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Introduction to Fungi, Third Edition

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THE STRAMINIPILOUS FLAGELLUM<br />

69<br />

Fig 4.2 Unrooted phylogenetic tree of the Straminipila and members of other kingdoms, based on analyses of18S rDNA<br />

sequences.Redrawn and modified from Hausner et al. (2000), by copyright permission of the National Research Council of Canada.<br />

Fig 4.3 Ultrastructure of flagella in Straminipila. (a) Whiplash flagellum of Pythium monospermum (Oomycota).The tip is narrower<br />

than the main body of the flagellum because the two central microtubules are longer than the nine outer doublets. Arrows indicate<br />

the coating of the flagellum with very fine hairs. (b) Tinsel flagellum of Achlya colorata (Oomycota) with numerousTTHs. EachTTH<br />

ends in two fibres, one longer and thicker than the other (arrows).Original images kindly provided by M.W. Dick and I.C. Hallett.

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