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Proteomic analysis of apoplastic fluid of Coffea arabica leaves highlights novel biomarkers for resistance against Hemileia vastatrix

Overview of attention for article published in Frontiers in Plant Science, June 2015
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Title
Proteomic analysis of apoplastic fluid of Coffea arabica leaves highlights novel biomarkers for resistance against Hemileia vastatrix
Published in
Frontiers in Plant Science, June 2015
DOI 10.3389/fpls.2015.00478
Pubmed ID
Authors

Leonor Guerra-Guimarães, Rita Tenente, Carla Pinheiro, Inês Chaves, Maria do Céu Silva, Fernando M. H. Cardoso, Sébastien Planchon, Danielle R. Barros, Jenny Renaut, Cândido P. Ricardo

Abstract

A proteomic analysis of the apoplastic fluid (APF) of coffee leaves was conducted to investigate the cellular processes associated with incompatible (resistant) and compatible (susceptible) Coffea arabica-Hemileia vastatrix interactions, during the 24-96 hai period. The APF proteins were extracted by leaf vacuum infiltration and protein profiles were obtained by 2-DE. The comparative analysis of the gels revealed 210 polypeptide spots whose volume changed in abundance between samples (control, resistant and susceptible) during the 24-96 hai period. The proteins identified were involved mainly in protein degradation, cell wall metabolism and stress/defense responses, most of them being hydrolases (around 70%), particularly sugar hydrolases and peptidases/proteases. The changes in the APF proteome along the infection process revealed two distinct phases of defense responses, an initial/basal one (24-48 hai) and a late/specific one (72-96 hai). Compared to susceptibility, resistance was associated with a higher number of proteins, which was more evident in the late/specific phase. Proteins involved in the resistance response were mainly, glycohydrolases of the cell wall, serine proteases and pathogen related-like proteins (PR-proteins), suggesting that some of these proteins could be putative candidates for resistant markers of coffee to H. vastatrix. Antibodies were produced against chitinase, pectin methylesterase, serine carboxypeptidase, reticuline oxidase and subtilase and by an immunodetection assay it was observed an increase of these proteins in the resistant sample. With this methodology we have identified proteins that are candidate markers of resistance and that will be useful in coffee breeding programs to assist in the selection of cultivars with resistance to H. vastatrix.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 111 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Brazil 2 2%
Mexico 1 <1%
Unknown 108 97%

Demographic breakdown

Readers by professional status Count As %
Researcher 26 23%
Student > Ph. D. Student 15 14%
Student > Bachelor 14 13%
Student > Master 13 12%
Other 6 5%
Other 16 14%
Unknown 21 19%
Readers by discipline Count As %
Agricultural and Biological Sciences 50 45%
Biochemistry, Genetics and Molecular Biology 20 18%
Medicine and Dentistry 3 3%
Business, Management and Accounting 2 2%
Computer Science 2 2%
Other 12 11%
Unknown 22 20%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 30 June 2015.
All research outputs
#22,778,604
of 25,394,764 outputs
Outputs from Frontiers in Plant Science
#19,729
of 24,621 outputs
Outputs of similar age
#236,393
of 277,410 outputs
Outputs of similar age from Frontiers in Plant Science
#216
of 287 outputs
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