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Succession of the wheat seed-associated microbiome as affected by soil fertility level and introduction of Penicillium and Bacillus inoculants in the field.
Nunes, Inês; Hansen, Veronika; Bak, Frederik; Bonnichsen, Lise; Su, Jianqiang; Hao, Xiuli; Raymond, Nelly Sophie; Nicolaisen, Mette Haubjerg; Jensen, Lars Stoumann; Nybroe, Ole.
Afiliação
  • Nunes I; Microbiomics and Microbe Discovery Denmark, Novozymes A/S, Biologiens Vej 2, 2880 Kgs Lyngby, Denmark.
  • Hansen V; Plant and Soil Section, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensevej 40, 1871 Frederiksberg C, Denmark.
  • Bak F; Section for Microbial Ecology and Biotechnology, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark.
  • Bonnichsen L; Section for Microbial Ecology and Biotechnology, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark.
  • Su J; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
  • Hao X; Section for Microbial Ecology and Biotechnology, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark.
  • Raymond NS; State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China.
  • Nicolaisen MH; Plant and Soil Section, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensevej 40, 1871 Frederiksberg C, Denmark.
  • Jensen LS; School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia.
  • Nybroe O; Section for Microbial Ecology and Biotechnology, Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark.
FEMS Microbiol Ecol ; 98(3)2022 03 24.
Article em En | MEDLINE | ID: mdl-35285907
During germination, the seed releases nutrient-rich exudates into the spermosphere, thereby fostering competition between resident microorganisms. However, insight into the composition and temporal dynamics of seed-associated bacterial communities under field conditions is currently lacking. This field study determined the temporal changes from 11 to 31 days after sowing in the composition of seed-associated bacterial communities of winter wheat as affected by long-term soil fertilization history, and by introduction of the plant growth-promoting microbial inoculants Penicillium bilaiae and Bacillus simplex. The temporal dynamics were the most important factor affecting the composition of the seed-associated communities. An increase in the relative abundance of genes involved in organic nitrogen metabolism (ureC and gdhA), and in ammonium oxidation (amoA), suggested increased mineralization of plant-derived nitrogen compounds over time. Dynamics of the phosphorus cycling genes ppt, ppx and cphy indicated inorganic phosphorus and polyphosphate cycling, as well as phytate hydrolysis by the seed-associated bacteria early after germination. Later, an increase in genes for utilization of organic phosphorus sources (phoD, phoX and phnK) indicated phosphorus limitation. The results indicate that community temporal dynamics are partly driven by changed availability of major nutrients, and reveal no functional consequences of the added inoculants during seed germination.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Penicillium / Bacillus / Microbiota Tipo de estudo: Risk_factors_studies Idioma: En Revista: FEMS Microbiol Ecol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Dinamarca

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Penicillium / Bacillus / Microbiota Tipo de estudo: Risk_factors_studies Idioma: En Revista: FEMS Microbiol Ecol Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Dinamarca