TY  - JOUR
A1  - Kummer, Volker
T1  - Zusammenstellung lokaler Pilzliteratur 2004 - 2008
Y1  - 2010
SN  - 0232-4598
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zusammenstellung lokaler Pilzliteratur 2000 - 2003
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zur Wasserpflanzenvegetation des Neuendorfer Sees
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Fischer, Wolfgang
A1  - Kummer, Volker
T1  - Zur Verbreitung und Soziologie von S colochloa festucacea L : in Nordostdeutschland und seine Unterscheidung von ähnlichen Gräsern nach vegetativen Merkmalen
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Fischer, Wolfgang
A1  - Kummer, Volker
A1  - Pötsch, Joachim
T1  - Zur Vegetation des Feuchtgebietes Internationaler Bedeutung (FIB) Untere Havel
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zur Pilzflora des Kienbergs bei Wolsier mit Hinweisen auf die Phanerogamenflora
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zum Vorkommen von Asplenium viride HUDS : in Berlin und Brandenburg
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zum Vorkommen im Cetraria islandica (.L) ACH., dem isländischen Moos, und Cetraria ericetorium OPIZ in Brandenburg unter besonderer Berücksichtigung der Niederlausitz
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Zum Vorkommen des Sternstäublings (Mycenastrum corium) in der Niederlausitz
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Richter, Torsten
A1  - Schwik, Jürgen
T1  - Wegelina grumsiniana comb. nov. (Ascomycetes, Calosphaeriales) : ein Pyrenomycet auf der Porenschicht faulender Zunderschwämme (Fomes fomentarius)
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Vor 125 Jahren tagte der Botanische Verein der Provinz Brandenburg in Lübben
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Von Anemone bis Zimbelkraut
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Vom Seidenbau in Krausnick
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Vielstengeliges Sumpfried (Eleocharis multicaulis) am Luchsee gefunden
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Usnea filipendula : ein bemerkenswerter Flechtenfund bei Krausnick
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Klopfer, Klaus
T1  - Untersuchungen zur morphologischen Differenzierung von 5 nahe verwandten Sommergerstensorten
Y1  - 1992
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Lehnhardt, Lothar
A1  - Klopfer, Klaus
T1  - Untersuchungen zur Fremdbesatzproblematik bei 5 Gerstensorten mittels Ährennachkommenschaftsprüfung und Hordeinelektrophorese
Y1  - 1992
ER  - 
TY  - JOUR
A1  - Wolters, Steffen
A1  - Bittmann, Felix
A1  - Kummer, Volker
T1  - The first subfossil records of Urtica kioviensis Rogow. and their consequences for palaeoecological interpretations
N2  - Among plant remains from Mesolithic layers dating from 9249 to 7779 B.C. at the excavation site of Friesack IV in north-eastern Germany, nutlets of Urtica kioviensis were identified. Morphological studies have shown that they clearly differed from all other European Urtica species investigated. In contrast, pollen morphological investigations revealed only slight differences between the central European Urtica species, which could hardly have been noticed during routine or normal pollen analyses. The records of U. kioviensis nutlets are the first subfossil finds reported and prove the indigenous status of this taxon in north-eastern Germany. The records are discussed in the context of the overall species spectrum of the Mesolithic layers and consequences for the interpretation of pollen analytical studies concerning human impact are pointed out
Y1  - 2005
ER  - 
TY  - GEN
A1  - Kruse, Julia
A1  - Kummer, Volker
A1  - Shivas, Roger G.
A1  - Thines, Marco
T1  - The first smut fungus, Thecaphora anthemidis sp. nov. (Glomosporiaceae), described from Anthemis (Asteraceae)
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - There are 63 known species of Thecaphora (Glomosporiaceae, Ustilaginomycotina), a third of which occur on Asteraceae. These smut fungi produce yellowish-brown to reddish-brown masses of spore balls in specific, mostly regenerative, plant organs. A species of Thecaphora was collected in the flower heads of Anthemis chia (Anthemideae, Asteraceae) on Rhodes Island, Greece, in 2015 and 2017, which represents the first smut record of a smut fungus on a host plant species in this tribe. Based on its distinctive morphology, host species and genetic divergence, this species is described as Thecaphora anthemidis sp. nov. Molecular barcodes of the ITS region are provided for this and several other species of Thecaphora. A phylogenetic and morphological comparison to closely related species showed that Th. anthemidis differed from other species of Thecaphora. Thecaphora anthemidis produced loose spore balls in the flower heads and peduncles of Anthemis chia unlike other flower-infecting species.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 995 
KW  - Glomosporiaceae
KW  - host specificity
KW  - internal transcribed spacer
KW  - molecular phylogenetics
KW  - smut fungi
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-446377
SN  - 1866-8372
SP  - 39
EP  - 50
ER  - 
TY  - JOUR
A1  - Kruse, Julia
A1  - Kummer, Volker
A1  - Shivas, Roger G.
A1  - Thines, Marco
T1  - The first smut fungus, Thecaphora anthemidis sp nov (Glomosporiaceae), described from Anthemis (Asteraceae)
JF  - MycoKeys
N2  - There are 63 known species of Thecaphora (Glomosporiaceae, Ustilaginomycotina), a third of which occur on Asteraceae. These smut fungi produce yellowish-brown to reddish-brown masses of spore balls in specific, mostly regenerative, plant organs. A species of Thecaphora was collected in the flower heads of Anthemis chia (Anthemideae, Asteraceae) on Rhodes Island, Greece, in 2015 and 2017, which represents the first smut record of a smut fungus on a host plant species in this tribe. Based on its distinctive morphology, host species and genetic divergence, this species is described as Thecaphora anthemidis sp. nov. Molecular barcodes of the ITS region are provided for this and several other species of Thecaphora. A phylogenetic and morphological comparison to closely related species showed that Th. anthemidis differed from other species of Thecaphora. Thecaphora anthemidis produced loose spore balls in the flower heads and peduncles of Anthemis chia unlike other flower-infecting species.
KW  - Glomosporiaceae
KW  - host specificity
KW  - internal transcribed spacer
KW  - molecular phylogenetics
KW  - smut fungi
Y1  - 2018
U6  - https://doi.org/10.3897/mycokeys.41.28454
SN  - 1314-4057
SN  - 1314-4049
IS  - 41
SP  - 39
EP  - 50
PB  - Pensoft Publ.
CY  - Sofia
ER  - 
TY  - BOOK
A1  - Ale-Agha, Nosratollah
A1  - Boyle, H.
A1  - Braun, Uwe
A1  - Butin, H.
A1  - Jage, Horst
A1  - Kummer, Volker
A1  - Shin, H.
T1  - Taxonomy, host range and distribution of some powdery mildew fungi (Erysiphales)
N2  - Oidium pedaliacearum sp. nov. (; O. sesami, nom. inval.) and Podosphaera macrospora comb. et stat. nov. (; Sphaerotheca alpina f. macrospora) are introduced, and the taxonomy and distribution of Erysiphe celosiae is discussed. New host species and new collections of Erysiphe cruciferarum (on Cleome hassleriana), E. flexuosa (on Aesculus hippocastanum), E. hedwigii (on Viburnum carlesii), E. heraclei (on Tinguarra montana), E. cf. macleayae (on Macleaya cordata), E. prunastri (on Prunus cerasifera), E. sedi (on Sedum aff. spectabilis), E. trifolii (on Trigonella caerulea), Golovinomyces cichoracearum (on Argyranthemum pinnatifidum subsp. succulentum), G. cf. hydrophyllacearum (on Nemophila menziesii), G. orontii (on Nolana spp.), G. cf. orontii (on Tiarella cordifolia), Neoerysiphe cumminsiana (on Bidens cf. ferulifolia), Oidium clitoriae (on Clitoria ternatea), O. cf. hortensiae (on Philadelphus coronarius), O. pedilanthi (on Pedilanthus tithymaloides), Oidium (Pseudoidium) sp. (on Utricularia alpina), Podosphaera sp. (on Bergia capensis), Sawadaea bicornis (on Acer platanoides) and S. tulasnei (on Acer ginnala and A. tatarica) are recorded from France, Germany, Greece and Mexico.
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Braun, Uwe
A1  - Kummer, Volker
A1  - Xu, B.
T1  - Taxonomy and nomenclature of powdery mildew fungi : erysiphe asclepiadis, E. robiniicola and Golovinomyces caulicola
N2  - The new species Erysiphe asclepiadis is described, illustrated and discussed. A new Chinese collection of Erysiphe robiniicola has recently been found that can be used to elucidate and discuss the confused taxonomy and nomenclature of this species and other taxa of Erysiphe s. lat. on Robinia spp. Based on a re-examination of type material in connection with the data given in the protologue, it can be shown that Capnodium lygodesmiae must be reduced to synonymy with Ampelomyces quisqualis. The confusion surrounding the name C. lygodesmiae, caused by the occurrence of the hyperparasite A. quisqualis on a powdery mildew fungus with abundant chasmothecia, is discussed in detail. The new combination, Golovinomyces caulicola (; Spolverinia caulicola), is proposed for the powdery mildew that serves as host of C. lygodesmiae.
Y1  - 2009
ER  - 
TY  - JOUR
A1  - Bubner, Ben
A1  - Buchheit, Ramona
A1  - Friedrich, Frank
A1  - Kummer, Volker
A1  - Scholler, Markus
T1  - Species identification of European forest pathogens of the genus Milesina (Pucciniales) using urediniospore morphology and molecular barcoding including M. woodwardiana sp. nov.
JF  - MycoKeys
N2  - Species of rust fungi of the genus Milesina (Pucciiastraceae, Pucciniales) are distributed mainly in northern temperate regions. They host-alternate between needles of fir (Abies spp.) and fronds of ferns (species of Polypodiales). Milesina species are distinguished based on host taxonomy and urediniospore morphology. In this study, 12 species of Milesina from Europe were revised. Specimens were examined by light and scanning electron microscopy for urediniospore morphology with a focus on visualising germ pores (number, size and position) and echinulation. In addition, barcode loci (ITS, nad6, 28S) were used for species delimitation and for molecular phylogenetic analyses. Barcodes of 72 Milesina specimens were provided, including 11 of the 12 species. Whereas urediniospore morphology features were sufficient to distinguish all 12 Milesina species except for 2 (M. blechni and M. kriegeriana), ITS sequences separated only 4 of 11 species. Sequencing with 28S and nad6 did not improve species resolution. Phylogenetic analysis, however, revealed four phylogenetic groups within Milesina that also correlate with specific urediniospore characters (germ pore number and position and echinulation). These groups are proposed as new sections within Milesina (sections Milesina, Vogesiacae M. Scholler & Bubner, sect. nov., Scolopendriorum M. Scholler & Bubner, sect. nov. and Carpaticae M. Scholler & Bubner, sect. nov.). In addition, Milesina woodwardiana Buchheit & M. Scholler, sp. nov. on Woodwardia radicans, a member of the type section Milesina, is newly described. An identification key for European Milesina species, based on urediniospore features, is provided.
KW  - Abies alba
KW  - Polypodiales
KW  - GBOL
KW  - germ pores
KW  - host alternation
KW  - Uredinopsis
KW  - Europe
Y1  - 2019
U6  - https://doi.org/10.3897/mycokeys.48.30350
SN  - 1314-4057
SN  - 1314-4049
IS  - 48
SP  - 1
EP  - 40
PB  - Pensoft Publishers
CY  - Sofia
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Burkart, Michael
T1  - Scolochloa festucacea (WILLD.) LINK in der Unteren Havelniederung Sachsen-Anhalts
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Baral, Hans Otto
A1  - Rönsch, Peter
A1  - Richter, Udo
A1  - Urban, Alexander
A1  - Kruse, Julia
A1  - Bemmann, Martin
A1  - Kummer, Volker
A1  - Javier Valencia, Francisco
A1  - Huth, Wolfgang
T1  - Schroeteria decaisneana, S. poeltii, and Ciboria ploettneriana (Sclerotiniaceae, Helotiales, Ascomycota), three parasites on Veronica seeds
BT  - first report of teleomorphs in Schroeteria
JF  - Mycological progress : international journal of the German Mycological Society
N2  - Ciboria ploettneriana, Schroeteria decaisneana, and S. poeltii produce morphologically very similar apothecia emerging from fallen stromatized seeds of Veronica spp., the former two on V. hederifolia agg. in temperate central Europe and S. poeltii on V. cymbalaria in mediterranean southern Europe. They are described and illustrated in detail based on fresh collections or moist chamber cultures of infected seeds. A key is provided to differentiate the three species from their teleomorphs. For the first time, connections between two teleomorphs and two Schroeteria anamorphs are reported. Members of the anamorph-typified genus Schroeteria are known as host-specific plant parasites that infect seeds of different Veronica spp. In earlier times, they were classified in the Ustilaginales (Basidiomycota), but since more than 30 years, they are referred to as false smut fungi producing smut-like chlamydospores, based on light microscopic and ultrastructural studies which referred them to the Sclerotiniaceae (Helotiales). During the present study, rDNA sequences were obtained for the first time from chlamydospores of Schroeteria bornmuelleri (on V. rubrifolia), S. decaisneana (on V. hederifolia), S. delastrina (generic type, on V. arvensis), and S. poeltii (on V. cymbalaria) and from apothecia of C. ploettneriana, S. decaisneana, and S. poeltii. As a result, the anamorph-teleomorph connection could be established for S. decaisneana and S. poeltii by a 100% ITS similarity, whereas C. ploettneriana could not be connected to a smut-like anamorph. Ciboria ploettneriana in the here-redefined sense clustered in our combined phylogenetic analyses of ITS and LSU in relationship of Sclerotinia s.l., Botrytis, and Myriosclerotinia rather than Ciboria, but its placement was not supported. Its affiliation in Ciboria was retained until a better solution is found. Also Schroeteria poeltii clustered unresolved in this relationship but with a much higher molecular distance. The remaining three Schroeteria spp. formed a strongly supported monophyletic group, here referred to as "Schroeteria core clade", which clustered with medium to high support as a sister clade of Monilinia jezoensis, a member of the Monilinia alpina group of section Disjunctoriae. We observed ITS distances of 5-6.3% among members of the Schroeteria core clade, but 13.8-14.7% between this clade and S. poeltii, which appears to be correlated with the deviating chlamydospore morphology of S. poeltii. Despite its apparent paraphyly, Schroeteria is accepted here in a wide sense as a genus distinct from Monilinia, particularly because of its very special anamorphs. A comparable heterogeneity in rDNA analyses was observed in Monilinia and other genera of Sclerotiniaceae. Such apparent heterogeneity should be met with skepticism, however, because the inclusion of protein-coding genes in phylogenetic analyses resulted in a monophyletic genus Monilinia. More sclerotiniaceous taxa should be analysed for protein-coding genes in the future, including Schroeteria. Four syntype specimens of Ciboria ploettneriana in B were reexamined in the present study, revealing a mixture of the two species growing on V. hederifolia agg. Based on its larger ascospores in comparison with S. decaisneana, a lectotype is proposed for C. ploettneriana.
KW  - anamorph-teleomorph connection
KW  - plant parasite
KW  - false smut fungi
KW  - seed
KW  - infection
KW  - Veronica hederifolia
KW  - Veronica cymbalaria
Y1  - 2022
U6  - https://doi.org/10.1007/s11557-021-01742-4
SN  - 1617-416X
SN  - 1861-8952
VL  - 21
IS  - 1
SP  - 359
EP  - 407
PB  - Springer
CY  - Berlin ; Heidelberg
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Rutstroemia fruticeti und Velutarina rufoolivacea : zwei wenig beachtete Besiedler abgestorbener Rubus fruticosus-Ruten
Y1  - 2002
SN  - 0014-8962
ER  - 
TY  - JOUR
A1  - Goerg, Marlena
A1  - Ploch, Sebastian
A1  - Kruse, Julia
A1  - Kummer, Volker
A1  - Runge, Fabian
A1  - Choi, Young-Joon
A1  - Thines, Marco
T1  - Revision of Plasmopara (Oomycota, Peronosporales) parasitic to Impatiens
JF  - Mycological progress : international journal of the German Mycological Society
N2  - The oomycete Plasmopara obducens was first described on wild Impatiens noli-tangere in Germany in 1877. About 125 years later the first occurrence of P. obducens on cultivated I. walleriana in the United Kingdom was reported, and a worldwide epidemic followed. Although this pathogen is a major threat for ornamental busy lizzy, the identity of the pathogen remained unconfirmed and the high host specificity observed for the genus Plasmopara cast doubts regarding its determination as P. obducens. In this study, using multigene phylogenies and morphological investigation, it is revealed that P. obducens on I. noli-tangere is not the conspecific with the pathogen affecting I. walleriana and another ornamental balsam, I. balsamina. As a consequence, the new names P. destructor and P. velutina are introduced for the pathogens of I. walleriana and I. balsamina, respectively.
KW  - Busy lizzy
KW  - Downy mildew
KW  - Horticulture
KW  - Lady slipper balsam
KW  - New species
KW  - Peronosporaceae
KW  - Taxonomy
KW  - Touch-me-not
Y1  - 2017
U6  - https://doi.org/10.1007/s11557-017-1316-y
SN  - 1617-416X
SN  - 1861-8952
VL  - 16
SP  - 791
EP  - 799
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - JOUR
A1  - Rottstock, Tanja
A1  - Kummer, Volker
A1  - Fischer, Markus
A1  - Joshi, Jasmin Radha
T1  - Rapid transgenerational effects in Knautia arvensis in response to plant community diversity
JF  - The journal of ecology
N2  - 1. Plant species persistence in natural communities requires coping with biotic and abiotic challenges. These challenges also depend on plant community composition and diversity. Over time, biodiversity effects have been shown to be strengthened via increasing species complementarity in mixtures. Little is known, however, whether differences in community diversity and composition induce rapid transgenerational phenotypic adaptive differentiation during community assembly. We expect altered plant-plant and other biotic interactions (mutualists or antagonists) in high vs. low diverse communities to affect immediate within-and between-species trait differentiations due to competition for light and nutrients. 2. Three years after the initiation of a large-scale, long-term biodiversity experiment in Jena, Germany, we tested for effects of varying experimental plant community diversity (1-60 plant species; one to four plant functional groups) and composition (with or without legumes and/or grasses) on phenotypic differentiation and variation of the tall herb Knautia arvensis. We measured reproduction at different diversity levels in the Jena Experiment (residents hereafter) and, in an additional common garden experiment without competition, recorded subsequent offspring performance (i.e. growth, reproductive success and susceptibility to powdery mildew) to test for differentiation in phenotypic expression and variability. 3. We observed phenotypic differences among diversity levels with reduced fecundity of K. arvensis residents in more diverse communities. In the next generation grown under common garden conditions, offspring from high-diversity plots showed reduced growth (i.e. height) and lower reproduction (i.e. fewer infructescences), but increased phenotypic trait variability (e.g. in leaf width and powdery mildew presence) and also tended to be less susceptible to powdery mildew infection. 4. Community composition also affected Knautia parents and offspring. In the presence of legumes, resident plants produced more seeds (increased fecundity); however, germination rate of those seeds was reduced at an early seedling stage (reduced fertility). 5. Synthesis. We conclude that rapid transgenerational effects of community diversity and composition on both mean and variation of phenotypic traits among offspring exist. In addition to heritable variation, environmentally induced epigenetic and/or maternal processes matter for early plant community assembly and may also determine future species coexistence and community stability.
KW  - biodiversity effects
KW  - environmental conditions
KW  - fungal pathogen susceptibility
KW  - grassland communities
KW  - phenotypic variability
KW  - plant development and life-history traits
KW  - plant species diversity
KW  - plasticity
KW  - selection
KW  - transgenerational effects
Y1  - 2017
U6  - https://doi.org/10.1111/1365-2745.12689
SN  - 0022-0477
SN  - 1365-2745
VL  - 105
SP  - 714
EP  - 725
PB  - Wiley
CY  - Hoboken
ER  - 
TY  - BOOK
A1  - Braun, Uwe
A1  - Jage, Horst
A1  - Kummer, Volker
A1  - Zimmermann, Holger
T1  - Podosphaera cf. pruinosa on Rhus hirta in Germany
N2  - The introduction of a new powdery mildew disease on Rhus hirta in various parts of Germany (Brandenburg, Rhine- Westphalia, Sachsen-Anhalt and Saxony) is reported. The anamorph found on this host agrees well with the North American Podosphaera pruinosa. Although the teleomorph has not yet been found in Germany and a molecular study has not yet been possible due to the lack of fresh North American material for a comparison, there is little doubt that the European outbreak of the Rhus powdery mildew disease may be referred to as Podosphaera pruinosa. Morphology, taxonomy and distribution of Podosphaera species on Rhus and other hosts of the Anacardiaceae are discussed in detail.
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Hanelt, Dorothea
A1  - Hanelt, Peter
A1  - Jage, Horst
A1  - John, Heino
A1  - Richter, Heidrun
A1  - Richter, Udo
A1  - Schultz, Burkhard
T1  - Phyllactinia hippophaës (Erysiphales) rediscovered in Germany
N2  - The Erysiphales species Phyllactinia hippophaës Thuem. ex S. Blumer was found for the fi rst time on cultivated Sea Buckthorn (Hippophaë rhamnoides L.) near Großkayna (Saxony-Anhalt) in October 2009. This fungus was considered to be extinct in Germany. Intensive searching in Saxony-Anhalt and the Potsdam area (Brandenburg) yielded many additional records, most of them from former brown coal mining areas or in Sea Buckthorn plantations.
Y1  - 2010
SN  - 1641-8180
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Notizen über einige Adventivpflanzenfunde auf dem Krausnicker Müllplatz
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Notizen über den Amtsgarten zu Krausnick
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Notizen zur Pilzflora des Lübbener " Hains"
Y1  - 2000
ER  - 
TY  - BOOK
A1  - Kummer, Volker
T1  - Notizen zur Pflanzenwelt des NSG "Alter Nuthelauf"
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Notizen zu einem Vorkommen des Roten Waldvögeleins bei Falkensee
Y1  - 1993
ER  - 
TY  - BOOK
A1  - Braun, Uwe
A1  - Ale-Agha, Nosratollah
A1  - Bolay, Adrien
A1  - Boyle, H.
A1  - Brielmaier-Liebetanz, U.
A1  - Emgenbroich, D.
A1  - Kruse, J.
A1  - Kummer, Volker
T1  - New records of powdery mildew fungi (Erysiphaceae)
N2  - The conidial stage and chasmothecia of Golovinomyces orontii have been found in Germany on cultivated Limnanthes douglasii. A powdery mildew anamorph found in the Netherlands on Malva alcea agrees morphologically with the Oidium of the latter species as well. Golovinomyces sp. (anamorph) on Parthenium integrifolium is described and discussed. Erysiphe sp. has been found in Germany on Acer opalus, and E. magnifica is recorded from Germany and Switzerland on Magnolia spp. Oidium passiflorae is new to Switzerland. An Oidium morphologically agreeing with the anamorph of Podosphaera aphanis has recently been collected on Exacum macranthum cultivated in a greenhouse, and conidiophores and conidia of a species of Podosphaera sect. Sphaerotheca subsect. Magnicellulatae (P. fusca complex) on Phlox paniculata and Polemonium caeruleum have been found in Germany.
Y1  - 2009
ER  - 
TY  - JOUR
A1  - Jage, Horst
A1  - Klenke, F.
A1  - Kummer, Volker
T1  - Neufunde und bemerkenswerte Bestätigungen von phytoparasitischen Kleinpilzen in Deutschland - Teil 1 : Erysiphales (Echte Mehltaupilze)
N2  - Members of the Erysiphales are conspicuous phytoparasitic microfungi during the late summer and autumn period. A lot of literature sources were evaluated by BRANDENBURGER & HAGEDORN (2006). They give an overview of the floristic data of the separate Erysiphales-host-combinations in the individual federal states of Germany. Unfortunately, most of the articles published after 2000 and especially many unpublished data assembled since 1970s have not been included. Therefore the present list is a supplementa-tion to BRANDENBURGER & HAGEDORN (2006). A total of 1.994 new records of Erysiphales-host-combinations from all federal states of Germany the Saarland excluded have been listed. Most of them are from Brandenburg, Saxony and Saxony-Anhalt. In contrast to that obvious deficits clearly exist in the federal states of Bremen, Hamburg, Hessen and Mecklenburg-Western Pomerania. Compared to BRANDENBURGER & HAGEDORN (2006) only the first record of the respective Erysiphales-host-combination in the particular federal states of Germany is given. If the last record of an Erysiphales-host-combination is older than 25 years in some cases a new record is also listed. Since 2000 17 Erysiphales taxa have been collected in Germany for the first time. All in all 97 matrices novae especially different cultivated plants are compiled. 49 resp. 59 fungus-host-combinations are new for Europe and Central Europe and furthermore 199 combinations are new for Germany. 54 records are the first exact data for the occurrence of the fungus- host-combination in Germany. These combinations have been listed globally in the literature for Germany until today but without any exact data. A part of the given records offer double infections with other phytoparasitic micro-fungi. These infections have been represented summarily. A list of fungus-host-combinations published in the literature but not clearly recorded for Germany is given.
Y1  - 2010
SN  - 1436-2317
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Neue Erkenntnisse über den Ursprung der Krausnicker Kirche und ihre Einordnung in die damalige Kirchenbauentwicklung
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Choi, Young-Joon
A1  - Klosterman, Steven J.
A1  - Kummer, Volker
A1  - Voglmayr, Hermann
A1  - Shin, Hyeon-Dong
A1  - Thines, Marco
T1  - Multi-locus tree and species tree approaches toward resolving a complex clade of downy mildews (Straminipila, Oomycota), including pathogens of beet and spinach
JF  - Molecular phylogenetics and evolution
N2  - Accurate species determination of plant pathogens is a prerequisite for their control and quarantine, and further for assessing their potential threat to crops. The family Peronosporaceae (Straminipila; Oomycota) consists of obligate biotrophic pathogens that cause downy mildew disease on angiosperms, including a large number of cultivated plants. In the largest downy mildew genus Peronospora, a phylogenetically complex clade includes the economically important downy mildew pathogens of spinach and beet, as well as the type species of the genus Peronospora. To resolve this complex clade at the species level and to infer evolutionary relationships among them, we used multi-locus phylogenetic analysis and species tree estimation. Both approaches discriminated all nine currently accepted species and revealed four previously unrecognized lineages, which are specific to a host genus or species. This is in line with a narrow species concept, i.e. that a downy mildew species is associated with only a particular host plant genus or species. Instead of applying the dubious name Peronospora farinosa, which has been proposed for formal rejection, our results provide strong evidence that Peronospora schachtii is an independent species from lineages on Atriplex and apparently occurs exclusively on Beta vulgaris. The members of the clade investigated, the Peronospora rumicis clade, associate with three different host plant families, Amaranthaceae, Caryophyllaceae, and Polygonaceae, suggesting that they may have speciated following at least two recent inter-family host shifts, rather than contemporary cospeciation with the host plants. (C) 2015 Elsevier Inc. All rights reserved.
KW  - Cospeciation
KW  - Host shift
KW  - Multi-locus phylogeny
KW  - Oomycetes
KW  - Peronospora farinosa
KW  - Species tree
Y1  - 2015
U6  - https://doi.org/10.1016/j.ympev.2015.03.003
SN  - 1055-7903
SN  - 1095-9513
VL  - 86
SP  - 24
EP  - 34
PB  - Elsevier
CY  - San Diego
ER  - 
TY  - JOUR
A1  - Ali, Tahir
A1  - Runge, Fabian
A1  - Dutbayev, Ayan
A1  - Schmuker, Angelika
A1  - Solovyeva, Irina
A1  - Nigrelli, Lisa
A1  - Buch, Ann-Katrin
A1  - Xia, Xiaojuan
A1  - Ploch, Sebastian
A1  - Orren, Ouria
A1  - Kummer, Volker
A1  - Paule, Juraj
A1  - Celik, Ali
A1  - Vakhrusheva, Ljudmila
A1  - Gabrielyan, Ivan
A1  - Thines, Marco
T1  - Microthlaspi erraticum (Jord.) T. Ali et Thines has a wide distribution, ranging from the Alps to the Tien Shan
JF  - Flora : morphology, distribution, functional ecology of plants
N2  - Microthlaspi is a predominantly Eurasian genus which also occurs in the northernmost parts of Africa (Maghreb). The most widespread species of the genus is M. perfoliatum, which can be found from Sweden to Algeria and from Portugal to China. The other species are thought to have much more confined distribution ranges, often covering only a few hundred kilometres. This is also believed for the diploid M. erraticum, which was recently re-appraised as a taxon independent from the tetra- to hexaploid M. perfoliatum. Previously, M. erraticum was believed to be present only in Central Europe, from the East of France to Slovenia. In order to gain a deeper understanding of the ecology, evolution and migration history of Microthlaspi it was the focus of the current study to investigate, if M. erraticum is present in habitats outside Central Europe, but with microclimates similar to Central Europe. It is demonstrated that M. erraticum is much more widespread than previously thought, while other lineages apart from M. perfoliatum s.str. and M. erraticum seem to have restricted distribution ranges. The latter species was observed from the Alps and their foreland, the Balkans, the mountainous areas around the Black Sea, Southern Siberia, as well as the Altai and Tien Shan mountains. This demonstrates a widespread occurrence of this easily-overlooked species. (C) 2016 Elsevier GmbH. All rights reserved.
KW  - Biogeography
KW  - Coluteocarpeae
KW  - Noccaea
KW  - Phylogeny
KW  - Species complex
KW  - Thlaspi perfoliatum
Y1  - 2016
U6  - https://doi.org/10.1016/j.flora.2016.09.008
SN  - 0367-2530
SN  - 1618-0585
VL  - 225
SP  - 76
EP  - 81
PB  - American Chemical Society
CY  - Jena
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Loweomyces fractipes im Unterspreewald gefunden
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Litterski, B., Pflanzengeographische und ökologische Bewertung der Flechtenflora Mecklenburg-Vorpommerns; Berlin, Cramer, 1999
BT  - Pflanzengeographische und ökologische Bewertung der Flechtenflora Mecklenburg-Vorpommerns
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Literaturhinweis
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Ristow, Michael
A1  - Herrmann, Andreas
A1  - Illig, Hubert
A1  - Klemm, Gunther
A1  - Kummer, Volker
A1  - Kläge, Hans-Christian
A1  - Machatzi, Bernd
A1  - Raetzel, Stefan
A1  - Schwarz, R.
A1  - Zimmermann, Friedrich
T1  - Liste und Rote Liste der etablierten Gefäßpflanzen Brandenburgs
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - List of fungi (ascomycetes, basidiomycetes, myxomycetes and phytoparasitic fungi) recorded in the Bol'soj Thac area between the so called "Devils gate" (Acesbok) and the village Novoprohladnoe
N2  - The list contains all the identified fungi collections of the excursion in 1998. In it were also included some records published by OTTO (2001) and few unpublished data of fungi mainly collected by V. Otte after 1998. Unless other information is given, all the fungal collections and their determination were done by the author. Most of the collections are integrated as exsiccata in the herbarium of the author.
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Jentsch, Helmut
T1  - Korrekturen und Nachträge als Vorarbeit zu einer Flora des Spreewaldes
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Korrekturen und Ergänzungen zur Pilzflora des Unteren Haveltales.-
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Kommt Plagiothecium undulatum (HEDW) B.S.G. noch in der Niederlausitz vor?
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kühling, Matthias
A1  - Kummer, Volker
T1  - Im Land der Araukarier
Y1  - 1999
ER  - 
TY  - BOOK
A1  - Kummer, Volker
T1  - Historie der Krausnicker Kirche
Y1  - 1992
PB  - Fata-Morgana-Verl.
CY  - Berlin
ER  -