wick et al., 1983). Living plants do not actively release high amounts of ITCs (Börner, 1961), because glucosiThe allelopathic potential of isothiocyanates (ITC) released by nolates are located in the vacuole and myrosinase is turnip–rape mulch [Brassica rapa (Rapifera Group)–Brassica napus L.] was evaluated. Six different ITCs were identified from chopped bound to the cell wall (Björkman, 1976...

The genus Septoria includes important plant pathogens with worldwide distribution, commonly associated with leaf spots and stem cankers of a broad range of plant hosts. In this study, eight isolates of Septoria were recovered from leaves with leaf spot on four herbaceous and woody plants from Gilan, Ardebil, East and West Azerbaijan provinces in north and northwest of Iran. The isolates were st...

Epidemiological investigations on Fasciola hepatica fasciolasis were carried out from July 2004 to June 2005 in the Gafsa oases (Tunisia) after the detection of a human case. Three habitats were studied: one in El Gsar and two in Ain Soltan. The prevalence of human infection was 6.6%. The presence of the parasite was detected through serology in 14.3% of cattle, 35% of sheep and 68.4% of goats....

Only two of the many previously described species of the genus Pseudomonas wil grow and metabolize sugars under strictly anaerobic conditions. Certain others can make use of substitute hydrogen acceptors, such as nitrates or nitrites, but only Pseudomonas lindneri and Pseudomonas fermetas are truly fermentative organisms (Kluyver and Hoppenbrouwers, 1931; Kuhr, 1932). The former carries out an ...

By international standards New Zealand (population 3.8 x 10(6)) has a high rate of colorectal cancer, with approximately 2000 new cases occurring and approximately 1000 deaths each year. But within the New Zealand population, a lower incidence of colorectal cancer is reported for Maori than for non-Maori New Zealanders (22.2 and 43.7 per 100,000 respectively). Information from the New Zealand N...