An article in PLoS Pathogens by Morris et al describe a hypothesis about the evolution and origins of plant pathogens applying the parallel theories to the emergence of medically relevant pathogens. The authors highlight the importance of understanding the evolution of organisms in the context of emerging pathogens like Puccinia Ug99 for our ability to design strategies to protect human health and food supplies. Both bacterial and fungal pathogens of plants are discussed but I (perhaps unsurprisingly) focus on the fungi here. Continue reading Origins and evolution of pathogens
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Spread of wheat rust Puccinia strain Ug99 and consequences on already strained food supplies is discussed in an Op-Ed piece covered in GeneticMaize [...] Hyphoid logic points out that it is appropriate to discuss about the oomycete Phytophthora infestans on St. Patrick’s Day and mentions a NYT article “The fungus that conquered Europe” that is worth a look. It is also worth thinking about another blight, well rust, that is spreading through the middle east and could threaten wheat crops worldwide. New Scientist has excellent coverage of Puccinia [...] Lots of papers in Mycologia (subscription required) this month of different groups analyzing the fine-scale relationships of many different fungal clades using the loads of sequences that were generated as part of the Fungal Tree of Life project. [...] A while back, Jason blogged briefly on a New Scientists article about the rise of a new Puccinia graminis strain, Ug99, that is spreading through West African wheat fields at an enormous rates. It looks like this story is growing in the scientific conciousness, as Science is now running an article on the spread of this wheat pandemic. [...] The New Scientist has an article about the spread of black stem rust caused by Puccinia graminis. We briefly mentioned the 1st release of a Puccinia genome in January. Some more links about the spread of the Ug99 virulent strain.
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