Edel Pérez-López

Edel Pérez-López
Laval University | ULAVAL · Department of Phytology

PhD in Sciences (Hons)
Investigating Plant Pathogens

About

126
Publications
49,337
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
575
Citations
Citations since 2016
99 Research Items
561 Citations
2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
Introduction
Edel is an Assistant Professor at Université Laval, Département de Phytologie working with clubroot and the soil-borne obligate parasite Plasmodiophora brassicae, causal agent of clubroot, characterizing effector proteins and the mechanisms used by the pathogen to scape plant host immunity. We are also investigating the distribution and insect vectors of phytoplasmas in Canada.
Additional affiliations
March 2020 - January 2022
Laval University
Position
  • Professor (Assistant)
January 2018 - March 2020
University of Saskatchewan
Position
  • PostDoc Position
January 2017 - January 2018
Auburn University
Position
  • PostDoc Position
Education
August 2013 - March 2016
Universidad Veracruzana
Field of study
  • Phytopathology
September 2006 - July 2011
University of Havana
Field of study
  • Biochemestry

Publications

Publications (126)
Article
Full-text available
Background: Plasmodiophora brassicae is the causal agent of clubroot disease of cruciferous plants and one of the biggest threats to the rapeseed (Brassica napus) and brassica vegetable industry worldwide. Disease symptoms: In the advanced stages of clubroot disease wilting, stunting, yellowing, and redness are visible in the shoots. However, th...
Article
Full-text available
Le Québec est la principale province productrice de fraises au Canada. En 2018, la production de fraises était évaluée à un volume de plus de 15 millions de tonnes et représentait des revenus de 66 millions de dollars (Gouvernement du Québec, 2021). Malheureusement, dans les années à venir, les rendements de la culture pourraient être perturbés par...
Article
Full-text available
Phytoplasmas are insect-vectored, difficult-to-culture bacterial pathogens that infect a variety of crop and non-crop plants, and are associated with diseases that can lead to significant yield losses in agricultural production worldwide. Phytoplasmas are currently grouped in the provisional genus ‘Candidatus Phytoplasma’, which includes 49 ‘Candid...
Article
Full-text available
Blackleg, caused by Pectobacterium spp. and Dickeya spp., is an important disease of potatoes. During the period from November 20 and March 2021, stems of potato plants showing necrosis and rot symptoms, and chlorotic leaves, were collected from commercial production areas of the Mayabeque province of Cuba (Fig. 1A). After disinfestation of affecte...
Article
Marijuana (Cannabis sativa L.) is legal in Canada for medical and recreational purposes and is currently a multi-million-dollar industry. The province of Quebec follows British Columbia and Ontario in production acreage (Government of Canada 2018). During the growing season 2020-2021, five greenhouse growers throughout Quebec reported the presence...
Article
For years, the presence of clubroot disease and its causal agent, Plasmodiophora brassicae, in Mexico has been stated as a fact. However, an intensive search of the scientific literature in English and Spanish, as well as gray literature including theses and government reports, did not reveal any information about the actual detection of the pathog...
Chapter
A variety of sensitive and specific molecular diagnostic assays has been described for detecting nucleic acids in biological samples that may harbor pathogens of interest. These methods include very rapid, isothermal nucleic acid amplification methods that can be deployed outside of the laboratory environment, such as loop-mediated isothermal DNA a...
Research Proposal
Full-text available
Dear Colleagues, Clubroot is a devastating disease affecting plants into the Brassicaceae family worldwide. Plasmodiophora brassicae, the clubroot pathogen, is a soil-borne obligate parasite member of the eukaryotic group Rhizaria. In recent years, many important discoveries about the biology of the clubroot pathogen, the different mechanisms used...
Preprint
Full-text available
For years, the presence of clubroot disease and its causal agent, Plasmodiophora brassicae, in Mexico has been given by granted. However, after a long search in the scientific literature in English and Spanish, as well as grey literature including thesis and government reports, we were not able to find any information regarding the actual detection...
Article
Full-text available
Blueberry stunt phytoplasma (BBSP; ‘Candidatus Phytoplasma asteris’) is an insect-vectored plant pathogen that causes severe yield losses in blueberry (Vaccinium corymbosum), which is the most valuable fruit crop in Canada. Rapid, field-based diagnostic assays are desirable tools for the control of BBSP, as part of an integrated, proactive approach...
Article
Full-text available
Plant pathogen effector proteins are key to pathogen virulence. In susceptible host Brassicas, the clubroot pathogen, Plasmodiophora brassicae, induces the production of nutrient-sink root galls, at the site of infection. Among a list of 32 P. brassiae effector candidates previously reported by our group, we identified SSPbP53 as a putative apoplas...
Article
Full-text available
Clubroot is a devastating disease caused by the protist Plasmodiophora brassicae Woronin. After root hair colonization, the clubroot pathogen induces clubs that block water uptake, leading to dehydration and death. The study of the severity of plant diseases is very important. It allows us to characterize the level of resistance of plant germplasm...
Article
Full-text available
Strawberry green petal disease is a serious disease affecting strawberry plants in the Americas, Europe, and Australia. Strawberry green petal disease is caused by ‘Candidatus Phytoplasma asteris’-related strains, ‘Ca. P. hispanicum’-related strains, and ‘Ca. P. australiense’-related strains. This diagnostic guide provides details about the symptom...
Article
Plants have a sophisticated and multilayered immune system. However, plant pathogens, helped by effector proteins, have found several strategies to evade plant immunity. For instance, the clubroot pathogen Plasmodiophora brassicae is able to turn the roots of susceptible hosts into nutrient-sink galls suppressing pattern-triggered immunity (PTI) an...
Preprint
Full-text available
Blueberry stunt phytoplasma (BBSP; ‘ Candidatus Phytoplasma asteris’) is an insect-vectored plant pathogen that causes severe yield losses in blueberry ( Vaccinium corymbosum ), which is the most valuable fruit crop in Canada. Rapid, field-based diagnostic assays are desirable tools for the control of BBSP, as part of an integrated, proactive appro...
Preprint
Full-text available
Members of the Fusarium oxysporum species complex (FOSC) has the capacity to specialize into host-specific pathogens known as formae speciales through horizontal gene transfer between pathogenic and endophytic individuals. To this day, the origin of these formae speciales and the genetic determinants dictating the switch from endophytic to pathogen...
Article
Full-text available
Among the millions of microorganisms inhabiting the soils, some can be plant pathogens, meaning they can become a disease to plants. Some diseases are more well-known than others. This is the case of clubroot, a very atypical microorganism that infects cruciferous plants, such as cabbage, kale, canola, and the common research plant thale cress. In...
Article
Full-text available
Plasmodiophora brassicae is a devastating obligate, intracellular, biotrophic pathogen that causes clubroot disease in crucifer plants. Disease progression is regulated by effector proteins secreted by P. brassicae. Twelve P. brassicae putative effectors (PbPEs), expressed at various stages of disease development (0, 2, 5, 7, 14, 21 and 28 days pos...
Article
Full-text available
Clubroot is a devastating disease infecting roots of plants of the Brassicaceae family and responsible for 10–15% yield reduction on a global scale (Botero et al., 2019). The clubroot pathogen, Plasmodiophora brassicae, is an obligate intracellular biotroph that belongs to the class Phytomyxea within the eukaryote supergroup Rhizaria, one of the le...
Article
From 2018 to 2019 symptoms consistent with infection by plant pathogenic phytoplasma bacteria were observed in commercial flower greenhouses located in Atlixco, Puebla, Mexico. Two varieties of Argyranthemum spp. plants exhibited symptoms of phyllody, causing serious concerns among farmers. To determine if phytoplasmas were associated with the symp...
Preprint
Full-text available
Plants have a sophisticated and multilayered immune system. However, plant pathogens, helped by effector proteins, have found several strategies to evade plant immunity. For instance, the clubroot pathogen, Plasmodiophora brassicae, is able to turn the roots of the susceptible hosts into nutrient-sink galls surpassing patterns-triggered immunity (P...
Article
Full-text available
In recent years, the number of plant hosts affected by peanut witches’-broom group (16SrII) phytoplasma in Saudi Arabia has increased at a concerning speed. Since 2015 symptoms resembling phytoplasma-related diseases have been reported in Al-Qassim region affecting the wild plants globe amaranth, amaranthus, black nightshade, and buckthorn. Except...
Article
Clubroot is a devastating disease affecting cruciferous crops worldwide. Clubroot was first described in the 13th century in Russia and from that moment has been affecting European, Asian, and American brassica production. Plasmodiophora brassicae is the clubroot causal agent, and it is an obligate intracellular parasite that, as soil-borne resting...
Cover Page
Full-text available
The clubroot of a susceptible Brassica plant infected with Plasmodiophora brassicae and the identifi cation of effectors produced by P. b r a ss i c a e that are responsible for gall formation. (See Pérez-López et al. pp. 337–351. https://doi.org/10.1111/jeu.12784)
Preprint
Full-text available
'Candidatus Liberibacter asiaticus' (CLas) is an unculturable, Gram-negative, phloem restricted plant pathogenic bacterium associated with a very serious disease of citrus worldwide known as Citrus Huanglongbing (HLB). CLas is widely spread in the Americas. In Cuba, CLas has been associated with HLB symptoms and has seriously affected the Cuban cit...
Article
La rápida transmisión de SARS-CoV-2, agente causal de COVID-19 está causado una gran crisis mundial. La ciencia está enfocándose en la rápida elaboración de una vacuna, pero hay otros aspectos que mientras tanto, deben ser investigados. Te presentamos recientes descubrimientos sobre la estabilidad de SARS-CoV-2 en aerosol y superficies.
Article
Full-text available
Plasmodiophora brassicae (Wor.) is an obligate intracellular plant pathogen affecting Brassicas worldwide. Identification of effector proteins is key to understanding the interaction between P. brassicae and its susceptible host plants. To date, there is very little information available on putative effector proteins secreted by P. brassicae during...
Article
Full-text available
Los neonicotinoides son un grupo de insecticidas derivados de la nicotina que alcanzaron gran popularidad en los 90 y un amplio uso hasta años recientes, en los que el impacto negativo para las abejas y otros insectos beneficiosos se ha hecho visible. Este efecto negativo es la razón por la que los insecticidas neonicotinoides han sido prohibidos e...
Article
Full-text available
Watch a presentation about this research by first author Karolina Pusz-Bochenska. Surveillance for insect-transmitted pathogens of plants involves sampling insects in the field, followed by transport of the samples to the laboratory for DNA extraction and molecular analysis. Sample transport and DNA extraction are time consuming and can delay the i...
Article
Full-text available
Mucho se sabe de lo que ocurre dentro de la célula vegetal, pero increí-blemente los descubrimientos relacionados a muchos de los fenómenos que ocurren entre la membrana y la pared celular, tienen menos de 10 años. Este espacio extracelular localizado entre la membrana y la pared celular es conocido como el apoplasto.
Article
Bougainvillea is a genus of evergreen woody climbers or bushes native to South America. The plants in the genus often produce multiple inflorescences consisting of sepal-like bracts and waxy flowers. Being popular ornamental plants, bougainvilleas are widely cultivated in tropical, subtropical, and temperate areas around the world. Bougainvillea x...
Article
Full-text available
Las propiedades medicinales del ácido salicílico han sido conocidas desde hace al menos 1 300 años. Restos arqueológicos encontrados en Norteamérica y Asia indican que estas culturas usaban infusiones de corteza de sauce para tratar fiebres. Pero no fue hasta 1828 que el químico alemán Johann Andreas Buchner aisló y nombró el compuesto "salicina",...
Article
Full-text available
Desde el 2006, una nueva rama de la biología vegetal ha tratado de ganar terreno: la neurobiología vegetal, pero desde sus inicios la controversia ha rondado a los investiga-dores que abogan por ella. ¿Por qué la controversia? Pues principalmente porque hasta la fecha no se ha demostrado que las plantas posean un sistema nervioso, y el término "neu...
Article
Full-text available
Nutrientes desde el cielo: la curiosa dieta de los tiburones tigre Edel Pérez-López Rev. Biol. Trop. Blog Serie 4 Los tiburones tigre (Galeocerdo cuvier) son una de las tantas criaturas que ha-bitan los mares tropicales. Como depredadores marinos, los tiburones tigre cazan sus presas de manera activa, incluyendo crustáceos, peces, serpientes, tortu...
Conference Paper
Full-text available
Los fitoplasmas ('Candidatus phytoplasma' spp.) causan pérdidas devastadoras en cultivos agrícolas. En las berries en México, han sido detectados el grupo 16SrI en fresa y 16SrXIII-(A/I) I en fresa, frambuesa, arándano y zarzamora. Estos patógenos se transmiten mediante material vegetal e insectos vectores, por lo que Programas de certificación del...
Article
Full-text available
USA and Mexico are among the top five strawberry (Fragaria x ananassa) producers worldwide. Argentina, Chile and other Latin American countries are also important strawberry producers, reason why the pest and disease surveillance in temperate and tropical regions is key to keep a high productivity. Strawberry plants are affected by many plant disea...
Conference Paper
Full-text available
Clubroot caused by Plasmodiophora brassicae, is a serious disease of cultivated cruciferous crops worldwide, however, the pathogenicity of P. brassicae is not well understood. Through RNA seq and expression analysis an array of putative, small secreted P. brassicae proteins (SSPbPs) has been identified. SSPbP53, is a cystatin- like protein highly e...
Article
Full-text available
Política de acceso abierto ("Open Access"): implicaciones para los científicos del tercer mundo Rev. Biol. Trop. Blog Serie 3 Si la investig ación es de calidad , la revista estará más interesa da en contar con el trabaj o entre sus publica ciones que en el dinero El acceso a la información es vital para los investigadores y científicos. Acceder a...
Article
Full-text available
Varias culturas mesoamericanas tienen entre sus mitos y leyendas la presencia de una divinidad en forma de serpiente con plumas, conocida como Serpiente Empluma-da. Los registros indican que la primera cultura que hizo referencia a esta deidad fueron los olmecas del golfo de México, quienes la presentaban como una serpiente roja con cresta de pluma...
Article
In recent decades, ‘Candidatus Liberibacter spp.’ have emerged as a versatile group of psyllid-vectored plant pathogens and endophytes capable of infecting a wide range of economically important plant hosts. The most notable example is ‘Candidatus Liberibacter asiaticus’ (CLas) associated with Huanglongbing (HLB) in several major citrus-producing a...
Article
Full-text available
Phytoplasmas are plant pathogenic bacteria that are associated with yield losses in many crop plants worldwide. Phytoplasma strain differentiation is accomplished using in silico restriction fragment length polymorphism (RFLP) analysis of 16S ribosomal RNA-encoding gene sequences, which has resulted in the definition of ribosomal groups and subgrou...
Article
Full-text available
Podría tener Perú varieda-des de crucíferas con resis-tencia natural al patógeno? Sin dudas esto es algo que vale la pena explorar Si el Norte fuera el Sur, ¿qué se sabría sobre la hernia de la colza? Edel Pérez-López Pues respondiendo a la interrogante del título, si el Norte fuera el Sur se sabría muy poco sobre la enfermedad conocida como "herni...
Article
Full-text available
Clubroot caused by Plasmodiophora brassicae is an important disease of cruciferous crops worldwide. In Latin America (from Mexico to Chile, including the Caribbean), most of the area in cruciferous crops is devoted to oilseed rape (Brassica napus) (~230,600 ha) in Brazil, Chile, Paraguay, Uruguay and Argentina, while cruciferous vegetables such as...
Article
Full-text available
Por increíble que parezca, todas las esperanzas en la ciencia de la regeneración están en un pequeño animal en peligro de extinción oriundo de México: el axolotl (Ambystoma mexicanum). Mientras algunas especies de salamandras son famosas en la cultura popular por su capacidad para regenerar la cola, el axolotl atrajo la atención de la comunidad cie...
Article
Full-text available
Date palm and Mexican fan palm trees showing symptoms previously associated with phytoplasmas were observed in the Al- Qassim region, Saudi Arabia in 2017. DNA amplification, sequencing, and phylogenetic analysis revealed the presence of a ‘Candidatus Phytoplasma australasia’- related strain in eighteen of the eighty-three symptomatic plants collec...
Chapter
Phytoplasmas (‘Candidatus Phytoplasma’) are plant pathogens associated with important economic losses in crop production around the world. Similarly to most tropical countries, Cuba is seriously affected by plant diseases associated with phytoplasmas and few management strategies are available to growers to control the pathogens. In this chapter, w...
Book
With 160+ countries and islands, the tropical belt is the geographical region centered on the equator and limited by the tropics of Cancer and Capricorn. Tropical agricultural production is mostly for local consumption but cash crops are also present. Tropical agriculture is characterized by a significant lack of capital in research and agricultura...
Chapter
Phytoplasmas (‘Candidatus Phytoplasma’ spp.) are plant pathogenic bacteria that are transmitted by insects and cause developmental changes leading to altered floral morphologies and decreased seed set in a very wide variety of plant species, including most cultivated plants. Using rRNA and protein-encoding genes, 36 ribosomal groups and a similar n...
Article
Full-text available
Clubroot is an economically important disease affecting Brassica plants worldwide. Plasmodiophora brassicae is the protist pathogen associated with the disease, and its soil-borne obligate parasitic nature has impeded studies related to its biology and the mechanisms involved in its infection of the plant host. The identification of effector protei...
Article
Full-text available
No hay dudas que el descubrimiento de CRISPR/Cas, y sus potencialidades para editar genomas de forma dirigida, es uno de los descubrimientos científicos más impor-tantes en la historia de la biología. Desafortunadamente, desde el pasado año la lucha por las patentes sobre esta tecnología está siendo peleada en la corte. Las partes en esta batalla l...
Research Proposal
Full-text available
The idea of Clubroot Tracker was born from a story I heard during the Canola Palooza about a farmer that got clubroot in his farm after buying machinery from another farmer. So I though, why don´t put all the clubroot distribution in one place (now in separate maps from each province affected : Manitoba, Alberta, Ontario, Saskatchewan is in process...
Article
Full-text available
Date palm and Mexican fan palm trees showing symptoms previously associated with phytoplasmas were observed in the Al-Qassim region, Saudi Arabia in 2017. DNA amplification, sequencing, and phylogenetic analysis revealed the presence of a ‘Candidatus Phytoplasma australasia’- related strain in eighteen of the eighty-three symptomatic plants collect...
Article
Sugarcane is a common name for any of several tall perennial grass species of the genus Saccharum. As a major source for sugar production and an efficient feedstock for biofuel generation, sugarcane is widely cultivated in tropical and subtropical regions. Mexico alone produces over six million metric tons of cane sugar annually valued at 1.3 billi...
Article
Full-text available
Phytoplasmas ('Candidatus Phytoplasma' species) are phytopathogenic bacteria vectored by insects and are associated with crop diseases that cause severe yield losses by affecting reproductive tissue development. Infection of northern highbush blueberry plants (Vaccinium corymbosum; Ericaceae) with phytoplasma leads to yield losses by altering plant...
Article
Full-text available
In their article, Carrillo-Araujo et al. show that Phyllostomidae (New World leaf-nosed bat family) gut microbiome composition is closely associated with host phylogeny. They provide evidence that feeding-strategy plays a role in the microbiome composition of these bats (Carrillo-Araujo et al., 2015). We were particularly intrigued by their detecti...
Article
Full-text available
This is a small presentation as newly member of the Canadian Phytopathological Society.
Article
Full-text available
De 1975, año en el que se desarrolló el método de Sanger para secuenciar ácidos nucleicos, a la fecha, los avances en los métodos de secuenciación son incontables. Sin embargo el desarrollo de la tecnología Nanopore, considerada como secuenciación de cuarta generación, y desarrollada por Oxford Nanopore Technologies, ha contribuido notablemente hac...
Article
Full-text available
A draft genome sequence is presented for a strain of "Candidatus Phy-toplasma asteris" affecting canola plants in Saskatoon, Canada. This phytopathogenic bacterium was determined to be a 16SrI strain and features 16S rRNA-encoding gene sequence heterogeneity. P lants infected by insect-vectored phytoplasma ("Candidatus Phytoplasma spp.") feature a...
Poster
Full-text available
This symposium will bring together postdoctoral fellows from the University of Saskatchewan and local academic and industry professionals for an opportunity to discuss: ·The postdoctoral experience - challenges and prospects · Career and employment opportunities · The transition from academia to the private industry sector . Research currently unde...
Article
Full-text available
Potato (Solanum tuberosum) is a very economically important perennial tuberous crop in Saudi Arabia. Potato plants displaying symptoms associated with potato purple top disease, such as aerial tubers and purple and small leaves, were observed in Al-Bukairiyah, Fowlq and Buraydah, Al-Tarafiyah, Qassim governorate, Saudi Arabia. In this study, we exa...
Poster
Full-text available
Preliminary results on the identification of clubroot biomarkers to develop early diagnostic methods
Poster
Full-text available
Although there are some studies identifying and characterizing effector proteins of P. brassicae and their possible role in modulating the plant-pathogen interaction there is still a lot to do. The objective of the study is the identification and characterization of effector proteins involved in P. brassicae infection and subsequent clubroot diseas...
Article
Full-text available
Native corn in Mexico can be affected by maize bushy stunt disease (MBS), which can negatively impact maize-farming operations. Maize bushy stunt symptoms in native corn were linked to the presence of phytoplasmas through molecular analysis of symptomatic native corn plants in Mexico. These findings motivated a socioeconomic characterization and id...
Poster
Full-text available
The goal of our study was to determine for how long CLas is viable in seeds of citrus fruits stored at different temperatures.
Article
Full-text available
Phytoplasmas are wall-less bacteria, unculturable in vitro, and transmitted primarily by leafhoppers (Cicadellidae). Maize bushy stunt disease has been linked to phytoplasmas belonging to the16SrI-B subgroup and vectored by leafhoppers in the genus Dalbulus spp. (Hemiptera: Cicadellidae). The recent detection of maize bushy stunt affecting native c...
Article
Full-text available
Chicory (Cichorium intybus) is a perennial plant (Asteraceae) that grows wild in pasture fields in Saudi Arabia. Chicory plants displaying symptoms typically induced by phytoplasmas, such as bushy phenotype and stunt, were observed in the Mulayda region, Qassim governorate, Saudi Arabia. In this study we examined samples taken from three symptomati...