Linear fusigen as the major hydroxamate siderophore of the ectomycorrhizal Basidiomycota Laccaria laccata and Laccaria bicolor

Haselwandter, K.; Häninger, Gerlinde; Ganzera, Markus; Haas, Hubertus; Nicholson, Graeme; Winkelmann, G.

doi:10.1007/s10534-013-9673-8

Cited by 28 publications

(5 citation statements)

References 41 publications

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“…It is therefore very likely that R. microporus produces hydroxamate-derived siderophores, as it has already been shown for other basidiomycetes such as Laccaria sp. and Ceriporiopsis subvermispora B 59,60 .…”

Section: Resultsmentioning

confidence: 99%

Genome sequencing of Rigidoporus microporus provides insights on genes important for wood decay, latex tolerance and interspecific fungal interactions

Oghenekaro

Kovalchuk

Raffaello

et al. 2020

Sci Rep

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fungal plant pathogens remain a serious threat to the sustainable agriculture and forestry, despite the extensive efforts undertaken to control their spread. White root rot disease is threatening rubber tree (Hevea brasiliensis) plantations throughout South and Southeast Asia and Western Africa, causing tree mortality and severe yield losses. Here, we report the complete genome sequence of the basidiomycete fungus Rigidoporus microporus, a causative agent of the disease. Our phylogenetic analysis confirmed the position of R. microporus among the members of Hymenochaetales, an understudied group of basidiomycetes. Our analysis further identified pathogen's genes with a predicted role in the decay of plant cell wall polymers, in the utilization of latex components and in interspecific interactions between the pathogen and other fungi. We also detected putative horizontal gene transfer events in the genome of R. microporus. The reported first genome sequence of a tropical rubber tree pathogen R. microporus should contribute to the better understanding of how the fungus is able to facilitate wood decay and nutrient cycling as well as tolerate latex and utilize resinous extractives.The white rot fungus known as Rigidoporus microporus (Sw.) Overeem (Basidiomycota, Agaricomycotina) is the most economically important pathogen of the tropical tree Hevea brasiliensis (Willd. ex A. Juss.) Müll.Arg., also known as Para rubber. Para rubber is principally valued for its latex content; the latex or natural rubber is a very significant industrial commodity used in a variety of industries from car manufacturing to healthcare. The market value of global annual production of natural rubber is over US$ 50 billion. Elastomers derived from natural rubber are indispensable in space, water, and ship technologies 1 . A major part of the plantation forestry in Africa and Asia is the growing of Para rubber.Rigidoporus microporus is therefore a fungal species of significant economic importance. As a necrotrophic pathogen, it has an extensive host range and affects many tropical and subtropical trees, food and cash crops 2,3 . However, it is best known as a causative agent of the white root rot disease of the rubber tree and for the devastating impact it has on commercial rubber tree plantations ( Fig. 1) 4 . The fungus produces rhizomorphs (thread-like mycelial aggregation of fungal hypha), which can grow several meters in the soil before they reach and attack roots of a suitable host, and it continues to rot wood long after the tree has fallen 5 . Population genetic studies suggested that a host jump and the lack of coevolution between the host and the pathogen might be the possible reasons for the aggressive behavior of the pathogen on rubber trees. This is further supported by the fact that the disease is devastating in Asia and West Africa, but not a serious problem in South America, the centre of origin of the rubber tree host 3 . Presence of high density of fungal rhizomorphs of R. microporus in the soil indicates a capacity to switch...

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Section: Resultsmentioning

confidence: 99%

Genome sequencing of Rigidoporus microporus provides insights on genes important for wood decay, latex tolerance and interspecific fungal interactions

Oghenekaro

Kovalchuk

Raffaello

et al. 2020

Sci Rep

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“…Similarly, the genomes of Saccharomycotina and Mucoromycotina and some Basidiomycota lack genes coding for this enzyme, which is in agreement with the observed lack of siderophore production by these fungi ( Lesuisse and Labbe, 1989 ; Plattner and Diekmann, 1994 ). Interestingly, although the L. bicolor genome also lacks Sid1/SidA orthologous genes, production of a set of different hydroxamate siderophores by L. bicolor has been recently reported ( Haselwandter et al, 2013 ).…”

Section: Resultsmentioning

confidence: 99%

Genome-wide analysis of copper, iron and zinc transporters in the arbuscular mycorrhizal fungus Rhizophagus irregularis

et al. 2014

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Arbuscular mycorrhizal fungi (AMF), belonging to the Glomeromycota, are soil microorganisms that establish mutualistic symbioses with the majority of higher plants. The efficient uptake of low mobility mineral nutrients by the fungal symbiont and their further transfer to the plant is a major feature of this symbiosis. Besides improving plant mineral nutrition, AMF can alleviate heavy metal toxicity to their host plants and are able to tolerate high metal concentrations in the soil. Nevertheless, we are far from understanding the key molecular determinants of metal homeostasis in these organisms. To get some insights into these mechanisms, a genome-wide analysis of Cu, Fe and Zn transporters was undertaken, making use of the recently published whole genome of the AMF Rhizophagus irregularis. This in silico analysis allowed identification of 30 open reading frames in the R. irregularis genome, which potentially encode metal transporters. Phylogenetic comparisons with the genomes of a set of reference fungi showed an expansion of some metal transporter families. Analysis of the published transcriptomic profiles of R. irregularis revealed that a set of genes were up-regulated in mycorrhizal roots compared to germinated spores and extraradical mycelium, which suggests that metals are important for plant colonization.

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“…It is known that a wide range of soil fungal isolates have the ability to produce one or several types of hydroxamates (Haselwandter and Winkelmann, 2007;Haselwandter et al, 2013). In the present study, both P. glabrum and P. melinii produced coprogen with concentrations of 305 nM and 540 nM, respectively.…”

Section: Production Of Hydroxamates By Soil Microorganismsmentioning

confidence: 56%

“…Earlier studies that determined the siderophores by microbial assays were very specific but had low a sensitivity (e.g Buyer et al 1993), while recently HPLC-ESI-MS methods has been used intensively since it gives more accurate and highly sensitive results (Moberg et al, 2003;Haselwandter et al, 2013).…”

Section: Factors Influencing the Siderophore Production By The Isolatmentioning

confidence: 99%

Siderophore Production by Microorganisms Isolated From a Podzol Soil Profile

Ahmed

Holmström

2014

Geomicrobiology Journal

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Siderophore producing bacteria/actinobacteria and fungi were isolated from O-(organic), E-(eluvial), B-(upper illuvial), and C-(parent material) horizons of podzol soil. Siderophores were isolated and hydroxamate type siderophores were detected and quantitated by high-performance liquid chromatography coupled to electrospray ionization mass spectrometry. The molecular identification of siderophore producing isolates showed that there was a high diversity of fungal and bacterial/actinobacterial species throughout the soil profile. The isolated bacteria/actinobacteria showed different abilities in the production of ferrioxamines (E, B, G and D). Moreover, the isolated fungal species showed great variety in the production of ferrichromes, coprogens and fusarinines.

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Linear fusigen as the major hydroxamate siderophore of the ectomycorrhizal Basidiomycota Laccaria laccata and Laccaria bicolor

Cited by 28 publications

References 41 publications

Genome sequencing of Rigidoporus microporus provides insights on genes important for wood decay, latex tolerance and interspecific fungal interactions

Genome sequencing of Rigidoporus microporus provides insights on genes important for wood decay, latex tolerance and interspecific fungal interactions

Genome-wide analysis of copper, iron and zinc transporters in the arbuscular mycorrhizal fungus Rhizophagus irregularis

Siderophore Production by Microorganisms Isolated From a Podzol Soil Profile

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