玄參與煙草間作對土壤細菌群落結構的影響
[Abstract]:In order to study the effect of Xuan participating tobacco on soil bacterial community structure under different planting patterns, soil bacteria were determined by Illumina MiSeq. The results showed that the richness and diversity of soil bacteria in Panax quinquefolium soil were higher than those in tobacco planting soil, but did not reach a significant level. Intercropping has the trend of reducing bacterial richness and diversity in tobacco planting soil and increasing bacterial diversity in Panax quinquefolium soil. The abundance of bacteria and the order of dominant bacteria were affected by crop and planting patterns at both door and genus level. at the gate level, Saccharibacteria in tobacco-growing soil was significantly higher than that in Panax quinquefolium soil, and Gemmatimonadetes was significantly higher in Panax quinquefolium soil than in tobacco-growing soil. There were significant differences in Bacteroidetes among different planting patterns. At the genus level, unclassified Xanthomonadaceae,norank Saccharibacteria,uncultured Gaiellales,norank SC-I-84 and other tobacco planting soils were significantly higher than those of Panax quinquefolium, norank GR-WP33-30,norank JG30a-KF-32,Gemmatimonas,Candidatus_Solibacter,uncultured Nitrosomonadaceae,norank C0119, Norank Subgroup_6,norank DA101_soil_group,norank BIrii41,Anaeromyxobacter,. The soil of Panax quinquefolium such as unclassified Xanthomonadales,uncultured Methylophilaceae,norank JG37-AG-20 was significantly higher than that of tobacco planting soil, and almost no genus was significantly affected by planting pattern. Principal component analysis also showed that crops had a greater influence than planting patterns. Therefore, the structure of soil bacterial community is affected by crop and planting pattern, but the influence of crop is greater, and there is obvious crop effect, and the intercropping soil has the binary structure of microbial community because of crop.
【作者單位】: 西南大學資源環(huán)境學院;貴州省煙草公司遵義市公司;重慶市中藥研究院;
【基金】:貴州省煙草公司遵義市公司研究開發(fā)項目(201404) 國家煙草專賣局重點項目(NY20150601070012) 中央高;究蒲袠I(yè)務費專項資金(SWU113094) 國家自然科學基金(31370602) 重慶市科委“科技平臺與基地建設”項目(CSTC,2014ptyjd10001)資助
【分類號】:S154.3
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