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  • Conidiobolus major  (1)
  • 1
    ISSN: 1573-8248
    Keywords: Erynia neoaphidis ; Conidiobolus major ; innocuity ; experimental animals ; biological control agents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé L'utilisation des Entomophthorales dans la lutte biologique contre les insectes n'est possible qu'après avoir vérifié leur innocuité vis-à-vis des vertébrés. Dans ce but, des injections sous-cutanées et intrapéritonéales ont été réalisées chez 274 animaux (cobayes et souris) à l'aide de mycélium et spores deErynia neoaphidis etConidiobolus major pathogènes de la “mosca pinta”. Les seules lésions tissulaires observées sont des nodules, des abcès et des adhérences au niveau de la rate, du foie, des reins et du péritoine. Les champignons n'ont jamais pu être réisolés à partir des divers organes. Les observations histopathologiques ne montrent aucune altération pathologique importante; seuls des filaments lysés entourés de polymorphonucléaires ont pu être retrouvés. Ces résultats indiquent l'innocuité deE. neoaphidis etC. major vis-à-vis des souris et des cobayes.
    Notes: Abstract Previous research concerning theEntomophthorales has demonstrated their capabilities as biological control agents. To use them widely and at industrial levels, studies to demonstrate their innocuity in animals must be made. The present study concerns the intraperitoneal and subcutaneous inoculation of 274 animals (mice and guinea pigs) withErynia neoaphidis Remaudière & Hennebert andConidiobolus major (Thaxter) Remaudière & Keller, fungi pathogenic for the spittlebug [Aeneolamia postica (Walk) andProsapia simulans (Walk)] in Mexico. The alterations found were macroscopic tissue lesions consisting of nodules, abscesses and adhesions in the liver, spleen, kidneys and intraperitoneal cavity. No fungi could be recovered from organs at any time and only lysed filaments surrounded by polymorphonuclear cells could be seen at day 8 post-inoculation. The histopathological findings showed no important pathological alterations. These results suggest the innocuity ofErynia neoaphidis Remaudière & Hennebert andConidiobolus mamor (Thaxter) Remaudière & Keller in mice and guinea pigs.
    Type of Medium: Electronic Resource
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