Page 27 - 《华中农业大学学报（自然科学版）》2024年第1期

第 1 期 魏宇飞 等：不同生育期番茄植株根际土壤微生物群落结构特征 21

Structural characteristics of soil microbial community in rhizospheres
of tomatoes during different growth periods

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WEI Yufei ,QIN Renliu ,DING Diancao ,LI Yongbin ,
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XIE Yuanyuan ,QU Dacai ,ZHAO Tianyi ,YANG Shangdong 1
1.College of Agronomy/National Experimental Teaching Demonstration Center of Plant Science，
Guangxi University， Nanning 530004， China；
2.Qinzhou Agricultural Technology Extension Center， Guangxi Zhuang Autonomous Region，
Qinzhou 535099， China
Abstract The soil fertility and structural and functional characteristics of microbial community in rhi⁃
zospheres of tomatoes during different growth periods were compared to construct an eco-cultivation system
for tomato production with high yield and high quality and utilize the resources of beneficial microbes. The
soil fertility and structural and functional characteristics of microbial （bacterial， fungal） community in rhizo⁃
spheres of tomato at the stage of seedling， flower and bud differentiation， and fruiting were analyzed based
on conventional and modern high-throughput sequencing techniques. The results showed that there were
more abundant sources of carbon， nitrogen， and phosphorus in the rhizospheres of of tomatoes at the stage
of fruiting in tomato. The structure and function of soil microbial community in rhizospheres of tomatoes
had undergone significant changes during different growth periods. Among them， norank_f_norank_o_
norank_c_KD4-96， norank_f_A4b and Bryobacter were the unique dominant bacterial genus in the rhizo⁃
spheres of tomatoes at the stage of seedling.TM7a and Saccharomonospora were the unique dominant bac⁃
terial genus in rhizospheres of tomatoes at the stage of flower and bud differentiation. Only Gemmatimonas
was the unique dominant bacterial genus in rhizospheres of tomatoes at the stage of fruiting. Moreover，
Powellomyces was the unique dominant fungal genus in rhizospheres of tomatoes at the stage of seedling，
Apiotrichum and unclassified_f_Chytridiaceae were the unique dominant fungal genera in rhizospheres of to⁃
matoes at the stage of flower and bud differentiation， and Alternaria was the unique dominant fungal genus
in rhizospheres of tomatoes at the stage of fruiting. It is indicated that specific microbial communities were
formed in rhizospheres of tomatoes at different stages of growth. Microorganisms enriched in rhizospheres
of tomatoes at the stage of seedling mainly produce hormones for plant growth. The enrichments of soil mi⁃
croorganisms in rhizospheres of tomatoes at the stage of flower and bud differentiation primarily improve re⁃
sistance for plants. Microorganisms enriched in rhizospheres of tomatoes at the stage of fruiting chiefly pro⁃
mote the nutrient cycling in soil.
Keywords tomato （Solanum lycopersicum L.）； growth period； rhizosphere； microbial community；

high throughput sequencing

（责任编辑：张志钰）