Effect of some saprotrophic soil fungi on the embryonic development of Ascaris suum (Nematoda)

Wanda Kuźna-Grygiel, Lidia Kołodziejczyk, Krystyna Janowicz, Kinga Mazurkiewicz-Zapałowicz

Abstract


Effect of Penicillium frequentans and Stachybotrys chartorum fungi on the embryonic development of Ascaris suum were studied in the present paper. In eggs that were incubated with fungi, significant delay of initiation of zygote division, as well as retardation of the development of individual stages of embryogenesis, was given a closer insight. Additionally, the following phenomena were observed: vacuolisation of zygote and disturbances in the distribution of yolk, non-synchronous and unequal divisions of blastomere, deformations of the blastula, gastrula, and larval stages. The above changes were more distinct in eggs that were incubated with P. frequentans. In the cultures with P. frequentans, a significantly lower number of larvac, as well as their earlier mortality were observed.

Keywords


soil fungi; embryogenesis; Ascarls suum

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