Table 1.
Sources and GenBank accession numbers of Peronospora and Pseudoperonospora material used for molecular phylogenetic analyses.
Figure 1.
Phylogram showing phylogenetic relationships of Peronospora accessions from Papaver and Meconopsis.
One of 16 most parsimonious trees 1035 steps long inferred from the combined cox1-cox2 sequence data matrix; parsimony and likelihood bootstrap support above 50% and posterior probabilities above 90% are given at first, second and third position, respectively, above/below the branches. The tree was rooted with two species of Pseudoperonospora according to Göker et al. [38].
Figure 2.
Morphological features of Peronospora apula.
a, b conidiophores; c ultimate branchlets; d–h conidia; i–k oogonia and oospores. Sources: a, e–k WU 32410, holotype; b WU 32408; c, d WU 32409. Scale bars a, b 50 µm, c–k 20 µm.
Figure 3.
Morphological features of Peronospora arborescens.
a, b conidiophores; c ultimate branchlets; d–h conidia; i–k oogonia and oospores. Sources: a WU 32416; b, k WU 32411; c, f, g WU 32412; d, h WU 32418; e WU 32413. Scale bars a 100 µm, b 50 µm, c–k 20 µm.
Figure 4.
Morphological features of Peronospora argemones.
a, b conidiophores; c ultimate branchlets; d–h conidia; i–k oogonia and oospores. Sources: a, c GLM 64084; b K(M) 181196, holotype. Scale bars a, b 50 µm, c-k 20 µm.
Figure 5.
Morphological features of Peronospora cristata.
a-c conidiophores; d ultimate branchlets; e–i conidia; j–l oogonia and oospores. Sources: a, b, d, e, j, k LE 185561, holotype; c, h WU 32419; f, g, i, l WU 32421. Scale bars a-c 50 µm, d-l 20 µm.
Figure 6.
Morphological features of Peronospora meconopsidis.
a, b conidiophores; c ultimate branchlets; d–h conidia; i–k oogonia and oospores. Sources: a, f, g WU 32426; b, c–e NEU, holotype; h WU 32425; i K(M) 179241; j, k K(M) 179245. Scale bars a, b 50 µm, c–k 20 µm.
Figure 7.
Morphological features of Peronospora somniferi.
a, b conidiophores; c ultimate branchlets; d–h conidia; i–k oogonia and oospores. Sources: a, g WU 32432; b, d, i–k WU 32428, holotype; c MA 65574; e, f WU 32429; h WU 32430. Scale bars a, b 50 µm, c–k 20 µm.
Figure 8.
Disease symptoms of Peronospora meconopsidis and P. somniferi on opium poppy (Papaver somniferum).
a, b polyangular leaf lesions of P. meconopsidis; c, d systemic infection of P. somniferi from above (c) and from underneath (d), showing the grey down. Sources: a WU 32424; b WU 32426; c, d WU 32428, holotype.