• externe gebruiker (Let opwarning)
  • Log in as
Record nummer 104565
Titel Heksenbezemverschijnselen : een pathologisch-morfologisch onderzoek
toon extra info.
door L. Bos
Auteur(s) Bos, L.
Uitgever Wageningen : Veenman
Jaar van uitgave 1957
Pagina's VIII, 79 p ill
Annotatie(s) Proefschrift Wageningen  toon alle annotatie(s)
Ook verschenen als: Mededelingen van de Landbouwhogeschool te Wageningen, 57 : 1; Miscell. publ. of the lab. of plant taxonomy and plant geography = Meded. v.h. Lab. voor virologie, Wageningen, no.1
Ook verschenen als handelsuitgave
Tutor(s) Venema, Prof. Dr. H.J. ; Thung, Prof. Dr. Ir. T.H.
Promotiedatum 1957-04-04
Proefschrift nr. 219
Samenvatting door auteur toon abstract
Infectious forms of witch's broom caused by a virus, were observed in Crotalaria spp. and other leguminous crops in Indonesia, and in Rubus idaeus and some herbaceous ornamentals, mainly Trqpaeolum majus, in the Netherlands. A detailed analysis of the abnormalities in Crotalaria and Tropaeolum was given. A plant infected during its early stages of development became a bushy dwarf. All potential buds developed into negatively geotropic sprouts and no flowers formed. A plant infected late had an almost normal growth habit, but inflorescences grew into complex leafy structures, thus producing broomy branch extremities. The younger their buds at the moment of infection, the more abnormal were the flowers. Thus a series of progressive floral abnormalities from a normal flower up to a completely vegetative leafy branch could be selected. The series of deviations was called antholysis. These abnormalities supported the theory that morphologically the flower must be regarded as a modified leafy branch.

Large-scale virus-induced antholysis demonstrated the morphogenetic antagonism between floral initiation and vegetative growth. Many similar virus diseases were brought together in a group of witch's broom virus diseases. Other factors may cause related aberrations: certain parasitic plants, fungi, bacteria, mites and insects. However, they only incited restricted symptoms of witch's broom. The morphological analysis of witch's broom phenomena provided arguments that growth-hormonal disturbances were involved.

Online full text
Op papier Haal het document, vind aanverwante informatie of gebruik andere SFX-diensten
Trefwoorden (cab) heksenbezems / plantenziekten / plantenvirussen
Rubrieken Plantenvirussen
Publicatie type Proefschrift
Taal Nederlands
Er zijn nog geen reacties. U kunt de eerste schrijven!
Schrijf een reactie

To support researchers to publish their research Open Access, deals have been negotiated with various publishers. Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an article Open Access. A discount of 100% means that (after approval) the author does not have to pay Article Processing Charges.

For the approval of an Open Access deal for an article, the corresponding author of this article must be affiliated with Wageningen University & Research.

U moet eerst inloggen om gebruik te maken van deze service. Login als Wageningen University & Research user of guest user rechtsboven op deze pagina.