Results 181 to 190 of about 26,782 (227)

Production of Coumarins by Phytophthora infestans

Nature, 1966
THE causal organism of potato blight, Phytophthora infestans (Mont) de Bary, has been subjected to very close investigation since it was first described just over a century ago. It is only in recent years, however, that it has been possible to culture this organism in vitro on a chemically defined medium, and very little work has been done on its ...
D J, Austin, D D, Clarke
openaire   +4 more sources

[Heteroplasmosis in Phytophthora infestans].

Genetika, 2007
APCR and monozoospore plating was used to demonstrate a simultaneous presence of the mitochondria with mitochondrial DNA of haplotypes ILa and IIa in the mycelium of several Phytophthora infestans strains.
S N, Elanskiĭ, D I, Miliutina
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Exoproteinases of the Oomycete Phytophthora infestans

Applied Biochemistry and Microbiology, 2004
When grown in a medium containing heat-stable potato tuber proteins, the oomycete Phytophthora infestans (Mont.) de Bary produces a set of exoproteinases active at neutral and mildly basic pH values. These extracellular proteinases have been shown by SDS-PAGE with the presence of gelatin to include at least six components differing in molecular weight.
E L, Gvozdeva   +4 more
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Vegetative Hybridity in Phytophthora infestans

Nature, 1970
Phytophthora infestans, the fungus that causes blight in potatoes, probably originated in Mexico1, where two sexually compatible mating groups (A1 and A2) occur with equal frequency and oospores, resulting from normal sexual reproduction, are produced2.
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The cytology of phytophthora infestans

Chromosoma, 1965
Phytophthora infestans has three kinds of somatic nuclei: an oval shaped nucleus (approx. 3.1×2.7 μ) which stains diffusely except for a crescent shaped Feulgen positive “cap” which stains intensely; a “granular” nucleus whose contents are organized into a fairly constant number of stained bodies, and, a deeply staining “condensed” nucleus. The “capped”
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Variation in phytophthora infestans

European Potato Journal, 1963
From three field isolates ofPhytophthora infestans sub-isolates were set op on different potato varieties. Their growth rates were assayed on tuber tissue of several potato varieties. Neither in respect of the variation between the original field isolates nor variation arising during the experiment was there any evidence of adaptation by the fungus to ...
openaire   +1 more source

Krumpirova plijesan (Phytophthora infestans)

Glasilo biljne zaštite, 2001
Prvi znaci bolesti mogu se očekivati pred kraj cvatnje ili neposredno nakon cvatnje, ali to ovisi o kišama i temperaturama. Simptomi su najuočljiviji na listu, premda mogu biti napadnute peteljke lista, stabljika i gomolji. Zaraza se najčešće javlja na lišću koje je najbliže tlu.
Cvjetković, Bogdan, Šubić, Milorad
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Biological specialization in phytophthora infestans

American Potato Journal, 1933
Phytophthora infestans as it occurs in most parts of North America either is not biologically specialized or else the varieties of potatoes and tomatoes now grown are not kinds that reveal the presence of more than one form. The form prevalent in North America is the same as the one which occurred at Moscow in 1928 and at Munich in 1930.
Donald Reddick, Willard Crosier
openaire   +1 more source

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