Oomycete Genetics and Genomics

Lamour, Kurt; Kamoun, Sophien

doi:10.1002/9780470475898

Cited by 69 publications

(3 citation statements)

References 562 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We confirmed two main lineages, with four different haplogroups and five haplotypes among 27 studied A. astaci strains. The haplogroups detected were 1) the A-haplogroup with the ahaplotype strains originating from Orconectes sp., Pacifastacus leniusculus, and Astacus astacus 2) the B-haplogroup with the b-haplotype strains originating from the Pacifastacus leniusculus, 3) the D-haplogroup with the d1 and d2-haplotypes strains originating from Procambarus clarkii, and 4) the E-haplogroup with the e-haplotype strains originating from the The crayfish plague, caused by Aphanomyces astaci (Schikora), is the most devastating crayfish disease known to date (Cerenius et al 2009;Jussila et al 2015). Aphanomyces astaci is listed among the 100 worst invasive species in the world by the Global Invasive Species Specialist Group of the International Union for Conservation of Nature (IUCN; Lowe et al 2004), being the main reason for the reducing numbers of the native crayfish throughout Europe (Souty-Grosset et al 2006).…”

Section: Discussionmentioning

confidence: 99%

MtDNA allows the sensitive detection and haplotyping of the crayfish plague disease agentAphanomyces astacishowing clues about its origin and migration

et al. 2018

View full text Add to dashboard Cite

The oomycete Aphanomyces astaci, the causative agent of crayfish plague, is listed as one of the 100 worst invasive species in the world, destroying the native crayfish populations throughout Eurasia. The aim of this study was to examine the potential of selected mitochondrial (mt) genes to track the diversity of the crayfish plague pathogen A. astaci. Two sets of primers were developed to amplify the mtDNA of ribosomal rnnS and rnnL subunits. We confirmed two main lineages, with four different haplogroups and five haplotypes among 27 studied A. astaci strains. The haplogroups detected were (1) the A-haplogroup with the a-haplotype strains originating from Orconectes sp., Pacifastacus leniusculus and Astacus astacus; (2) the B-haplogroup with the b-haplotype strains originating from the P. leniusculus; (3) the D-haplogroup with the d1 and d2-haplotypes strains originating from Procambarus clarkii; and (4) the E-haplogroup with the e-haplotype strains originating from the Orconectes limosus. The described markers are stable and reliable and the results are easily repeatable in different laboratories. The present method has high applicability as it allows the detection and characterization of the A. astaci haplotype in acute disease outbreaks in the wild, directly from the infected crayfish tissue samples.

show abstract

Section: Discussionmentioning

confidence: 99%

MtDNA allows the sensitive detection and haplotyping of the crayfish plague disease agentAphanomyces astacishowing clues about its origin and migration

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Subsequent germination depends on several important factors such as light, temperature, humidity, plant extracts and microbial metabolites. Germinated oospores form primary zoosporangia (macrosporangia), which release zoospores that act as described above (Burruano, 2000 ; Agrios, 2005 ; Lamour and Kamoun, 2009 ; Spencer-Phillips et al, 2016 ; Tröster, 2016 ).…”

Section: Life Cycle and Infection Mechanismsmentioning

confidence: 99%

Plasmopara viticola the Causal Agent of Downy Mildew of Grapevine: From Its Taxonomy to Disease Management

et al. 2022

View full text Add to dashboard Cite

Plasmopara viticola (P. viticola, Berk. & M. A. Curtis; Berl. & De Toni) causing grapevine downy mildew is one of the most damaging pathogens to viticulture worldwide. Since its recognition in the middle of nineteenth century, this disease has spread from America to Europe and then to all grapevine-growing countries, leading to significant economic losses due to the lack of efficient disease control. In 1885 copper was found to suppress many pathogens, and is still the most effective way to control downy mildews. During the twentieth century, contact and penetrating single-site fungicides have been developed for use against plant pathogens including downy mildews, but wide application has led to the appearance of pathogenic strains resistant to these treatments. Additionally, due to the negative environmental impact of chemical pesticides, the European Union restricted their use, triggering a rush to develop alternative tools such as resistant cultivars breeding, creation of new active ingredients, search for natural products and biocontrol agents that can be applied alone or in combination to kill the pathogen or mitigate its effect. This review summarizes data about the history, distribution, epidemiology, taxonomy, morphology, reproduction and infection mechanisms, symptoms, host-pathogen interactions, host resistance and control of the P. viticola, with a focus on sustainable methods, especially the use of biocontrol agents.

show abstract

“…Earlier, malachite green was used for controlling and treatment of saprolegniasis but due to its toxicity and carcinogenic effects, use of this chemical has been globally banned in 2002 (Fugelstad et al, 2009;Robertson et al, 2009;Van west, 2006). This ban has resulted in increased incidence of saprolegniasis in the aquaculture industry across the world leading to substantial monetary losses.…”

Section: Introductionmentioning

confidence: 99%

Effect of miconazole nitrate on immunological response and its preventive efficacy in Labeo rohita fingerlings against oomycetes Saprolegnia parasitica

Singh¹,

Saha²,

Saha³

et al. 2018

Journal of Fish Diseases

View full text Add to dashboard Cite

This study evaluated the effect of sublethal doses of antifungal drug miconazole nitrate (MCZ) on immunological responses and its role as a prophylactic drug against S. parasitica in Labeo rohita fingerlings. Fish were fed with sublethal doses of MCZ, that is, T1-6.30 mgMCZ kgBW , T2-12.61 mgMCZ kgBW and T3-25.22 mgMCZ kgBW , and sampling was done at different time intervals for 240 hr. Immunological parameters viz. lysozyme activity, oxygen radical production and plasma antiprotease activity showed significant enhancement (p < 0.05) in fish fed with T2 and T3 doses. Expression of immune-relevant genes such as TLR-22 and β2-M showed significantly higher expression at 6 hr and 24 hr of sampling in both liver and head kidney. However, these genes showed a downregulation after 120 hr of sampling in both the tissues. Preventive efficacy study showed that single dose of MCZ provides protection against oomycetes up to the fourth day of infection. Significantly higher mortality was observed in control diet-fed fish as compared to fish fed with MCZ medicated diet. Thus, it can be concluded that the MCZ can act as a potent antifungal agent for preventing oomycetes infection as well as to enhance the immune response.

show abstract

Oomycete Genetics and Genomics

Cited by 69 publications

References 562 publications

MtDNA allows the sensitive detection and haplotyping of the crayfish plague disease agentAphanomyces astacishowing clues about its origin and migration

MtDNA allows the sensitive detection and haplotyping of the crayfish plague disease agentAphanomyces astacishowing clues about its origin and migration

Plasmopara viticola the Causal Agent of Downy Mildew of Grapevine: From Its Taxonomy to Disease Management

Effect of miconazole nitrate on immunological response and its preventive efficacy in Labeo rohita fingerlings against oomycetes Saprolegnia parasitica

Contact Info

Product

Resources

About