Results 191 to 200 of about 26,782 (227)

New Hosts of Phytophthora infestans in Kenya

Nature, 1951
THE potato has been grown in Kenya for more than half a century, frequently under conditions of temperature and humidity favourable to blight epidemics. It was not, however, until 1941 that blight appeared, and in that year caused widespread destruction of the crop from the eastern escarpment of the Rift Valley, where the first outbreak was observed ...
R M, NATTRASS, M, RYAN
openaire   +2 more sources

Phytophthora infestans diversity in Mexico

2017
Repository for the manuscript on Phytophthora infestans describing population structure in Central Mexico.
Shakya, Shankar, Grünwald, Niklaus J.
openaire   +1 more source

Composition of DNA from Phytophthora infestans

Canadian Journal of Microbiology, 1968
Deoxyribonucleic acid was extracted from the late blight fungus, Phytophthora infestans, and partially characterized in terms of its physical and chemical properties. Hydrolysis of the purified DNA followed by electrophoretic analysis failed to demonstrate the presence of constituents other than those characteristically found in DNA.
M C, Clark, C H, Lawrence, O T, Page, W A, Hodgson   +3 more
openaire   +2 more sources

Pectinesterases from Phytophthora infestans

1988
Publisher Summary This chapter discusses the assay method and purification of pectinesterases from Phytophthora infestans. The chapter uses simple and less time-consuming method that has been used successfully. Like the titration method it is based on the decrease in pH of the reaction mixture due to increase in free carboxyl groups during enzyme ...
openaire   +1 more source

Phytophthora infestans: populations, pathogenicity and phenylamides

Pest Management Science, 2002
AbstractIsolates of Phytophthora infestans (Mont) de Bary (the potato and tomato late blight pathogen) resistant to phenylamides appeared in Europe and North America in the late 1970s and early 1990s respectively. Concurrent, but coincidentally, with both these events there were radical structural shifts in the pathogen populations as immigrant ...
openaire   +2 more sources

Phytotoxins from Phytophthora infestans

1990
Phytotoxins from P.
SCALA, ANIELLO, PELUCCHINI, Donatella, TEGLI, STEFANIA   +2 more
openaire   +1 more source

Building up virulence in phytophthora infestans

American Potato Journal, 1938
The virulence ofPhytophthora infestans has been increased by passage through resistant varieties to a point where a number of hybrids which give an immune reaction in comparison with standard varieties were blighted severely. A similar build-up of virulence occurred under wholly natural conditions.
Donald Reddick, Wilford Mills
openaire   +1 more source

Phytophthora infestans (Phytophthora blight)

PlantwisePlus Knowledge Bank, 2022
openaire   +1 more source

Pectic enzyme activity from Phytophthora infestans

Phytochemistry, 1970
Abstract Filtrates from cultures of Phytophthora infestans and inoculated potato tuber tissue contain an endo-polygalacturonase which is separable from galactanase by gel filtration on Sephadex G 100. Pectic lyase and macerating activities were not detected.
openaire   +1 more source

Phytophthora infestans. Evolution des souches

1995
National ...
Duvauchelle, S., Andrivon, Didier
openaire   +1 more source