TY  - JOUR
A1  - Bitzer, Jens
A1  - Laessøe, Thomas
A1  - Fournier, Jaques
A1  - Kummer, Volker
A1  - Decock, Cony
A1  - Tichy, Hans-Volker
A1  - Piepenbring, Meike
A1  - Persoh, Derek
A1  - Stadler, Marc
T1  - Affinities of Phylacia and the daldinioid Xylariaceae, inferred from chemotypes of cultures and ribosomal DNA sequences
N2  - A chemotaxonomic evaluation using hplc profiling was undertaken to resolve the infrageneric and intergeneric affinities of over 150 strains of Xylariaceae. Daldinia placentiformis, Hypoxylon nicaraguense, H. polyporus, and Phylacia sagrana were found to contain 8-methoxy-1-naphthol, which is apparently absent in Annulohypoxylon, Hypoxylon, and related genera with bipartite stromata. D. placentiformis and other species of Daldinia and Entonaema produced this naphthol, 5-hydroxy-2-methylchromone, isosclerone derivatives, and 'AB-5046' phytotoxins. Phylacia sagrana differed from most Daldinia spp., except for D. caldariorum, by producing eutypine derivatives in addition to the above compounds. indolylquinones were observed in H. nicaraguense and H. polyporus. Isosclerones were also identified in the A. multiforme complex, but Hypoxylon and other Annulohypoxylon and most Hypoxylon spp. studied Annulohypoxylon spp. contained S-methylmellein as the major metabolite of their cultures. Based on the occurrence of the above metabolites, further mellein-type dihydroisocoumarins, teleomorphic and anamorphic Xylariaceae with Nodulisporium-like anamorphs ('Hypoxyloideae') were divided into various chemotypes. A comparison of their 5.8S/ ITS nuc-rDNA sequences agreed in some important aspects with the above results: H. nicaraguense and H. polyporus appeared basal to a clade comprising Daldinia, Entonaema, and Ph. sagrana. The latter species appeared allied to D. caldariorum, but was distantly related to Pyrenomyxa morganii and Hypoxylon s. str. (C) 2007 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.
Y1  - 2008
SN  - 0953-7562
ER  - 
TY  - JOUR
A1  - Benkert, Dieter
A1  - Kummer, Volker
T1  - Amanita vittadinii in Brandenburg
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Auf der Suche nach der "Blauen Blume"
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Luschka, Norbert
A1  - Otto, Peter
T1  - Aufruf für neue Serien zur Kartierung der Pilze Ostdeutschlands
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beitrag zur Flora des Potsdamer Stadtgebietes
Y1  - 2003
SN  - 0724-3111 -
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Buhr, Christoph
T1  - Beitrag zur Flora des Potsdamer Stadtgebietes II
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Buhr, Christoph
A1  - Kummer, Volker
T1  - Beitrag zur Flora des Potsdamer Stadtgebietes III
N2  - A list of rare or interesting phanerogams from Potsdam and surroundings is presented. Most of them were recorded between 2006 and 2008. In some cases short remarks about the taxonomy, distribution and other details are given. The collections of Geranium purpureum and Parietaria judaica are the first records for Brandenburg. The collections of Agastache foeniculum, Coreopsis lanceolata, Geranium nodosum, Hieracium amplexicaule, Juncus ensifolius, Lactuca virosa, Sedum sarmentosum and Verbena bonariensis are probably the first information about adventive occurences of these species in this Federal State. Viscum album is reported on rare host species: Chaenomelis sp., Quercus spp. and Rosa hybrids.
Y1  - 2010
SN  - 0945-4292
ER  - 
TY  - JOUR
A1  - Jage, Horst
A1  - Kummer, Volker
A1  - Illig, Hubert
A1  - Petrick, Wolfgang
T1  - Beitrag zur Kenntnis phytoparasitischer Kleinpilze in der Niederlausitz (Land Brandenburg) : Teil 2
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beitrag zur Pilzflora des Neuzeller Fasanenwaldes
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 07.10.07 in der Calauer Schweiz bei Cabel
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 09.10.05 in der Umgebung der Försterei Rochau
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 10.10.2004 im Bereich des Drehnaer Weinberges
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Ergebnisse der Pilzexkursion am 12.10.08 im Kasel- Reichwalder Busch bei Reichwalde
Y1  - 2009
SN  - 1432-4199
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 03.10.97 zum Nordufer des Sandteiches bei Fürstlich Drehna
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 05.10.02 bei Prierow
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 06.10.02 bei Stöbritz-Willmersdorf sowie östlich von Egsdorf
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 07.10.00 im Gebiet des Tiergartens südlich Weißack
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 07.10.01 im Gebiet des ehem. Tagebaus Schlabendorf-Nord
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora der Luckauer Umgebung : die Makromyceten der Pilzexkursion am 10.10.99 im Krossener Busch
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora des Spreewaldes : I. Bemerkenswerte und seltene Funde aus dem Unterspreewaldgebiet
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora des Spreewaldes : II. Die Myxo- und Makromyceten (Ascomycetes, Basidiomycetes) im Bereich des Neuendorfer Sees (Biosphärenreservat Spreewald) ; Teil 1
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora des Spreewaldes : II. Die Myxo- und Makromyceten (Ascomycetes, Basidiomycetes) im Bereich des Neuendorfer Sees (Biosphärenreservat Spreewald) ; Teil 2
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beiträge zur Pilzflora des Spreewaldes : III. Die phytoparasitischen Pilze im Bereich des Neuendorfer Sees (Biosphärenreservat Spreewald)
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Kümmerling, Heidi
A1  - Rätzel, Stefan
A1  - Otte, Volker
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg : eine Anregung zur floristischen Arbeit
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Otte, Volker
A1  - Rätzel, Stefan
A1  - Kummer, Volker
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg III
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Otte, Volker
A1  - Rätzel, Stefan
A1  - Sipman, Harri J. M.
A1  - Kummer, Volker
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg V
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Otte, Volker
A1  - Rätzel, Stefan
A1  - Kummer, Volker
A1  - De Bruyn, Uwe
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg VI
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Rätzel, Stefan
A1  - Kummer, Volker
A1  - Otte, Volker
A1  - Sipman, Harri J. M
T1  - Bemerkenswerte Flechtenfunde aus Brandenburg VII
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Bruyun, U.
A1  - Litterski, B.
A1  - Kummer, Volker
T1  - Bemerkenswerte Funde lichenisierter und lichenicoler Pilze in Mecklenburg-Vorpommern
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Lamellenpilzfunde aus Brandenburg
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pflanzenarten des Spreewaldes : 1. Wasserpflanzen ; Teil 1
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pflanzenarten des Spreewaldes : 1. Wasserpflanzen ; Teil 2
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pflanzenarten des Spreewaldes : 2. Moorflanzen ; Teil 1
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pflanzenarten des Spreewaldes : 2. Moorflanzen ; Teil 2
Y1  - 2008
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf den Tagungen des Botanischen Vereins in Linowsee und Finowfurth
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Jage, Horst
T1  - Bemerkenswerte Pilzfunde auf der 33. Brandenburgischen Botanikertagung in Perleberg
Y1  - 2003
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf der 34. Brandenburgischen Botanikertagung in Ortrand
Y1  - 2004
SN  - 0724-3111 -
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf der 35. Brandenburgischen Botanikertagung in Storkow
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf der 36. Brandenburgischen Botanikertagung in Hohenspringe/Flaeming
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf der 37. Brandenburgischen Botanikertagung in Neuendorf bei Oranienburg
Y1  - 2007
SN  - 0945-4292
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde auf der 38. Brandenburgischen Botanikertagung in Groß Pinnow/Uckermark
Y1  - 2010
SN  - 9454-4292
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bemerkenswerte Pilzfunde aus dem nordwestlichen Unterspreewald-Randgebiet
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Beobachtungen zu Pithya cupressina andchloroscypha alutipes
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Miersch, Jürgen
T1  - Bericht über eine einwöchige mykologische Exkursion nach Gotland im Herbst 1999
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Botanisch Bemerkenswertes aus der Potsdamer Umgebung : eine Auswahl
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Botanische Exkursion ins Wolfsbruch bei Alt Töplitz
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Scherber, Christoph
A1  - Eisenhauer, Nico
A1  - Weisser, Wolfgang W.
A1  - Schmid, Bernhard
A1  - Voigt, Winfried
A1  - Fischer, Markus
A1  - Schukze, Ernst-Detlef
A1  - Roscher, Christiane
A1  - Weigelt, Alexandra
A1  - Allan, Eric
A1  - Beßler, Holger
A1  - Bonkowski, Michael
A1  - Buchmann, Nina
A1  - Buscot, François
A1  - Clement, Lars W.
A1  - Ebeling, Anne
A1  - Engels, Christof
A1  - Halle, Stefan
A1  - Kertscher, Ilona
A1  - Klein, Alexandra-Maria
A1  - Koller, Robert
A1  - König, Stephan
A1  - Kowalski, Esther
A1  - Kummer, Volker
A1  - Kuu, Annely
A1  - Lange, Markus
A1  - Lauterbach, Dirk
T1  - Bottom-up effects of plant diversity on multitrophic interactions in a biodiversity experiment
Y1  - 2010
UR  - http://www.nature.com/nature/journal/v468/n7323/full/nature09492.html
SN  - 0028-0836
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Bürgert sich Gypsophila perfoliata in Brandenburg ein?
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Cochlearia danica nun auch in Brandenburg
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Der Abriß der Neuen Schänke
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Der Große Burgwall bei Havelberg : ein bemerkenswerter Pilzstandort
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Der Lübbener Rudolf Marloth (1855-1931) als Botaniker in Südafrika - eine Lebensskizze
Y1  - 2006
ER  - 
TY  - JOUR
A1  - Körner, Sabine
A1  - Seitz, Birgit
A1  - Jentsch, Helmut
A1  - Kummer, Volker
T1  - Der Spreewald : Lebensraum für gefährdete Pflanzenarten
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Raetzel, Stefan
A1  - Kummer, Volker
T1  - Die Erforschung der in Brandenburg vorkommenden Kryptogamen nach 1945 (Moose, Pilze)
Y1  - 2010
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Die Exkursion zum Gollwitzer Havelufer
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Burkart, Michael
T1  - Die Flora der Stromtalwiesen an der unteren Havel und andere botanische Besonderheiten
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Die Krausnicker Schule zu Beginn des 19. Jahrhunderts : ein Beitrag zur Gechichte des Unterspreewaldortes
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Die Salzbunge (Samolus valerandi) im Bornimer Schlangenbruch wieder gefunden
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Kühling, Matthias
A1  - Bork, Hans-Rudolf
A1  - Kummer, Volker
T1  - Die Wüste Atacama
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Thines, Marco
A1  - Kummer, Volker
T1  - Diversity and species boundaries in floricolous downy mildews
JF  - Mycological progress : international journal of the German Mycological Society
N2  - Floricolous downy mildews are a monophyletic group of members of the genus Peronospora (Oomycota, Peronosporales). These downy mildews can be found on a variety of families of the Asteridae, including Asteraceae, Campanulaceae, Dipsacaceae, Lamiaceae, and Orobanchaceae. With the exception of Peronospora radii, which can also cause economically relevant losses, sporulation usually takes place only on floral parts of their hosts. However, only very few specimens of these mostly inconspicuous downy mildews have so far been included in molecular phylogenies. Focusing on Lamiaceae, we have investigated multiple specimens of floricolous downy mildews for elucidating species boundaries and host specificity in this group. Based on both mitochondrial and nuclear loci, it became apparent that phylogenetic lineages in the Lamiaceae seem to be host genus specific and significant sequence diversity could be found between lineages. Based on distinctiveness in both phylogenetic reconstructions and morphology, the downy mildew on flowers of Stachys palustris is introduced as a new species, Peronospora jagei sp. nov., which can be morphologically distinguished from Peronospora stigmaticola by broader and shorter conidiospores. The diversity of the floricolous down mildews might be higher than previously assumed, although specimens from a much broader set of samples will be needed to confirm this view.
KW  - cox2
KW  - Internal transcribed spacer
KW  - Peronosporaceae
KW  - Phylogeny
Y1  - 2013
U6  - https://doi.org/10.1007/s11557-012-0837-7
SN  - 1617-416X
VL  - 12
IS  - 2
SP  - 321
EP  - 329
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Dr. Dieter Benkert zum 70. Geburtstag
Y1  - 2004
SN  - 0724-3111 -
ER  - 
TY  - JOUR
A1  - Fischer, Wolfgang
A1  - Kummer, Volker
T1  - Ein Beitrag zur Pilzflora der Höllenberge bei Langengrassau
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Ein Beitrag zur Pilzflora des Görlsdorfer Waldes
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Ein kurzer Einblick in die Vielfalt unserer heimischen Pilze
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Ein kurzer Einblick in die Vielfalt unserer heimischen Pilze II
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Ein Vorkommen von Draba muralis L. im Potsdamer Stadtgebiet
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Ein Vorkommen von Glyceria striata im Springbruch bei Potsdam
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Eine botanische Wanderung rund um den Neuendorfer See
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Einige Aspekte der Pilzflora im Bol'soj Thac-Gebiet (NW-Kaukasus)
N2  - Some aspects of the fungal flora in the Bol'Üoj Tha; area (NW-Caucasus) - During an excursion to the Bol'soj Tha; area in north-western Caucasus in the late summer of 1998 a number of mycological observations were made. 111 macrofungi species (30 ascomycetes, 81 basidiomycetes), 16 myxomycetes and 42 phytoparasitic fungi (15 Erysiphales, 27 Uredinales) were registered. The majority of the recorded macromycetes were decomposers of dead stems and logs of different trees and shrubs, especially of the dominating tree species Fagus orientalis and Abies nordmanniana. Bondarzewia montana, Hericium alpestre and Phellinus hartigii are typical colonisers of old Abies trunks and therefore of special interest. They were recorded several times, especially in the primeval forests of the excursion area. Some of the collected taxa like Daldinia petriniae, Hypoxylon cercidicola, H. liviae, Ophiostoma polyporicola, Pezoloma marchantiae, Ramsbottomia macracantha, Symphyosyria angelicae, Auriporia aurulenta, Flagelloscypha pilatii, Hymenochaete carpatica, Marasmius cf. rhododendrorum and Pellidiscus pallidus are discussed in detail. Some of the recorded taxa are probably new for the western Caucasus and in some cases also for Russia.
Y1  - 2007
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Einige interessante Neubürger der Potsdamer Umgebung
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
A1  - Jentsch, Helmut
T1  - Elodea nuttallii (PLANCH.), St, Johan nun auch in Brandenburg
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Ale-Agha, Nosratollah
A1  - Bolay, Adrien
A1  - Braun, Uwe
A1  - Jage, Horst
A1  - Kummer, Volker
A1  - Lebeda, Ales
A1  - Piatek, Marcin
A1  - Shin, Hyeon-Dong
A1  - Zimmermannova-Pastircakova, Katarina
T1  - Erysiphe catalpae and E. elevata in Europe
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Bolay, Adrien
A1  - Braun, Uwe
A1  - Delhey, Rolf
A1  - Kummer, Volker
A1  - Piatek, Marcin
A1  - Wolczanska, Agata
T1  - Erysiphe deutziae - a new epidemic spread in Europe
N2  - Erysiphe deutziae (Bunkina) U. Braun & S. Takam. is powdery mildew fungus that is currently spreading in Europe. The anamorph of this species has been found in France, Germany, Poland and Switzerland on Deutzia sp. (cult.), Deutzia x magnifica (Lemoine) Rehder and Deutzia scabra Thunb. The morphology, taxonomy and worldwide distribution of Erysiphe deutziae are described, illustrated and discussed
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Bolay, Adrien
A1  - Braun, Uwe
A1  - Delhey, Rolf
A1  - Kummer, Volker
A1  - Piatek, Marcin
A1  - Wolczanska, Agata
T1  - Erysiphe deutziae : a new epidemic spread in Europe
N2  - Erysiphe deutziae (Bunkina) U. Braun & S. Takam. is powdery mildew fungus that is currently spreading in Europe. The anamorph of this species has been found in France, Germany, Poland and Switzerland on Deutzia sp. (cult.), Deutzia x magnifica (Lemoine) Rehder and Deutzia scabra Thunb. The morphology, taxonomy and worldwide distribution of Erysiphe deutziae are described, illustrated and discussed
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Kasparz, Sven
A1  - Kummer, Volker
T1  - Exkursionsbericht "Exkursion zu den Lübbener Pfaffenbergen und Hartmannsdorfer Wiesen" am 20.07.2002
Y1  - 2003
SN  - 0724-3111 -
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Exkursionsbericht "Exkursion zum Südufer des Dolgener Sees und zum Schwarzen Luch bei Groß Leuthen" am 05.08.2000
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Exkursionsbericht "Neuendorfer Se/Unterspreewald" am 31.08.1996
Y1  - 1996
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Farbenfroh und vergänglich
Y1  - 1997
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Flora und Vegetation im Bereich des Neuendorfer Sees (Biosphärenreservat Spreewald)
Y1  - 1998
ER  - 
TY  - JOUR
A1  - Burkart, Michael
A1  - Kummer, Volker
A1  - Fischer, Wolfgang
T1  - Floristische Neu- und Wiederfunde im Gebiet der Unteren Havel
Y1  - 1995
ER  - 
TY  - JOUR
A1  - Jentsch, Helmut
A1  - Kummer, Volker
T1  - Floristische Neufunde aus dem Spreewald
Y1  - 1994
ER  - 
TY  - JOUR
A1  - Grosse-Brauckmann, Helga
A1  - Kummer, Volker
T1  - Fünf bemerkenswerte Funde corticioider Pilze aus Deutschland
Y1  - 2004
UR  - http://www3.interscience.wiley.com/cgi-bin/fulltext/108563946/PDFSTART
SN  - 0014-8962
ER  - 
TY  - JOUR
A1  - Rottstock, Tanja
A1  - Joshi, Jasmin Radha
A1  - Kummer, Volker
A1  - Fischer, Markus
T1  - Higher plant diversity promotes higher diversity of fungal pathogens, while it decreases pathogen infection per plant
JF  - Ecology : a publication of the Ecological Society of America
N2  - Fungal plant pathogens are common in natural communities where they affect plant physiology, plant survival, and biomass production. Conversely, pathogen transmission and infection may be regulated by plant community characteristics such as plant species diversity and functional composition that favor pathogen diversity through increases in host diversity while simultaneously reducing pathogen infection via increased variability in host density and spatial heterogeneity. Therefore, a comprehensive understanding of multi-host multi-pathogen interactions is of high significance in the context of biodiversity-ecosystem functioning. We investigated the relationship between plant diversity and aboveground obligate parasitic fungal pathogen ("pathogens" hereafter) diversity and infection in grasslands of a long-term, large-scale, biodiversity experiment with varying plant species (1-60 species) and plant functional group diversity (1-4 groups). To estimate pathogen infection of the plant communities, we visually assessed pathogen-group presence (i.e., rusts, powdery mildews, downy mildews, smuts, and leaf-spot diseases) and overall infection levels (combining incidence and severity of each pathogen group) in 82 experimental plots on all aboveground organs of all plant species per plot during four surveys in 2006.
 Pathogen diversity, assessed as the cumulative number of pathogen groups on all plant species per plot, increased log-linearly with plant species diversity. However, pathogen incidence and severity, and hence overall infection, decreased with increasing plant species diversity. In addition, co-infection of plant individuals by two or more pathogen groups was less likely with increasing plant community diversity. We conclude that plant community diversity promotes pathogen-community diversity while at the same time reducing pathogen infection levels of plant individuals.
KW  - biodiversity
KW  - ecosystem processes
KW  - ecosystem services
KW  - grasslands
KW  - multi-host-multi-pathogen interactions
KW  - obligate parasitic fungal pathogens
KW  - pathogen diversity
KW  - pathogen proneness
KW  - pathogen transmission
KW  - plant functional types
Y1  - 2014
SN  - 0012-9658
SN  - 1939-9170
VL  - 95
IS  - 7
SP  - 1907
EP  - 1917
PB  - Wiley
CY  - Washington
ER  - 
TY  - JOUR
A1  - Kühling, Matthias
A1  - Kummer, Volker
T1  - Im Land der Araukarier
Y1  - 1999
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  - Kummer, Volker
T1  - Korrekturen und Ergänzungen zur Pilzflora des Unteren Haveltales.-
Y1  - 2001
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  - 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  - 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  - Literaturhinweis
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Loweomyces fractipes im Unterspreewald gefunden
Y1  - 1998
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  - 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  - Kummer, Volker
T1  - Neue Erkenntnisse über den Ursprung der Krausnicker Kirche und ihre Einordnung in die damalige Kirchenbauentwicklung
Y1  - 1998
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  - Notizen zu einem Vorkommen des Roten Waldvögeleins bei Falkensee
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Notizen zur Pilzflora des Lübbener " Hains"
Y1  - 2000
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Notizen über den Amtsgarten zu Krausnick
Y1  - 1993
ER  - 
TY  - JOUR
A1  - Kummer, Volker
T1  - Notizen über einige Adventivpflanzenfunde auf dem Krausnicker Müllplatz
Y1  - 1994
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  -