DOI: 10.1111/pce.13667
论文题名: Endophytic fungus Falciphora oryzae promotes lateral root growth by producing indole derivatives after sensing plant signals
作者: Sun X. ; Wang N. ; Li P. ; Jiang Z. ; Liu X. ; Wang M. ; Su Z. ; Zhang C. ; Lin F. ; Liang Y.
刊名: Plant Cell and Environment
ISSN: 1407791
出版年: 2020
卷: 43, 期: 2 语种: 英语
英文关键词: alciphora oryzae
; Auxin
; ndophyte
; Root architecture
; Signal communication
Scopus关键词: endophyte
; fungus
; gene expression
; growth response
; inoculation
; physiological response
; phytohormone
; rice
; root architecture
; signaling
; Arabidopsis
; Arabidopsis thaliana
; Fungi
; Oryza granulata
; Zizania
英文摘要: The endophytic fungus Falciphora oryzae was initially isolated from wild rice (Oryza granulata) and colonizes many crop species and promotes plant growth. However, the molecular mechanisms underlying F. oryzae-mediated growth promotion are still unknown. We found that F. oryzae was able to colonize Arabidopsis thaliana. The most dramatic change after F. oryzae inoculation was observed in the root architecture, as evidenced by increased lateral root growth but reduced primary root length, similar to the effect of auxin, a significant plant growth hormone. The expression of genes responsible for auxin biosynthesis, transport, and signalling was regulated in Arabidopsis roots after F. oryzae cocultivation. Indole derivatives were detected at significantly higher levels in liquid media after cocultivation compared with separate cultivation of Arabidopsis and F. oryzae. Consistently, the expression of indole biosynthetic genes was highly upregulated in F. oryzae upon treatment with Arabidopsis exudates. Global analysis of Arabidopsis gene expression at the early stage after F. oryzae cocultivation suggested that signals were exchanged to initiate Arabidopsis–F. oryzae interactions. All these results suggest that signalling molecules from Arabidopsis roots are perceived by F. oryzae and induce the biosynthesis of indole derivatives in F. oryzae, consequently stimulating Arabidopsis lateral root growth. © 2019 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159917
Appears in Collections: 气候变化与战略
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作者单位: Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China; Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, 310058, China
Recommended Citation:
Sun X.,Wang N.,Li P.,et al. Endophytic fungus Falciphora oryzae promotes lateral root growth by producing indole derivatives after sensing plant signals[J]. Plant Cell and Environment,2020-01-01,43(2)