School of Life Science and Agriculture Forestry, Qiqihar University, Qiqihar, 161006, Heilongjiang, China.
Heilongjiang Provincial Technology Innovation Center of Agromicrobial Preparation Industrialization, Qiqihar, 161006, China.
Arch Microbiol. 2022 May 14;204(6):321. doi: 10.1007/s00203-022-02934-6.
Plant-microbe interactions affect ecosystem function, and plant species influence relevant microorganisms. However, the different genotypes of maize that shape the structure and function of the rhizosphere microbial community remain poorly investigated. During this study, the structures of the rhizosphere microbial community among three genotypes of maize were analyzed at the seedling and maturity stages using high-throughput sequencing and bioinformatics analysis. The results demonstrated that Tiannuozao 60 (N) showed higher bacterial and fungal diversity in both periods, while Junlong1217 (QZ) and Fujitai519 (ZL) had lower diversity. The bacterial community structure among the three varieties was significantly different; however, fewer differences were found in the fungal community. The bacterial community composition of N and QZ was similar yet different from ZL at the seedling stage. The bacterial networks of the three cultivars were more complex than the fungal networks, and the networks of the mature stages were more complex than those of the seedling stages, while the opposite was true for the fungi. FAPROTAX functional and FUNGuild functional predictions revealed that different varieties of maize were different in functional abundance at the genus level, and these differences were related to breeding characteristics. This study suggested that different maize genotypes regulated the rhizosphere bacterial and fungal communities, which would help guide practices.
植物-微生物相互作用影响生态系统功能，而植物物种影响相关微生物。然而，塑造根际微生物群落结构和功能的不同玉米基因型仍未得到充分研究。在这项研究中，使用高通量测序和生物信息学分析，在幼苗期和成熟期分析了三种玉米基因型的根际微生物群落结构。结果表明，天诺早 60（N）在两个时期的细菌和真菌多样性都较高，而巨龙 1217（QZ）和福泰 519（ZL）的多样性较低。三种品种的细菌群落结构差异显著；然而，真菌群落的差异较小。在幼苗期，N 和 QZ 的细菌群落组成相似，但与 ZL 不同。三种栽培品种的细菌网络比真菌网络更复杂，而成熟阶段的网络比幼苗阶段的网络更复杂，而真菌则相反。FAPROTAX 功能和 FUNGuild 功能预测表明，不同玉米品种在属水平上的功能丰度存在差异，这些差异与育种特点有关。本研究表明，不同的玉米基因型调节根际细菌和真菌群落，这将有助于指导实践。
