An Ultrastructural Study of the Episporontal Inclusions Produced during Octosporogony by Five Species/Isolates of Vairimorpha (Microspora: Microsporida)

A new microsporidian species, Vairimorpha ocinarae n. sp., isolated from Ocinara lida Moore (Lepidoptera: Bombycidae) in Taiwan

“…15), but they did not develop into an amorphous mass or meshwork like that observed in V. necatrix (Moore and Brooks, 1992;Mitchell and Cali, 1993), V. disparis (Vavra et al, 2006), and V. heterosporum (Moore and Brooks, 1994). Moore and Brooks (1994) proposed that episporontal inclusions may be used as taxonomic features among species. In our case, episporontal inclusions of V. ocinarae are actually different from other related Vairimorpha species.…”

“…Typically, the fat body is the primary target tissue for lepidopteran Vairimorpha species, and cells are often hypertrophic and filled with both diplokaryotic spores and octospores (Canning et al, 1999;Darwish et al, 1989;Mitchell and Cali, 1993;Moore and Brooks, 1992;Moore and Brooks, 1994), unlike the fat body atrophy observed in V. ocinarae infections.…”

“…16B), similar to those of other Vairimorpha species (Table 3). Among isolates, this characteristic may present as different types (Moore and Brooks, 1994).…”