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Scale-Dependent Effects of Growth Stage and Elevational Gradient on Rice Phyllosphere Bacterial and Fungal Microbial Patterns in the Terrace Field

文献类型： 外文期刊

作者： Wang, Pei 1 ; Dai, Jianping 1 ; Luo, Luyun 4 ; Liu, Yong 1 ; Jin, Decai 5 ; Zhang, Zhuo 1 ; Li, Xiaojuan 1 ; Fu, Wei 1 ; Tang, Tao 1 ; Xiao, Youlun 1 ; Hu, Yang 6 ; Liu, Erming 2 ;

作者机构： 1.Hunan Acad Agr Sci, Inst Plant Protect, State Key Lab Hybrid Rice, Changsha, Peoples R China

2.Hunan Agr Univ, Coll Plant Protect, Changsha, Peoples R China

3.Southern Reg Collaborat Innovat Ctr Grain & Oil C, Changsha, Peoples R China

4.Yangtze Normal Univ, Chongqing, Peoples R China

5.Chinese Acad Sci, Chinese Acad Sci Key Lab Environm Biotechnol, Res Ctr Ecoenvironm Sci, Beijing, Peoples R China

6.Zhejiang Acad Forestry, Hangzhou, Peoples R China

关键词： rice phyllosphere; elevational gradient; growth stage; fungi; bacteria

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）

ISSN： 1664-462X

年卷期： 2022 年 12 卷

页码：

收录情况： SCI

摘要： The variation of phyllosphere bacterial and fungal communities along elevation gradients may provide a potential link with temperature, which corresponds to an elevation over short geographic distances. At the same time, the plant growth stage is also an important factor affecting phyllosphere microorganisms. Understanding microbiological diversity over changes in elevation and among plant growth stages is important for developing crop growth ecological theories. Thus, we investigated variations in the composition of the rice phyllosphere bacterial and fungal communities at five sites along an elevation gradient from 580 to 980 m above sea level (asl) in the Ziquejie Mountain at the seedling, heading, and mature stages, using high-throughput Illumina sequencing methods. The results revealed that the dominant bacterial phyla were Proteobacteria, Actinobacteria, and Bacteroidetes, and the dominant fungal phyla were Ascomycota and Basidiomycota, which varied significantly at different elevation sites and growth stages. Elevation had a greater effect on the alpha diversity of phyllosphere bacteria than on that phyllosphere fungi. Meanwhile, the growth stage had a great effect on the alpha diversity of both phyllosphere bacteria and fungi. Our results also showed that the composition of bacterial and fungal communities varied significantly along elevation within the different growth stages, in terms of both changes in the relative abundance of species, and that the variations in bacterial and fungal composition were well correlated with variations in the average elevation. A total of 18 bacterial and 24 fungal genera were significantly correlated with elevational gradient, displaying large differences at the various growth stages. Soluble protein (SP) shared a strong positive correlation with bacterial and fungal communities (p < 0.05) and had a strong significant negative correlation with Serratia, Passalora, unclassified_Trichosphaeriales, and antioxidant enzymes (R > 0.5, p < 0.05), and significant positive correlation with the fungal genera Xylaria, Gibberella, and Penicillium (R > 0.5, p < 0.05). Therefore, it suggests that elevation and growth stage might alter both the diversity and abundance of phyllosphere bacterial and fungal populations.

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