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Tag Archives: Phylogeny
I will focus upon the taxonomy of Narcissus sections Apodanthi and Jonquillae during my PhD project. I started in January and since members of the genus are almost entirely spring flowering, so I had to organise fieldwork rather quickly in … Continue reading
A list of all PM species I have found in 2014 is now available on the Whiteknights biodiversity blog. Please take a look.
Like any organism reproduction is key to the life of the powdery mildews. Their short generation time and mixture of asexual (self-replication) and sexual life cycles have evolved to produce the veracious organisms which blight many of our agricultural and … Continue reading
Amongst the most important visual, superficial features of the powdery mildew are their appendages. These limb-like features arising from the surface of the, sexual spore containing, chasmothecia are important for latching onto the stems and leaves of their hosts. They vary … Continue reading
After establishing itself on a host a powdery mildew can begin to reproduce. Asexual conidia (spores) are produced as 3-D protrusions, on structures called conidiophores, from the predominantly 2-D mycelial network on the surface of a host. In this aspect … Continue reading
The year 2000 saw a major revision of the taxonomy of the powdery mildews originally proposed by Braun (1987). The new monograph saw the recognition of the five major lineages of the Erysiphales therefore establishing the five ‘tribes’ (table 1).