Lou Yi, Guo Qiao, Peng Chu, Shi Meng di, Li Hai Yang, Li Xiao, Xue Quan Hong, Lai Hang Xian
College of Natural Resources & Environment, Northwest A＆F University, Yangling 712100, Shaanxi, China.
Ying Yong Sheng Tai Xue Bao. 2018 Jan;29(1):260-268. doi: 10.13287/j.1001-9332.201801.040.
The effects of Bacillus Bs10, Ba12 and Bl10 on tomato growth and soil rhizosphere microorganisms were determined by Petri dish germination test and pot experiments. The results showed that Bs10, Ba12 and Bl10 exhibited remarkable promoting effect on the length of hypocotyl and radical, as well as the growth of plants. The length, surface area and volume of tomato roots increased significantly after treatment with Bacillus stains, the numbers and proportions of soil bacteria also increased markedly, while those of soil fungi decreased. The numbers of the dominant bacteria and fungi were changed, withBacillus methylotrophicus being much higher in root zone soil, surface soil and neouchi, while the plant pathogens Fusarium solani and Fusarium oxysporum decreased significantly in root zone soil and root surface soil. These results suggested that the addition of Bs10, Ba12 and Bl10 could improve the micro-ecosystem of the root domain of tomato, which might play an important role in growth promoting and disease prevention on tomato plants.
通过培养皿发芽试验和盆栽试验，测定了芽孢杆菌Bs10、Ba12和Bl10对番茄生长及土壤根际微生物的影响。结果表明，Bs10、Ba12和Bl10对番茄下胚轴和胚根长度以及植株生长均表现出显著的促进作用。用芽孢杆菌菌株处理后，番茄根的长度、表面积和体积显著增加，土壤细菌数量和比例也明显增加，而土壤真菌数量减少。优势细菌和真菌的数量发生了变化，甲基营养型芽孢杆菌在根际土壤、表层土壤和根内的数量要高得多，而植物病原菌茄腐镰刀菌和尖孢镰刀菌在根际土壤和根表土壤中显著减少。这些结果表明，添加Bs10、Ba12和Bl10可以改善番茄根际微生态系统，这可能对番茄植株的生长促进和疾病预防起到重要作用。
