Evidence map›Paper›PMID 34225655›Full record

ArticleBMC plant biology2021

An illuminated respiratory activity monitoring system identifies priming-active compounds in plant seedlings.

Judith Loogen, André Müller, Arne Balzer, Sophie Weber, Kathrin Schmitz, Roxanne Krug, Ulrich Schaffrath, Jörg Pietruszk, Uwe Conrath, Jochen Büchs

Abstract read
In one paragraph

Article in BMC plant biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Judith LoogenAVT.BioVT, RWTH Aachen University, Forckenbeckstraße 51, 52074, Aachen, Germany.
André MüllerBioeconomy Science Center (BioSC), C/O Research Center Jülich, 52425, Jülich, Germany.
Arne BalzerBioeconomy Science Center (BioSC), C/O Research Center Jülich, 52425, Jülich, Germany.
Sophie WeberInstitute for Bio- and Geoscience, IBG-2: Plant Science, Forschungszentrum Jülich, 52425, Jülich, Germany.
Kathrin SchmitzBioeconomy Science Center (BioSC), C/O Research Center Jülich, 52425, Jülich, Germany.
Roxanne KrugInstitut Für Bioorganische Chemie (IBOC), Heinrich-Heine-Universität Düsseldorf Im Forschungszentrum Jülich, 52426, Jülich, Germany.
Ulrich SchaffrathBioeconomy Science Center (BioSC), C/O Research Center Jülich, 52425, Jülich, Germany.
Jörg PietruszkBioeconomy Science Center (BioSC), C/O Research Center Jülich, 52425, Jülich, Germany.
Uwe ConrathBioeconomy Science Center (BioSC), C/O Research Center Jülich, 52425, Jülich, Germany.
Jochen BüchsAVT.BioVT, RWTH Aachen University, Forckenbeckstraße 51, 52074, Aachen, Germany. jochen.buechs@avt.rwth-aachen.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGrowing large crop monocultures and heavily using pesticides enhances the evolution of pesticide-insensitive pests and pathogens. To reduce pesticide use in crop cultivation, the application of priming-active compounds (PrimACs) is a welcome alternative. PrimACs strengthen the plant immune system and could thus help to protect plants with lower amounts of pesticides. PrimACs can be identified, for example, by their capacity to enhance the respiratory activity of parsley cells in culture as determined by the oxygen transfer rate (OTR) using the respiration activity monitoring system (RAMOS) or its miniaturized version, µRAMOS. The latter was designed for with suspensions of bacteria and yeast cells in microtiter plates (MTPs). So far, RAMOS or µRAMOS have not been applied to adult plants or seedlings, which would overcome the limitation of (µ)RAMOS to plant suspension cell cultures.

resultsIn this work, we introduce a modified µRAMOS for analysis of plant seedlings. The novel device allows illuminating the seedlings and records the respiratory activity in each well of a 48-well MTP. To validate the suitability of the setup for identifying novel PrimAC in Arabidopsis thaliana, seedlings were grown in MTP for seven days and treated with the known PrimAC salicylic acid (SA; positive control) and the PrimAC candidate methyl 1-(3,4-dihydroxyphenyl)-2-oxocyclopentane-1-carboxylate (Tyr020). Twenty-eight h after treatment, the seedlings were elicited with flg22, a 22-amino acid peptide of bacterial flagellin. Upon elicitation, the respiratory activity was monitored. The evaluation of the OTR course reveals Tyr020 as a likely PrimAC. The priming-inducing activity of Tyr020 was confirmed using molecular biological analyses in A. thaliana seedlings.

conclusionWe disclose the suitability of µRAMOS for identifying PrimACs in plant seedlings. The difference in OTR during a night period between primed and unprimed plants was distinguishable after elicitation with flg22. Thus, it has been shown that the µRAMOS device can be used for a reliable screening for PrimACs in plant seedlings.

Indexed as

LightArabidopsisCell RespirationSeedlingsDefense priming-inducing chemistryOxygen transfer ratePlant immunityPlant protectionRespiratory activitySustainable agriculture

Identifiers

PMID34225655
PMCPMC8256589

What Socratic holds

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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 Socratic graph.