Frank Marthe

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Karyotype analyses based on staining by acetocarmine followed by Giemsa N-banding of somatic metaphase chromosomes of Hordeum vulgare L. were carried out on 61 reciprocal translocations induced by X-irradiation. By means of computer-based karyotype analyses all of the 122 breakpoints could be localized to defined sites or segments distributed over the seven(More)
Hybrid callus was formed from the successful protoplast fusion between pollen protoplasts of Brassica oleracea var. italica and haploid mesophyll protoplasts of Brassica rapa. The pollen protoplast isolation frequency in broccoli was highly related to the ratio of trinucleate pollens in the male gametophyte population. Large quantities of pollen protoplasts(More)
A new strategy has been devised and used for the physical localization of genetically mapped restriction fragment length polymorphism (RFLP) clones to barley chromosomes. Morphologically distinct translocation chromosomes from synchronized root-tip meristems were microisolated and their DNA was used as a template for polymerase chain reaction with(More)
Das Turnip mosaic virus (TuMV) ist weltweit verbreitet und gehört zur Gruppe der Potyviren. Es hat einen außerordentlich großen Wirtspflanzenkreis von über 300 Arten und wird nicht persistent durch 89 Aphidenarten übertragen. Bisher sind beim TuMV zwölf Pathotypen bekannt. Im Kohlgemüse verursacht das TuMV die so genannte Kohlschwarzringfleckigkeit. Dabei(More)
Lemon balm (Melissa officinalis L.) is of increasing importance resulting in rising growth area. Improved knowledge on the genome structure, number of chromosomes in connection with the taxonomical structure of balm is indispensable for improved new varieties. A collection of 40 balm accessions (M. officinalis) was characterized by flow cytometry and FISH(More)
Sixteen different genotypes of parsley, including two cultivars, six populations, and eight inbred lines, were investigated regarding their sensory characteristics in relation to the volatile patterns and resistance to Septoria petroselini . The sensory quality was determined by a combination of profile analysis and preference test, whereas the volatile(More)
A collection of 220 accessions of parsley (Petroselinum crispum [Mill.] Nyman) was evaluated at two experimental stations (Gatersleben and Quedlinburg, Germany) under natural infection. Widespread origins of tested accessions provide the opportunity for first-time characterization of existence, spreading and level of resistance/susceptibility to the(More)
The generation of haploids in lemon balm (Melissa officinalis L.) is the prerequisite for accelerated development of homozygous lines. Wide experiments to induce sporophytic development were arranged. Donor plants of lemon balm were established in a greenhouse, climate chambers and in vitro. For haploid induction, different variations of media and culture(More)
Kohlhernie (Plasmodiophora brassicae), Schwarzfleckigkeit (Alternaria brassicicola, A. brassicae) sowie die durch Phoma lingam verursachte Blattfleckigkeit und Fußvermorschung sind wirtschaftlich bedeutsame Erkrankungen des Kohlgemüses. Für ihre Begrenzung bietet sich als Alternative zum Einsatz von Fungiziden die Nutzung der erblichen biotischen Resistenz(More)
  • J. Kittler, H. Krüger, +7 authors Frank Marthe
  • Genetic Resources and Crop Evolution
  • 2017
Lemon balm (Melissa officinalis L.) is a well-known aromatic and medicinal plant. Because of its proven sedative, spasmolytic and antiviral effects, it is often used in watery or alcoholic extracts for self-medication or pharmaceutical purposes. Its therapeutic effect is due to the content of essential oil and rosmarinic acid. A set of 28 balm accessions(More)
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