Development of merosporangia in Linderina pennispora (Kickxellales, Kickxellaceae)
The vegetative and sporulating structures of Linderina pennispora are described using scanning and transmission electron microscopy. The vegetative hyphae and sporangiophores were regularly septate, possessed a two-layered wall, and coated with rod-shaped, 0.2-0.7 μm long, 0.15-0.25 μm wide ornament...
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2012-12-01
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| Series: | IMA Fungus |
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| Online Access: | http://www.ingentaconnect.com/content/ima/imafung/2012/00000003/00000002/art00009 |
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| author | Hussein H. El-Sheikh Mohamed E. Zain Steve T. Moss |
| author_facet | Hussein H. El-Sheikh Mohamed E. Zain Steve T. Moss |
| author_sort | Hussein H. El-Sheikh |
| collection | DOAJ |
| description | The vegetative and sporulating structures of Linderina pennispora are described using scanning and transmission electron microscopy. The vegetative hyphae and sporangiophores were regularly septate, possessed a two-layered wall, and coated with rod-shaped, 0.2-0.7 μm long, 0.15-0.25 μm wide ornamentations. The sporangiophore was erect, cylindrical, and narrower (4-8 μm) than the vegetative mycelium (8-12 μm). The mature sporocladium was ovoid to dome-shaped, sessile, non-septate, 18-24 μm diam, possessed a two-layered wall, and coated with rod-shaped ornamentations. Mature pseudophialides were ellipsoid, 2.0-2.5 μm wide, 4-7 μm long, possessed a two-layered wall, and formed in a series of concentric groups radiating from the “apex“ of the sporocladium. The pseudophialides had a round, ca. 1.5 μm diam, base with a narrower, 0.7-0.8 μm diam lobed, cylindrical neck structure in the distal region which extended to the pseudophialide neck. The merosporangia were obovate, 3-4 μm wide near the base, and narrowed distally to 2.0-2.5 μm wide, 18-23 μm long, possessed a threelayered wall, with regular surface annulation with interconnecting ridges, but lacked rod-shaped ornamentations. The merosporangia contained a single, obovate, 2.3-2.5 μm diam merosporangiospore, with a ca. 1 μm diam papilla-like base, that possessed a four-layered wall. Detached merosporangia had a single, acicular, unbranched, 3-5 μm long, ca. 0.1 μm diam “appendage“ that was attached to the merosporangiospore inner cell wall layer and passed through the septum plug to the pseudophialide. |
| format | Article |
| id | doaj-art-ba2bd33a1fc34b7bb3819580a4703262 |
| institution | Kabale University |
| issn | 2210-6340 2210-6359 |
| language | English |
| publishDate | 2012-12-01 |
| publisher | BMC |
| record_format | Article |
| series | IMA Fungus |
| spelling | doaj-art-ba2bd33a1fc34b7bb3819580a47032622025-02-02T21:55:31ZengBMCIMA Fungus2210-63402210-63592012-12-0132103108Development of merosporangia in Linderina pennispora (Kickxellales, Kickxellaceae)Hussein H. El-SheikhMohamed E. ZainSteve T. MossThe vegetative and sporulating structures of Linderina pennispora are described using scanning and transmission electron microscopy. The vegetative hyphae and sporangiophores were regularly septate, possessed a two-layered wall, and coated with rod-shaped, 0.2-0.7 μm long, 0.15-0.25 μm wide ornamentations. The sporangiophore was erect, cylindrical, and narrower (4-8 μm) than the vegetative mycelium (8-12 μm). The mature sporocladium was ovoid to dome-shaped, sessile, non-septate, 18-24 μm diam, possessed a two-layered wall, and coated with rod-shaped ornamentations. Mature pseudophialides were ellipsoid, 2.0-2.5 μm wide, 4-7 μm long, possessed a two-layered wall, and formed in a series of concentric groups radiating from the “apex“ of the sporocladium. The pseudophialides had a round, ca. 1.5 μm diam, base with a narrower, 0.7-0.8 μm diam lobed, cylindrical neck structure in the distal region which extended to the pseudophialide neck. The merosporangia were obovate, 3-4 μm wide near the base, and narrowed distally to 2.0-2.5 μm wide, 18-23 μm long, possessed a threelayered wall, with regular surface annulation with interconnecting ridges, but lacked rod-shaped ornamentations. The merosporangia contained a single, obovate, 2.3-2.5 μm diam merosporangiospore, with a ca. 1 μm diam papilla-like base, that possessed a four-layered wall. Detached merosporangia had a single, acicular, unbranched, 3-5 μm long, ca. 0.1 μm diam “appendage“ that was attached to the merosporangiospore inner cell wall layer and passed through the septum plug to the pseudophialide.http://www.ingentaconnect.com/content/ima/imafung/2012/00000003/00000002/art00009KICKXELLOMYCOTINAONTOGENYULTRASTRUCTUREZYGOMYCETES |
| spellingShingle | Hussein H. El-Sheikh Mohamed E. Zain Steve T. Moss Development of merosporangia in Linderina pennispora (Kickxellales, Kickxellaceae) IMA Fungus KICKXELLOMYCOTINA ONTOGENY ULTRASTRUCTURE ZYGOMYCETES |
| title | Development of merosporangia in Linderina pennispora (Kickxellales, Kickxellaceae) |
| title_full | Development of merosporangia in Linderina pennispora (Kickxellales, Kickxellaceae) |
| title_fullStr | Development of merosporangia in Linderina pennispora (Kickxellales, Kickxellaceae) |
| title_full_unstemmed | Development of merosporangia in Linderina pennispora (Kickxellales, Kickxellaceae) |
| title_short | Development of merosporangia in Linderina pennispora (Kickxellales, Kickxellaceae) |
| title_sort | development of merosporangia in linderina pennispora kickxellales kickxellaceae |
| topic | KICKXELLOMYCOTINA ONTOGENY ULTRASTRUCTURE ZYGOMYCETES |
| url | http://www.ingentaconnect.com/content/ima/imafung/2012/00000003/00000002/art00009 |
| work_keys_str_mv | AT husseinhelsheikh developmentofmerosporangiainlinderinapennisporakickxellaleskickxellaceae AT mohamedezain developmentofmerosporangiainlinderinapennisporakickxellaleskickxellaceae AT stevetmoss developmentofmerosporangiainlinderinapennisporakickxellaleskickxellaceae |