Ceratocystis fimbriata isolates on Mangifera indica have different levels of aggressiveness

Oliveira, Leonardo S. S.; Damacena, Michelle B.; Guimarães, Lúcio Mauro da Silva; Siqueira, Dalmo Lopes de; Alfenas, Acelino C.

doi:10.1007/s10658-016-0873-2

Cited by 31 publications

(36 citation statements)

References 25 publications

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“…However, Ceratocystis species have been mostly studied on non-native crop plants, with which they have not evolved Ferreira et al, 2010;Harrington et al, 2002;Johnson et al, 2005;Oliveira et al, 2015a). Isolates from certain non-native hosts have shown higher levels of aggressiveness to those hosts, but not all isolates from those populations have shown the same level of aggressiveness, that is, the populations as a whole are not truly host-specialized (Baker et al, 2003;Harrington et al, 2011;Oliveira et al, 2015bOliveira et al, , 2016Piveta et al, 2016;Zauza et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

A host specialized form of Ceratocystis fimbriata causes seed and seedling blight on native Carapa guianensis (andiroba) in Amazonian rainforests

et al. 2019

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a b s t r a c tCeratocystis fimbriata Ellis & Halsted recently was recorded causing seed and seedling blight on Carapa guianensis Aubl. (andiroba), a tree species native to the Amazon Rainforest and prized for its valuable timber and medicinal seed oil. C. fimbriata more commonly causes wilt type diseases in woody hosts, especially on non-native host trees. However, on andiroba the disease occurs on seedlings and seeds, affecting the species regeneration. We studied 73 isolates of C. fimbriata on andiroba from three regions of the Amazon Basin to see if they represented natural or introduced populations. Analysis of ITS rDNA sequences and phylogenetic analysis of mating type genes revealed new haplotypes of C. fimbriata from the Latin American Clade that were closely related to other Brazilian populations of the fungus. In mating experiments, andiroba isolates were inter-fertile with tester strains of C. fimbriata from Brazil and elsewhere, confirming that they belong to a single biological species. Using microsatellite markers, 14 genotypes and populations with intermediate levels of genetic variability were found, suggesting that the fungus is indigenous to the Amazon Basin. Inoculation tests indicated that the andiroba isolates are host-specialized on andiroba, supporting the proposition of the special form C. fimbriata f. sp. carapa.

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Section: Discussionmentioning

confidence: 99%

A host specialized form of Ceratocystis fimbriata causes seed and seedling blight on native Carapa guianensis (andiroba) in Amazonian rainforests

et al. 2019

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“…Subsequent phylogenetic analyses showed that the ITS marker was unreliable (Al Adawi et al 2013;Naidoo et al 2013) and phylogenetic analyses based on four informative gene regions and single nucleotide polymorphism (SNP) markers, could not distinguish these two species (Fourie et al 2015). As a result, C. acaciivora was considered synonymous with C. manginecans (Fourie et al 2015 (Firmino et al 2012;Harrington et al 2014;Valdetaro et al 2015;Oliveira et al 2016;Zhang et al 2017). Recent population genetic studies provide some evidence to support this view; isolates from kiwifruit (Actinidia spp.)…”

Section: Taxonomy and Plant Hostsmentioning

confidence: 99%

Ceratocystiswilt and canker – a disease that compromises the growing of commercialAcacia-based plantations in the tropics

Nasution

Glen

Beadle

et al. 2019

Australian Forestry

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Ceratocystis wilt and canker disease has severely compromised the profitability of Acacia mangium plantations in Southeast Asia. The focus of this review is on Ceratocystis wilt and canker disease in Acacia trees. Its aim is to synthesise information about this fungal pathogen that can be used to inform development of suitable disease-control strategies in forest plantations. The last 20 years have seen many taxonomic changes in Ceratocystis, with some disagreement as to species boundaries. Therefore, an understanding of the origins and development of this disease requires reference to other species, particularly in the context of the biology and fungal taxonomy, disease symptoms and mechanisms of fungal dispersal. The risks and impacts of the disease on the sustainability of Acacia wood production are examined. Observing or surveying disease symptoms in plantations, selecting and planting tolerant or resistant Acacia trees, and the potential of endophytic bacteria as biological control agents are also included in this review.

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“…To evaluate the resistance of the progenies, each plant was multiplied, by grafting, to obtain clonal replicates. "Imbu", susceptible to Ceratocystis wilt (Oliveira et al, 2016), served as rootstock. The number of individuals per family (Table 1) as well as the number of clonal replicates per plant varied due to differences in the number of plants obtained in each cross, due to differences in the number of plants that had their paternity confirmed by microsatellite markers and because there was variation in the survival of the grafted plants.…”

Section: Family (♀ X ♂)mentioning

confidence: 99%

“…The isolate of C. fimbriata SPMA3 from the culture collection of the Forest Pathology Laboratory (UFV/Viç osa, MG), obtained from infected host tissue of "Palmer" in Monte Alto, São Paulo, was used. This isolate was selected for its high degree of sporulation in culture and its high aggressiveness in a broad spectrum of mango cultivars (Oliveira et al, 2016). The identity of the isolate was confirmed by sequencing ITS, ␤-tubulin, TEF-1␣ and mating type gene regions of DNA and subsequent comparison with other sequences of C. fimbriata (Oliveira et al, 2015a).…”

Section: Inoculationsmentioning

confidence: 99%

Genetic control of resistance on Mangifera indica to Ceratocystis wilt

Arriel

Guimarães

Resende

et al. 2016

Scientia Horticulturae

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Ceratocystis wilt, caused by Ceratocystis fimbriata is one of the most serious limiting factors for mango production in Brazil. Despite efforts in the selection and the identification of mango cultivars resistant to Ceratocystis wilt, the genetic basis of the resistance remains unknown. Therefore, the objective of this study was to understand the inheritance of resistance to C. fimbriata by artificial inoculations of the pathogen in progenies of six commercial varieties of mango using "Tommy Atkins" as the male parent. The cultivars "Keitt", "Palmer", "Tommy Atkins" and "Van Dyke" were confirmed as moderately resistant, whereas "Coquinho", "Espada" and "Haden" were susceptible. The results of the inoculation on the progenies of these cultivars revealed that the resistance in mango is polygenic with a prevalence of genes expressing the effects of dominance and epistasis. The genetic gain with the selection of the 10 more resistant plants was 46%, which indicated a 46% reduction in disease severity. In general, a low frequency of the alleles favorable to disease resistance was observed in the population studied, which suggests the need for the introduction of new sources of genetic materials carrying the genes responsible for resistance.

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Ceratocystis fimbriata isolates on Mangifera indica have different levels of aggressiveness

Cited by 31 publications

References 25 publications

A host specialized form of Ceratocystis fimbriata causes seed and seedling blight on native Carapa guianensis (andiroba) in Amazonian rainforests

A host specialized form of Ceratocystis fimbriata causes seed and seedling blight on native Carapa guianensis (andiroba) in Amazonian rainforests

Ceratocystiswilt and canker – a disease that compromises the growing of commercialAcacia-based plantations in the tropics

Genetic control of resistance on Mangifera indica to Ceratocystis wilt

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