induced early responses including oxidative burst, extracellular alkalinization, activation of protein kinases, induction of defense gene expression and phytoalexin accumulation, but not the programmed cell death. Interestingly, upon challenge with the B. cinerea, the S. anulatus S37 primed grapevine cells for enhanced defense reactions with a decline in cell death. In the presence of the EGTA, a calcium channel inhibitor, the induced oxidative burst, and the protein kinase activity were inhibited, but not the extracellular alkalinization, suggesting that Ca2+ may also contribute upstream to the induced defenses. Moreover, desensitization assays using extracellular pH showed that once increased by S. anulatus S37, cells became refractory to further stimulation by B. cinerea, suggesting that grapevine cells perceive distinctly beneficial and pathogenic microbes.
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Affiliation(s)
- Parul Vatsa-Portugal
- Laboratoire de Stress, Défenses et Reproduction des Plantes, UFR Sciences Exactes et Naturelles, Unité de Recherche Vignes et Vins de Champagne EA 4707, Université de Reims Champagne-Ardenne, ReimsFrance
| | - Aziz Aziz
- Laboratoire de Stress, Défenses et Reproduction des Plantes, UFR Sciences Exactes et Naturelles, Unité de Recherche Vignes et Vins de Champagne EA 4707, Université de Reims Champagne-Ardenne, ReimsFrance
| | - Marine Rondeau
- Laboratoire de Stress, Défenses et Reproduction des Plantes, UFR Sciences Exactes et Naturelles, Unité de Recherche Vignes et Vins de Champagne EA 4707, Université de Reims Champagne-Ardenne, ReimsFrance
| | - Sandra Villaume
- Laboratoire de Stress, Défenses et Reproduction des Plantes, UFR Sciences Exactes et Naturelles, Unité de Recherche Vignes et Vins de Champagne EA 4707, Université de Reims Champagne-Ardenne, ReimsFrance
| | - Hamid Morjani
- MEDyC – CNRS UMR7369, Faculty of Pharmacy, University of Reims Champagne-Ardenne, ReimsFrance
| | - Christophe Clément
- Laboratoire de Stress, Défenses et Reproduction des Plantes, UFR Sciences Exactes et Naturelles, Unité de Recherche Vignes et Vins de Champagne EA 4707, Université de Reims Champagne-Ardenne, ReimsFrance
| | - Essaid Ait Barka
- Laboratoire de Stress, Défenses et Reproduction des Plantes, UFR Sciences Exactes et Naturelles, Unité de Recherche Vignes et Vins de Champagne EA 4707, Université de Reims Champagne-Ardenne, ReimsFrance
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22
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Zhao S, Liu C, Zheng W, Ma Z, Cao T, Zhao J, Yan K, Xiang W, Wang X. Micromonospora parathelypteridis sp. nov., an endophytic actinomycete with antifungal activity isolated from the root of Parathelypteris beddomei (Bak.) Ching. Int J Syst Evol Microbiol 2017; 67:268-274. [PMID: 27902235 DOI: 10.1099/ijsem.0.001614] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel endophytic actinomycete with antifungal activity, designated strain NEAU-JXY5T, was isolated from the root of Parathelypteris beddomei (Bak.) Ching. Strain NEAU-JXY5T showed closest 16S rRNA gene sequence similarity to Micromonospora luteifusca GUI2T (99.31 %), and phylogenetically clustered with Micromonospora noduli GUI43T (99.24 %), 'Micromonospora lycii' NEAU-gq11 (99.19 %), 'Micromonospora zeae' NEAU-gq9 (99.12 %), Micromonospora saelicesensis Lupac 09T (98.97 %), Micromonospora vinacea GUI63T (98.96 %), 'Micromonospora jinlongensis' NEAU-GRX11 (98.91 %), Micromonospora profundi DS3010T (98.77 %), Micromonospora zamorensis CR38T (98.76 %), Micromonospora chokoriensis 2-19(6)T (98.71 %), Micromonospora lupini Lupac 14NT (98.69 %), Micromonospora ureilytica GUI23T (98.69 %), Micromonospora violae NEAU-zh8T (98.57 %) and Micromonospora taraxaci NEAU-P5T (98.37 %). Phylogenetic analysis based on gyrB gene sequences also indicated that the isolate clustered with the above strains except M. violae NEAU-zh8T. A combination of DNA-DNA hybridization results and some phenotypic characteristics indicated that the strain could be readily distinguished from these closest phylogenetic relatives. Therefore, it is concluded that strain NEAU-JXY5T represents a novel species of the genus Micromonospora, for which the name Micromonospora parathelypteridis sp. nov. is proposed. The type strain is NEAU-JXY5T (=CGMCC 4.7347T=DSM 103125T).
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Affiliation(s)
- Shanshan Zhao
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Chongxi Liu
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Weiwei Zheng
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Zhaoxu Ma
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Tingting Cao
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Junwei Zhao
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Kai Yan
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Wensheng Xiang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China.,Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Xiangjing Wang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
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Streptomyces gamaensis sp. nov., a novel actinomycete with antifungal activity isolated from soil in Gama, Chad. Antonie van Leeuwenhoek 2016; 110:471-477. [PMID: 28005217 DOI: 10.1007/s10482-016-0816-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 12/05/2016] [Indexed: 10/20/2022]
Abstract
During an investigation exploring potential sources of novel species and natural products, a novel actinomycete with antifungal activity, designated strain NEAU-Gz11T, was isolated from a soil sample, which was collected from Gama, Chad. The isolate was found to have morphological and chemotaxonomic characteristics typical of members of the genus Streptomyces. 16S rRNA gene sequence similarity studies showed that strain NEAU-Gz11T belongs to the genus Streptomyces with high sequence similarity to Streptomyces hiroshimensis JCM 4098T (98.0 %). Similarities to other type strains of the genus Streptomyces were lower than 98.0 %. However, the physiological and biochemical characteristics and low levels of DNA-DNA relatedness could differentiate the isolate genotypically and phenotypically from S. hiroshimensis JCM 4098T. Therefore, the strain is concluded to represent a novel species of the genus Streptomyces, for which the name Streptomyces gamaensis sp. nov. is proposed. The type strain is NEAU-Gz11T (=CGMCC 4.7304T=DSM 101531T).
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Verrucosispora sonchi sp. nov., a novel endophytic actinobacterium isolated from the leaves of common sowthistle (Sonchus oleraceus L.). Int J Syst Evol Microbiol 2016; 66:5430-5436. [DOI: 10.1099/ijsem.0.001537] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Mahajan R, Nikitina A, Litti Y, Nozhevnikova A, Goel G. Autochthonous microbial community associated with pine needle forest litterfall influences its degradation under natural environmental conditions. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:417. [PMID: 27317052 DOI: 10.1007/s10661-016-5421-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 06/12/2016] [Indexed: 06/06/2023]
Abstract
The slow natural degradation of chir pine (Pinus roxburghii) needle litterfall and its accumulation on forest floors have been attributed to its lignocellulosic complexities of the biomass. The present study offers a microbiological insight into the role of autochthonous microflora associated with pine needle litterfall in its natural degradation. The denaturing gradient gel electrophoresis (DGGE) fingerprinting indicated actinomycetes (Saccharomonospora sp., Glycomyces sp., Agrococcus sp., Leifsonia sp., Blastocatella sp., and Microbacterium sp.) as a dominant microbial community associated with pine needle litterfall with the absence of fungal decomposers. On exclusion of associated autochthonous microflora from pine litterfall resulted in colonization by decomposer fungi identified as Penicillium chrysogenum and Aspergillus sp., which otherwise failed to colonize the litterfall under natural conditions. The results, therefore, indicated that the autochthonous microbial community of pine needle litterfall (dominated by actinomycetes) obstructs the colonization of litter-degrading fungi and subsequently hinders the overall process of natural degradation of litterfall.
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Affiliation(s)
- Rishi Mahajan
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, 173234, India
| | - Anna Nikitina
- Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, 33, bld. 2, Leninsky Ave., Moscow, 119071, Russia
| | - Yury Litti
- Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, 33, bld. 2, Leninsky Ave., Moscow, 119071, Russia
| | - Alla Nozhevnikova
- Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, 33, bld. 2, Leninsky Ave., Moscow, 119071, Russia
| | - Gunjan Goel
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, 173234, India.
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Streptosporangium lutulentum sp. nov., Streptosporangium fenghuangense sp. nov. and Streptosporangium corydalis sp. nov., three novel actinobacterial species isolated from National Forest Park of Fenghuang Mountain. Antonie van Leeuwenhoek 2016; 109:439-48. [DOI: 10.1007/s10482-016-0650-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 01/11/2016] [Indexed: 09/29/2022]
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Rao HCY, Rakshith D, Satish S. Antimicrobial properties of endophytic actinomycetes isolated from Combretum latifolium Blume, a medicinal shrub from Western Ghats of India. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s11515-015-1377-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ma Z, Liu C, Fan J, He H, Li C, Li J, Zhao S, Xiang W, Wang X. Plantactinospora sonchi sp. nov., an actinobacterium isolated from the leaves of common sowthistle (Sonchus oleraceus L.). Int J Syst Evol Microbiol 2015; 65:4895-4901. [DOI: 10.1099/ijsem.0.000668] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel actinobacterium, designated strain NEAU-QY2T, was isolated from the leaves of Sonchus oleraceus L. specimen, collected from Wuchang, Heilongjiang Province, China. A polyphasic study was carried out to establish the taxonomic position of this strain. The organism formed single spores with rough surfaces on substrate mycelia. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain NEAU-QY2T belonged to the genus Plantactinospora and formed a monophyletic clade with its closest related strains Plantactinospora endophytica YIM 68255T (99.2 % 16S rRNA gene sequence similarity), Plantactinospora veratri NEAU-FHS4T (98.8 %) and Plantactinospora mayteni YIM 61359T (98.7 %), an association that was supported by a bootstrap value of 90 % in the neighbour-joining tree and also recovered with the maximum-likelihood algorithm. However, DNA–DNA hybridization values between strain NEAU-QY2T and the three closely related strains were below 70 %. With reference to phenotypic characteristics, phylogenetic data and DNA–DNA hybridization results, strain NEAU-QY2T was distinguished from closely related strains and is classified as representing a novel species of the genus Plantactinospora, for which the name Plantactinospora sonchi sp. nov. is proposed. The type strain is NEAU-QY2T ( = CGMCC 4.7216T = JCM 30345T).
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Affiliation(s)
- Zhaoxu Ma
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Chongxi Liu
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Jianlong Fan
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Hairong He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Chuang Li
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Jiansong Li
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Shanshan Zhao
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Wensheng Xiang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Xiangjing Wang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
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Zhao J, Guo L, Liu C, Zhang Y, Guan X, Li J, Xu S, Xiang W, Wang X. Micromonospora lycii sp. nov., a novel endophytic actinomycete isolated from wolfberry root (Lycium chinense Mill). J Antibiot (Tokyo) 2015; 69:153-8. [DOI: 10.1038/ja.2015.109] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 07/21/2015] [Accepted: 09/29/2015] [Indexed: 01/02/2023]
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Yekkour A, Sabaou N, Zitouni A, Errakhi R, Mathieu F, Lebrihi A. Characterization and antagonistic properties of Streptomyces strains isolated from Saharan soils, and evaluation of their ability to control seedling blight of barley caused by Fusarium culmorum. Lett Appl Microbiol 2015; 55:427-35. [PMID: 25998930 DOI: 10.1111/j.1472-765x.2012.03312.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2012] [Revised: 09/03/2012] [Accepted: 09/07/2012] [Indexed: 11/29/2022]
Abstract
UNLABELLED During a screening for potential plant disease control actinomycetes, a total of 133 strains were isolated from Saharan soil samples of seven Algerian regions by dilution technique on chitin-vitamins agar medium. Screening for antagonistic properties using streak assay method showed that 25% of isolates demonstrated strong activities against a wide range of plant pathogenic fungi. Due to their strong anti-Fusarium activities, six of these isolates were selected and subsequently related to Streptomyces species by polyphasic analysis. These isolates were evaluated for their biocontrol ability against Fusarium culmorum, a serious pathogenic fungus of cereals crops related to damping-off and seedling blight resulting in yield loss. Barley seeds were chosen as cereal plant model. Surface bacterized seeds with TW3, RI3 and TW2 strains expressed the highest performances and permit to reduce significantly both the disease occurrence on seedlings (62-76%) and the extent of seedling blight symptoms (over than 95%). However, a negative effect on plant establishment was observed for RI3 treatment. SIGNIFICANCE AND IMPACT OF THE STUDY The genus Fusarium is considered to be one of the most problematic phytopathogenic fungi for crop culture worldwide. Inside this genus, F. culmorum is the aetiological agent of seedling blight in various monocotyledonous plants such as barley and cause extensive yield and quality losses in humid and semi-humid regions. Biological control may be a successful alternative to chemical control, particularly with the controversy surrounding the use of the fungicides and the limited obtained results to control F. culmorum. This study highlights the effectiveness of some antagonistic Streptomyces isolated from Algerian Saharan soils to control F. culmorum by the reduction in disease occurrence and disease severity suggesting their use on microbial biocontrol formulation against soilborne diseases.
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Affiliation(s)
- A Yekkour
- Laboratoire de Biologie des Systèmes Microbiens, Ecole Normale Supérieure de Kouba, Alger, Algeria.,Centre de Recherche Polyvalent, Institut National de la Recherche Agronomique d'Algérie, Alger, Algeria
| | - N Sabaou
- Laboratoire de Biologie des Systèmes Microbiens, Ecole Normale Supérieure de Kouba, Alger, Algeria
| | - A Zitouni
- Laboratoire de Biologie des Systèmes Microbiens, Ecole Normale Supérieure de Kouba, Alger, Algeria
| | - R Errakhi
- Université Moulay Ismail, Meknès, Morocco
| | - F Mathieu
- Laboratoire de Génie Chimique, INPT-ENSAT, UMR 5503 (CNRS/INPT/UPS), Université de Toulouse, Castanet-Tolosan, France
| | - A Lebrihi
- Université Moulay Ismail, Meknès, Morocco.,Laboratoire de Génie Chimique, INPT-ENSAT, UMR 5503 (CNRS/INPT/UPS), Université de Toulouse, Castanet-Tolosan, France
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Zhou Y, Liu C, Zhang Y, Zhao J, Li C, He H, Li J, Wang X, Xiang W. Catellatospora tagetis sp. nov., isolated from the root of a marigold (Tagetes erecta L.). Antonie van Leeuwenhoek 2015; 108:563-9. [DOI: 10.1007/s10482-015-0511-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 06/17/2015] [Indexed: 11/25/2022]
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Wang X, Liu C, Cheng J, Zhang Y, Ma Z, Li L, Wang X, Xiang W. Sphaerisporangium corydalis sp. nov., isolated from the root of Corydalis yanhusuo L. Antonie van Leeuwenhoek 2015; 108:133-9. [PMID: 25963939 DOI: 10.1007/s10482-015-0471-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 05/05/2015] [Indexed: 10/23/2022]
Abstract
Two Gram-stain positive, aerobic actinomycete strains, designated NEAU-YHS12 and NEAU-YHS15(T), were isolated from the root of Corydalis yanhusuo L. collected from Wuchang, Heilongjiang Province, northeast China. Phylogenetic analysis of 16S rRNA gene sequences showed that the two strains are closely related to one another (99.8 % similarity), and had the closest relationship with Sphaerisporangium cinnabarinum JCM 3291(T) (98.7, 98.6 %), Sphaerisporangium flaviroseum YIM 48771(T) (98.6, 98.6 %), Sphaerisporangium melleum JCM 13064(T) (98.5, 98.4 %) and Sphaerisporangium dianthi NEAU-CY18(T) (98.4, 98.4 %). DNA-DNA hybridization value between strains NEAU-YHS12 and NEAU-YHS15(T) was 82 ± 1.4 %, and the values between the two strains and the closely related type strains were well below 70 %. The two strains also shared a number of phenotypic characteristics that were distinct from the closely related species. Both strains were observed to contain MK-9(H6), MK-9(H4) and MK-9(H2) as the detected menaquinones. The cell wall peptidoglycan was found to contain meso-diaminopimelic acid. The phospholipid profiles were found to contain diphosphatidylglycerol, phosphatidylmethylethanolamine, phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannoside, phosphoglycolipid, and an unidentified phospholipid. The major fatty acids were identified as iso-C16:0, C17:1 ω7c, C18:0 and iso-C15:0. On the basis of the genetic and phenotypic properties, it is proposed that strains NEAU-YHS15(T) and NEAU-YHS12 be classified as representatives of a novel species of the genus Sphaerisporangium, for which the name Sphaerisporangium corydalis sp. nov is proposed. The type strain is NEAU-YHS15(T) (CGMCC 4.7148(T) = DSM46732(T)).
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Affiliation(s)
- Xin Wang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang, Harbin, 150030, People's Republic of China
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Ma Z, Liu H, Liu C, He H, Zhao J, Wang X, Li J, Wang X, Xiang W. Streptosporangium sonchi sp. nov. and Streptosporangium kronopolitis sp. nov., two novel actinobacteria isolated from a root of common sowthistle (Sonchus oleraceus L.) and a millipede (Kronopolites svenhedind Verhoeff). Antonie van Leeuwenhoek 2015; 107:1491-9. [DOI: 10.1007/s10482-015-0443-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 03/27/2015] [Indexed: 11/28/2022]
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Xing H, Liu C, Zhang Y, Zhao J, Li C, Liu H, Li L, Wang X, Xiang W. Plantactinospora veratri sp. nov., an actinomycete isolated from black false hellebore root (Veratrum nigrum L.). Int J Syst Evol Microbiol 2015; 65:1799-1804. [PMID: 25747424 DOI: 10.1099/ijs.0.000180] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel actinomycete, designated strain NEAU-FHS4T, was isolated from the root of black false hellebore (Veratrum nigrum L.). Strain NEAU-FHS4T formed single spores with smooth surfaces on substrate mycelium. The novel strain contained meso-diaminopimelic as amino acid of the peptidoglycan and xylose and glucose as whole-cell sugars. The predominant menaquinones were MK-10(H6) and MK-10(H8). Mycolic acids were not detected. The diagnostic phospholipids were phosphatidylethanolamine, diphosphatidylglycerol and phosphatidylinositol. The predominant cellular fatty acids were iso-C16 : 0, C16 : 0, C18 : 0 and anteiso-C17 : 0. Phenotypic and chemotaxonomic analysis showed that the novel isolate had characteristics typical of members of the genus Plantactinospora. 16S rRNA gene sequence analysis also indicated that strain NEAU-FHS4T belonged to the genus Plantactinospora, with highest sequence similarities to Plantactinospora mayteni YIM 61359T (98.88 %) and Plantactinospora endophytica YIM 68255T (98.85 %). The results of DNA-DNA hybridization and physiological and biochemical tests allowed genotypic and phenotypic differentiation of the novel strain from the most closely related strains. Based on morphological, chemotaxonomic and phylogenetic data, strain NEAU-FHS4T is considered to represent a novel species of the genus Plantactinospora, for which the name Plantactinospora veratri sp. nov. is proposed. The type strain is NEAU-FHS4T ( = CGMCC 4.7143T = DSM 46718T).
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Affiliation(s)
- He Xing
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Chongxi Liu
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Yuejing Zhang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Junwei Zhao
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Chuang Li
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Hui Liu
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Lianjie Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Xiangjing Wang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Wensheng Xiang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China.,State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
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He H, Zhang Y, Ma Z, Li C, Liu C, Zhou Y, Li L, Wang X, Xiang W. Actinomycetospora rhizophila sp. nov., an actinomycete isolated from rhizosphere soil of a peace lily (Spathi phyllum Kochii). Int J Syst Evol Microbiol 2015; 65:1520-1524. [PMID: 25701847 DOI: 10.1099/ijs.0.000131] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel actinomycete, designated strain NEAU-B-8(T), was isolated from the rhizosphere soil of a peace lily (Spathi phyllum Kochii) collected from Heilongjiang province, north-east China. Key morphological and physiological characteristics as well as chemotaxonomic features of strain NEAU-B-8(T) were congruent with the description of the genus Actinomycetospora , such as the major fatty acids, the whole-cell hydrolysates, the predominant menaquinone and the phospholipid profile. The 16S rRNA gene sequence analysis revealed that strain NEAU-B-8(T) shared the highest sequence similarities with Actinomycetospora lutea JCM 17982(T) (99.3% 16S rRNA gene sequence similarity), Actinomycetospora chlora TT07I-57(T) (98.4 %), Actinomycetospora straminea IY07-55(T) (98.3%) and Actinomycetospora chibensis TT04-21(T) (98.2%); similarities to type strains of other species of this genus were lower than 98%. The phylogenetic tree based on 16S rRNA gene sequences showed that strain NEAU-B-8(T) formed a distinct branch with A. lutea JCM 17982(T) that was supported by a high bootstrap value of 97% in the neighbour-joining tree and was also recovered with the maximum-likelihood algorithm. However, the DNA-DNA relatedness between strain NEAU-B-8(T) and A. lutea JCM 17982(T) was found to be 50.6 ± 1.2%. Meanwhile, strain NEAU-B-8(T) differs from other most closely related strains in phenotypic properties, such as maximum NaCl tolerance, hydrolysis of aesculin and decomposition of urea. On the basis of the morphological, physiological, chemotaxonomic, phylogenetic and DNA-DNA hybridization data, we conclude that strain NEAU-B-8(T) represents a novel species of the genus Actinomycetospora , named Actinomycetospora rhizophila sp. nov. The type strain is NEAU-B-8(T). ( = CGMCC 4.7134(T) =DSM 46673(T)).
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Affiliation(s)
- Hairong He
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China.,Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Yuejing Zhang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Zhaoxu Ma
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Chuang Li
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Chongxi Liu
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Ying Zhou
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Lianjie Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China
| | - Xiangjing Wang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Wensheng Xiang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, PR China.,Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
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36
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Kaltenpoth M, Roeser-Mueller K, Stubblefield JW, Seger J, Strohm E. Biogeography of a defensive symbiosis. Commun Integr Biol 2015; 7:e993265. [PMID: 26479018 PMCID: PMC4594253 DOI: 10.4161/19420889.2014.993265] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 10/27/2014] [Accepted: 10/28/2014] [Indexed: 11/29/2022] Open
Abstract
Mutualistic microorganisms play important roles in nutrition, reproduction and defense of many insects, yet the factors contributing to their maintenance and dispersal remain unknown in most cases. Theory suggests that collaboration can be maintained by repeated interaction of the same partners (partner fidelity) or by selective discrimination against non-cooperative partners (partner choice). In the defensive mutualism between solitary beewolf wasps and their antibiotic-producing Streptomyces bacteria, partner choice by host control of vertical symbiont transmission reinforces partner fidelity and has helped to maintain this highly specific association since it originated in the late Cretaceous. However, co-phylogenetic and biogeographic analyses suggest that there has also been considerable horizontal transmission of the symbionts. While the beewolves clearly have a paleotropic or palearctic origin, with later colonization of the nearctic and neotropics via Beringia and the Aves ridge, respectively, the bacteria show only weak geographical clustering, implying global dispersal or vicariance within the confines of an otherwise apparently exclusive symbiotic relationship. We discuss several hypotheses that may explain these patterns. Future studies investigating the occurrence of beewolf symbionts in the environment could yield broadly applicable insights into the relative impact of animal-vectored and free-living dispersal on the distribution of microorganisms in nature.
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Affiliation(s)
- Martin Kaltenpoth
- Max Planck Institute for Chemical Ecology; Insect Symbiosis Research Group ; Jena, Germany
| | | | | | - Jon Seger
- Department of Biology; University of Utah ; Salt Lake City, UT USA
| | - Erhard Strohm
- University of Regensburg; Department for Zoology ; Regensburg, Germany
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37
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Toumatia O, Yekkour A, Goudjal Y, Riba A, Coppel Y, Mathieu F, Sabaou N, Zitouni A. Antifungal properties of an actinomycin D-producing strain,Streptomycessp. IA1, isolated from a Saharan soil. J Basic Microbiol 2014; 55:221-8. [DOI: 10.1002/jobm.201400202] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 08/05/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Omrane Toumatia
- Laboratoire de Biologie des Systèmes Microbiens (LBSM); Ecole Normale Supérieure de Kouba; Alger Algeria
- Faculté des Sciences, Département de Microbiologie et Biochimie; Université de M'sila; M'sila Algeria
| | - Amine Yekkour
- Laboratoire de Biologie des Systèmes Microbiens (LBSM); Ecole Normale Supérieure de Kouba; Alger Algeria
| | - Yacine Goudjal
- Laboratoire de Biologie des Systèmes Microbiens (LBSM); Ecole Normale Supérieure de Kouba; Alger Algeria
| | - Amar Riba
- Laboratoire de Biologie des Systèmes Microbiens (LBSM); Ecole Normale Supérieure de Kouba; Alger Algeria
| | - Yannick Coppel
- Centre National de la Recherche Scientifique (CNRS); Laboratoire de Chimie de Coordination (LCC); Toulouse France
- Université de Toulouse, UPS, INPT, LCC; Toulouse France
| | - Florence Mathieu
- Université de Toulouse, Département de Bioprocédés et Systèmes Microbiens, Laboratoire de Génie Chimique (LGC) UMR 5503 (CNRS/INPT/UPS), ENSAT-INP de Toulouse; Castanet-Tolosan Cedex 1 France
| | - Nasserdine Sabaou
- Laboratoire de Biologie des Systèmes Microbiens (LBSM); Ecole Normale Supérieure de Kouba; Alger Algeria
| | - Abdelghani Zitouni
- Laboratoire de Biologie des Systèmes Microbiens (LBSM); Ecole Normale Supérieure de Kouba; Alger Algeria
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38
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Zhou Y, Liu C, Zhang Y, Li C, Xing J, Li L, Zhou S, Wang X, Xiang W. Streptosporangium subfuscum sp. nov., isolated from the rhizosphere of marigold (Tagetes erecta L.). Antonie van Leeuwenhoek 2014; 106:1231-8. [DOI: 10.1007/s10482-014-0293-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Accepted: 09/19/2014] [Indexed: 12/01/2022]
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39
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Zhao J, Guo L, He H, Liu C, Zhang Y, Li C, Wang X, Xiang W. Micromonospora taraxaci sp. nov., a novel endophytic actinomycete isolated from dandelion root (Taraxacum mongolicum Hand.-Mazz.). Antonie van Leeuwenhoek 2014; 106:667-74. [DOI: 10.1007/s10482-014-0237-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 07/14/2014] [Indexed: 11/29/2022]
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40
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Zhang Y, Liu H, Zhang X, Wang S, Liu C, Yu C, Wang X, Xiang W. Micromonospora violae sp. nov., isolated from a root of Viola philippica Car. Antonie van Leeuwenhoek 2014; 106:219-25. [DOI: 10.1007/s10482-014-0184-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 04/21/2014] [Indexed: 10/25/2022]
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41
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He H, Zhang X, Wang H, Liu C, Wang S, Zhao J, Yuan J, Wang X, Xiang W. Streptosporangium nanhuense sp. nov., a novel actinomycete isolated from soil. Antonie van Leeuwenhoek 2014; 105:1025-31. [DOI: 10.1007/s10482-014-0162-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 03/24/2014] [Indexed: 10/25/2022]
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42
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Zhang X, Zhang Y, Zhao J, Liu C, Wang S, Yang L, He H, Xiang W, Wang X. Nonomuraea fuscirosea sp. nov., an actinomycete isolated from the rhizosphere soil of rehmannia (Rehmannia glutinosa Libosch). Int J Syst Evol Microbiol 2014; 64:1102-1107. [DOI: 10.1099/ijs.0.057877-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel actinomycete, designated strain NEAU-dht8T, was isolated from the rhizosphere soil of rehmannia (Rehmannia glutinosa Libosch) and characterized using a polyphasic approach. The organism was found to have morphological and chemotaxonomic characteristics typical of the genus
Nonomuraea
. The G+C content of the DNA was 68.47 mol%. On the basis of 16S rRNA gene sequence similarity studies, strain NEAU-dht8T was most closely related to
Nonomuraea maheshkhaliensis
16-5-14T (99.31 %),
Nonomuraea kuesteri
GW 14-1925T (98.77 %),
Nonomuraea coxensis
JCM 13931T (98.71 %),
Nonomuraea wenchangensis
210417T (98.44 %),
Nonomuraea bangladeshensis
5-10-10T (98.36 %) and
Nonomuraea salmonea
DSM 43678T (98.0 %); similarities to other species of the genus
Nonomuraea
were lower than 98 %. Two tree-making algorithms based on 16S rRNA gene sequences showed that the isolate formed a phyletic line with its closest neighbour
N. maheshkhaliensis
16-5-14T. However, the low level of DNA–DNA relatedness allowed the novel isolate to be differentiated from
N. maheshkhaliensis
16-5-14T. Strain NEAU-dht8T could also be differentiated from other species of the genus
Nonomuraea
showing high 16S rRNA gene sequence similarity (98–98.77 %) by morphological and physiological characteristics. Thus, strain NEAU-dht8T is considered to represent a novel species of the genus
Nonomuraea
, for which the name Nonomuraea fuscirosea sp. nov. is proposed. The type strain is NEAU-dht8T ( = CGMCC 4.7104T = DSM 45880T).
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Affiliation(s)
- Xinhui Zhang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Yuejing Zhang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Junwei Zhao
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Chongxi Liu
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Shurui Wang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Lingyu Yang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Harbin 150030, PR China
| | - Hairong He
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Wensheng Xiang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Xiangjing Wang
- Key Laboratory of Agriculture Biological Functional Gene of Heilongjiang Provincial Education Committee, Harbin 150030, PR China
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Actinomycetospora atypica sp. nov., a novel soil actinomycete and emended description of the genus Actinomycetospora. Antonie van Leeuwenhoek 2014; 105:891-7. [PMID: 24573328 DOI: 10.1007/s10482-014-0143-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 02/19/2014] [Indexed: 10/25/2022]
Abstract
A novel actinomycete, designated strain NEAU-st4(T), was isolated from a soil sample collected from Shaanxi province, Northwest China and characterized using a polyphasic approach. 16S rRNA gene sequence analysis revealed that strain NEAU-st4(T) has the highest sequence similarities with Actinomycetospora rishiriensis RI109-Li102(T) (99.4 %), Actinomycetospora corticicola 014-5(T) (99.1 %), Actinomycetospora chiangmaiensis YIM 0006(T) (98.8 %) and Actinomycetospora iriomotensis IR73-Li102(T) (98.2 %). However, the low level of DNA-DNA relatedness differentiated strain NEAU-st4(T) from its closest phylogenetic neighbours. The main chemotaxonomic properties of strain NEAU-st4(T), such as the diamino acid of the peptidoglycan, the whole-cell hydrolysates, the predominant menaquinones and the phospholipid profile, supported its classification within the genus Actinomycetospora. The distinctive morphology of this strain compared with that of other members in the genus Actinomycetospora is the formation of sporangia directly on the substrate hyphae. Phenotypic and genotypic differences also allowed the distinction of the strain from closely related species. Consequently, strain NEAU-st4(T) represents a new species of the genus Actinomycetospora, for which the name Actinomycetospora atypica sp. nov. is proposed. The type strain is NEAU-st4(T) (=CGMCC 4.7093(T) = DSM 45873(T)).
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Purification of antibiotics from the biocontrol agent Streptomyces anulatus S37 by centrifugal partition chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 944:30-4. [DOI: 10.1016/j.jchromb.2013.11.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 10/04/2013] [Accepted: 11/05/2013] [Indexed: 11/22/2022]
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45
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Li C, Liu C, Zhao J, Zhang Y, Gao R, Zhang X, Yao M, Wang X, Xiang W. Micromonospora maoerensis sp. nov., isolated from a Chinese pine forest soil. Antonie van Leeuwenhoek 2013; 105:451-9. [DOI: 10.1007/s10482-013-0096-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Accepted: 12/07/2013] [Indexed: 11/25/2022]
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46
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Streptomyces sp. S160: a potential antagonist against chickpea charcoal root rot caused by Macrophomina phaseolina (Tassi) Goid. ANN MICROBIOL 2013. [DOI: 10.1007/s13213-013-0750-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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47
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Zhang X, Liu C, Zhang Y, Wang H, Wang S, Li C, Wang X, Xiang W. Streptosporangium shengliensis sp. nov., a novel actinomycete isolated from a lake sediment. Antonie van Leeuwenhoek 2013; 105:237-43. [DOI: 10.1007/s10482-013-0070-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 10/28/2013] [Indexed: 11/29/2022]
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48
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Zhang Y, Zhao J, Liu C, Shen Y, Jia F, Wang X, Xiang W. Nonomuraea shaanxiensis sp. nov., a novel actinomycete isolated from a soil sample. Antonie van Leeuwenhoek 2013; 105:57-64. [DOI: 10.1007/s10482-013-0052-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 10/08/2013] [Indexed: 10/26/2022]
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49
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Liu C, Wang X, Zhao J, Liu Q, Wang L, Guan X, He H, Xiang W. Streptomyces harbinensis sp. nov., an endophytic, ikarugamycin-producing actinomycete isolated from soybean root [Glycine max (L.) Merr]. Int J Syst Evol Microbiol 2013; 63:3579-3584. [PMID: 23584286 DOI: 10.1099/ijs.0.050088-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023] Open
Abstract
A novel ikarugamycin-producing actinomycete, designated strain NEAU-Da3(T), was isolated from soybean root [Glycine max (L.) Merr.] and characterized using a polyphasic approach. 16S rRNA gene sequence similarity studies showed that strain NEAU-Da3(T) belonged to the genus Streptomyces, and was most closely related to Streptomyces carpaticus NRRL B-16359(T) (99.5 %), Streptomyces cheonanensis VC-A46(T) (99.3 %) and Streptomyces xiamenensis MCCC 1A01550(T) (97.2 %); similarities to other type strains of species of the genus Streptomyces were lower than 97.1 %. The maximum-likelihood phylogenetic tree based on 16S rRNA gene sequences showed that the isolate formed a distinct phyletic line with S. carpaticus NRRL B-16359(T), S. cheonanensis VC-A46(T) and S. xiamenensis MCCC 1A01550(T). This branching pattern was also supported by the tree reconstructed with the neighbour-joining method. A comparative study between strain NEAU-Da3(T) and the type strains of the closest related species of the genus Streptomyces revealed that it differed from them in morphological, physiological and biochemical characteristics. Therefore, it is proposed that strain NEAU-Da3(T) represents a novel species of the genus Streptomyces, for which the name Streptomyces harbinensis sp. nov. is proposed. The type strain is NEAU-Da3(T) ( = CGMCC 4.7047(T) = DSM 42076(T)).
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Affiliation(s)
- Chongxi Liu
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Xiangjing Wang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Junwei Zhao
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Qianfeng Liu
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Liang Wang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Xuejiao Guan
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Hairong He
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Wensheng Xiang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
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50
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Liu C, Wang X, Yan Y, Wang J, Zhang B, Zhang J, Xiang W. Streptomyces heilongjiangensis sp. nov., a novel actinomycete that produces borrelidin isolated from the root surface of soybean [Glycine max (L.) Merr]. Int J Syst Evol Microbiol 2013; 63:1030-1036. [PMID: 22707527 PMCID: PMC3709533 DOI: 10.1099/ijs.0.041483-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A borrelidin-producing actinomycete, designated strain NEAU-W2(T), was isolated from the root surface of soybean [Glycine max (L.) Merr] and characterized using a polyphasic approach. The organism was found to have morphological and chemotaxonomic characteristics typical of streptomycetes. The G+C content of the DNA was 66.12 mol%. Analysis of the 16S rRNA gene sequence of strain NEAU-W2(T) revealed that the strain formed a distinct clade within the 16S rRNA gene sequence phylogenetic tree and showed highest similarity (99.61 %) to Streptomyces neyagawaensis ATCC 27449(T). However, the DNA-DNA relatedness between strain NEAU-W2(T) and S. neyagawaensis ATCC 27449(T) was 58.51 %. Strain NEAU-W2(T) could also be differentiated from S. neyagawaensis ATCC 27449(T) and other Streptomyces species showing high 16S rRNA gene sequence similarity (98-99 %), as well as other borrelidin-producing strains, based on morphological and physiological characteristics. On the basis of its physiological and molecular properties, it is proposed that strain NEAU-W2(T) represents a novel Streptomyces species, Streptomyces heilongjiangensis sp. nov. The type strain is NEAU-W2(T) ( = CGMCC 4.7004(T) = ATCC BAA-2424(T) = DSM 42073(T)).
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Affiliation(s)
- Chongxi Liu
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Xiangjing Wang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Yijun Yan
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Jidong Wang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Bo Zhang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Ji Zhang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
| | - Wensheng Xiang
- School of Life Science, Northeast Agricultural University, No. 59 Mucai Street, Xiangfang District, Harbin 150030, PR China
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