Abstract
The hyphal bodies of Entomophthora coronata and Entomophthora apiculata are formed in vivo and in vitro. The number of hyphal bodies produced in stationary culture was less than that produced in shake cultures. The accumulation of waste products and the exhaustion of nutrients apparently did not play a significant role in hyphal-body formation. The hyphal bodies of the two Entomophthora species were not circulated in the blood of the larva of Galleria mellonella , whereas those of Metarrhizium anisopliae and Beauveria bassiana were distributed throughout the larva in the blood of the body cavity. The factors that are apparently involved in the circulation of hyphal bodies in the insect are (1) the size of the hyphal body, (2) the optimal site for the growth of the fungus, and (3) the behavior of the fungus in a specific insect host. Both species of Entomophthora , in general, invaded and multiplied in the solid tissues and organs of the host. On the other hand, M. anisopliae and B. bassiana developed in the hemolymph and did not invade the solid organs and tissues until the host died. M. anisopliae produced chlamydospores in the larvae of Galleria mellonella .
Published Version
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