Evidence map›Paper›PMID 34979915›Full record

ArticleBMC plant biology2022

Salicylic acid mediated immune response of Citrus sinensis to varying frequencies of herbivory and pathogen inoculation.

Freddy Ibanez, Joon Hyuk Suh, Yu Wang, Monique Rivera, Mamoudou Setamou, Lukasz L Stelinski

Open access · goldAbstract read
In one paragraph

Article in BMC plant biology, 2022. 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
2.7field-weighted citation impact, top 10% of its field
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, 16 citations in OpenAlex.

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  4. A "Frontiers in plant science · 2022
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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

6 authors at 3 institutions in 1 country.

Freddy IbanezDepartment of Entomology and Nematology, Citrus Research and Education Center, University of Florida, Lake Alfred, Florida, 33850, USA. freddy.ibanez-carras@ag.tamu.edu.ORCID http://orcid.org/0000-0001-7085-3920
Joon Hyuk SuhDepartment of Food Science and Human Nutrition, Citrus Research and Education Center, University of Florida, Lake Alfred, Florida, 33850, USA.
Yu WangDepartment of Food Science and Human Nutrition, Citrus Research and Education Center, University of Florida, Lake Alfred, Florida, 33850, USA.
Monique RiveraDepartment of Entomology, University of California Riverside, Riverside, California, 92521, USA.
Mamoudou SetamouTexas A&M University-Kingsville Citrus Center, 312 N International Blvd, Weslaco, TX, 78599, USA.
Lukasz L StelinskiDepartment of Entomology and Nematology, Citrus Research and Education Center, University of Florida, Lake Alfred, Florida, 33850, USA. stelinski@ufl.edu.
Florida Department of Citrus · USTexas A&M University – Kingsville · USUniversity of California, Riverside · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPlant immunity against pathogens and pests is comprised of complex mechanisms orchestrated by signaling pathways regulated by plant hormones [Salicylic acid (SA) and Jasmonic acid (JA)]. Investigations of plant immune response to phytopathogens and phloem-feeders have revealed that SA plays a critical role in reprogramming of the activity and/or localization of transcriptional regulators via post-translational modifications. We explored the contributing effects of herbivory by a phytopathogen vector [Asian citrus psyllid, Diaphorina citri] and pathogen [Candidatus Liberibacter asiaticus (CaLas)] infection on response of sweet orange [Citrus sinensis (L.) Osbeck] using manipulative treatments designed to mimic the types of infestations/infections that citrus growers experience when cultivating citrus in the face of Huanglongbing (HLB) disease.

resultsA one-time (7 days) inoculation access period with CaLas-infected vectors caused SA-associated upregulation of PR-1, stimulating defense response after a long period of infection without herbivory (270 and 360 days). In contrast, while repeated (monthly) 'pulses' of 7 day feeding injury by psyllids stimulated immunity in CaLas-infected citrus by increasing SA in leaves initially (up to 120 days), long-term (270 and 360 days) repeated herbivory caused SA to decrease coincident with upregulation of genes associated with SA metabolism (BMST and DMR6). Similarly, transcriptional responses and metabolite (SA and its analytes) accumulation in citrus leaves exposed to a continuously reproducing population of D. citri exhibited a transitory upregulation of genes associated with SA signaling at 120 days and a posterior downregulation after long-term psyllid (adults and nymphs) feeding (270 and 360 days).

conclusionsHerbivory played an important role in regulation of SA accumulation in mature leaves of C. sinensis, whether or not those trees were coincidentally infected with CaLas. Our results indicate that prevention of feeding injury inflicted by D. citri from the tritrophic interaction may allow citrus plants to better cope with the consequences of CaLas infection, highlighting the importance of vector suppression as a component of managing this cosmopolitan disease.

Indexed as

HerbivoryHost-Pathogen InteractionsPlant ImmunityAnimalsCitrus sinensisHemipteraLiberibacterPlant DiseasesPlant Growth RegulatorsSalicylic AcidPlant Growth RegulatorsSalicylic AcidDiaphorina citriGene expressionHuanglongbingMetabolomicsPlant defenseSalicylic acidVector-host-pathogen interactions

Identifiers

PMID34979915
PMCPMC8722004
OpenAlexW4225587616

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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 OpenQuestion graph.