One Crop Disease, How Many Pathogens? Podosphaera xanthii and Erysiphe vignae sp. nov. Identified as the Two Species that Cause Powdery Mildew of Mungbean (Vigna radiata) and Black Gram (V. mungo) in Australia
| العنوان: | One Crop Disease, How Many Pathogens? Podosphaera xanthii and Erysiphe vignae sp. nov. Identified as the Two Species that Cause Powdery Mildew of Mungbean (Vigna radiata) and Black Gram (V. mungo) in Australia |
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| المؤلفون: | Abhay K. Pandey, Kaylene Bransgrove, Shu-Rong Tang, Nigel A Fechner, Colin A Douglas, Ramakrishnan M. Nair, Márk Z. Németh, Shu-Yan Liu, Niloofar Vaghefi, Lisa Kelly, Levente Kiss, Mamta Sharma, Kara Stuart |
| المصدر: | Phytopathology®. 111:1193-1206 |
| بيانات النشر: | Scientific Societies, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, biology, Radiata, food and beverages, Plant Science, biology.organism_classification, 01 natural sciences, Fungicide, Vigna, 03 medical and health sciences, 030104 developmental biology, Botany, Plant breeding, Internal transcribed spacer, Erysiphe, Agronomy and Crop Science, Ribosomal DNA, Powdery mildew, 010606 plant biology & botany |
| الوصف: | Powdery mildew is a significant threat to mungbean (Vigna radiata) and black gram (V. mungo) production across Australia and overseas. Although they have been present in Australia for at least six decades and are easily recognized in the field, the precise identification of the pathogens causing this disease has remained unclear. Our goal was to identify the powdery mildew species infecting mungbean, black gram, and wild mungbean (V. radiata ssp. sublobata) in Australia. The internal transcribed spacer (ITS) and large subunit sequences of the ribosomal DNA and/or morphology of 57 Australian specimens were examined. Mungbean and black gram were infected by two species: Podosphaera xanthii and a newly recognized taxon, Erysiphe vignae sp. nov. Wild mungbean was infected only with P. xanthii. Mungbean and black gram powdery mildew ITS sequences from China, India, and Taiwan revealed the presence of only P. xanthii on these crops despite controversial reports of an Erysiphe species on both crops in India. Sequence analyses indicated that the closest relative of E. vignae is E. diffusa, which infects soybean (Glycine max) and other plants. E. vignae did not infect soybean in cross-inoculation tests. In turn, E. diffusa from soybean infected black gram and provoked hypersensitive response in mungbean. The recognition of a second species, E. vignae, as another causal agent of mungbean and black gram powdery mildew in Australia may complicate plant breeding efforts and control of the disease with fungicide applications. |
| تدمد: | 1943-7684 0031-949X |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::2eb1ed0e08f8bd814bcadfc002f381ccTest https://doi.org/10.1094/phyto-12-20-0554-rTest |
| رقم الانضمام: | edsair.doi...........2eb1ed0e08f8bd814bcadfc002f381cc |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19437684 0031949X |
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