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Journal of Plant Diseases and Protection - The host response of 17 cover crop cultivars to infection by single-species populations of Pratylenchus hippeastri, Pratylenchus vulnus and Pratylenchus... 相似文献
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C M Cameron B J Van Biljon W J Botha P C Knoetze 《The Onderstepoort journal of veterinary research》1983,50(3):229-231
Immunization of ewes with oil emulsion toxoid followed by an aluminium phosphate-adsorbed toxoid both containing 10 Lf per dose, resulted in a very high antitoxin level in their lambs. Two injections of aluminium phosphate-adsorbed toxoid also imparted a passive immunity to lambs which is considered to be adequate to protect them against tetanus for 4 weeks after birth. 相似文献
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Histophilus ovis was shown to be phagocytized by neutrophils when the organisms enter the lumen of the reproductive tract of the ram. The phagocytosis and destruction of H. ovis by neutrophils was demonstrated in vitro by the viable count method and by electron microscopy. It was shown that immunoglobulins and complement had no influence on the phagocytosis and destruction of H. ovis. Phagocytosis and killing of H. ovis was accomplished equally well by neutrophils from immunized and non-immunized rams. Immunized rams showed a massive infiltration of neutrophils into the walls, epithelium and lumen of their ampullae when dead H. ovis were introduced into their lumen. 相似文献
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Experimental evidence is produced to justify abandoning the practice of subdividing Costridium botulinum Type C into type Calpha and Cbeta. 相似文献
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Tryptic activation of Clostridium botulinum type C beta toxin 总被引：9，自引：0，他引：9
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An intramuscular injection of 8-16 Lf tetanus toxoid in water-in-oil emulsion protected adult horses against tetanus for at least 128 weeks. A booster dose of 8 Lf toxoid in aqueous solution protected them for a further period of at least 3 1/2 years. Colostral immunity protected foals for at least 10 weeks. An intramuscular injection of 8 Lf toxoid in water-in-oil emulsion given to foals from immune dams when they were 10-18 weeks old did not elicit any antibody response. They did respond, however, to a booster injection of 8 Lf toxoid in aqueous solution given 12 weeks after the first dose. New-born foals were shown to be inherently unable to respond to an injection of tetanus toxoid. 相似文献
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Shubane Adoration R. Swart Antoinette Knoetze Rinus Tiedt Louwrens R. Fourie Hendrika 《植物病害和植物保护杂志》2021,128(6):1637-1655
Journal of Plant Diseases and Protection - Identification of Heterodera carotae (carrot cyst nematode), first reported from the Tarlton area in South Africa in 2008, was based on morphometrical and... 相似文献
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Journal of Plant Diseases and Protection - Root lesion nematodes (Pratylenchus spp.) are the most common plant-parasitic nematodes present in apple orchards in South Africa. During a survey... 相似文献
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