NDLI: Migration of endophytic diazotroph Azorhizobium caulinodans ORS571 inside wheat (Triticum aestivum L) and its effect on microRNAs

Content Provider	Springer Nature Link
Author	Qiu, Li Li, Qiang Zhang, Junbiao Chen, Yongchao Lin, Xiaojun Sun, Chao Wang, Weiling Liu, Huawei Zhang, Baohong
Copyright Year	2016
Abstract	Azorhizobium caulinodans ORS571, a novel rhizobium, forms endosymbionts with its nature host Sesbania rostrata, a semi-aquatic leguminous tree. Recent studies showed that A. caulinodans ORS571, as endophytic rhizobium, disseminated and colonized inside of cereal plants. However, how this rhizobium infects monocot plants and the regulatory mechanism remains unknown. MicroRNAs (miRNAs) are small, endogenous RNAs that regulate gene expression at the post-transcriptional levels. In this study, we employed laser scanning confocal microscope to monitor the pathway that rhizobium invade wheat; we also investigated the potential role of miRNAs during A. caulinodans ORS571 infecting wheat. Our results showed that gfp-labeled A. caulinodans ORS571 infected wheat root hairs and emerged lateral roots, then disseminated and colonized within roots and migrated to other plant tissues, such as stems and leaves. Endophytic rhizobium induced the aberrant expression of miRNAs in wheat with a tissue- and time-dependent manner with a peak at 12–24 h after rhizobium infection. Some miRNAs, such as miR167 and miR393 responded more in roots than that in shoots. In contrast, miR171 responded higher in shoots than that in roots. These results suggested that miRNAs could be responsive to A. caulinodans ORS571 infection and played important role in plant growth, nutrient metabolisms, and wheat-rhizobium interactions.
Starting Page	311
Ending Page	319
Page Count	9
File Format	PDF
ISSN	1438793X
Journal	Functional & Integrative Genomics
Volume Number	17
Issue Number	2-3
e-ISSN	14387948
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-11-18
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Azorhizobium caulinodans ORS571 Dynamic colonization Wheat MicroRNA Cell Biology Plant Genetics & Genomics Microbial Genetics and Genomics Biochemistry Bioinformatics Animal Genetics and Genomics
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine

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