Responses to soil pH gradients of inorganic phosphate solubilizing bacteria community
Zheng, Bang-Xiao (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Zhang, Ding-Peng (Sun Yat-sen University. Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institutes)
Wang, Yu (Chinese Academy of Sciences)
Hao, Xiu-Li (University of Copenhagen. Department of Plant and Environmental Sciences)
Wadaan, Mohammed A. M. (King Saud University. Zoology Department)
Hozzein, Wael N. (King Saud University. Zoology Department)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Zhu, Yong-Guan (Chinese Academy of Sciences. Key Laboratory of Urban Environment and Health)
Yang, Xiao-Ru (Chinese Academy of Sciences. Key Laboratory of Urban Environment and Health)

Fecha:	2019
Resumen:	Soil pH is commonly considered a dominant factor affecting the function of microbiota. Few studies, however, have focused on communities of bacteria able to solubilize inorganic phosphate (iPSB), which are important for the mobilization of soil phosphorus (P), because finding an effective method to assess the abundance and diversity of iPSB communities is difficult. We used a newly reported method of database alignment and quantified the gene pqqC to analyze the compositions of iPSB communities from five soils with pH gradients ranging from 4 to 8. The iPSB community structure differed significantly between these soil types. Among iPSB community, Bacillus was the dominant genus, followed by Arthrobacter and Streptomyces. A redundancy analysis indicated that soil pH was the most important of 15 soil factors and their pairwise interactions, accounting for 5. 12% of the variance. The abundance of the iPSB communities increased with pH within the gradients which was confirmed by experimental adjustment of pH, suggesting that the defect P status in high pH soil was speculated as the driving force of iPSB community population. Our study demonstrated the dominant role of soil pH on the iPSB community, which may contribute to the understanding the possible mechanism of microbial P mobilization for better improvement of P use-efficiency.
Ayudas:	European Commission 610028
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Publicado en:	Scientific reports, Vol. 9 (January 2019) , art. 25, ISSN 2045-2322

DOI: 10.1038/s41598-018-37003-w
PMID: 30631110

8 p, 2.0 MB

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Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
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