4 rezultatov
A disease of penstemon (Penstemon digitalis) occurring in commercial nurseries in Minnesota in 2004 to 2006 and characterized by red foliar ringspots, leaf deformation, and plant stunting was found to be caused by a strain of Turnip vein-clearing virus (TVCV) that was named Penstemon ringspot virus
Buckwheat (Polygonum fagopyrum L.) is an annual medicinal plant useful in convalescence and treatment of anemia. It is widely grown in Europe, where it is sometimes used as human food. In a survey made during 1995 to 1996 in the Emilia-Romagna region (northern Italy), a virus was consistently
During surveys of Dichondra repens (kidneyweed, family Convolvulaceae) turfs in public gardens of the Franco-Italian Riviera from 1993 to 2003, leaf mosaic and yellow ringspot symptoms have been observed in Antibes, Menton, Nice, and Vallauris (France) and San Remo and La Mortola (Italy). Isolates
70 phosphate buffer extracts of various plant tissues of 40 species as well as of 2 bacteria were tested for the presence of endogenous inhibitors of the respiratory chain. Electron transfer particles (ETP) from beef heart mitochondria served as test object. The NADH oxidase (spectrophotometrically)