Title |
Salicylic acid modulates colonization of the root microbiome by specific bacterial taxa
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Published in |
Science, July 2015
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DOI | 10.1126/science.aaa8764 |
Pubmed ID | |
Authors |
Sarah L Lebeis, Sur Herrera Paredes, Derek S Lundberg, Natalie Breakfield, Jase Gehring, Meredith McDonald, Stephanie Malfatti, Tijana Glavina del Rio, Corbin D Jones, Susannah G Tringe, Jeffery L Dangl |
Abstract |
Immune systems distinguish "self" from "non-self" to maintain homeostasis and must differentially gate access to allow colonization by potentially beneficial, non-pathogenic microbes. Plant roots grow within extremely diverse soil microbial communities, but assemble a taxonomically limited root-associated microbiome. We grew isogenic Arabidopsis thaliana mutants with altered immune systems in a wild soil and also in recolonization experiments with a synthetic bacterial community. We established that biosynthesis of, and signaling dependent on, the foliar defense phytohormone salicylic acid is required to assemble a normal root microbiome. Salicylic acid modulates colonization of the root by specific bacterial families. Thus, plant immune signaling drives selection from the available microbial communities to sculpt the root microbiome. |
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Thailand | 2 | 1% |
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Other | 23 | 16% |
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Demographic breakdown
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---|---|---|
Members of the public | 86 | 58% |
Scientists | 56 | 38% |
Science communicators (journalists, bloggers, editors) | 5 | 3% |
Practitioners (doctors, other healthcare professionals) | 1 | <1% |
Mendeley readers
Geographical breakdown
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France | 2 | <1% |
Canada | 2 | <1% |
Chile | 1 | <1% |
Peru | 1 | <1% |
Netherlands | 1 | <1% |
China | 1 | <1% |
Mexico | 1 | <1% |
Unknown | 862 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 160 | 18% |
Student > Master | 95 | 11% |
Student > Bachelor | 64 | 7% |
Student > Doctoral Student | 51 | 6% |
Other | 126 | 14% |
Unknown | 176 | 20% |
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Biochemistry, Genetics and Molecular Biology | 121 | 14% |
Environmental Science | 44 | 5% |
Immunology and Microbiology | 25 | 3% |
Engineering | 14 | 2% |
Other | 52 | 6% |
Unknown | 210 | 24% |