CHEN Qiao-huan,MIAO Yu-huan,WANG Tie-lin,et al.Fusarium Wilt Changes Microbial Community Structure in Rhizosphere Soil of Chrysanthemum morifolium[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(11):180-186.
CHEN Qiao-huan,MIAO Yu-huan,WANG Tie-lin,et al.Fusarium Wilt Changes Microbial Community Structure in Rhizosphere Soil of Chrysanthemum morifolium[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(11):180-186. DOI: 10.13422/j.cnki.syfjx.20210713.
Fusarium Wilt Changes Microbial Community Structure in Rhizosphere Soil of Chrysanthemum morifolium
To explore the differences in rhizosphere microbial community structure between
Fusarium
wilt-infected and healthy
Chrysanthemum morifolium
plants
.
Method
2
The rhizosphere soils of diseased and healthy
C. morifolium
plants were sampled and subjected to high-throughput 16S ribosomal DNA (rDNA) and internal transcribed spacer (ITS) sequencing, to identify the microbial community structure including bacteria and fungi.
Result
2
Fusarium
wilt reduced the bacterial abundance and diversity but had no significant effect on fungal alpha-diversity.The proportions of Acidobacteria, Gemmatimonadetes, and Nitrospirae in rhizosphere soil of healthy
C.morifolium
plants were higher than those of diseased plants, while the proportions of Proteobacteria and Bacteroidetes were lower(
P
<
0.05).
Fusarium
fungi accounted for 27.49%, 14.53%, and 11.94% in diseased plants whereas 0.47%, 1.01%, and 0.67% in healthy plants.Pathogenic bacteria
Pectobacterium
and
Dickeya
were enriched in rhizosphere soil of diseased plants. The abundances of nitrifying, detoxifying, and photosynthetic bacteria in rhizosphere soil of healthy plants were higher than those of diseased plants.
Conclusion
2
Fusarium
wilt reduces the bacterial richness and diversity and triggers the enrichment of massive
Fusarium
fungi,
Pectobacterium
, and
Dickeya
. The proportion of beneficial bacteria in rhizosphere soil of healthy plants is significantly higher than that of diseased plants.
SANTHANAM R , LUU V T , WEINHOLD A , et al . Native rootassociated bacteria rescue a plant from a sudden-wilt disease that emerged during continuous cropping [J]. Proc Natl Acad Sci , 2015 , 112 ( 36 ): E5013 - E5020 .
BAKKER P A H M , DOORNBOS R F , ZAMIOUDIS C , et al . Induced systemic resistance and the rhizosphere microbiome [J]. Plant Pathol J , 2013 , 29 ( 2 ): 136 - 143 .
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