Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 428020
Title The effects of auxin and strigolactones on tuber initiation and stolon architecture in potato
Author(s) Roumeliotis, E.; Kloosterman, B.A.; Oortwijn, M.E.P.; Kohlen, W.; Bouwmeester, H.J.; Visser, R.G.F.; Bachem, C.W.B.
Source Journal of Experimental Botany 63 (2012)12. - ISSN 0022-0957 - p. 4539 - 4547.
DOI http://dx.doi.org/10.1093/jxb/ers132
Department(s) Laboratory of Plant Breeding
Laboratory of Plant Physiology
EPS
Publication type Refereed Article in a scientific journal
Publication year 2012
Keyword(s) gene-expression - solanum-tuberosum - key role - arabidopsis - biosynthesis - transport - tuberization - growth - plant - identification
Abstract Various transcriptional networks and plant hormones have been implicated in controlling different aspects of potato tuber formation. Due to its broad impact on many plant developmental processes, a role for auxin in tuber initiation has been suggested but never fully resolved. Here, auxin concentrations were measured throughout the plant prior to and during the process of tuber formation. Auxin levels increase dramatically in the stolon prior to tuberization and remain relatively high during subsequent tuber growth, suggesting a promoting role for auxin in tuber formation. Furthermore, in vitro tuberization experiments showed higher levels of tuber formation from axillary buds of explants where the auxin source (stolon tip) had been removed. This phenotype could be rescued by application of auxin on the ablated stolon tips. In addition, a synthetic strigolactone analogue applied on the basal part of the stolon resulted in fewer tubers. The experiments indicate that a system for the production and directional transport of auxin exists in stolons and acts synergistically with strigolactones to control the outgrowth of the axillary stolon buds, similar to the control of above-ground shoot branching.
Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.