Urediniospore morphology of Puccinia species attacking Cardueae
Keyword(s):
Scanning electron microscopy of the urediniospores of three Puccinia species further resolved their spore ornamentation and supported observations made with the light microscope. In particular, the smooth hilum surface of P. jaceae Otth. urediniospores was clearly observed in contrast to the minutely verrucose and distinctly verrucose hilum of P. centaureae D. C. and P. carthami Cda., respectively. These observations in combination with other morphological features of urediniospores were useful in delimiting the three species and in recognizing two urediniospore forms characteristic of separate evolutionary lineages.
Keyword(s):
2011 ◽
Vol 31
(1-2)
◽
pp. 98-102
◽