Universität zu Köln

Harbort, Christopher J., Hashimoto, Masayoshi, Inoue, Haruhiko, Niu, Yulong, Guan, Rui, Rombola, Adamo D., Kopriva, Stanislav, Voges, Mathias J. E. E. E., Sattely, Elizabeth S., Garrido-Oter, Ruben and Schulze-Lefert, Paul (2020). Root-Secreted Coumarins and the Microbiota Interact to Improve Iron Nutrition in Arabidopsis. Cell Host Microbe, 28 (6). S. 825 - 844. CAMBRIDGE: CELL PRESS. ISSN 1934-6069

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Abstract

Plants benefit from associations with a diverse community of root-colonizing microbes. Deciphering the mechanisms underpinning these beneficial services are of interest for improving plant productivity. We report a plant-beneficial interaction between Arabidopsis thaliana and the root microbiota under iron deprivation that is dependent on the secretion of plant-derived coumarins. Disrupting this pathway alters the microbiota and impairs plant growth in iron-limiting soil. Furthermore, the microbiota improves ironlimiting plant performance via a mechanism dependent on plant iron import and secretion of the coumarin fraxetin. This beneficial trait is strain specific yet functionally redundant across phylogenetic lineages of the microbiota. Transcriptomic and elemental analyses revealed that this interaction between commensals and coumarins promotes growth by relieving iron starvation. These results show that coumarins improve plant performance by eliciting microbe-assisted iron nutrition. We propose that the bacterial root microbiota, stimulated by secreted coumarins, is an integral mediator of plant adaptation to ironlimiting soils.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Harbort, Christopher J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hashimoto, Masayoshi UNSPECIFIED UNSPECIFIED UNSPECIFIED Inoue, Haruhiko UNSPECIFIED UNSPECIFIED UNSPECIFIED Niu, Yulong UNSPECIFIED UNSPECIFIED UNSPECIFIED Guan, Rui UNSPECIFIED UNSPECIFIED UNSPECIFIED Rombola, Adamo D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kopriva, Stanislav UNSPECIFIED UNSPECIFIED UNSPECIFIED Voges, Mathias J. E. E. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sattely, Elizabeth S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Garrido-Oter, Ruben UNSPECIFIED UNSPECIFIED UNSPECIFIED Schulze-Lefert, Paul UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-308413
DOI:	10.1016/j.chom.2020.09.006
Journal or Publication Title:	Cell Host Microbe
Volume:	28
Number:	6
Page Range:	S. 825 - 844
Date:	2020
Publisher:	CELL PRESS
Place of Publication:	CAMBRIDGE
ISSN:	1934-6069
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Biology > Botanical Institute
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Microbiology; Parasitology; Virology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/30841