The Distribution of Pyrimidinone Glucosides in Developing Seedlings of Vicia faba and Vicia narbonensis

Author(s):  
D Wynne Griffiths ◽  
Gavin Ramsay
Keyword(s):  
2004 ◽  
Vol 84 (4) ◽  
pp. 1235-1237 ◽  
Author(s):  
A. S. Lithourgidis

The mode of penetration and the incubation time of Sclerotinia trifoliorum Eriks. were studied in one susceptible (Polycarpe) and one resistant (A-90) cultivar of faba beans (Vicia faba L.), and in one resistant population (A-207) of Vicia narbonensis L., after artificial inoculation in a growth chamber. The fungus penetrated almost all infected plants through the stomata (>96%). In the susceptible cultivar, symptoms of fungus infection appeared 10 h after artificial inoculation, whereas in the resistant cultivar and in the resistant population symptoms appeared after 22 and 16 h, respectively. Key words: Incubation, pathogenesis, penetration, Vicia faba L., Vicia narbonensis L.


2014 ◽  
Vol 67 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Maciej Zenkteler ◽  
Mechtild Tegeder ◽  
Otto Schieder

A study was undertaken to asses the reciprocal crossability between <em>Vicia faba</em> and <em>Vicia narbonensis</em>. Flower buds or only ovaries of several varietes and genotypes were cross-pollinated in vivo (green house and field) and in vitro. Only few pollen tubes passed the style and entered into the ovary. On the whole number of 5320 cross pollinated in vivo and in vitro flowers and ovaries of <em>Vicia narbonensis</em> only 78 globular hybrid embryos were observed. After cross pollination in vivo of 3860 flower buds and ovaries of <em>Vicia faba</em> globular embryos developed in 124 ovules. The highest number of globular embryos were obtained when the <em>Vicia faba</em> line 1/33 was pollinated with <em>Vicia narbonensis</em> lines P3, P5, 150, SE.Embryogenesis proceeded till the 6-10 day after pollination, however, karyological disturbances in the cells of embryos and endosperm were often noticed at earlier stages. In vitro pollen grains of <em>Vicia faba</em> germinated on stigmas and ovaries of <em>Vicia narbonensis</em>, a significant increase in the growth of pollen tubes was noticed after ovary pollination. The technique of in vitro pollination was not suitable for <em>Vicia faba</em> as the inoculated explants died shortly after transferring onto the medium. The results indicate that finding a more suitable genotype for crossing may give a chance to obtain higher number of embryos (example line 1/33) - thus sufficient number for culturing them on media.


Agronomie ◽  
1983 ◽  
Vol 3 (5) ◽  
pp. 443-449 ◽  
Author(s):  
Joël LE GUEN ◽  
Gérard MORIN ◽  
Jeanine POISSON
Keyword(s):  

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