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Susan M Chambers - One of the best experts on this subject based on the ideXlab platform.
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genetic population structure of the ectomycorrhizal fungus Pisolithus microcarpus suggests high gene flow in south eastern australia
Mycorrhiza, 2011Co-Authors: Catherine J. Hitchcock, Susan M Chambers, John W.g. CairneyAbstract:Pisolithus are ectomycorrhizal fungi that associate with roots of numerous plant species in natural and plantation forests worldwide. Despite the fact that Pisolithus spp. are present in plantation forests in many countries, knowledge of the genetic population structure of Pisolithus spp. remains limited. In this study, we have tested the hypothesis that a propensity for long-distance spore dispersal in Pisolithus microcarpus, along with the widespread distribution of potential eucalypt and acacia plant hosts in south-eastern Australia facilitates gene flow that limits population differentiation. Five polymorphic simple sequence repeat markers were used to investigate the population structure of P. microcarpus. Isolates were grouped according to geographical origin and isolate genotypes were analysed among the geographical populations. Pairwise FST estimates indicated limited genetic differentiation among the geographical populations. Analysis of molecular variance revealed that most of the genetic variation present was within geographical populations, with only 1.3% of the genetic variation among P. microcarpus geographical populations. This was particularly pronounced for four geographical populations within a ca 7,000 km2 area New South Wales, which were each separated by <100 km and appeared to be genetically homogeneous. The lack of population structure is suggested to be due to a high degree of gene flow, via basidiospores, between the New South Wales geographical populations.
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Genetic population structure of the ectomycorrhizal fungus Pisolithus microcarpus suggests high gene flow in south-eastern Australia
Mycorrhiza, 2010Co-Authors: Catherine J. Hitchcock, Susan M Chambers, John W.g. CairneyAbstract:Pisolithus are ectomycorrhizal fungi that associate with roots of numerous plant species in natural and plantation forests worldwide. Despite the fact that Pisolithus spp. are present in plantation forests in many countries, knowledge of the genetic population structure of Pisolithus spp. remains limited. In this study, we have tested the hypothesis that a propensity for long-distance spore dispersal in Pisolithus microcarpus, along with the widespread distribution of potential eucalypt and acacia plant hosts in south-eastern Australia facilitates gene flow that limits population differentiation. Five polymorphic simple sequence repeat markers were used to investigate the population structure of P. microcarpus. Isolates were grouped according to geographical origin and isolate genotypes were analysed among the geographical populations. Pairwise FST estimates indicated limited genetic differentiation among the geographical populations. Analysis of molecular variance revealed that most of the genetic variation present was within geographical populations, with only 1.3% of the genetic variation among P. microcarpus geographical populations. This was particularly pronounced for four geographical populations within a ca 7,000 km2 area New South Wales, which were each separated by
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Development of polymorphic simple sequence repeat markers for Pisolithus microcarpus
Molecular Ecology Notes, 2006Co-Authors: Catherine J. Hitchcock, Susan M Chambers, John W.g. CairneyAbstract:Six polymorphic simple sequence repeat (SSR) markers were developed for the ectomycorrhizal fungus Pisolithus microcarpus. A polymerase chain reaction (PCR)-based technique was used in which random amplified polymorphic DNA (RAPD) fingerprints were probed with labelled SSR oligonucleotides by southern hybridization. The number of alleles per locus ranged from two to nine with expected heterozygosity values from 0.33 to 0.76. These loci will be potentially useful for genetic structure and gene flow studies of P. microcarpus populations. Cross-species amplification with Pisolithus albus isolates at all loci was also observed.
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development of markers for simple sequence repeat rich regions that discriminate between Pisolithus albus and p microcarpus
Fungal Biology, 2003Co-Authors: Catherine J. Hitchcock, Susan M Chambers, Ian C Anderson, J W G CairneyAbstract:Inter-simple sequence repeat PCR (ISSR-PCR) was used to develop markers for simple sequence repeat-rich (SSR) regions for investigation of genetic relatedness of Pisolithus isolates collected from eastern mainland Australia. Primers were designed to amplify ten SSR-rich regions and these were used to screen 14 Pisolithus isolates. Two amplified loci showed size polymorphisms among the isolates (regarded as polymorphic), two were monomorphic for all isolates, while the remainder amplified alleles for only some isolates. UPGMA analysis of the alleles for each isolate at each locus together with ITS-RFLP analysis, separated the isolates into two groups. These two groups appear to correspond to isolates that ITS sequence data have previously separated as P. albus and P. microcarpus .
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its rflp and its sequence diversity in Pisolithus from central and eastern australian sclerophyll forests
Fungal Biology, 2001Co-Authors: Ian C Anderson, Susan M Chambers, J W G CairneyAbstract:Fifty-three isolates of Pisolithus were obtained from various locations in central and eastern Australia. These, along with two isolates from south-east Asia and one from USA, were compared using ITS–RFLP and ITS sequencing analyses. Results of the RFLP analysis initially grouped the isolates into eight RFLP types. ITS sequences were obtained for at least one representative isolate from each RFLP type and compared by a neighbour-joining analysis with Pisolithus ITS sequences available in databases. The majority of isolates clustered into four groups within two major clades, each clade comprising isolates of similar basidiospore characteristics. Most Australian isolates corresponded with recent provisional descriptions of P. albus or P. marmoratus. One isolate (LJ30) had low sequence identity (61.6-78%) to the other isolates and probably represents a separate undescribed Australian species. Significant intraspecific variation was observed in ITS–RFLP profiles for the putative P. albus isolates, suggesting that the sole use of RFLP analysis in diversity assessment may overestimate Pisolithus species richness.
Ian C Anderson - One of the best experts on this subject based on the ideXlab platform.
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the effect of elevated carbon dioxide on the interaction between eucalyptus grandis and diverse isolates of Pisolithus sp is associated with a complex shift in the root transcriptome
New Phytologist, 2015Co-Authors: Jonathan M Plett, Francis Martin, Annegret Kohler, Amit N Khachane, Kerry L Keniry, Krista L Plett, Ian C AndersonAbstract:Summary � Using the newly available genome for Eucalyptus grandis, we sought to determine the genome-wide traits that enable this host to form mutualistic interactions with ectomycorrhizal (ECM) Pisolithus sp. and to determine how future predicted concentrations of atmospheric carbon dioxide (CO2) will affect this relationship. � We analyzed the physiological and transcriptomic responses of E. grandis during colonization by different Pisolithus sp. isolates under conditions of ambient (400 ppm) and elevated (650 ppm) CO2 to tease out the gene expression profiles associated with colonization status. � We demonstrate that E. grandis varies in its susceptibility to colonization by different Pisolithus isolates in a manner that is not predictable by geographic origin or the internal transcribed spacer (ITS)-based phylogeny of the fungal partner. Elevated concentrations of CO2 alter the receptivity of E. grandis to Pisolithus, a change that is correlated to a dramatic shift in the transcriptomic profile of the root. � These data provide a starting point for understanding how future environmental change may alter the signaling between plants and their ECM partners and is a step towards determining the mechanism behind previously observed shifts in Eucalypt-associated fungal communities exposed to elevated concentrations of atmospheric CO2.
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development of markers for simple sequence repeat rich regions that discriminate between Pisolithus albus and p microcarpus
Fungal Biology, 2003Co-Authors: Catherine J. Hitchcock, Susan M Chambers, Ian C Anderson, J W G CairneyAbstract:Inter-simple sequence repeat PCR (ISSR-PCR) was used to develop markers for simple sequence repeat-rich (SSR) regions for investigation of genetic relatedness of Pisolithus isolates collected from eastern mainland Australia. Primers were designed to amplify ten SSR-rich regions and these were used to screen 14 Pisolithus isolates. Two amplified loci showed size polymorphisms among the isolates (regarded as polymorphic), two were monomorphic for all isolates, while the remainder amplified alleles for only some isolates. UPGMA analysis of the alleles for each isolate at each locus together with ITS-RFLP analysis, separated the isolates into two groups. These two groups appear to correspond to isolates that ITS sequence data have previously separated as P. albus and P. microcarpus .
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its rflp and its sequence diversity in Pisolithus from central and eastern australian sclerophyll forests
Fungal Biology, 2001Co-Authors: Ian C Anderson, Susan M Chambers, J W G CairneyAbstract:Fifty-three isolates of Pisolithus were obtained from various locations in central and eastern Australia. These, along with two isolates from south-east Asia and one from USA, were compared using ITS–RFLP and ITS sequencing analyses. Results of the RFLP analysis initially grouped the isolates into eight RFLP types. ITS sequences were obtained for at least one representative isolate from each RFLP type and compared by a neighbour-joining analysis with Pisolithus ITS sequences available in databases. The majority of isolates clustered into four groups within two major clades, each clade comprising isolates of similar basidiospore characteristics. Most Australian isolates corresponded with recent provisional descriptions of P. albus or P. marmoratus. One isolate (LJ30) had low sequence identity (61.6-78%) to the other isolates and probably represents a separate undescribed Australian species. Significant intraspecific variation was observed in ITS–RFLP profiles for the putative P. albus isolates, suggesting that the sole use of RFLP analysis in diversity assessment may overestimate Pisolithus species richness.
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ITS–RFLP and ITS sequence diversity in Pisolithus from central and eastern Australian sclerophyll forests
Fungal Biology, 2001Co-Authors: Ian C Anderson, Susan M Chambers, John W.g. CairneyAbstract:Fifty-three isolates of Pisolithus were obtained from various locations in central and eastern Australia. These, along with two isolates from south-east Asia and one from USA, were compared using ITS–RFLP and ITS sequencing analyses. Results of the RFLP analysis initially grouped the isolates into eight RFLP types. ITS sequences were obtained for at least one representative isolate from each RFLP type and compared by a neighbour-joining analysis with Pisolithus ITS sequences available in databases. The majority of isolates clustered into four groups within two major clades, each clade comprising isolates of similar basidiospore characteristics. Most Australian isolates corresponded with recent provisional descriptions of P. albus or P. marmoratus. One isolate (LJ30) had low sequence identity (61.6-78%) to the other isolates and probably represents a separate undescribed Australian species. Significant intraspecific variation was observed in ITS–RFLP profiles for the putative P. albus isolates, suggesting that the sole use of RFLP analysis in diversity assessment may overestimate Pisolithus species richness.
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distribution and persistence of australian Pisolithus species genets at native sclerophyll forest field sites
Fungal Biology, 2001Co-Authors: Ian C Anderson, Susan M Chambers, John CairneyAbstract:Basidiomes of a Pisolithus species were collected from a ca 2500 m 2 Australian sclerophyll forest site during 1997 and 1999 and of a second Pisolithus species from a further ca 150 m 2 site during 1999. Inter-simple sequence repeat (ISSR) PCR was conducted on DNA extracted from each basidiome using the primers 5’BDB(ACA) 5 , 5’DDB(CCA) 5 and 5’DHB(CGA) 5 . Thirty-seven genotypes of Pisolithus species I were detected at the North Wilberforce site, with eight genotypes present during both 1997 and 1999. All other genotypes were observed during only one year. Mapping genotype distribution according to location of basidiome collection at the site suggested that most genotypes were present as small ( 2 ) below-ground mycelial genets, however several larger (> 4.0 m 2 ) genets (including one ca 120 m 2 genet) were also present. All Pisolithus species II basidiomes at the North Turramurra site were of a common genotype, suggesting the presence of a single large ( ca 69 m 2 ) below-ground mycelial genet of this taxon at the site. Both Pisolithus species thus appear to produce large long-lived soil-borne mycelia, but establishment of large genets may be restricted under some circumstances.
John W.g. Cairney - One of the best experts on this subject based on the ideXlab platform.
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genetic population structure of the ectomycorrhizal fungus Pisolithus microcarpus suggests high gene flow in south eastern australia
Mycorrhiza, 2011Co-Authors: Catherine J. Hitchcock, Susan M Chambers, John W.g. CairneyAbstract:Pisolithus are ectomycorrhizal fungi that associate with roots of numerous plant species in natural and plantation forests worldwide. Despite the fact that Pisolithus spp. are present in plantation forests in many countries, knowledge of the genetic population structure of Pisolithus spp. remains limited. In this study, we have tested the hypothesis that a propensity for long-distance spore dispersal in Pisolithus microcarpus, along with the widespread distribution of potential eucalypt and acacia plant hosts in south-eastern Australia facilitates gene flow that limits population differentiation. Five polymorphic simple sequence repeat markers were used to investigate the population structure of P. microcarpus. Isolates were grouped according to geographical origin and isolate genotypes were analysed among the geographical populations. Pairwise FST estimates indicated limited genetic differentiation among the geographical populations. Analysis of molecular variance revealed that most of the genetic variation present was within geographical populations, with only 1.3% of the genetic variation among P. microcarpus geographical populations. This was particularly pronounced for four geographical populations within a ca 7,000 km2 area New South Wales, which were each separated by <100 km and appeared to be genetically homogeneous. The lack of population structure is suggested to be due to a high degree of gene flow, via basidiospores, between the New South Wales geographical populations.
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Genetic population structure of the ectomycorrhizal fungus Pisolithus microcarpus suggests high gene flow in south-eastern Australia
Mycorrhiza, 2010Co-Authors: Catherine J. Hitchcock, Susan M Chambers, John W.g. CairneyAbstract:Pisolithus are ectomycorrhizal fungi that associate with roots of numerous plant species in natural and plantation forests worldwide. Despite the fact that Pisolithus spp. are present in plantation forests in many countries, knowledge of the genetic population structure of Pisolithus spp. remains limited. In this study, we have tested the hypothesis that a propensity for long-distance spore dispersal in Pisolithus microcarpus, along with the widespread distribution of potential eucalypt and acacia plant hosts in south-eastern Australia facilitates gene flow that limits population differentiation. Five polymorphic simple sequence repeat markers were used to investigate the population structure of P. microcarpus. Isolates were grouped according to geographical origin and isolate genotypes were analysed among the geographical populations. Pairwise FST estimates indicated limited genetic differentiation among the geographical populations. Analysis of molecular variance revealed that most of the genetic variation present was within geographical populations, with only 1.3% of the genetic variation among P. microcarpus geographical populations. This was particularly pronounced for four geographical populations within a ca 7,000 km2 area New South Wales, which were each separated by
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Development of polymorphic simple sequence repeat markers for Pisolithus microcarpus
Molecular Ecology Notes, 2006Co-Authors: Catherine J. Hitchcock, Susan M Chambers, John W.g. CairneyAbstract:Six polymorphic simple sequence repeat (SSR) markers were developed for the ectomycorrhizal fungus Pisolithus microcarpus. A polymerase chain reaction (PCR)-based technique was used in which random amplified polymorphic DNA (RAPD) fingerprints were probed with labelled SSR oligonucleotides by southern hybridization. The number of alleles per locus ranged from two to nine with expected heterozygosity values from 0.33 to 0.76. These loci will be potentially useful for genetic structure and gene flow studies of P. microcarpus populations. Cross-species amplification with Pisolithus albus isolates at all loci was also observed.
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ITS–RFLP and ITS sequence diversity in Pisolithus from central and eastern Australian sclerophyll forests
Fungal Biology, 2001Co-Authors: Ian C Anderson, Susan M Chambers, John W.g. CairneyAbstract:Fifty-three isolates of Pisolithus were obtained from various locations in central and eastern Australia. These, along with two isolates from south-east Asia and one from USA, were compared using ITS–RFLP and ITS sequencing analyses. Results of the RFLP analysis initially grouped the isolates into eight RFLP types. ITS sequences were obtained for at least one representative isolate from each RFLP type and compared by a neighbour-joining analysis with Pisolithus ITS sequences available in databases. The majority of isolates clustered into four groups within two major clades, each clade comprising isolates of similar basidiospore characteristics. Most Australian isolates corresponded with recent provisional descriptions of P. albus or P. marmoratus. One isolate (LJ30) had low sequence identity (61.6-78%) to the other isolates and probably represents a separate undescribed Australian species. Significant intraspecific variation was observed in ITS–RFLP profiles for the putative P. albus isolates, suggesting that the sole use of RFLP analysis in diversity assessment may overestimate Pisolithus species richness.
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Characteristics of glutamine uptake by two Australian Pisolithus species
Fungal Biology, 2001Co-Authors: Ian C Anderson, Susan M Chambers, John W.g. CairneyAbstract:Uptake of 14 C-labelled glutamine by seven Australian Pisolithus isolates (representing two species) was investigated over the concentration range 0.5 mmol m −3 -20 mol m −3 . Total uptake did not conform to simple Michaelis-Menten kinetics over this concentration range. At concentrations above 0.5 mol m −3 much of the glutamine uptake appeared to be diffusion-like. At concentrations below 0.5 mol m −3 , subtraction of uptake in the presence of 2,4-dinitrophenol from total uptake revealed an active component that followed Michaelis-Menten kinetics. Estimated K m and V max values for active glutamine uptake by all isolates were in the ranges 4.0 - 210 mmol m −3 and 80 - 637 nmol g −1 d wt. min −1 respectively. pH optima for glutamine uptake were in the ranges 4.5-6.0, 3.7-5.0 or 3.0-4.5, depending on the isolate. While intraspecific variation was observed, there were no apparent relationships between the two Pisolithus species and either kinetic parameters for glutamine uptake or the pH optimum for the process.
Catherine J. Hitchcock - One of the best experts on this subject based on the ideXlab platform.
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genetic population structure of the ectomycorrhizal fungus Pisolithus microcarpus suggests high gene flow in south eastern australia
Mycorrhiza, 2011Co-Authors: Catherine J. Hitchcock, Susan M Chambers, John W.g. CairneyAbstract:Pisolithus are ectomycorrhizal fungi that associate with roots of numerous plant species in natural and plantation forests worldwide. Despite the fact that Pisolithus spp. are present in plantation forests in many countries, knowledge of the genetic population structure of Pisolithus spp. remains limited. In this study, we have tested the hypothesis that a propensity for long-distance spore dispersal in Pisolithus microcarpus, along with the widespread distribution of potential eucalypt and acacia plant hosts in south-eastern Australia facilitates gene flow that limits population differentiation. Five polymorphic simple sequence repeat markers were used to investigate the population structure of P. microcarpus. Isolates were grouped according to geographical origin and isolate genotypes were analysed among the geographical populations. Pairwise FST estimates indicated limited genetic differentiation among the geographical populations. Analysis of molecular variance revealed that most of the genetic variation present was within geographical populations, with only 1.3% of the genetic variation among P. microcarpus geographical populations. This was particularly pronounced for four geographical populations within a ca 7,000 km2 area New South Wales, which were each separated by <100 km and appeared to be genetically homogeneous. The lack of population structure is suggested to be due to a high degree of gene flow, via basidiospores, between the New South Wales geographical populations.
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Genetic population structure of the ectomycorrhizal fungus Pisolithus microcarpus suggests high gene flow in south-eastern Australia
Mycorrhiza, 2010Co-Authors: Catherine J. Hitchcock, Susan M Chambers, John W.g. CairneyAbstract:Pisolithus are ectomycorrhizal fungi that associate with roots of numerous plant species in natural and plantation forests worldwide. Despite the fact that Pisolithus spp. are present in plantation forests in many countries, knowledge of the genetic population structure of Pisolithus spp. remains limited. In this study, we have tested the hypothesis that a propensity for long-distance spore dispersal in Pisolithus microcarpus, along with the widespread distribution of potential eucalypt and acacia plant hosts in south-eastern Australia facilitates gene flow that limits population differentiation. Five polymorphic simple sequence repeat markers were used to investigate the population structure of P. microcarpus. Isolates were grouped according to geographical origin and isolate genotypes were analysed among the geographical populations. Pairwise FST estimates indicated limited genetic differentiation among the geographical populations. Analysis of molecular variance revealed that most of the genetic variation present was within geographical populations, with only 1.3% of the genetic variation among P. microcarpus geographical populations. This was particularly pronounced for four geographical populations within a ca 7,000 km2 area New South Wales, which were each separated by
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Development of polymorphic simple sequence repeat markers for Pisolithus microcarpus
Molecular Ecology Notes, 2006Co-Authors: Catherine J. Hitchcock, Susan M Chambers, John W.g. CairneyAbstract:Six polymorphic simple sequence repeat (SSR) markers were developed for the ectomycorrhizal fungus Pisolithus microcarpus. A polymerase chain reaction (PCR)-based technique was used in which random amplified polymorphic DNA (RAPD) fingerprints were probed with labelled SSR oligonucleotides by southern hybridization. The number of alleles per locus ranged from two to nine with expected heterozygosity values from 0.33 to 0.76. These loci will be potentially useful for genetic structure and gene flow studies of P. microcarpus populations. Cross-species amplification with Pisolithus albus isolates at all loci was also observed.
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development of markers for simple sequence repeat rich regions that discriminate between Pisolithus albus and p microcarpus
Fungal Biology, 2003Co-Authors: Catherine J. Hitchcock, Susan M Chambers, Ian C Anderson, J W G CairneyAbstract:Inter-simple sequence repeat PCR (ISSR-PCR) was used to develop markers for simple sequence repeat-rich (SSR) regions for investigation of genetic relatedness of Pisolithus isolates collected from eastern mainland Australia. Primers were designed to amplify ten SSR-rich regions and these were used to screen 14 Pisolithus isolates. Two amplified loci showed size polymorphisms among the isolates (regarded as polymorphic), two were monomorphic for all isolates, while the remainder amplified alleles for only some isolates. UPGMA analysis of the alleles for each isolate at each locus together with ITS-RFLP analysis, separated the isolates into two groups. These two groups appear to correspond to isolates that ITS sequence data have previously separated as P. albus and P. microcarpus .
J W G Cairney - One of the best experts on this subject based on the ideXlab platform.
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development of markers for simple sequence repeat rich regions that discriminate between Pisolithus albus and p microcarpus
Fungal Biology, 2003Co-Authors: Catherine J. Hitchcock, Susan M Chambers, Ian C Anderson, J W G CairneyAbstract:Inter-simple sequence repeat PCR (ISSR-PCR) was used to develop markers for simple sequence repeat-rich (SSR) regions for investigation of genetic relatedness of Pisolithus isolates collected from eastern mainland Australia. Primers were designed to amplify ten SSR-rich regions and these were used to screen 14 Pisolithus isolates. Two amplified loci showed size polymorphisms among the isolates (regarded as polymorphic), two were monomorphic for all isolates, while the remainder amplified alleles for only some isolates. UPGMA analysis of the alleles for each isolate at each locus together with ITS-RFLP analysis, separated the isolates into two groups. These two groups appear to correspond to isolates that ITS sequence data have previously separated as P. albus and P. microcarpus .
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its rflp and its sequence diversity in Pisolithus from central and eastern australian sclerophyll forests
Fungal Biology, 2001Co-Authors: Ian C Anderson, Susan M Chambers, J W G CairneyAbstract:Fifty-three isolates of Pisolithus were obtained from various locations in central and eastern Australia. These, along with two isolates from south-east Asia and one from USA, were compared using ITS–RFLP and ITS sequencing analyses. Results of the RFLP analysis initially grouped the isolates into eight RFLP types. ITS sequences were obtained for at least one representative isolate from each RFLP type and compared by a neighbour-joining analysis with Pisolithus ITS sequences available in databases. The majority of isolates clustered into four groups within two major clades, each clade comprising isolates of similar basidiospore characteristics. Most Australian isolates corresponded with recent provisional descriptions of P. albus or P. marmoratus. One isolate (LJ30) had low sequence identity (61.6-78%) to the other isolates and probably represents a separate undescribed Australian species. Significant intraspecific variation was observed in ITS–RFLP profiles for the putative P. albus isolates, suggesting that the sole use of RFLP analysis in diversity assessment may overestimate Pisolithus species richness.
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molecular determination of genetic variation in Pisolithus isolates from a defined region in new south wales australia
New Phytologist, 1998Co-Authors: Ian C Anderson, Susan M Chambers, J W G CairneyAbstract:summary Sixty-two isolates of Pisolithus were obtained from a carpophore population collected from a 90-km# area of New South Wales, Australia. Random amplified polymorphic DNA (RAPD) analysis was used initially to screen isolates for variation, and restriction fragment length polymorphism (RFLP) analysis of the internal transcribed spacer (ITS) region and ITS sequence analysis were subsequently performed on selected isolates. ITS‐RFLP and ITS sequence analysis indicated that two isolates (LJ07 and WM01) from dierent sites were considerably dierent from all other isolates, a strict consensus tree generated by bootstrap analysis of sequence data strongly suggesting that isolates LJ07 and WM01 represent a separate Pisolithus species. Although the general morphology of carpophores and basidiospores of the majority of collected isolates was consistent with previous descriptions of P. tinctorius (Pers.) Coker and Couch, basidiospore characteristics suggest that isolates LJO7 and WMO1 might represent a Pisolithus species distinct from P. tinctorius and the previously described Australian species, P. microcarpus (Cooke & Massee) G. Cunn.
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Release of a reducing substance by the ectomycorrhizal fungi Pisolithus tinctorius and Paxillus involutus
Plant and Soil, 1991Co-Authors: J W G Cairney, Anne E. AshfordAbstract:Culture solutions of the ectomycorrhizal fungi Pisolithus tinctorius and Paxillus involutus are shown to reduce a high valency oxide of manganese at a range of pH values from 3.0 to 13.0. Manganese reduction in unmoculated culture media was confined to pH values below 5.0 and above 10.0. The results are consistent with the release of a reducing substance from the fungal mycelium.
