High distribution rate of an emerging fungal pathogen on mango: A case study from southern Iran

Majidi, Zahra; Goudarzi, Azadeh; Shamili, Mansoore; Bagheri, Abdoolnabi; Seyahooei, Majeed Askari

doi:10.1016/j.cropro.2020.105342

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…Strains of A. melanogenum can be isolated from diverse, mainly oligotrophic and aqueous habitats [5]-they were found in hypersaline water [7], in Greenland glacial ice [8], but also in association with plants [9,10] and in desert soil [11]. Importantly, A. melanogenum can colonize indoor environments and is found often in large numbers in washing machines [12], dishwashers [13], tap water [14], house dust [15], and food [16].…”

Section: Introductionmentioning

confidence: 99%

Virulence Traits and Population Genomics of the Black Yeast Aureobasidium melanogenum

Černoša

Sun²,

Fang³

et al. 2021

JoF

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The black yeast-like fungus Aureobasidium melanogenum is an opportunistic human pathogen frequently found indoors. Its traits, potentially linked to pathogenesis, have never been systematically studied. Here, we examine 49 A. melanogenum strains for growth at 37 °C, siderophore production, hemolytic activity, and assimilation of hydrocarbons and human neurotransmitters and report within-species variability. All but one strain grew at 37 °C. All strains produced siderophores and showed some hemolytic activity. The largest differences between strains were observed in the assimilation of hydrocarbons and human neurotransmitters. We show for the first time that fungi from the order Dothideales can assimilate aromatic hydrocarbons. To explain the background, we sequenced the genomes of all 49 strains and identified genes putatively involved in siderophore production and hemolysis. Genomic analysis revealed a fairly structured population of A. melanogenum, raising the possibility that some phylogenetic lineages have higher virulence potential than others. Population genomics indicated that the species is strictly clonal, although more than half of the genomes were diploid. The existence of relatively heterozygous diploids in an otherwise clonal species is described for only the second time in fungi. The genomic and phenotypic data from this study should help to resolve the non-trivial taxonomy of the genus Aureobasidium and reduce the medical hazards of exploiting the biotechnological potential of other, non-pathogenic species of this genus.

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Section: Introductionmentioning

confidence: 99%

Virulence Traits and Population Genomics of the Black Yeast Aureobasidium melanogenum

Černoša

Sun²,

Fang³

et al. 2021

JoF

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“…However, no document has been available regarding pre‐ and postharvest mango fruit rots in Hormozgan province. In 2019, we found high distribution rate of Aureobasidium melanogenum in the main mango‐growing regions of this area, causing leaf and fruit blights as well as twigs and branches dieback (Majidi et al 2021). This information is also needed for evaluation of occurrence and aetiology of mango fruit rots, as well as disease management during postharvest life of the fruits.…”

Section: Introductionmentioning

confidence: 99%

Fungal pathogens associated with pre‐ And postharvest fruit rots of mango in southern Iran

Goudarzi

Samavi

Mazraie

et al. 2021

Journal of Phytopathology

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This study aimed at identifying fungal pathogens causing pre‐ and postharvest fruit rots on local cultivars of mango (Mangifera indica L.) in the main mango‐growing regions of southern Iran. Mango fruits showing rot symptoms from commercial orchards were used for isolation of fungal species associated with preharvest fruit rots. Latent infections were assessed on intact healthy mango fruits which were surface‐disinfested and incubated in moist chambers at 25ºC. For evaluation of postharvest wound infections, intact healthy mango fruits were artificially wounded and incubated in moist chambers at 25ºC. In addition, fungal decays were assessed on intact healthy mango fruits stored at 13ºC for up to 4 weeks. Isolated fungi were identified based on morphological characteristics, as well as sequence data from the ribosomal internal transcribed spacer (ITS) region. In addition, the sequence data inferred from translation elongation factor 1‐alpha (tef1) gene were used for determination of Fusarium species and Alternaria and Colletotrichum isolates were defined genetically based on multi‐gene sequencing. Accordingly, eight fungal species, including Alternaria alternata, Neofussicoccum mediterraneum, Aureobasidium melanogenum, Colletotrichum gloeosporioides, Fusarium proliferatum, Xenoacremonium falcatus, F. verticillioides and Diaporthe phyllanthicola, were identified to associate with preharvest mango fruit rots. Fungi associated with latent infections, mostly stem‐end rots, included A. alternata, N. mediterraneum, C. gloeosporioides, Lasiodiplodia theobromae, F. proliferatum and A. melanogenum, and those associated with wound infections were A. alternata, N. mediterraneum, Penicillium spp. and Cladosporium spp. A. alternata was the only pathogen isolated from the fruits stored at low temperature. Pathogenicity of the selected isolates was demonstrated by fulfilling Koch's postulates.

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Nanotechnology Applied to the Management of Fungal Diseases in Tropical Crops

Pabon-Mora

Quevedo

Ortega‐Toro

2023

Green-Based Nanocomposite Materials and Applications

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High distribution rate of an emerging fungal pathogen on mango: A case study from southern Iran

Cited by 4 publications

References 22 publications

Virulence Traits and Population Genomics of the Black Yeast Aureobasidium melanogenum

Virulence Traits and Population Genomics of the Black Yeast Aureobasidium melanogenum

Fungal pathogens associated with pre‐ And postharvest fruit rots of mango in southern Iran

Nanotechnology Applied to the Management of Fungal Diseases in Tropical Crops

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