Hostname: page-component-cb9f654ff-d5ftd Total loading time: 0 Render date: 2025-08-04T15:38:13.978Z Has data issue: false hasContentIssue false
  • English
  • Français

Host–pathogen relationship between Salix and Melampsora sheds light on the parentage of some biomass willows

Published online by Cambridge University Press:  01 January 1999

M. H. PEI ,
T. HUNTER  and
D. J. ROYLE
M. H. PEI
Affiliation:
IACR-Long Ashton Research Station, Department of Agricultural Sciences, University of Bristol, Long Ashton, Bristol BS41 9AF, UK
T. HUNTER
Affiliation:
IACR-Long Ashton Research Station, Department of Agricultural Sciences, University of Bristol, Long Ashton, Bristol BS41 9AF, UK
D. J. ROYLE
Affiliation:
IACR-Long Ashton Research Station, Department of Agricultural Sciences, University of Bristol, Long Ashton, Bristol BS41 9AF, UK
Get access

Abstract

The association between willow (Salix) and rust (Melampsora) is highly specific. Willows named Salix burjatica, S. dasyclados (S.×dasyclados) and S.×calodendron are important in renewable-energy plantations in the UK and western Europe. There has been much controversy over their origin, species status and nomenclature. It has been suggested that they have originated from hybridization between. S. caprea, S. viminalis and S. cinerea. In the present work, 59 willow clones were investigated through morphological examination and detached leaf inoculation using willow differentials, for their association, in southwest England, with M. capraearum and three pathotypes of Melampsora epitea (Me-A, B and C). M. capraearum was found on all clones of S. caprea and its hybrids with S. aurita; Me-A on all S. viminalis clones; Me-B on wild S. cinerea, S.×calodendron, S.×dasyclados ‘De Biardii 445’ and S. ‘Spaethii’; Me-C on all S. burjatica clones and most S.×dasyclados clones. Both M. caprearum and Me-A infected all S.×sericans (S. caprea×viminalis) clones and S.×dasyclados ‘LA041/03’. We suggest that S.×dasyclados ‘LA041/03’ should be treated as S.×sericans (S. caprea×S. viminalis); S. burjatica, S. dasyclados and S.×dasyclados as synonyms; S.×dasyclados ‘De Biardii 445’ as S.×calodendron ‘De Biardii 445’; and S. ‘Spaethii’ as S.×calodendron ‘Spaethii’.

Keywords

biomass willowSalix×dasycladosSalix×calodendronrustsMelampsora capraearumMelampsora epiteaparentagenomenclature

Information

Type
Research Article
Information
The New Phytologist , Volume 141 , Issue 1 , January 1999 , pp. 155 - 160
Copyright
Trustees of New Phytologist 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable