Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

    Records 1 - 20 / 58

    • help
    • print

      Print search results

    • export

      Export search results

    Check title to add to marked list
    A two-locus DNA sequence database for typing plant and human pathogens within the Fusarium oxysporum species complex
    O'Donnell, K. ; Gueidan, C. ; Sink, S. ; Johnston, P.R. ; Crous, P.W. ; Glenn, A. ; Riley, R. ; Zitomer, N.C. ; Colyer, P. ; Waalwijk, C. ; Lee, T. van der; Moretti, A. ; Kang, S. ; Kim, H.S. ; Geiser, D.M. ; Juba, J.H. ; Baayen, R.P. ; Cromey, M.G. ; Bithel, S. ; Sutton, D.A. ; Skovgaard, K. ; Ploetz, R. ; Kistler, H.C. ; Elliot, M. ; Davis, M. ; Sarver, B.A.J. - \ 2009
    Fungal Genetics and Biology 46 (2009)12. - ISSN 1087-1845 - p. 936 - 948.
    vegetative compatibility groups - f-sp cubense - fragment-length-polymorphisms - intergenic spacer region - genetic diversity - ribosomal dna - fungus fusarium - discontinuous distribution - phylogenetic diversity - nectria-haematococca
    We constructed a two-locus database, comprising partial translation elongation factor (EF-1a) gene sequences and nearly full-length sequences of the nuclear ribosomal intergenic spacer region (IGS rDNA) for 850 isolates spanning the phylogenetic breadth of the Fusarium oxysporum species complex (FOSC). Of the 850 isolates typed, 101 EF-1a, 203 IGS rDNA, and 256 two-locus sequence types (STs) were differentiated. Analysis of the combined dataset suggests that two-thirds of the STs might be associated with a single host plant. This analysis also revealed that the 26 STs associated with human mycoses were genetically diverse, including several which appear to be nosocomial in origin. A congruence analysis, comparing partial EF-1a and IGS rDNA bootstrap consensus, identified a significant number of conflicting relationships dispersed throughout the bipartitions, suggesting that some of the IGS rDNA sequences may be non-orthologous. We also evaluated enniatin, fumonisin and moniliformin mycotoxin production in vitro within a phylogenetic framework.
    Enquête roest in asperge : organische stof gehalte van invloed op roest
    Evenhuis, A. ; Wilms, J.A.M. - \ 2006
    Lelystad : Praktijkonderzoek Plant & Omgeving B.V. - 20
    asparagus - roestziekten - schimmelziekten - stengelgroenten - plantenziektebestrijding - veldgewassen - nederland - asparagus - rust diseases - fungal diseases - stem vegetables - plant disease control - field crops - netherlands
    Roest op asperge is een kwaliteitsprobleem. In 2004 had een aantal telers opnieuw bovenmatig last van roest op de asperges. Toch waren er grote verschillen in het optreden van fysiologische roest bij de verschillende telers en zelfs over verschillende percelen bij dezelfde telers. Bij oppervlakkige roest kan er gevlimd worden, hetgeen extra inzet van arbeid betekent. Bij zwaardere vormen van roest kunnen de asperges niet meer in klasse 1 worden afgezet. Indien 10% van de asperge in klasse verlaagd wordt betekend dat voor de teler een verliespost van ongeveer 2000 € per hectare bij een opbrengst niveau van 10 ton asperges. Fysiologische roest doet zich vaak voor gedurende een koud en nat voorjaar en bij het begin van de oogst. Fysiologische roest wordt vaak in verband gebracht met de aanwezigheid van Fusarium (Poll, 1998). Fusarium wordt ook geassocieerd met herinplant ziekte bij asperge (Elmer, 1992; Blok & Bollen, 1995; Baayen et al., 2000). Naast F. oxysporum f.sp. asparagi en F. proliferatum bleek ook F. redolens een pathogeen van asperge betrokken bij herinplantziekte en aspergeroest (Baayen et al., 2000). Uit onderzoek zijn aanwijzingen verkregen dat toepassing van zout fysiologische roest op asperge vermindert, maar een harde conclusie kon hieruit niet getrokken worden. Dit zou geen direct effect van het zout zijn op Fusarium, maar zou te maken hebben met de invloed op beschikbaarheid van voedingselementen in de grond (Poll, 1999). In Amerikaans onderzoek werd wisselend positieve effecten gevonden van zout op de mate van aantasting van aspergewortels door Fusarium (Elmer, 1992; Elmer, 2004; Reid et al., 2001). Het doel van het project is om: − Inzicht te krijgen in de factoren die het optreden van roest in asperge beïnvloeden om de oorzaak te kunnen achterhalen. − Een voorstel te ontwikkelen om het verkregen inzicht te toetsen in de praktijk indien bruikbare aanwijzingen over de oorzaak worden geïdentificeerd. Het project richt zich op de identificatie van het probleem en nog niet op het ontwikkelen van beheersmaatregelen. Echter, indien duidelijkheid wordt verkregen over de oorzaken van het verschijnsel, kan wellicht een aanduiding worden verkregen over een effectieve beheersing van het probleem.
    Development of PCR-based detection methods for the quarantine phytopathogen Synchytrium endobioticum, causal agent of wart disease
    Boogert, P.H.J.F. van den; Gent-Pelzer, M.P.E. van; Bonants, P.J.M. ; Boer, S.H. de; Wander, J.G.N. ; Lévesque, C.A. ; Leeuwen, G.C.M. van; Baayen, R.P. - \ 2005
    European Journal of Plant Pathology 113 (2005)1. - ISSN 0929-1873 - p. 47 - 57.
    real-time pcr - spongospora-subterranea - resting sporangia - soil - tubers - quantification - primers - solani - dna
    Abstract PCR-based methods were developed for the detection and quantification of the potato pathogen Synchytrium endobioticum in soil extracts and in planta. PCR primers, based on the internal transcribed spacer region of the multi-copy gene rDNA were tested for specificity, sensitivity and reproducibility in conventional and real-time PCR assays. Soil extraction procedures compared included the Hendrickx centrifugation (HC) procedure, nested wet sieving (NWS) and a method used by the Plant Protection Service (PPS). The primers amplified a 472 bp product from S. endobioticum DNA, but did not amplify DNA from other potato pathogens, other plant pathogens, and related species. Standard cell disruption and DNA extraction and purification methods were optimized for amplification of S. endobioticum DNA from resting sporangia. DNA was successfully amplified from a single sporangium and equivalent DNA preparations from soil extracts. Low levels of target DNA in water did not amplify, possibly due to DNA loss during final purification steps. A real-time PCR assay, developed for soil-based extracts using primers and probe based on the rDNA gene sequences, involved co-amplification of target DNA along with an internal DNA fragment. Both conventional and real-time PCR methods performed well with HC- and NWS-extracts having a threshold sensitivity of 10 sporangia per PCR assay. Of the three soil extraction methods, only with the HC method could 100 g soil samples be efficiently processed in one single PCR assay. Such a high capacity assay could be useful for routine soil analysis in respect to disease risk assessments and to secure de-scheduling according to EPPO guidelines
    Occurrence of paracrystalloids and their particles in resistant and susceptible carnation plants infected with Fusarium oxysporum f.sp dianthi race 2
    Ouellette, G.B. ; Rioux, D. ; Simard, M. ; Baayen, R.P. - \ 2004
    Phytoprotection 85 (2004)3. - ISSN 0031-9511 - p. 139 - 151.
    f-sp dianthi - ultrastructural-changes - meloidogyne-javanica - olpidium-brassicae - fine-structure - giant-cells - virus - tobacco - caryophyllus - cultivars
    Uncommon, opaque particles (of approximately 20-22 nm, referred to as OP), aggregating into paracrystalloids occurred only next to colonized cells in carnation plants of either a susceptible or resistant cultivar (cv.) infected with Fusarium oxysporum f.sp. dianthi. In the susceptible plant, those structures occurred in vessel lumina and host walls, apparently associated with their alterations, but not in parenchyma cells, a situation which was the exact opposite of that observed in resistant plants. In comparison with apparently similar structures reported in other systems, paracrystalloids and their OPs did not seem to have exact counterparts in plants infected with viruses or fungi, although similar paracrystalloids were observed in nematode-infected plants. The OPs were associated in both cvs. with fine opaque matter, often displaying fine filamentous structures, and were in addition connected to fungal cells in the susceptible cv. Similar structures also extended through host walls into adjoining cells; these relations with parenchyma cells in resistant plants were interpreted as if the particles therein were akin to, if not exactly of the same nature as those in susceptible plants. As the opaque matter, the filamentous structures and the OPs were interrelated and associated with pathogen cells, it seemed warranted to assume that the OPs were issued from the pathogen.
    Peculiar ultrastructural characteristics of fungal cells and of other elements apposed to and in vessel walls in plants of a susceptible carnation cultivar, infected with Fusarium oxysporum f.sp dianthi race 2
    Ouellette, G.B. ; Baayen, R.P. ; Rioux, D. ; Simard, M. - \ 2004
    Phytoprotection 85 (2004)3. - ISSN 0031-9511 - p. 121 - 138.
    f-sp dianthi - soft rot fungi - verticillium-albo-atrum - attempted localization - extracellular sheath - ceratocystis-ulmi - wilt pathogens - resistant - wood - colonization
    Uncommon, opaque particles (of approximately 20-22 nm, referred to as OP), aggregating into paracrystalloids occurred only next to colonized cells in carnation plants of either a susceptible or resistant cultivar (cv.) infected with Fusarium oxysporum f.sp. dianthi. In the susceptible plant, those structures occurred in vessel lumina and host walls, apparently associated with their alterations, but not in parenchyma cells, a situation which was the exact opposite of that observed in resistant plants. In comparison with apparently similar structures reported in other systems, paracrystalloids and their OPs did not seem to have exact counterparts in plants infected with viruses or fungi, although similar paracrystalloids were observed in nematode-infected plants. The OPs were associated in both cvs. with fine opaque matter, often displaying fine filamentous structures, and were in addition connected to fungal cells in the susceptible cv. Similar structures also extended through host walls into adjoining cells; these relations with parenchyma cells in resistant plants were interpreted as if the particles therein were akin to, if not exactly of the same nature as those in susceptible plants. As the opaque matter, the filamentous structures and the OPs were interrelated and associated with pathogen cells, it seemed warranted to assume that the OPs were issued from the pathogen.
    The name Fusarium moniliforme should no longer be used - Differential use of Termitomyces by termites
    Seifert, K.A. ; Aoki, T. ; Baayen, R.P. ; Brayford, D. ; Burgess, L.W. ; Chulze, S. ; Gams, W. ; Geiser, D. ; Gruyter, J. de; Leslie, J.F. ; Logrieco, A. ; Marasas, W.F.O. ; Nirenberg, H.I. ; O'Donnell, K. ; Rheeder, J. ; Samuels, G.J. ; Summerell, B.A. ; Thrane, U. ; Waalwijk, C. - \ 2003
    Mycological Research 107 (2003)6. - ISSN 0953-7562 - p. 643 - 644.
    gibberella-fujikuroi
    Development and validation of a fast PCR-based detection method for pathogenic isolates of the citrus black spot fungus, Guignardia citricarpa
    Bonants, P.J.M. ; Carroll, G.C. ; Weerdt, M. de; Brouwershaven, I.R. van; Baayen, R.P. - \ 2003
    European Journal of Plant Pathology 109 (2003)5. - ISSN 0929-1873 - p. 503 - 513.
    polymerase-chain-reaction - c-acutatum - phytophthora - dna - colletotrichum - identification - anthracnose - infestans - plants
    Based on the ITS regions of the ribosomal DNA, specific primer sets were developed for the citrus pathogen Guignardia citricarpa and the common citrus endophyte, G. mangiferae, and tested for their specificity against 37 isolates of G. citricarpa, 29 isolates of G. mangiferae, 10 isolates of related species and other fungi found on citrus. The efficacy of the PCR-detection method for G. citricarpa was approximately 60-70% for lesions without pycnidia, and approximately 90% for lesions with pycnidia. A reliability of 99% can be reached by analysing multiple lesions per sample. An internal control was developed to monitor DNA samples for PCR inhibition; samples with PCR inhibition should be re-examined. Detection by PCR is more rapid than the current five-day incubation method prescribed by the European Union for diagnosis of black spot lesions lacking the diagnostic pycnidia. The latter method had an efficacy of 40-50%, while culturing of suspected lesions had an efficacy of 10%. Species-specific primers and ITS sequence data showed that G. citricarpa can occur as a symptomless endophyte in leaves. This shows that wild and cultivated plants occurring in citrus groves are potential carriers of this quarantine fungus. Application of the presently developed PCR method for the detection of G. citricarpa will enable citrus producing as well as importing countries to prevent further spread of this harmful organism
    Nonpathogenic Isolates of the Citrus Black Spot Fungus, Guignardia citricarpa, Identified as a Cosmopolitan Endophyte of Woody Plants, Guignardia mangiferae (Phyllosticta capitalensis)
    Baayen, R.P. ; Bonants, P.J.M. ; Verkley, G.J.M. ; Carroll, G.C. ; Aa, H.A. van der; Weerdt, M. de; Brouwershaven, I.R. van; Maccheroni Jr., W. ; Glienke de Blanco, C. ; Azevedo, J.L. - \ 2002
    Phytopathology 92 (2002)5. - ISSN 0031-949X - p. 464 - 477.
    Phytophthora ramorum sp. nov., a new pathogen on Rhododendron and Viburnum
    Werres, S. ; Marwitz, R. ; Man in 't Veld, W. ; Cock, A.W.A.M. de; Bonants, P.J.M. ; Weerdt, M. de; Themann, K. ; Ilieva, E. ; Baayen, R.P. - \ 2001
    Mycological Research 105 (2001)10. - ISSN 0953-7562 - p. 1155 - 1165.
    Since 1993, a hitherto unidentified Phytophthora species has been found associated with twig blight disease in Rhododendron and, sporadically, Viburnum. The morphology and growth characteristics of fourteen isolates from Germany and the Netherlands were investigated, together with their breeding system, the internal transcribed spacer (ITS) regions of the ribosomal DNA, amplified fragment length polymorphism (AFLP) fingerprints, and isozyme profiles, which were compared to those of a number of outgroup species. Morphologically the isolates are characterized by abundant production of chlamydospores and elongate, ellipsoid, deciduous sporangia with a short pedicel, in which they resemble P. palmivora. However, sporangia were semi-papillate, chlamydospores were much larger and cardinal temperatures much lower than those of P. palmivora. Oogonia with amphigynous antheridia and plerotic oospores were produced in dual cultures with an A2 mating type strain of P. cryptogea. ITS1 and ITS2 sequences of the unidentified species were closest to those of P. lateralis, but differed in three and eight nucleotides respectively from the latter species AFLP fingerprints and isozyme patterns of malate dehydrogenase (MDH-2) and malic enzyme (MDHP) showed that the isolates formed a homogeneous group, distinct from all examined outgroup species, including P. lateralis. It was concluded that they represent a new Phytophthora species, described here as P. ramorum sp. nov. In pathogenicity tests all isolates of P. ramorum were pathogenic to Rhododendron.
    Molecular relationships of fungi within the Fusarium redolens - F. hostae clade
    Baayen, R.P. ; O'Donnell, K. ; Breeuwsma, S. ; Geiser, D.M. ; Waalwijk, C. - \ 2001
    Phytopathology 91 (2001)11. - ISSN 0031-949X - p. 1037 - 1044.
    The evolutionary relationships of fungi in the Fusarium redolens - F. hostae clade were investigated by constructing nuclear and mitochondrial gene genealogies for 37 isolates representing the known genetic and pathogenic diversity of this lineage, together with 15 isolates from putative sister groups that include the Gibberella fujikuroi and F. oxysporum species complexes and related species. Included in the analyses were 29 isolates of F. redolens from Asparagus, Convallaria, Dianthus, Fritillaria, Hebe, Helleborus, Hordeum, Linum, Pisum, Pseudotsuga, and Zea spp., and from soil. Isolates of F. hostae analyzed included two reference isolates from Hosta spp. and six isolates from Hyacinthus spp. that originally were classified as F. oxysporum f. sp. hyacinthi. DNA sequences from a portion of the nuclear translation elongation factor 1α (EF-1α) gene and the mitochondrial small subunit (mtSSU) ribosomal RNA (rRNA) were analyzed individually and as a combined data set based on results of the nonparametric Wilcoxon signed ranks Templeton combinability test. Maximum parsimony analysis of the combined data set identified the F. redolens-F. hostae clade as a sister group to a phylogenetically diverse clade in which the G. fujikuroi species complex formed the most basal lineage. Also included in this latter clade were two unnamed Fusarium spp. that are morphologically similar to F. oxysporum and putative sister taxa comprising the F. oxysporum complex and a F. nisikadoi-F. miscanthi clade. Phylogenetic diversity in F. redolens was small; all isolates were represented by only three EF-1α and two mtSSU rDNA haplotypes. Both the isolates of F. redolens f. sp. asparagi and those of F. redolens f. sp. dianthi were nearly evenly distributed in the combined molecular phylogeny between the two major subclades within F. redolens.
    Pest risk assessment for the countries of the European Union (as PRA area) on Monilinia fructicola
    Leeuwen, G.C.M. van; Baayen, R.P. ; Jeger, M.J. - \ 2001
    EPPO Bulletin 31 (2001). - ISSN 0250-8052 - p. 481 - 487.
    Gene genealogies and AFLP analyses in the Fusarium oxysporum complex identify monophyletic and nonmonophyletic formae speciales causing wilt and rot disease
    Baayen, R.P. ; O'Donnell, K. ; Bonants, P.J.M. ; Cigelnik, E. ; Kroon, L.P.N.M. ; Roebroeck, E.J.A. ; Waalwijk, C. - \ 2000
    Phytopathology 90 (2000). - ISSN 0031-949X - p. 891 - 900.
    Molecular characterization of natural hybrids of Phytophthora nicotianae and P. cactorum
    Bonants, P.J.M. ; Hagenaar-de Weerdt, M. ; Man in 't Veld, W.A. ; Baayen, R.P. - \ 2000
    Phytopathology 90 (2000)8. - ISSN 0031-949X - p. 867 - 874.
    Hybrid isolates of Phytophthora nicotianae x P. cactorum from five different hosts (Cyclamen, Lavandula, Lewisia, Primula, and Spathiphyllum spp.) were identified by their atypical morphology and their well-defined heterozygous isozyme patterns. The hybrid nature of these isolates was tested by restriction fragment length polymorphism analysis of the internal transcribed spacer (ITS) region of rDNA, generating fragments typical for both P. nicotianae and P. cactorum. In hybrid isolates, polymerase chain reactions (PCR) with primers derived from unique parts of the ITS region (ITS-PCR) of both species yielded a combination of unique amplicons typical of both parental species. Eleven hybrid isolates, three isolates of each parental species and two atypical isolates from Rhododendron and Idesia spp. close to P. cactorum, were analyzed for amplified fragment length polymorphisms (AFLP). Consistent differences in AFLP patterns existed among the hybrid isolates, strongly indicating that these hybrids have arisen from independent hybridization events between P. nicotianae and P. cactorum. The two atypical isolates morphologically resembling P. cactorum were identical to the latter species in ITS-restriction fragment length polymorphism and response to the specific PCR primers but were intermediate between P. nicotianae x P. cactorum and P. cactorum in isozyme profiles and AFLP patterns. Since the introduction of hydroponic systems in greenhouses in the Netherlands, outbreaks of Phytophthora diseases are occurring in previously unaffected host species. This may be due to interspecific hybridization events resulting in novel pathogenic behavior.
    The brown rot fungi of fruit crops (Monilinia spp.), with special reference to Monilinia fructigena (Aderh. & Ruhl.) Honey
    Leeuwen, G.C.M. van - \ 2000
    Agricultural University. Promotor(en): M.J. Jeger; R.P. Baayen. - S.l. : S.n. - ISBN 9789058082725 - 113
    fruitgewassen - monilinia - monilinia fructigena - plantenziekteverwekkende schimmels - rottingsschimmels - fruit crops - monilinia - monilinia fructigena - plant pathogenic fungi - decay fungi

    The brown rot fungi of fruit crops ( Monilinia spp.) cause blossom blight, twig blight, and fruit rot in rosaceous fruit crops in the temperate regions of the world. Three species are distinguished, of which M. fructicola and M. laxa are predominant in stone fruit culture, whereas M. fructigena is in pome fruits. This thesis deals partly with taxonomy and identification of the brown rot fungi, and with the epidemiology of M. fructigena in pome fruits.

    M. fructicola is considered as a quarantine organism for Europe, and adequate identification tools are essential to prevent the introduction of this species in Europe. The most important pathways that the pathogen can be carried on are imported fruits and nursery stock. An identification protocol was developed based on quantitative colony and germ tube characteristics to distinguish the three brown rot species. In a discriminant analysis, the combination of increase in colony diameter and length of the germ tube resulted in only two misclassifications out of 29 isolates tested. The ITS 1-5.8S-ITS 2 region of ribosomal DNA (rDNA) was sequenced for a wide range of isolates to support identification on the basis of morphology, and four distinct sequences were found. Japanese M. fructigena isolates differed from European ones by four transitions within the ITS 1 region and one transition in the ITS 2 region. Morphologically, significant differences were found in stroma formation and conidial dimensions between the Japanese and European group. A new Monilia anamorph was defined, Monilia polystroma Van Leeuwen, in which the Japanese M. fructigena isolates were included.

    In a two-years field study in an apple orchard, fruit loss caused by M. fructigena was quantified. In cv. James Grieve pre-harvest fruit loss ranged from 4.2 to 4.3 % in both years, in cv. Cox's Orange Pippin this was 4.4 % in 1997 and 2.7 % in 1998. The spatial distribution of diseased fruits among fruit trees, and that of trees with diseased fruits was analysed using Lloyd's index of patchiness (LIP) and spatial autocorrelation analysis respectively. Distinct clustering of diseased fruits among trees was detected in both cultivars in both years, whereas clustering of trees with diseased fruits did hardly occur. The concentration of airborne M. fructigena conidia in the orchard was monitored during two seasons, and related to ambient environmental conditions. Relative humidity, temperature, rainfall, wind speed and wind direction were monitored. The highest hourly concentration measured in 1997 was 233 conidia/m 3 and occurred during afternoon hours; in 1998 concentrations were lower than in 1997 throughout the season. Simple and multiple regression analysis was applied to relate weather variables to hourly spore catches. The factors relative humidity and temperature explained the variation in spore catches observed best.

    Mummification and (re)sporulation after infection of pome fruits by M. fructigena was studied in the field as well as under controlled environment conditions. Fruits of cv. Golden Delicious infected late in the season did not mummify, but sporulated profusely after overwintering. It was shown that early as well as late-in-the-season infected fruits contributed to the production of primary inoculum in the next season. Regeneration of conidia was much reduced in previously infected fruits after incubation under conditions of 20 and 25 °C and RH 65-85 % for 8 and 12 weeks.

    Fusarium redolens f.sp. asparagi, causal agent of asparagus root rot, crown rot and spear rot
    Baayen, R.P. ; Boogert, P.H.J.F. van den; Bonants, P.J.M. ; Poll, J.T.K. ; Blok, W.J. ; Waalwijk, C. - \ 2000
    European Journal of Plant Pathology 106 (2000). - ISSN 0929-1873 - p. 907 - 912.
    Corcordant phylogenies from gene genealogies (mtSSUrDNA; EF-1(), AFLP analyses reveal a polyphyletic nature for formae speciales in Fusarium oxysporum
    Baayen, R.P. ; O'Donnell, K. ; Waalwijk, C. ; Bonants, P.J.M. ; Kroon, L.P.N.M. ; Cigelnik, E. - \ 1999
    In: 2nd International Fusarium Biocontrol Workshop. 15-17 September 1999, Dijon, Frankrijk
    Phylogeny of VCGs and formae speciales of Fusarium oxysporum and F. redolens
    Baayen, R.P. ; O'Donnell, K. ; Waalwijk, C. ; Bonants, P.J.M. ; Cigelnik, E. ; Roebroeck, E.J.A. - \ 1999
    Phytoparasitica 27 (1999). - ISSN 0334-2123 - p. 71 - 71.
    Fine structure of the early interaction of lily roots with Fusarium oxysporum f.sp. lilii
    Baayen, R.P. ; Rijkenberg, F.H.J. - \ 1999
    European Journal of Plant Pathology 105 (1999). - ISSN 0929-1873 - p. 431 - 443.
    AFLP DNA fingerprinting of plantpathogenic fungi at IPO-DLO
    Bonants, P. ; Hagenaar-de Weerdt, M. ; Kema, G. ; Boogert, P. van den; Waalwijk, C. ; Baayen, R. - \ 1999
    Petria 9 (1999). - p. 97 - 104.
    Ultrastructural and cytochemical study of colonization of xylem vessel elements of susceptible and resistant Dianthus caryophyllus by Fusarium oxysporum f.sp. dianthi
    Ouellette, G.B. ; Baayen, R.P. ; Simard, M. ; Rioux, D. - \ 1999
    Canadian Journal of Botany 77 (1999). - ISSN 0008-4026 - p. 644 - 663.
    Check title to add to marked list
    << previous | next >>

    Show 20 50 100 records per page

     
    Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.