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Histopathology of Albugo tragopogonis on stems and petioles of sunflower


, : Histopathology of Albugo tragopogonis on stems and petioles of sunflower. Canadian Journal of Botany 77(1): 175-178

Stem lesions in sunflower caused by Albugo tragopogonis developed individually from primary infections and did not result from a systemic infection. Cell division and callose formation were not observed, but weak lignin deposition occurred in infected tissues. Hyphae occurred intercellularly in stems in the cortex, cambium, vascular rays and pith. In petioles parenchymatous tissue was heavily colonized in contrast to lightly colonized collenchymatous hypodermis.

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Accession: 003161249

DOI: 10.1139/b99-016

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Related references

Viljoen, A.; Kruger, H.; Van Wyk, P.S., 1997: Histopathology of sunflower stems infected by Albugo tragopogonis. Phytopathology 87(6 SUPPL ): S100

Thines, M.Z.pper, R.S.hauffele, D.S.ring, O., 2006: Characteristics of Pustula tragopogonis (syn. Albugo tragopogonis) Newly Occurring on Cultivated Sunflower in Germany. In temperate climates, Pustula tragopogonis is rarely found on cultivated sunflower. In Europe, it was so far of little economic impact on other Asteraceae, except for some regions in the Mediterranean. In 2003, P. tragopogonis was found for the f...

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