Li, J.L.; Heath, I.B.; Bauchop, T. 1990: Piromyces mae and Piromyces dumbonica, two new species of uniflagellate anaerobic chytridiomycete fungi from the hindgut of the horse and elephant. Canadian Journal of Botany 68(5): 1021-1033.
![© All rights reserved. [Image: ANA]](https://data.landcareresearch.co.nz/Image/ANA/SysPortalThumb)
![FIG. 10. Series of longitudinal sections through the kinetosome region of a zoospore of P.mae showing circumflagellar ring (cr), skirt (sk), scoop (sc), strut (st), connective (co), spur(sp), and posterior fan (pp. x 67 800. FIG. 11. Series of cross sections through thekinetosome region of a zoospore of P. mae,showing similar features to those seen in Fig. 10.The doublets are numbered in b. The three struts (st 1-3) are numbered. Note that there areprobably one or two sections missing between sections g and h. x 67 800. © All rights reserved. [Image: ANB]](https://data.landcareresearch.co.nz/Image/ANB/SysPortalThumb)
![FIG. 12. Series of longitudinal sections through the kinetosome region of a zoospore of P.dumbonica showing similar features to those seen in Fig. 10. Note position of basal plate(arrow in f) and extension of circumflagellar ring in c and d. x 67 800. FIG. 13. Series ofcross sections through the kinetosome region of a zoospore of P. dumbonica showing thecrescent shaped extension of the circumflagellar ring (af), the globular structures (d-h,arrowheads), and the props (h, arrows). The doublets are numbered in a. x 67 800. © All rights reserved. [Image: ANC]](https://data.landcareresearch.co.nz/Image/ANC/SysPortalThumb)
![© All rights reserved. [Image: ANA]](https://data.landcareresearch.co.nz/Image/ANA/SysPortalPreview)
![FIG. 10. Series of longitudinal sections through the kinetosome region of a zoospore of P.mae showing circumflagellar ring (cr), skirt (sk), scoop (sc), strut (st), connective (co), spur(sp), and posterior fan (pp. x 67 800. FIG. 11. Series of cross sections through thekinetosome region of a zoospore of P. mae,showing similar features to those seen in Fig. 10.The doublets are numbered in b. The three struts (st 1-3) are numbered. Note that there areprobably one or two sections missing between sections g and h. x 67 800. © All rights reserved. [Image: ANB]](https://data.landcareresearch.co.nz/Image/ANB/SysPortalPreview)
![FIG. 12. Series of longitudinal sections through the kinetosome region of a zoospore of P.dumbonica showing similar features to those seen in Fig. 10. Note position of basal plate(arrow in f) and extension of circumflagellar ring in c and d. x 67 800. FIG. 13. Series ofcross sections through the kinetosome region of a zoospore of P. dumbonica showing thecrescent shaped extension of the circumflagellar ring (af), the globular structures (d-h,arrowheads), and the props (h, arrows). The doublets are numbered in a. x 67 800. © All rights reserved. [Image: ANC]](https://data.landcareresearch.co.nz/Image/ANC/SysPortalPreview)
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Li, J.L.; Heath, I.B.; Bauchop, T. 1990: Piromyces mae and Piromyces dumbonica, two new species of uniflagellate anaerobic chytridiomycete fungi from the hindgut of the horse and elephant. Canadian Journal of Botany 68(5): 1021-1033.
Article
Descriptions
Sporangium spherical to elongate, 30-56 x 100-112 µm, nonpapillate, with or without elongate subsporangial swelling; rhizoids extensively branched, extending up to 600 µm long. Zoospores spherical to ovoid, 5.5-12.0 µm, usually uniflagellate, rarely biflagellate. The organelles show strongly polarized distribution in the zoospores, with tubular hydrogenosomes and nucleus in the posterior region, and ribosomal aggregates in the anterior region. Megahydrogenosomes absent from zoospores. Nuclear envelope is decorated with flat ribosomal aggregates. Circumflagellar rings show little tilt and have a C-shaped elongation. Ribosomal aggregates are either free in cytoplasm or are embeded in a homogeneous substratum in a group.
Piromyces communi (Gold) aemulans, differt zoosporis fasces ribosomaitum et annulum circum flagellarem amplificatam et hydrogenosomaita tubularia continentibus. Intestinus elephantis habitat.
ETYMOLOGY: dumbonica named after the most famous cartoon version of the host ("Dumbo") from which isolated but does not necessarily imply fungus is exclusive to that host.
TYPE: Figs. 2, 4, 9, 12, 13, 19, 23, 24, 31.
Sporangium spherical, ovoid to elongate, 26-37 x 70-125 µm, frequently papillate, with elongate subsporangial swelling; rhizoid extensively branched, extending up to 240 µm; zoospore spherical to ovoid, 2.5-11.0 µm, usually uniflagellate, rarely more up to four flagella, flagella 20-30 µm long. Organelles in zoospore show weakly polarized distribution, with ovoid and spherical hydrogenosomes and nucleus in the posterior region and ribosomal aggregates in the anterior region. Zoospores contain megahydrogenosomes up to 4 µm in length. Circumflagellar rings show little tilt and do not have a C-shaped elongation. Ribosomal aggregates are always free in the cytoplasm, not embeded in homogeneous substratum.
Piromyces communi (Gold) aemulans, differt sporangiis papillatis et zoosporis megahydrogenosomaita continentibus. Intestinus equus habitat.
ETYMOLOGY: mae is named after Chinese for horse (ma) but does not necessarily imply fungus is exclusive to that host.
TYPE: Figs. 1, 3, 5-8, 10, 11, 15-16, 20-22, 25-30, 32.
Cited scientific names
Metadata
1cb0efa8-36b9-11d5-9548-00d0592d548c
reference
Names_Fungi
18 March 2001
13 December 2002
