Response of bacterial communities in rubber plantations to different fertilizer treatments
文献类型： 外文期刊
作者： Zhang, Zhiyang 1 ; Zhang, Peisong 2 ; Lin, Qinghuo 2 ; Cha, Zhengzao 2 ; Luo, Wei 2 ;
作者机构： 1.Hainan Univ, Inst Trop Agr & Forestry, Haikou, Hainan, Peoples R China
2.Chinese Acad Trop Agr Sci, Rubber Res Inst, Haikou, Hainan, Peoples R China
关键词： Hevea brasiliensis Muell. Arg.; Natural rubber yield; Organic fertilizer; Chemical fertilizer; Bacterial communities
期刊名称：3 BIOTECH （ 影响因子：2.406； 五年影响因子：3.203 ）
ISSN： 2190-572X
年卷期： 2019 年 9 卷 8 期
页码：
收录情况： SCI
摘要： In the present study, the effects of chemical fertilizer (CF) and organic fertilizer plus chemical fertilizer application (OF-CF) on natural rubber yield, soil properties, and soil bacterial community were systematically investigated in rubber plantations. The rubber dry yield was 26.3% more in the OF treatment group than in the CF treatment group. The contents of total nitrogen (TN), available nitrogen (AN), available phosphorus (AP), and available potassium (AK) as well as soil organic matter (SOM) and pH value were higher following OF-CF treatment. Using Illumina sequencing, a total of 927 operational taxonomic units (OTUs) were obtained following CF treatment, while 955 OTUs were obtained after OF-CF treatment. Relative abundance analysis showed the relative abundances of four phyla (Acidobacteria, Proteobacteria, Actinobacteria, Gemmatimonadetes) were different between the two treatment groups. Correlation analysis revealed Acidobacteria, Bacteroidetes, Thaumarchaeota, Elusimicrobia, Verrucomicrobia were the key taxa that determined the soil properties. Additionally, five OTUs (OTU_506, OTU_391, OTU_189, OTU_278, OTU_1057) were thought to be related to the biodegradation of natural rubber. Taken together, these results improve our understanding of the OF-mediated improvement in soil fertility and contribute to the identification of rubber-degrading bacteria in rubber plantations.
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