Phylogeny and pathogenicity of Lasiodiplodia species associated with dieback of mango in Peru

Rodríguez-Gálvez, E.; Guerrero, Pakita; Barradas, Carla; Crous, Pedro W.; Alves, Artur

doi:10.1016/j.funbio.2016.06.004

Cited by 102 publications

(75 citation statements)

References 29 publications

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“…2012. MycoBank MB564516.Lasiodiplodia laeliocattleyae was described from the Laeliocattleya orchid in Italy(Rodríguez-Gálvez et al 2016) and has also been reported from Mangifera indica (Mango) in Egypt, Jatropha curcas in Brazil(Machado et al 2014) and Adansonia grandidieri in Madagascar (this study). This species has conidial sizes that overlap with those of L. theobromae, although the conidia of L. laeliocattleyae are slightly smaller than those reported for L. theobromae.…”

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confidence: 53%

Phylogenetic species recognition and hybridisation in Lasiodiplodia : A case study on species from baobabs

et al. 2017

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Lasiodiplodia species (Botryosphaeriaceae, Ascomycota) infect a wide range of typically woody plants on which they are associated with many different disease symptoms. In this study, we determined the identity of Lasiodiplodia isolates obtained from baobab (Adansonia species) trees in Africa and reviewed the molecular markers used to describe Lasiodiplodia species. Publicly available and newly produced sequence data for some of the type strains of Lasiodiplodia species showed incongruence amongst phylogenies of five nuclear loci. We conclude that several of the previously described Lasiodiplodia species are hybrids of other species. Isolates from baobab trees in Africa included nine species of Lasiodiplodia and two hybrid species. Inoculation trials with the most common Lasiodiplodia species collected from these trees produced significant lesions on young baobab trees. There was also variation in aggressiveness amongst isolates from the same species. The apparently widespread tendency of Lasiodiplodia species to hybridise demands that phylogenies from multiple loci (more than two and preferably four or more) are compared for congruence prior to new species being described. This will avoid hybrids being incorrectly described as new taxa, as has clearly occurred in the past.

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confidence: 53%

Phylogenetic species recognition and hybridisation in Lasiodiplodia : A case study on species from baobabs

et al. 2017

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“…This is especially true in South Africa and Namibia where these fungi have been sampled at least as much, or even more intensively, than in many other parts of the world. No hybrid species have been reported in the region yet, but as Cruywagen et al (2017) and Rodríguez-Gálvez et al (2017) have recently shown that this needs to be considered for the Botryosphaeriales and in particular for Lasiodiplodia spp.…”

Section: Discussionmentioning

confidence: 99%

Diversity of tree-infecting Botryosphaeriales on native and non-native trees in South Africa and Namibia

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Wingfield

Gryzenhout

et al. 2017

Australasian Plant Pathol.

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The Botryosphaeriales includes serious plant pathogens with a broad host and geographic distribution globally. In South Africa and Namibia, these fungi include important pathogens of native and non-native woody plants, and have consequently been studied extensively. Here we synthesize the information from the previous studies, particularly in the last decade, that report 62 species in the Botryosphaeriales from 66 hosts across South Africa and Namibia. Of these, 52 species have been reported from native hosts, 17 are from nonnative hosts and twelve of these species occur on both native and non-native trees in the region. Much of the diversity of the Botryosphaeriales can be ascribed to native species that have fairly limited host and geographic ranges. Neofusicoccum parvum is amongst the most common species on both native and non-native hosts and it is thought to be native to the region. In contrast, Botryosphaeria dothidea, which is certainly an introduced species, is also widespread, and is very common on both native and non-native plants. Overall this synthesis underscores the growing understanding of the diversity of an important group of tree pathogens, their apparently common global spread as latent agents of disease, as well as their apparently common movement between commercial and native ecosystems.

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“…jatrophicola that have recently been considered as synonyms by Rodríguez et al 2016 and L. pseudotheobromae in the ITS region, differing in seven bases compared with L. iraniensis = L. jatrophicola, and eight bases with L. pseudotheobromae.…”

Section: Phylogenetic Analysesmentioning

confidence: 99%

Endophytic Botryosphaeriaceae, including five new species, associated with mangrove trees in South Africa

et al. 2017

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Little is known regarding the fungi, especially fungal pathogens, associated with mangroves in Africa. This includes fungi in the Botryosphaeriaceae that comprise numerous opportunistic, stress-associated pathogens often associated with trees affected by environmental and anthropogenically generated stresses, such as those affecting mangroves. We investigated the occurrence of endophytic Botryosphaeriaceae along the entire distribution of mangroves in South Africa. Asymptomatic branches were collected from ten localities and six mangrove species. Isolates resembling species of Botryosphaeriaceae were identified based on multi-gene sequence data of the internal transcribed spacer regions (ITS), including the 5.8S nrRNA, the beta-tubulin (tub2), partial translation elongation factor 1-alpha (tef1-α), and DNA-directed RNA polymerase II second largest subunit (rpb2) gene regions. Inoculation trials were conducted on healthy branches of Avicennia marina and Bruguiera gymnorrhiza to evaluate the potential pathogenicity of the collected species. Fourteen species in the Botryosphaeriaceae belonging to four genera, Botryosphaeria, Diplodia, Lasiodiplodia, and Neofusicoccum were collected, including five new species. Neofusicoccum was the most prevalent genus followed by Lasiodiplodia, with species of Diplodia and Botryosphaeria being the least frequent. The inoculation studies revealed that one of the new species, Lasiodiplodia avicenniae is highly pathogenic to A. marina and could pose a threat to the health of these trees.

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Phylogeny and pathogenicity of Lasiodiplodia species associated with dieback of mango in Peru

Cited by 102 publications

References 29 publications

Phylogenetic species recognition and hybridisation in Lasiodiplodia : A case study on species from baobabs

Phylogenetic species recognition and hybridisation in Lasiodiplodia : A case study on species from baobabs

Diversity of tree-infecting Botryosphaeriales on native and non-native trees in South Africa and Namibia

Endophytic Botryosphaeriaceae, including five new species, associated with mangrove trees in South Africa

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