Evidence map›Paper›PMID 19820328›Full record

ArticlePlant signaling & behavior2009

Plant age and genotype impact the progression of bacterial community succession in the Arabidopsis rhizosphere.

Shirley A Micallef, Sheridon Channer, Michael P Shiaris, Adán Colón-Carmona

Abstract readComment
In one paragraph

Article in Plant signaling & behavior, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

81 citing papers in PubMed.

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21 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Shirley A MicallefDepartment of Biology, University of Massachusetts Boston, Boston, MA 02125, USA.
Sheridon Channer
Michael P Shiaris
Adán Colón-Carmona

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The rhizosphere is strongly influenced by plant-derived phytochemicals exuded by roots and plant species exert a major selective force for bacteria colonizing the root-soil interface. We have previously shown that rhizobacterial recruitment is tightly regulated by plant genetics, by showing that natural variants of Arabidopsis thaliana support genotype-specific rhizobacterial communities while also releasing a unique blend of exudates at six weeks post-germination. To further understand how exudate release is controlled by plants, changes in rhizobacterial assemblages of two Arabidopsis accessions, Cvi and Ler where monitored throughout the plants' life cycle. Denaturing gradient gel electrophoresis (DGGE) fingerprints revealed that bacterial communities respond to plant derived factors immediately upon germination in an accession-specific manner. Rhizobacterial succession progresses differently in the two accessions in a reproducible manner. However, as plants age, rhizobacterial and control bulk soil communities converge, indicative of an attenuated rhizosphere effect, which coincides with the expected slow down in the active release of root exudates as plants reach the end of their life cycle. These data strongly suggest that exudation changes during plant development are highly genotype-specific, possibly reflecting the unique, local co-evolutionary communication processes that developed between Arabidopsis accessions and their indigenous microbiota.

Identifiers

PMID19820328
PMCPMC2801398

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.