Originalarbeiten

172Krupp A, Heller A & Spring O (2019) Development of phloem conncetion between the parasitic plant Orobanche cumana and its host sunflower. Protoplasma doi.org/10.1007/s00709-019-01393-z
171Spring O (2019) Spreading and global pathogenic diversity of sunflower downy mildew – Review. Plant Protect. Sci. 55: 149 – 158
170Spring O, Gómez Zeledón J, Hadziabdic D, Trigiano RN, Thines M & Lebeda A (2018) Biological characteristics and assessment of virulence diversity in pathosystems of economically important biotrophic Oomycetes. Critical Reviews in Plant Sciences 37 (6): 439 – 495
169Gómez Zeledón J & Spring O (2018) Up-regulated RxLR effector genes of Plasmopara viticola in synchronized host-free stages and infected leaves of hosts with different susceptibility. Fungal Biology 122 (12): 1125 – 1133
168Gherbawy Y, Hussein MA, Runge F & Spring O (2018) Molecular characterization of Alternaria alternata population isolated from Upper Egyptian tomato fruits. Journal of Phytopathology, doi.org/10.1111/jph.12752
167Frey M, Schmauder K, Pateraki I & Spring O (2018) Biosynthesis of eupatolide - A metabolic route for sesquiterpene lactone formation involving the P450 enzyme CYP71DD6. ACS Chemical Biology 13: 1536 – 1543
166Fröschle M, Horn H & Spring O (2018) Characterization of Jatropha curcas honeys originating from the southern highlands of Madagascar. LWT - Food Science and Technology 93: 525 – 533
165Spring O & Zipper R (2017) New highly aggressive pathotype 354 of Plasmopara halstedii in German sunflower fields. Plant Protect doi: 10.17221/99/2017-PPS
164Silva DB, Aschenbrenner AK, Lopes NP & & Spring O (2017) Direct analyses of secondary metabolites by mass spectrometry imaging (MSI) from sunflower (Helianthus annuus L.) trichomes. Molecules 22: 774
163Fröschle M, Horn H & Spring O (2017) Effects of the cytokinins 6-benzyladenine and forchlorfenuron on fruit-, seed- and yield parameters according to developmental stages of flowers of the biofuel plant Jatropha curcas L. (Euphorbiaceae). Plant Growth Regulation 81 (2): 293 – 303
162Gómez Zeledón J, Grasse W, Runge F, Land A & Spring O (2017) TaqMan qPCR pushes boundaries for the analysis of millennial wood. Journal of Archaeological Science 79: 53 – 61
161Grasse W & Spring O (2017) ssRNA viruses from biotrophic Oomycetes form a new phylogenetic group between Nodaviridae and Tombusviridae. Archives of Virology 162(5): 1319 – 1324
160Gómez Zeledón J, Kaiser M & Spring O (2017) Exploring host-pathogen combinations for compatible and incompatible reactions in grapevine downy mildew. European Journal of Plant Pathology 149(1)
159Apel L, Kammerer DR, Stintzing FC & Spring O (2017) Comparative metabolite profiling of triterpenoid saponins and flavonoids in flower color mutations of Primula veris L. International Journal of Molecular Sciences 18 (1): 153
158Spring O & Zipper R (2016) Asexual recombinants of Plasmopara halstedii pathotypes from dual infection of sunflower. PLoS One 11 (12): e0167015
157Bombo AB, Appezzato-da-Glória B, Aschenbrenner AK & Spring O (2016) Capitate glandular trichomes in Aldama discolor (Heliantheae - Asteraceae): Morphology, metabolite profile and sesquiterpene biosynthesis. Plant Biology 18 (3): 455 – 462
156Aschenbrenner AK, Kwon M, Conrad J, Ro DK, Spring O (2016) Identification and characterization of two bisabolene synthases from linear glandular trichomes of sunflower (Helianthus annuus L., Asteraceae). Phytochemistry 124: 29 – 37
155Amrehn E, Aschenbrenner AK, Heller A & Spring O (2015) Localization of sesquiterpene lactone biosynthesis in cells of capitate glandular trichomes of Helianthus annuus (Asteraceae). Protoplasma 253 (2): 447 – 455
154Spring O, Pfannstiel J, Klaiber I, Conrad J, Beifuß U, Apel L, Aschenbrenner AK & Zipper R (2015) The nonvolatile metabolome of sunflower linear glandular trichomes. Phytochemistry 119: 83 – 89
153Sharma R, Xia X, Cano LM, (...) Spring O, Zipper R, (…) & Thines M (2015) Genome analyses of the sunflower pathogen Plasmopara halstedii provide insights into effector evolution in downy mildews and Phytophthora. BMC Genomics 16 (1): 741
152Prasifka JR, Spring O, Conrad J, Cook LW, Palmquist DE & Foley ME (2015) Sesquiterpene lactone composition of wild and cultivated sunflowers and biological activity against an isect pest. Journal of Agricultural and Food Chemistry 63 (16): 4042 – 4049
151Frey M & Spring O (2015) Molecular traits to elucidate the ancestry of Helianthus x multiflorus. Biochemical Systematics and Ecology 58: 51 – 58
150Grasse W & Spring O (2015) Occurrence and genetic diversity of the Plasmopara halstedii virus in sunflower downy mildew populations of the world. Fungal Biology 119 (2-3): 170 – 178
149Krupp A, Rücker E, Heller A & Spring O (2015) Seed structure characteristics of Orobanche cumana populations. Helia 38 (62): 1 – 14
148Lava SS, Zipper R & Spring O (2015) Sunflower white blister rust – Host specificity and fungicide effects on infectivity and early infection stages. Crop Protection 67: 214 – 222
147Aschenbrenner AK, Amrehn E, Bechtel L & Spring O (2015) Trichome differentiation on leaf primordia of Helianthus annuus (Asteraceae): Morphology, gene expression and metabolite profile. Planta 241 (4): 837 – 846
146Derevnina L, Chin-Wo-Reyes S, Martin F, (...), Spring O & Michelmore R (2015) Genome sequence and architecture of the tobacco downy mildew pathogen Peronospora tabacina. Molecular Plant-Microbe Interactions 28 (11): 1198 – 1215
145Amrehn E, Heller A & Spring O (2014) Capitate glandular trichomes of Helianthus annuus (Asteraceae): Ultrastructure and cytological development. Protoplasma 251 (1): 161 – 167
144Aschenbrenner AK, Horakh S & Spring O (2013) Linear glandular trichomes of Helianthus (Asteraceae) - Morphology, localization, metabolite activity and occurrence. AoB Plants 5: plt028
143Sharma R, Mishra B, Runge F & Thines M (2014) Gene loss rather than gene gain is associated with a host jump from monocots to dicots in the smut fungus Melanopsichium pennsylvanicum. Genome Biology and Evolution 6 (8): 2034 – 2049
142Cohen Y, Rubin Avia E, Galperin M, Ploch S, Runge F & Thines M (2014) Seed transmission of Pseudoperonospora cubensis. PloS One 9 (10): e109766
141Lava SS, Heller A & Spring O (2013) Oospores of Pustula helianthicola in sunflower seeds and their role in the epidemiology of white blister rust. IMA Fungus 4 (2): 251 – 258
140Gómez Zeledón J, Zipper R & Spring O (2013) Assessment of phenotypic diversity of Plasmopara viticola on Vitis genotypes with different resistance. Crop Protection 54: 221 – 228
139Raupp F & Spring O (2013) New sesquiterpene lactones from sunflower root exudate as germination stimulants for Orobanche cumana. Journal of Agricultural and Food Chemistry 61: 10481 – 10487
138Sukanya SL & Spring O (2013) Influence of temperature and ultra-violet light on viability and infectivity of Peronospora tabacina sporangia. Crop Protection 51: 14 – 18
137Grasse W, Zipper R, Totska M & Spring O (2013) Plasmopara halstedii virus causes hypovirulence in Plasmopara halstedii, the downy mildew pathogen of the sunflower. Fungal Genetics and Biology 57: 42 – 47
136Spring O, Hammer TR, Zipper R & Billenkamp N (2013) Population dynamics in tobacco blue mold incidences as a consequence of pathogen control and virulence performance of Peronospora tabacina phenotypes. Crop Protection 45: 76 – 82
135Mirzaee MR, Ploch S, Runge F, Telle S, Nigrelli L & Thines M (2013) A new presumably widespread species of Albugo parasitic to Strigosella spp. (Brassicaceae). Mycological Progress 12 (1): 45 – 52
134Runge F, Ndambi B & Thines M (2012) Which morphological characteristics are most influenced by the host matrix in downy mildews? A case study in Pseudoperonospora cubensis. PLoS ONE 7 (11): e44863
133Lava SS & Spring O (2012) Homothallic sexual reproduction of Pustula helianthicola and germination of oospores. Fungal Biology 116 (9): 976 – 984
132Quesada-Ocampo LM, Granke LL, Olsen J, Gutting HC, Runge F, Thines M, Lebeda A & Hausbeck MK (2012) The genetic structure of Pseudoperonospora cubensis populations. Plant Disease 96 (10): 1459 – 1470
131Trigiano RN, Wadl PA, Dean D, Hadziabdic D, Scheffler BE, Runge F, Telle S, Thines M, Ristaino J & Spring O (2012) Ten polymorphic microsatellite loci identified from a small insert genomic library for Peronospora tabacina. Mycologia 104 (3): 633 – 640
130Runge F & Thines M (2012) Re-evaluation of host specificity of the closely related species Pseudoperonospora humuli and P. cubensis. Plant Disease 96: 55 – 61
129Rost C & Thines M (2012) A new species of Pustula (Oomycetes, Albuginales) is the causal agent of sunflower white rust. Mycological Progress 11 (2): 351 – 359
128Runge F, Telle S, Ploch S, Savory E, Day B, Sharma R & Thines M (2011) The inclusion of downy mildews in a multi-locus-dataset and its reanalysis reveals high degree of paraphyly in Phytophthora. IMA Fungus 2: 163 – 171
127Quesada-Ocampo L, Granke L, Olsen J, Gutting H, Runge F, Thines M, Lebeda A & Hausbeck M (2011) The genetic structure of Pseudoperonospora cubensis global populations. Phytopathology 101: 149
126Spring O, Thines M, Wolf S & Zipper R (2011) PCR-based detection of sunflower white blister rust (Pustula helianthicola C. Rost & Thines) in soil samples and asymptomatic host tissue. European Journal of Plant Pathology 131: 519 – 527
125Ikezawa N, Göpfert JC, Nguyen DT, Kim SU, O’Maille PE, Spring O & Ro DK (2011) Lettuce costunolide synthase (CYP71BL2) and its homolog (CYP71BL1) from sunflower catalyze distinct regio- and stereoselective hydroxylations in sesquiterpene lactone metabolism. Journal of Biological Chemistry 286 (24): 21601 – 21611
124Heller-Dohmen M, Göpfert JC, Pfannstiel J & Spring O (2011) The nucleotide sequence and genome organization of Plasmopara halstedii virus. Virology Journal 8: 123
123Ploch S, Telle S, Choi YJ, Cunnington JH, Priest M, Rost C, Shin HD & Thines M (2011) The molecular phylogeny of the white blister rust genus Pustula reveals a case of underestimated biodiversity with several undescribed species on ornamentals and crop plants. Fungal Biology 115 (3): 214 – 219
122Viranyi F & Spring O (2011) Advances in sunflower downy mildew research. European Journal of Plant Pathology 129 (2): 207 – 220
121Runge F, Choi YJ & Thines M (2011) Phylogenetic investigations in the genus Pseudoperonospora reveal overlooked species and cryptic diversity in the P. cubensis species cluster. European Journal of Plant Pathology 129 (2): 135 – 146

120

Runge F & Thines M (2011) Host matrix has major impact on the morphology of Pseudoperonospora cubensis. European Journal of Plant Pathology 129 (2): 147 – 156
119Choi YJ, Thines M, Runge F, Hong SB, Telle S & Shin HD (2011) Evidence for high degrees of specialisation, evolutionary diversity, and morphological distinctiveness in the genus Bremia. Fungal Biology 115 (2): 102 – 111
118Ploch S, Choi YJ, Rost C, Shin HD, Schilling E & Thines M (2010) Evolution of diversity in Albugo is driven by high host specificity and multiple speciation events on closely related Brassicaceae. Molecular Phylogenetics and Evolution 57 (2): 812 – 820
117Oliva R, Win J, Raffaele S, Boutemy L, Bozkurt TO, Chaparro-Garcia A, Segretin ME, (...), Thines M, (…) & Kamoun S (2010) Recent developments in effector biology of filamentous plant pathogens. Cellular Microbiology 12 (6): 705 – 715
116Nguyen DT, Göpfert JC, Ikezawa N, MacNevin G, Kathiresan M, Conrad J, Spring O & Ro DK (2010) Biochemical conservation and evolution of germacrene A oxidase in Asteraceae. Journal of Biological Chemistry 285 (22): 16588 – 16598
115Jung S, Fladerer C, Brändle F, Madlung J, Spring O & Nordheim A (2010) Identification of a novel Plasmopara halstedii elicitor protein combining de novo peptide sequencing algorithms and RACE-PCR. Proteome Science 8: 24
114Thines M, Runge F, Telle S & Voglmayr H (2010) Phylogenetic investigations in the downy mildew genus Bremia reveal several distinct lineages and a species with a presumably exceptional wide host range. European Journal of Plant Pathology 128 (1): 81 – 89
113Göpfert JC, Bülow AK & Spring O (2010) Identification and functional characterization of a new sunflower germacrene A synthase (HaGAS3). National Product Communication 5 (5): 709 – 715
112Choi YJ, Shin HD & Thines M (2009) The host range of Albugo candida extends from Brassicaceae through Cleomaceae to Capparaceae. Mycological Progress 8 (4): 329 – 335
111Schornack S, Huitema E, Cano LM, Bozkurt TO, Oliva R, Van Damme M, Schwizer S, (...), Thines M & Kamoun S (2009) Ten things to know about oomycete effectors. Molecular Plant Pathology 10 (6): 795 – 803

110

Choi YJ, Shin HD & Thines M (2009) Two novel Peronospora species are associated with recent reports of downy mildew on sages. Mycological Research 113 (12): 1340 – 1350
109Haas BJ, Kamoun S, Zody MC, Jiang RHY, Handsaker RE, Cano LM, Grabherr M, (...), Thines M, (…) & Nusbaum C (2009) Genome sequence and analysis of the Irish potato famine pathogen Phytophthora infestans. Nature 461 (7262): 393 – 398
108Göpfert JC, MacNevin G, Ro DK & Spring O (2009) Identification, functional characterization and developmental regulation of sesquiterpene synthases from sunflower capitate glandular trichomes. BMC Plant Biology 9: 86
107Thines M, Choi YJ, Kemen E, Ploch S, Holub EB, Shin HD & Jones JDG (2009) A new species of Albugo parasitic to Arabidopsis thaliana reveals new evolutionary patterns in white blister rusts (Albuginaceae). Persoonia 22: 123 – 128
106Heller A & Thines M (2009) Evidence of the importance of enzymatic digestion of epidermal walls during subepidermal sporulation and pustule opening in white blister rusts (Albuginaceae). Mycological Research 113 (6-7): 657 – 667
105Thines M (2009) Bridging the gulf: Phytophthora and downy mildews are connected by rare grass parasites. PLoS ONE 4 (3): e4790
104Spring O (2009) Transition of secondary to systemic infection of sunflower with Plasmopara halstedii - An underestimated factor in the epidemiology of the pathogen. Fungal Ecology 2 (2): 75 – 80
103Thines M, Telle S, Ploch S & Runge F (2009) Identity of the downy mildew pathogens of basil, coleus, and sage with implications for quarantine measures. Mycological Research 113 (5): 532 – 540
102Runge F & Thines M (2009) A potential perennial host for Pseudoperonospora cubensis in temperate regions. European Journal of Plant Pathology 123 (4): 483 – 486
101Zipper R, Hammer TR & Spring O (2009) PCR-based monitoring of recent isolates of tobacco blue mold from Europe reveals the presence of two genetically distinct phenotypes differing in fungicide sensitivity. European Journal of Plant Pathology 123 (3): 367 – 375
100Telle S & Thines M (2008) Amplification of cox2 (~620 bp) from 2 mg of up to 129 years old herbarium specimens, comparing 19 extraction methods and 15 polymerases. PLoS ONE 3 (10): e3584
99Choi YJ, Shin HD, Ploch S & Thines M (2008) Evidence for uncharted biodiversity in the Albugo candida complex, with the description of a new species. Mycological Research 112 (11): 1327 – 1334
98Heller-Dohmen M, Göpfert JC, Hammerschmidt R & Spring O (2008) Different pathotypes of the sunflower downy mildew pathogen Plasmopara halstedii all contain isometric virions. Molecular Plant Pathology 9 (6): 777 – 786
97Thines M, Göker M, Telle S, Ryley M, Mathur K, Narayana YD, Spring O & Thakur RP (2008) Phylogenetic relationships of graminicolous downy mildews based on cox2 sequence data. Mycological Research 112 (3): 345 – 351
96Komjati H, Bakonyi J, Spring O & Viranyi F (2008) Isozyme analysis of Plasmopara halstedii using cellulose-acetate gel electrophoresis. Plant Pathology 57 (1): 57 – 63
95Thines M, Göker M, Oberwinkler F & Spring O (2007) A revision of Plasmopara penniseti, with implications for the host range of the downy mildews with pyriform haustoria. Mycological Research 111 (12): 1377 – 1385
94Gobbin D, Bleyer G, Keil S, Kassemeyer HH & Gessler C (2007) Evidence for sporangial dispersal leading to a single infection event and a sudden high incidence of grapevine downy mildew. Plant Pathology 56 (5): 843 – 847
93Komjati H, Walcz I, Viranyi F, Zipper R, Thines M & Spring O (2007) Characteristics of a Plasmopara angustiterminalis isolate from Xanthium strumarium. European Journal of Plant Pathology 119: 421 – 428
92Schwekendiek A, Spring O, Heyerick A, Pickel B, Pitsch NT, Peschke F, De Keukeleire D & Weber G (2007) Constitutive expression of a grapevine stilbene synthase gene in transgenic hop (Humulus lupulus L.) yields high amounts resveratrol and its derivatives. Journal of Agriculture and Food Chemistry 55: 7002 – 7009
91Choi YJ, Shin HD, Hong SB & Thines M (2007) Morphological and molecular discrimination among Albugo candida materials infecting Capsella bursa-pastoris world-wide. Fungal Diversity 27: 11 – 34
90Thines M (2007) Use of scanning electron microscopy in downy mildews systematics. Advances in Downy Mildew Research, Vol. 3: 17 – 23
89Hammer TR, Thines M & Spring O (2007) Development of a transformation system for downy mildews. Advances in Downy Mildew Research, Vol. 3: 87 – 93
88Thines M (2007) Repeats in the ITS2 of Plasmopara species and their relevance for phylogenetic studies. Advances in Downy Mildew Research, Vol. 3: 31 – 35
87Spring O, Keil S & Zipper R (2007) Field monitoring reveals two genotypes of Peronospora tabacina. Advances in Downy Mildew Research, Vol. 3: 107 – 111
86Thines M (2007) A first molecular phylogeny for the graminicolous downy mildews. Advances in Downy Mildew Research, Vol. 3: 25 – 29
85Thines M (2007) Characterisation and phylogeny of repetitive elements giving rise to exceptional length of ITS2 in several downy mildew genera (Peronosporaceae). Fungal Genetics and Biology 44: 199 – 207
84Hammer TR, Thines M & Spring O (2007) Transient expression of gfp in the obligate biotrophic oomycete Plasmopara halstedii using electroporation and a mechanoperforation method. Plant Pathology 56 (1): 177 – 182
83Thines M, Zipper R & Spring O (2006) First report of Pustula tragopogonis, the cause of white rust on cultivated sunflower in Southern Germany. Plant Disease 90 (1): 110 – 110
82Heller-Dohmen M, Göpfert JC, Hammerschmidt R & Spring O (2006) Characteristics of the mycovirus in Plasmopara halstedii, the downy mildew pathogen of the sunflower (Helianthus annuus). Phytopathology 96: 47
81Thines M (2006) Evaluation of characters available from herbarium vouchers for the phylogeny of the downy mildew genera (Chromista, Peronosporales), with focus on scanning electron microscopy. Mycotaxon 97: 195 – 218
80Spring O, Zipper R & Heller-Dohmen M (2006) First report of metalaxyl resistant isolates of Plasmopara halstedii on cultivated sunflower in Germany. Journal of Plant Diseases and Protection 113 (5): 224
79Constantinescu O & Thines M (2006) Dimorphism of sporangia in Albuginales (Chromista, Peronosporomycetes). Sydowia 58: 178 – 190
78Göpfert JC, Conrad J & Spring O (2006) 5-Deoxynevadensin, a novel flavone in sunflower and aspects of biosynthesis during trichome development. Natural Products Communications 1 (11): 335 – 340
77Spring O & Zipper R (2006) Evidence for asexual genetic recombination in sunflower downy mildew, Plasmopara halstedii. Mycological Research 110 (6): 657 – 663
76Spring O, Bachofer M, Thines M, Riethmüller A, Göker M & Oberwinkler F (2006) Intraspecific relationship of Plasmopara halstedii isolates differing in pathogenicity and geographic origin based on ITS sequence data. European Journal of Plant Pathology 114: 309 – 315
75Thines M, Göker M, Spring O & Oberwinkler F (2006) A revision of Bremia graminicola. Mycological Research 110 (6): 646 – 656
74Thines M, Zipper R, Schäuffele D & Spring O (2006) Characteristics of Pustula tragopogonis (syn. Albugo tragopogonis) newly occurring on cultivated sunflower in Germany. Journal of Phytopathology 154: 88 – 92
73Schwekendiek A, Horlemann C, Spring O, Stanke M, Höhnle M & Weber G (2005) Hop (Humulus lupulus L.) transformation with stilbene synthase for increasing resistance against fungal pathogens. Acta Horticulture 668: 101 – 108
72Mahmoud AA, Ahmed AA, Al-Shihry SS & Spring O (2005) A new heterocyclic glucoside from the fruits of Xanthium pungens. Natural Product Research 19 (6): 585 – 589

71

Berim A, Spring O, Conrad J, Maitrejean M, Boland W & Petersen M (2005) Enhancement of lignan biosynthesis in suspension cultures of Linum nodiflorum by coronalon, indanoyl-isoleucine and methyl jasmonate. Planta 222 (5): 769 – 776

70

Thines M & Spring O (2005) A revision of Albugo (Chromista, Peronosporomycetes). Mycotaxon 92: 443 – 458
69

Thines M, Komjáti H & Spring O (2005) Exceptional length of ITS in Plasmopara halstedii is due to multiple repetitions in the ITS-2 region. European Journal of Plant Pathology 112 (4): 395 – 398

68

Constantinescu O, Voglmayr H, Fatehi J & Thines M (2005) Plasmoverna gen. nov., and the taxonomy and nomenclature of Plasmopara (Chromista, Peronosporales). Taxon 54 (3): 813 – 821

67

Spring O, Haas K, Lamla IM, Thurnhofer S & Vetter W (2005) The composition and taxonomic significance of fatty acid patterns in three white rust species: Albugo amaranthi, A. candida and A. tragopogonis (Peronosporales, Albuginaceae). Mycological Progress 4 (3): 179 – 184

66

Göpfert JC, Heil N, Conrad J & Spring O (2005) Cytological development and sesquiterpene lactone secretion in capitate glandular trichomes of sunflower. Plant Biology 7 (2): 148 –155

65

Keil SB & Spring O (2005) Fungizidtoleranz bei Isolaten von Peronospora tabacina im deutschen Tabakanbau der Saison 2003. Nachrichtenblatt des Deutschen Pflanzenschutzdienst 57: 25 – 28

64

Gonsior G, Buschmann H, Szinicz G, Spring O & Sauerborn J (2004) Induced resistance - an innovative approach to manage branched broomrape (Orobanche ramosa) in hemp and tobacco. Weed Science 52: 1050 – 1053

63

Spring O & Thines M (2004) On the necessity of new characters for classification and systematics of biotrophic Peronosporomycetes. Planta 219: 910 – 914

62

Spring O & Haas K (2004) Eicosapentaenoic acid, a possible marker for downy mildew contamination in sunflower seeds. Recent Advances in Downy Mildew Research Vol. 2: 241 – 248

61

Krauthausen HJ, Bauermann W & Spring O (2003) Metalaxyl Resistance of Peronospora tabacina in Germany. Nachrichtenblatt des Deutschen Pflanzenschutzdienst 55: 141 – 144

60

Spring O, Voglmayr H, Riethmüller A & Oberwinkler F (2003) Characterization of a Plasmopara isolate from Helianthus x laetiflorus based on cross infection, morphology, fatty acid and molecular phylogenetic data. Mycological Progress 2: 163 – 170

59

Spring O, Zipper R, Conrad J, Vogler B & Da Costa F (2003) Sesquiterpene lactones from glandular trichomes of Viguiera radula (Helianthinae; Asteraceae). Phytochemistry 62: 1185 – 1189

58

Brändle F & Spring O (2003) Pathogen-induzierte Stressreaktionen der Sonnenblume. Gesunde Pflanzen 55: 21 – 27 

57

Spring O & Haas K (2002) The fatty acid composition of Plasmopara halstedii and its taxonomic significance. European Journal of Plant Pathology 108: 263 – 267

56

Intelmann F & Spring O (2002) Analysis of total DNA by minisatellite and simple-sequence repeat primers for the use of population studies in Plasmopara halstedii. Canadian Journal of Microbiology 48: 555 – 559

55

Ahmed AA, Mohamed AY, Spring O, Bierner MW & Mabry TJ (2002) Sesquiterpene lactones and flavonoids from Hymenoxys jamesii (Asteraceae) and their systematic significance. Biochemical Sysematics and Ecology 30: 487 – 491

54

Spring O (2001) Nonsystemic infections of sunflower with Plasmopara halstedii and their putative role in the istribution of the pathogen. Journal of Plant Diseases and Protection 108: 329 – 336

53

Ahmed AA, Mahmoud AA, Ahmed UM, Tzakou O, Couladis M, Spring O & Mabry TJ (2001) Clerodane diterpenoids from Teucrium divaricatum Heldr. ssp. divaricatum. Revista Latinoamericana de Quimica 29: 23 – 25

52

Da Costa F, Schorr K, Arakawa N, Schilling EE & Spring O (2001) Intraspecific variation in the chemistry of glandular trichomes of two Brazilian Viguiera species (Heliantheae, Asteraceae). Journal of the Brazilian Chemical Society 12: 403 – 407

51

Rozynek B & Spring O (2001) Leaf disk inoculation, a fast and precise test for the screening of metalaxyl tolerance in sunflower downy mildew. Journal of Phytopathology 149 (6): 309 – 312

50

Spring O, Zipper R, Reeb S, Vogler B & Da Costa FB (2001) Sesquiterpene lactones from glandular trichomes of Viguiera quinqueremis (Heliantheae, Asteraceae). Phytochemistry 57: 267 – 272

49

Vogler B & Spring O (2000) Application of LC-NMR measurements in phytochemical studies. Recent Research Developments in Phytochemistry, Vol 4: 207 – 222

48

Spring O, Zipper R, Klaiber I, Reeb S & Vogler B (2000) Sesquiterpene lactones in Viguiera eriophora and Viguiera puruana (Heliantheae, Asteraceae). Phytochemistry 55: 255 – 261

47

Rozynek B & Spring O (2000) Pathotypes of sunflower downy mildew in southern parts of Germany. Helia 23: 27 – 34

46

Spring O (2000) Homothallic sexualreproduction in Plasmopara halstedii, the downy mildew of sunflower. Helia 23: 19 – 26

45

Spring O & Zipper R (2000) Isolation of sunflower downy mildew, Plasmopara halstedii, and microscopical studies on oospore germination. Journal of Phytopathology 148: 227 – 231

44

Spring O (2000) Chemotaxonomy based on metabolites from glandular trichomes. Advances in Botanical Research 31: 153 – 174

43

Spring O, Zipper R, Vogler R, Callegari Lopez JL, Vichnewski W, Dias DA & Cunha WR (1999) Sesquiterpene Lactones in Blainvillea rhomboidea (Heliantheae, Asteraceae). Phytochemistry 52: 79 – 85

42

Spring O, Heil N & Eliasson U (1999) Chemosystematical studies on Scalesia (Asteraceae). Biochemical Systematics and Ecology 27 (3): 277 – 288

41

Ali AA, Mohamed MH, Kamel MS, Fouad MA & Spring O (1998) Studies on Securigera securidacea seeds, an antidiabetic Egyptian folk medicine. Die Pharmazie 53: 710 – 715

40

Spring O, Rozynek B & Zipper R (1998) Single spore infections with sunflower downy mildew. Journal of Phytopathology 146: 577 – 579

39

Spring O, Heil N & Vogler B (1997) Sesquiterpene lactones and Flavanones in Scalesia species (Heliantheae; Asteraceae). Phytochemistry 44: 1369 – 1373

38

Buschmann H & Spring O (1997) Sesquiterpene lactones of three Heliomeris species (Heliantheae: Asteraceae). Phytochemistry 44: 969 – 972

37

Heller A, Rozynek B & Spring O (1997) Cytological and physiological reasons for the latent type of infection in sunflower caused by Plasmopara halstedii. Journal of Phytopathology 145: 441 – 445

36

Spring O, Rozynek B & Zipper R (1997) Leaf disk inoculation - a useful tool for selecting infections of sunflower downy mildew at low inoculum concentration, but inappropriate to pathotype characterization. Journal of Phytopathology 145: 189 – 191

35

Spring O & Buschmann H (1996) A chemotaxonomical survey of sesquiterpene lactones in the Helianthinae. In: Hind, D.J.N. (ed.). Proceedings of the Interational Compositae Conference, Kew 1994 Vol. 1, Systematics, pp. 307 – 316

34

Ahmed AA, Spring O, Abd El-Razek MH, Hussein NS & Mabry TJ (1995) Sesquiterpene lactones and other constituents from Hymenoxys richardsonii and H. subintegra. Phytochemistry 39: 1127 – 1131

33

Spring O, Buschmann H, Vogler B, Schilling EE, Spraul M & Hoffmann M (1995) Sesquiterpene lactone chemistry of Zaluzania grayana from on-line LC-NMR measurements. Phytochemistry 39: 609 – 612

32

Benz A & Spring O (1995) Identification and characterization of an auxin-degrading enzyme in downy mildew infected sunflower. Physiological and Molecular Plant Pathology 46: 163 – 175

31

Buschmann H & Spring O (1995) Sesquiterpene lactones as a result of interspecific hybridization in Helianthus species. Phytochemistry 39: 367 – 371

30

Spring O, Miltner F & Gulya TJ (1994) New races of sunflower downy mildew (Plasmopara halstedii) in Germany. Journal of Phytopathology 142: 241 – 244

29

Spring O, Zitterell-Haid B, Birner M, Gao F & Mabry TJ (1994) Chemistry of glandular trichomes in Hymenoxys and related genera. Biochemical Systematics and Ecology 22: 171 – 195

28

Spring O (1993) Falscher Mehltau gefährdet Sonnenblumen. Naturwissenschaftliche Rundschau 46: 281 – 282

27

Buschmann H & Spring O (1993) Impact of interspecific hybridization on sesquiterpene lactone patterns of Helianthus species. Planta Medica 59: A579

26

Spring O (1993) Falscher Mehltau auf dem Vormarsch. Top Agrar 3/93, 22

25

Spring O, Panero JL & Schilling EE (1992) Chemotaxonomic Analysis of Papppobolus (Asteraceae: Heliantheae). Biochemical Systematics and Ecology 20: 671 – 684

24

Spring O, Rodon U & Macias FA (1992) Sesquiterpenes from noncapitate glandular trichomes of Helianthus annuus L. Phytochemistry 31: 1541 – 1544

23

Spring O, Benz A & Faust V (1991) Impact of downy mildew infection on the development and metabolism of sunflower. Zeitung für Pflanzenkrankheiten und Pflanzenschutz 98: 597 – 604

22

Spring O (1991) Trichome microsampling of sesquiterpene lactones for the use of systematic studies. Recent Advances in Phytochemistry 25: 319 – 345

21

Spring O, Vargas D & Fischer NH (1991) Sesquiterpene lactones and benzofurans in glandular trichomes of three Pappobolus species. Phytochemistry 30: 1861 – 1867

20

Spring O (1991) The sesquiterpene lactone chemistry of Helianthus tuberosus (Asteraceae). Phytochemistry 30: 519 – 522

19

Spring O & Schilling EE (1991) The sesquiterpene lactone chemistry of Helianthus sect. Atrorubentes (Asteraceae, Heliantheae). Part V in the series "The Sesquiterpene Lactone Chemistry of Helianthus". Biochemical Systematics and Ecology 19: 59 – 79

18

Spring O & Schilling EE (1990) The sesquiterpene lactone chemistry of Helianthus sect. Ciliares (Asteraceae, Heliantheae). Part IV in the series "The Sesquiterpene Lactone Chemistry of Helianthus". Biochemical Systematics and Ecology 18: 139 – 143

17

Spring O & Schilling EE (1990) The origin of Helianthus x multiflorus and Helianthus x laetiflorus. Part III in the series "The Sesquiterpene Lactone Chemistry of Helianthus". Biochemical Systematics and Ecology 18: 19 – 23

16

Spring O & Schilling EE (1989) Chemosystematic investigation of the annual species of Helianthus (Asteraceae). Part II in the series "The Sesquiterpene Lactone Chemistry of Helianthus". Biochemical Systematics and Ecology 17: 519 – 528

15

Spring O (1989) Microsampling, an alternative approach to use sesquiterpene lactones for systematics. Part I in the series "The Sesquiterpene Lactone Chemistry of Helianthus (Asteraceae)". Biochemical Systematics and Ecology 17: 509 – 517

14

Hausen BM & Spring O (1989) Sunflower allergy - On the constituents of the trichomes of Helianthus annuus L. (Compositae). Contact Dermatitis 20: 326 – 334

13

Spring O, Priester T, Klemt V & Kruppa J (1989) The possible function of sesquiterpene lactones in sunflower. Proceedings of the Sunflower Research Workshop, Fargo, North Dakota, p. 21 – 22

12

Spring O, Benz T & Ilg M (1989) Sesquiterpene lactones of the capitate glandular trichomes of Helianthus annuus. Phytochemistry 28: 745 – 749

11

Spring O, Wolz C & Hager A (1988) Auxin-induced N-ethylmaleimide (NEM) effects on elongation growth of coleoptiles and auxin-induced 14C-NEM labeling of membrane proteins. Physiologia Plantarum 72: 305 – 310

10

Spring O & Bienert U (1987) Capitate glandular hairs from sunflower leaves: Development, distribution and sesquiterpene lactone content. Journal of Plant Physiology 130: 441 – 448

9

Spring O, Bienert U & Klemt V (1987) Sesquiterpene lactones in glandular trichomes of sunflower leaves. Journal of Plant Physiology 130: 433 – 439

8

Spring O & Krauß W (1987) In vivo fluorescence labeling of plasma membrane from plant tissue and cells. Plant Science 48: 203 – 213

7

Spring O, Klemt V, Albert K & Hager A (1986) A furano-heliangolide in Helianthus debilis: implications for a chemotaxonomy of the genus Helianthus. Zeitung für Naturforschung 41c: 695 – 698

6

Spring O, Priester T & Hager A (1986) Light-induced accumulation of sesquiterpene lactones in sunflower seedlings. Journal of Plant Physiology 123: 79 – 89

5

Spring O, Priester T, Stransky H & Hager A (1985) Sesquiterpene lactones in the sunflower seedlings: distribution in the plant and occurrence in genetic varieties as determined by an isocratic HPLC technique. Journal of Plant Physiology 120: 321 – 329

4

Spring O, Kupka J, Maier B & Hager A (1982) Biological activities of sesquiterpene lactones from Helianthus annuus: antimicrobial and cytotoxic properties, influence on DNA, RNA, and protein synthesis. Zeitung für Naturforschung 37c: 1087 – 1091

3

Spring O & Hager A (1982) Inhibition of elongation growth by two sesquiterpene lactones isolated from Helianthus annuus L. Planta 156: 433 – 440

2

Spring O, Albert K & Hager A (1982) Three biologically active heliangolides from Helianthus annuus. Phytochemistry 21: 2551 – 2553

1

Spring O, Albert K & Gradmann W (1981) Annuithrin, a new biologically active germacranolide from Helianthus annuus. Phytochemistry 20: 1883 – 1885