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Plant developmental stage drives the differentiation in ecological role of the maize microbiome
Xiong, Chao; Singh, Brajesh K.; He, Ji-Zheng; Han, Yan-Lai; Li, Pei-Pei; Wan, Li-Hua; Meng, Guo-Zhong; Liu, Si-Yi; Wang, Jun-Tao; Wu, Chuan-Fa; Ge, An-Hui; Zhang, Li-Mei
Source PublicationMICROBIOME
AbstractBackground Plants live with diverse microbial communities which profoundly affect multiple facets of host performance, but if and how host development impacts the assembly, functions and microbial interactions of crop microbiomes are poorly understood. Here we examined both bacterial and fungal communities across soils, epiphytic and endophytic niches of leaf and root, and plastic leaf of fake plant (representing environment-originating microbes) at three developmental stages of maize at two contrasting sites, and further explored the potential function of phylloplane microbiomes based on metagenomics. Results Our results suggested that plant developmental stage had a much stronger influence on the microbial diversity, composition and interkingdom networks in plant compartments than in soils, with the strongest effect in the phylloplane. Phylloplane microbiomes were co-shaped by both plant growth and seasonal environmental factors, with the air (represented by fake plants) as its important source. Further, we found that bacterial communities in plant compartments were more strongly driven by deterministic processes at the early stage but a similar pattern was for fungal communities at the late stage. Moreover, bacterial taxa played a more important role in microbial interkingdom network and crop yield prediction at the early stage, while fungal taxa did so at the late stage. Metagenomic analyses further indicated that phylloplane microbiomes possessed higher functional diversity at the early stage than the late stage, with functional genes related to nutrient provision enriched at the early stage and N assimilation and C degradation enriched at the late stage. Coincidently, more abundant beneficial bacterial taxa like Actinobacteria, Burkholderiaceae and Rhizobiaceae in plant microbiomes were observed at the early stage, but more saprophytic fungi at the late stage. Conclusions Our results suggest that host developmental stage profoundly influences plant microbiome assembly and functions, and the bacterial and fungal microbiomes take a differentiated ecological role at different stages of plant development. This study provides empirical evidence for host exerting strong effect on plant microbiomes by deterministic selection during plant growth and development. These findings have implications for the development of future tools to manipulate microbiome for sustainable increase in primary productivity.
KeywordCrop microbiomes Temporal dynamics Soil-plant continuum Microbiome assembly Microbial interkingdom networks Phylloplane microbiome Metagenomics
WOS Research AreaMicrobiology
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Western Sydney Univ, Global Ctr Land Based Innovat, Penrith, NSW 2751, Australia
4.Western Sydney Univ, Hawkesbury Inst Environm, Penrith, NSW 2751, Australia
5.Univ Melbourne, Fac Vet & Agr Sci, Parkville, Vic 3010, Australia
6.Henan Agr Univ, Coll Resource & Environm Sci, Zhengzhou 450002, Peoples R China
Recommended Citation
GB/T 7714
Xiong, Chao,Singh, Brajesh K.,He, Ji-Zheng,et al. Plant developmental stage drives the differentiation in ecological role of the maize microbiome[J]. MICROBIOME,2021,9(1):-.
APA Xiong, Chao.,Singh, Brajesh K..,He, Ji-Zheng.,Han, Yan-Lai.,Li, Pei-Pei.,...&Zhang, Li-Mei.(2021).Plant developmental stage drives the differentiation in ecological role of the maize microbiome.MICROBIOME,9(1),-.
MLA Xiong, Chao,et al."Plant developmental stage drives the differentiation in ecological role of the maize microbiome".MICROBIOME 9.1(2021):-.
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