Sui Junkang, Yang Jiayi, Li Chenyu, Zhang Lingxiao, Hua Xuewen
College of Agronomy and Agricultural Engineering, Liaocheng University, Liaocheng 252000, China.
Microorganisms. 2023 Feb 15;11(2):486. doi: 10.3390/microorganisms11020486.
In poplar cultivation, continuous cropping obstacles affect wood yield and soil-borne diseases, primarily due to structural changes in microbes and fungus infection. The bacterium BJS-1-3 has strong antagonistic properties against pathogens that were isolated from the rhizosphere soil of poplars. Poplar rhizospheres were investigated for the effects of BJS-1-3 on microbial communities. Three successive generations of soil were used to replant poplar seedlings. BJS-1-3 inoculated poplars were larger, had higher plant height and breast height diameter, and had a greater number of total and culturable bacteria than non-inoculated controls. BJS-1-3 inoculated poplar rhizospheres were sequenced, utilizing the Illumina MiSeq platform to analyze changes in diversity and structure. The fungi abundance and diversity in the BJS-1-3 rhizosphere were significantly lower than in the control rhizosphere. In comparison to the control group, sp. constituted 2.87% and 2.38% of the total bacterial community, while sp. constituted 2.06% and 6.00% of the total fungal community. Among the potential benefits of BJS-1-3 in poplar cultivation is that it enhances rhizosphere microbial community structure and facilitates the growth of trees.
在杨树栽培中，连作障碍会影响木材产量并引发土传病害，这主要是由于微生物结构变化和真菌感染所致。细菌BJS - 1 - 3对从杨树根际土壤中分离出的病原体具有很强的拮抗特性。研究了杨树根际中BJS - 1 - 3对微生物群落的影响。使用连续三代的土壤重新种植杨树幼苗。接种BJS - 1 - 3的杨树更大，株高和胸径更高，与未接种的对照相比，其总细菌和可培养细菌数量更多。对接种BJS - 1 - 3的杨树根际进行测序，利用Illumina MiSeq平台分析多样性和结构的变化。BJS - 1 - 3根际中的真菌丰度和多样性显著低于对照根际。与对照组相比，[具体细菌种类1]分别占细菌群落总数的2.87%和2.38%，而[具体真菌种类1]分别占真菌群落总数的2.06%和6.00%。BJS - 1 - 3在杨树栽培中的潜在益处之一是它能增强根际微生物群落结构并促进树木生长。
