TITLE

Non-host resistance responses of Arabidopsis thaliana to the coffee leaf rust fungus (Hemileia vastatrix)

AUTHOR(S)
Gil Azinheira, Helena; do Céu Silva, Maria; Talhinhas, Pedro; Medeira, Clara; Maia, Isabel; Petitot, Anne-Sophie; Fernandez, Diana
PUB. DATE
July 2010
SOURCE
Botany;Jul2010, Vol. 88 Issue 7, p621
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Leaf rust, caused by Hemileia vastatrix Berk & Broome, is the most destructive fungal disease of coffee. In the absence of a suitable gene validation system in coffee, the objective of this study was to investigate whether the model plant Arabidopsis thaliana (L.) Heynh. may be used as a heterologous system for the molecular dissection of coffee responses to leaf rust. Histological examination of A. thaliana (Col-0) leaves inoculated with H. vastatrix (race II) showed that by 24 h after inoculation (hai), H. vastatrix uredospores differentiated appressoria and penetrated the stomata, but failed to form haustoria. Arabidopsis thaliana cellular resistance responses included hypersensitive-like response (HR) of stomata guard cells together with accumulation of phenolic compounds and callose deposition in walls of epidermal and mesophyll cells. Results indicate that H. vastatrix infection triggered the induction of a set of defence-related genes peaking at 18 and 42 hai. The non-host HR triggered by H. vastatrix in the model plant A. thaliana makes it usable to infer the function of coffee genes involved in pre-haustorial rust resistance.
ACCESSION #
57773537

 

Related Articles

  • Cellular and molecular analyses of coffee resistance to Hemileia vastatrix and nonhost resistance to Uromyces vignae in the resistance-donor genotype HDT832/2. Diniz, Inês; Talhinhas, Pedro; Azinheira, Helena; Várzea, Vítor; Medeira, Clara; Maia, Isabel; Petitot, Anne-Sophie; Nicole, Michel; Fernandez, Diana; do Céu Silva, Maria // European Journal of Plant Pathology;May2012, Vol. 133 Issue 1, p141 

    In Arabica coffee breeding, some of the most used sources of resistance to leaf rust ( Hemileia vastatrix) are natural Coffea arabica x canephora hybrids ('Híbrido de Timor'). To decipher the cellular and molecular nature of that resistance, leaves of genotype HDT832/2, were challenged with...

  • Coffee Nerves in Brazil.  // Time;10/19/1970, Vol. 96 Issue 16, p62 

    The article presents information regarding a coffee tree disease caused by a yellow-orange fungus called Hemileia vastatrix. The disease has spread southeastern Brazil and threatening 2 billion plants that yield a third of the world's coffee. It is informed that scientists are experimenting with...

  • Coffee rust regains foothold. Cressey, Daniel // Nature;1/31/2013, Vol. 493 Issue 7434, p587 

    The article focuses on the efforts of nations struck by coffee rust to thwart the outbreak caused by fungus Hemileia vastatrix in Central America. It notes that changes to the coffee management practices help control the disease in Costa Rica. Columbia introduces resistant strains alongside...

  • Antixenosis resistance to leaf miner Leucoptera coffeella in Coffea species. Matos, José; Guerreiro-Filho, Oliveiro; Gonçalves, Wallace; Ramiro, Daniel; Reis Fatobene, Bárbhara // Euphytica;Sep2011, Vol. 181 Issue 2, p253 

    The coffee leaf miner, Leucoptera coffeella, is the most important pest of Coffea arabica plantations in Brazil, and all cultivars are susceptible to the insect. However, distinct reactions have been observed in other species, such as C. congensis and C. canephora. In this work, the occurrence...

  • Heterologous chitinase gene expression to improve plant defense against phytopathogenic fungi. Schickler, H; Chet, I // Journal of Industrial Microbiology & Biotechnology;Sep97, Vol. 19 Issue 3, p196 

    Agricultural crops worldwide suffer from a vast array of fungal diseases which cause severe yield losses. Upon interaction with a pathogen, plants initiate a complex network of defense mechanisms, among which is a dramatic increase in chitinase activity. Chitinases are capable of hydrolyzing...

  • Involvement of OsNPR1/NH1 in rice basal resistance to blast fungus Magnaporthe oryzae. Jia-Xun Feng; Lin Cao; Juan Li; Cheng-Jie Duan; Xue-Mei Luo; Ning Le; Haihong Wei; Shujia Liang; Chengcai Chu; Qinghua Pan; Ji-Liang Tang // European Journal of Plant Pathology;Oct2011, Vol. 131 Issue 2, p221 

    Rice blast disease, caused by the fungus Magnaporthe oryzae, is a major threat to worldwide rice production. Plant basal resistance is activated by virulent pathogens in susceptible host plants. OsNPR1/NH1, a rice homolog of NPR1 that is the key regulator of systemic acquired resistance in...

  • Annotation of a hybrid partial genome of the coffee rust (Hemileia vastatrix) contributes to the gene repertoire catalog of the Pucciniales. Cristancho, Marco A.; Giraldo, William; Escobar, Carolina; Rozo, Yomara; Rivera, Luis F.; Durán, Andrés; Gaitán, Alvaro L.; Botero-Rozo, David Octavio; Tabima, Javier; Riaño-Pachón, Diego Mauricio; Restrepo, Silvia; Eilam, Tamar; Anikster, Yehoshua // Frontiers in Plant Science;Oct2014, Vol. 5, p1 

    Coffee leaf rust caused by the fungus Hemileia vastatrix is the most damaging disease to coffee worldwide. The pathogen has recently appeared in multiple outbreaks in coffee producing countries resulting in significant yield losses and increases in costs related to its control. New...

  • The transcriptome of Arabidopsis thaliana during systemic acquired resistance. Maleck, Klaus; Levine, Aaron; Eulgem, Thomas; Morgan, Allen; Schmid, Jürg; Lawton, Kay A.; Dangl, Jeffery L.; Dietrich, Robert A. // Nature Genetics;Dec2000, Vol. 26 Issue 4, p403 

    Infected plants undergo transcriptional reprogramming during initiation of both local defence and systemic acquired resistance (SAR). We monitored gene-expression changes in Arabidopsis thaliana under 14 different SAR-inducing or SAR-repressing conditions using a DNA microarray representing...

  • Lytic Enzymes of Trichoderma and Their Role in Plant Defense from Fungal Diseases: A Review. Markovich, N. A.; Kononova, G. L. // Applied Biochemistry & Microbiology;Jul/Aug2003, Vol. 39 Issue 4, p341 

    Lytic enzymes of mycoparasitic fungi of the genus Trichoderma, capable of suppressing a number of fungal phytopathogens that originate in air or soil, are reviewed. The topics analyzed include (1) regulation of production of chitinases, β-1,3-glucanases, and proteases; (2) molecular and...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics