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Publication
Occurrence of Puccinia spp. spores in Madeira Island and their phytopathological importance
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Advisor(s)
Abstract(s)
The genus Puccinia represents rust infections, which are responsible for great productivity losses
in crops of commercial and ornamental plants worldwide. This work is aimed at determining the occurrence
of Puccinia spp. spores in Madeira Island in order to
infer the exposure risks from a phytopathological point
of view. A phytopathological analysis was performed in
203 local plant samples between January 2003 and
December 2012. During the same period the airborne
concentrations of rust spores were monitored following
well-established guidelines. Aerobiological data was
compared with meteorological records. Based on macro
and microscopic analyses, five species of rusts were
identified: P. horiana, P. buxi, P. porri, P. pelargoniizonalis, and P. sorghi, and they were found mostly in
spring and summer. A total of 20 samples out of 203
analysed plants (9.8%), were infected with Puccinia
spores, i.e., P. horiana (5.9%), P. buxi (1.47%),
P. porri and P. pelargonii-zonalis (0.98%), and
P. sorghi (0.5%). During the studied period Puccinia
spores attained an annual average concentration of 126
spores m−3 and most of them were recorded between
March and October. Meteorological factors were determinant in fluctuations in spore concentration. Relative
humidity was the parameter that favoured the biggest
release and dispersal of the rust spores, whereas rainfall
revealed a significant negative effect. Rusts do not represent an important plant pathogen in Madeira Island, as
shown by the low infection frequencies and levels of
airborne spore concentrations.
Description
Keywords
Rust Inoculum detection Infection conditions Aerobiology Madeira (Portugal) . Faculdade de Ciências da Vida
Citation
Camacho, I., Leça, R., Sardinha, D. et al. Occurrence of Puccinia spp. spores in Madeira Island and their phytopathological importance. Eur J Plant Pathol 150, 955–969 (2018). https://doi.org/10.1007/s10658-017-1335-1
Publisher
Springer