Description
Amoeboid monopodia! cells with one flagellum , long or short , active or inactive, and always attached to an anterior nucleus . There is no posterior uroid , and there are several nuclei in one species . The nucleus has a large , central IONTIDA endosome , and mitosis includes division of the endosome. Mastigina hylae, which is endocom- the cape covering the nucleus (N) are numerous ; they arise from a MTOC at the base of the basal e body (b) and some form a lateral ribbon (r). The flagellum (F) is composed of microtubules not arranged in a 9+2 configuration. Bar=1 ~m . (from Brugerolle, 1991 a) mensa! in intestine of toads, has solitary basal bodies connected to the nucleus by a cape or cone of microtubules (Figs . 2b ,c and Fig. 5). The single flagellum may not have the usual 9+2 arrangement of microtubules in the axoneme. A lateral ribbon of microtubules extends from the PELOBIONTI basal body to the ce ll surface . Secondary nuclei , which occur in large ce lls, bear one basal body without a fl agel lum and have a few associated microtubules . Some spec ies may have a polymorphic life cycle (Goldschmidt, 1907). Electron microscopy has been carried out by Brugerolle (1982, 1991 a). About 6 speci es have been reported . Refs . Brugerolle , 1982 , 1991 a; Collin, 1913; Goldschmidt , 1907; Penard, 1909. large pseudopod and the smal l, posterior uroid . Bar=250 IJm . (courtesy of C. K. Stumm ) su rface and the posterior uroid. Bar=10 IJm . (fro m Griffin , 1988)
Type species
Mastigina chlamys Frenzel , 1897 -
Figures
Raw text
Amoeboid monopodia! cells with one flagellum , long or short , active or inactive, and always attached to an anterior nucleus . There is no posterior uroid , and there are several nuclei in one species . The nucleus has a large , central IONTIDA endosome , and mitosis includes division of the endosome. Mastigina hylae, which is endocom- the cape covering the nucleus (N) are numerous ; they arise from a MTOC at the base of the basal e body (b) and some form a lateral ribbon (r). The flagellum (F) is composed of microtubules not arranged in a 9+2 configuration. Bar=1 ~m . (from Brugerolle, 1991 a) mensa! in intestine of toads, has solitary basal bodies connected to the nucleus by a cape or cone of microtubules (Figs . 2b ,c and Fig. 5). The single flagellum may not have the usual 9+2 arrangement of microtubules in the axoneme. A lateral ribbon of microtubules extends from the PELOBIONTI basal body to the ce ll surface . Secondary nuclei , which occur in large ce lls, bear one basal body without a fl agel lum and have a few associated microtubules . Some spec ies may have a polymorphic life cycle (Goldschmidt, 1907). Electron microscopy has been carried out by Brugerolle (1982, 1991 a). About 6 speci es have been reported . Refs . Brugerolle , 1982 , 1991 a; Collin, 1913; Goldschmidt , 1907; Penard, 1909. large pseudopod and the smal l, posterior uroid . Bar=250 IJm . (courtesy of C. K. Stumm ) su rface and the posterior uroid. Bar=10 IJm . (fro m Griffin , 1988)