Morphological and molecular characterization of Wilsoniana amaranthi (Albuginales, Oomycota) on Amaranthus retroflexus in Iran
White blister rust causal agents, previously assigned to the genus Albugo, are obligate plant pathogens affecting numerous plant families. The genus Wilsoniana has been erected from the genus Albugo to accommodate species infecting hosts in the Caryophyllales. Starting from spring 2018, we observed symptoms resembling white blister rust disease on leaves of Amaranthus retroflexus L. in the northern Iran. The specimens were subjected to molecular study by analyzing cox2, LSU and ITS rDNA sequences and morphological data sets. The results confirmed that the specimens belong to Wilsoniana amaranthi (Schwein.) Y.J. Choi, Thines & H.D. Shin (Albuginales, Oomycota). To our knowledge, this is the first confirmed and documented record of W. amaranthi (ex Amaranthus retroflexus) from both Iran and West Asia. The results of this study will provide a reference for further resolution of W. amaranthi species concept.
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Assessment of biochemical and morphophysiological changes of some pepper cultivars infected with Potato Virus Y (PVY)
Samane Vatani, Saeed Nasrollanejad *, , Farzad Aliramaji, Sharbano Vakili, Leila Fahmideh
Journal of Crop Biotechnology, -
Effect of ectomycorrhizal fungus Laccaria bicolor on some physiological and morphological characteristics of Populus alba under drought stress and cytospora canker conditions
Narges Sepasi, Abdolhosein Taheri *, Seyedeh Masoumeh Zamani, Mehdi Jahani, Mohammadebrahim Farashiani
Journal of Plant Production,