146 research outputs found
Plant-parasitic nematodes associated with alfafa and fluctuations of Pratylenchus jordanensis population in the Sultanate of Oman
Des enquĂȘtes rĂ©alisĂ©es de 1991 Ă 1996 dans les gouvernorats de Batimah, de Dhabira et du Dhofar et dans les rĂ©gions de l'IntĂ©rieur et de Shargia ont rĂ©vĂ©lĂ© la prĂ©sence de treize genres de nĂ©matodes phytoparasites associĂ©s Ă la luzerne. Les #Pratylenchus spp., #Tylenchorhynchus spp., #Helicotylenchus spp. et #Rotylenchulus reniformis. Les fluctuations de population de #Pratylenchus jordanensis ont Ă©tĂ© suivies sur luzerne, en deux sites Ă Rumais dans la rĂ©gion de Bathinah en 1994-1995 et 1995-1996, respectivement. Une corrĂ©lation positive (P supĂ©rieur ou Ă©gal Ă 0,01) a Ă©tĂ© observĂ©e entre les populations du nĂ©matode et la tempĂ©rature. Les populations endoracinaires sont les plus Ă©levĂ©es de juillet Ă novembre et les plus basses de dĂ©cembre Ă juin. (RĂ©sumĂ© d'auteur
Tularaemia: A challenging zoonosis
In recent years, several emerging zoonotic vector-borne infections with potential impact on human health have been identified in Europe, including tularaemia, caused by Francisella tularensis.This remarkable pathogen, one of the most virulent microorganisms currently known, has been
detected in increasingly new settings and in a wide range of wild species, including lagomorphs, rodents, carnivores, fish and invertebrate arthropods. Also, a renewed concern has arisen with regard
to F. tularensis: its potential use by bioterrorists. Based on the information published concerning the latest outbreaks, the aim of this paper is to review the main features of the agent, its biology,
immunology and epidemiology. Moreover, special focus will be given to zoonotic aspects of the disease, as tularaemia outbreaks in human populations have been frequently associated with disease in animals
Caracterização morfológica de minas foliares em espécies de Melastomataceae de Mata Atlùntica, PE
Characterization of insect galls, gall makers, and associated fauna of PlatĂŽ Bacaba (Porto de Trombetas, ParĂĄ, Brazil)
Introduction To High Altitude Entomology:Insect Life Above The Timber-Line In The North-West Himalaya
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