Characterization and application of symbiotic bacteria isolated from plants adapted to highly acidic soils.

2015 Fiscal Year Final Research Report

• Project/Area Number: 25870789
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Applied microbiology; Environmental agriculture(including landscape science)
• Research Institution: Nihon University (2013, 2015); Nihon University Junior College (2014)
• Principal Investigator: AIZAWA Tomoko 日本大学, 生物資源科学部, 助教 (60398849)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 根圏微生物 / 酸性土壌 / アルミニウム耐性

Outline of Final Research Achievements

Below pH 4.5, aluminum (Al) becomes more soluble in soils and consequently toxic to plants and their rhizospheric microorganisms, which can cause serious destruction of the environment and significant economic loss. Although there have been numerous reports on the toxicity of acid soils and the tolerance mechanisms in plants and microorganisms, especially the Al-toxicity and tolerance mechanisms, the research is still necessary to overcome the problems. Our results suggested that consortia or individual strains of symbiotic bacteria of plants growing in AASS areas might play important roles in the adaptation of these plants and may promote the growth of crop plants under acidic conditions. This knowledge will greatly help the development of new bioremediation methods for AASS areas, e.g., new bacterial inoculants to increase crop yield in AASS areas and neutralization of AASS by use of plant-microbe symbiotic systems.

Free Research Field

環境微生物学