AUTHOR=Pang Xiaomin , Jia Miao , Zhang Ying , Chen Meihui , Miao Pengyao , Cheng Weiting , Zhou Zewei , Zhang Qi , Ye Jianghua , Li Jiayu , Wang Haibin , Jia Xiaoli TITLE=Dynamic interplay between soil microbial communities, enzyme activities, and pear quality across planting years JOURNAL=Frontiers in Microbiomes VOLUME=3 YEAR=2024 URL=https://www.frontiersin.org/journals/microbiomes/articles/10.3389/frmbi.2024.1381270 DOI=10.3389/frmbi.2024.1381270 ISSN=2813-4338 ABSTRACT=
Few studies have been reported on the effect of planting years on fruit quality and soil of pear trees. In this study, four planting years (T5, T20, T30, and T40) of Cuiguan pears were used to analyze fruit quality, rhizosphere soil enzymes, and microbial diversity of pear trees, and their correlations. The results showed that the content of sucrose, reducing sugar and ascorbic acid in Cuiguan Pear showed a tendency of increasing and then decreasing with the increase of planting years, in which the highest content was found in 20- and 30-year-old fruits, and the highest content of total acid was found in 5-year-old fruits. Rhizosphere soil enzyme activities varied with planting year, with the highest protease activity in 20-year-old soil, phosphatase and urease in 30-year-old soil, polyphenol oxidase in 5-year-old soil, and sucrase in 40-year-old soil. The microbial diversity index and the number of OTUs showed an increasing and decreasing trend with the increase of planting years. Among the top 11 bacteria in pear rhizosphere soil average relative abundance, with