Lyu Guangze, Hu Jiayang, Ma Jincai
Key Laboratory of Ground Water Resource and Environment, Ministry of Education, Jilin University, Changchun 130021, China.
Jilin Provincial Key Laboratory of Water Resources and Environment, Jilin University, Changchun 130021, China.
Microorganisms. 2024 Aug 23;12(9):1751. doi: 10.3390/microorganisms12091751.
Microbial communities are closely related to the overall health and quality of soil, but studies on microbial ecology in apple pear orchard soils are limited. In the current study, 28 soil samples were collected from three apple pear orchards, and the composition and structure of fungal and bacterial communities were investigated by high-throughput sequencing. The molecular ecological network showed that the keystone taxa of bacterial communities were , , , , , and , and the keystone taxon of fungal communities was . Mantel tests showed that soil texture and pH were important factors shaping soil bacterial and fungal communities, and soil water soluble organic carbon (WSOC) and nitrate nitrogen (NO-N) were also closely related to soil bacterial communities. Canonical correspondence analysis (CCA) and variation partition analysis (VPA) revealed that geographic distance, soil texture, pH, and other soil properties could explain 10.55%, 13.5%, and 19.03% of the overall variation in bacterial communities, and 11.61%, 13.03%, and 20.26% of the overall variation in fungal communities, respectively. The keystone taxa of bacterial and fungal communities in apple pear orchard soils and their strong correlation with soil properties could provide useful clues toward sustainable management of orchards.
微生物群落与土壤的整体健康和质量密切相关，但关于苹果梨园土壤微生物生态学的研究有限。在本研究中，从三个苹果梨园采集了28个土壤样本，并通过高通量测序研究了真菌和细菌群落的组成与结构。分子生态网络表明，细菌群落的关键类群为 、 、 、 、 和 ，真菌群落的关键类群为 。Mantel检验表明，土壤质地和pH是塑造土壤细菌和真菌群落的重要因素，土壤水溶性有机碳（WSOC）和硝态氮（NO-N）也与土壤细菌群落密切相关。典范对应分析（CCA）和变异分解分析（VPA）表明，地理距离、土壤质地、pH和其他土壤性质分别可以解释细菌群落总体变异的10.55%、13.5%和19.03%，以及真菌群落总体变异的11.61%、13.03%和20.26%。苹果梨园土壤中细菌和真菌群落的关键类群及其与土壤性质的强相关性可为果园的可持续管理提供有用线索。
