The oomycete broad‐host‐range pathogen <i>Phytophthora capsici</i>

Lamour, Kurt; Stam, Remco; Jupe, Julietta; Huitema, Edgar

doi:10.1111/j.1364-3703.2011.00754.x

Cited by 339 publications

(305 citation statements)

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“…En la actualidad, en México, al igual que en el resto del mundo, la enfermedad de las plantas conocida como marchitez del chile, producida por P. capsici, es un grave problema para los productores de esta hortalizas (Lamour, Stam, Jupe, Huitema, 2012). Se ha reportado que en el año 2011 se registró en México una producción de dos millones de toneladas de chile, lo cual representa alrededor de 13 224 millones de pesos (Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y Alimentación [Sagarpa], 2014), reflejando la importancia económica que tiene este fitopatógeno, ya que es difícil controlar debido a que puede causar múltiples síndromes al infectar raíces, follaje y frutos del cultivo de chile (Oelke, Bosland & Steiner, 2003).…”

Section: Discussionunclassified

Effect of aqueous extracts of leaves of creosote bush (Larreas tridentata), tarbush (Flourensia cernua) and oak (Quercus pungens) on in vitro mycelial growth of phytopathogenic fungi

Valero-Galván¹,

Díaz²,

Fernández³

2014

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Section: Discussionunclassified

Effect of aqueous extracts of leaves of creosote bush (Larreas tridentata), tarbush (Flourensia cernua) and oak (Quercus pungens) on in vitro mycelial growth of phytopathogenic fungi

Valero-Galván¹,

Díaz²,

Fernández³

2014

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“…Since then, P. capsici has been identified on several continents including North and South America, Asia, Europe, and Africa . In parts of the United States and Africa, sexual reproduction and oospore formation has been observed; however asexual reproduction is far more common in South America (Lamour et al 2011). The different climate of the continents on which P. capsici is found also affects the symptoms and severity of the disease, in which a greater range of symptoms affecting the whole plant, including leaf infection, damping off of the root, and stunted plant growth are observed in moister areas Lamour et al 2011).…”

Section: Host Range Taxonomy and Symptoms Of Phytophthora Capsicimentioning

confidence: 99%

“…P. capsici is classified in the Kingdom Chromista, Phylum Oomycota, Class Oomycetes, Order Peronosporales, Family Peronosporaceae, Genus Phytophthora, Species capsici (Lamour et al 2011). The pathogen was first described in 1922 on chili pepper collected in 1918 from a New Mexico Agriculture Experiment Station (Lamour et al 2011;Leonian 1922). Since then, P. capsici has been identified on several continents including North and South America, Asia, Europe, and Africa .…”

Section: Host Range Taxonomy and Symptoms Of Phytophthora Capsicimentioning

confidence: 99%

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A genomics perspective on cucurbit-oomycete interactions

Burkhardt

Day

2013

Plant Biotechnology

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Pseudoperonospora cubensis and Phytophthora capsici are plant pathogenic oomycetes that are severe threats to cucurbit cultivation because of the their global distribution, their broad host range among the Cucurbitaceae family, and their ability to overcome susceptibilities to host, environment, and chemical management. Historically, these pathogens have been extensively studied in terms of their life cycles and infection strategies in order to determine appropriate methods to manage disease. In recent years, the genomes of both pathogens have been sequenced, which will lead to greater opportunities for pathogen detection and will help researchers to better understand the host-pathogen interaction. In Ps. cubensis, the transcriptomes of both Ps. cubensis and Cucumis sativus (cucumber) have been sequenced, and this data is being analyzed to determine the function of Ps. cubensis effectors and the role of alternative splicing in the regulation of pathogen gene expression. Previous and ongoing work is being done to determine cucumber genes involved in resistance. In P. capsici, effectors have been identified in the genome sequence, and the genome being used to identify variation in different P. capsici isolates. Future work is needed to give biological meaning to genomics data and to determine mechanisms of pathogenicity in oomycetes and resistance in cucurbits. Herein, we will present an overview of the current and future objectives of genome-based research in this area, describing the molecular mechanisms of pathogen virulence and host response to infection.

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“…The wide host range of P. capsici consists of more than 45 species of crops and weeds belonging to 14 families [7][8][9][10]. The pathogen is a heterothallic, soil-borne oomycete (water-mold) characterized by asexually produced motile, biflagellate zoospores and sexually produced thick-walled oospores.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Selected Bacterial Endophytes for Biocontrol Potential against Phytophthora Blight of Bell Pepper (Capsicum annuum L.)

A¹,

Mt²

2017

J Plant Pathol Microbiol

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Phytophthora blight, caused by Phytophthora capsici, is the most destructive disease of bell pepper in the United States. The effectiveness of current management strategies is limited by the long-term survival of oospores, wide host range, aggressive fungicide-resistant isolates, and lack of resistant cultivars with acceptable agronomic traits. Biological control is a viable alternative, and the use of endophytic microorganisms as biological control agents (BCA) has attracted widespread attention because they colonize the same ecological niches as plant pathogens. Seven isolates of bacterial endophytes in three genera Serratia (B17B), Enterobacter (E), and Bacillus (IMC8, Y, Ps, Psl and Prt), isolated from papaya, snap bean and flowering dogwood were evaluated for effects on P. capsici mycelial growth in vitro, and on disease severity and plant growth in greenhouse environment. All isolates significantly inhibited the mycelial growth of P. capsici with Ps, Psl and Prt having superior inhibitory effects. Seed treatments with Ps, Psl and Prt followed by plant inoculation with P. capsici reduced disease severity, and significantly increased plant shoot height, fresh weight, and fruit yield (number and weight) with Ps and Prt being slightly superior to Psl. Compatibility tests between isolates showed that only B17B and Y were compatible with each other. Sensitivity tests to different levels of mefenoxam (Ridomil Gold SL) showed that Ps, Psl and Prt were tolerant to the fungicide, while P. capsici was highly sensitive. Thus, Ps, Psl and Prt can be used in rotation with mefenoxam to reduce the frequency of fungicide usage for a more environmentally friendly, long lasting, consistent, and effective control of phytophthora blight. Overall, all isolates tested are potential BCAs against P. capsici, but more greenhouse and field studies are required to confirm in vitro results for all isolates that showed good potential in in vitro studies.

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The oomycete broad‐host‐range pathogen Phytophthora capsici

Abstract: Phytophthora capsici genome database: http://genome.jgi-psf.org/Phyca11/Phyca11.home.html. Molecular tools to identify Phytophthora isolates: http://phytophthora-id.org.

Cited by 339 publications

References 50 publications

Effect of aqueous extracts of leaves of creosote bush (Larreas tridentata), tarbush (Flourensia cernua) and oak (Quercus pungens) on in vitro mycelial growth of phytopathogenic fungi

Effect of aqueous extracts of leaves of creosote bush (Larreas tridentata), tarbush (Flourensia cernua) and oak (Quercus pungens) on in vitro mycelial growth of phytopathogenic fungi

A genomics perspective on cucurbit-oomycete interactions

Evaluation of Selected Bacterial Endophytes for Biocontrol Potential against Phytophthora Blight of Bell Pepper (Capsicum annuum L.)

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