Ultrastructure of Asci and Ascospores of Massarina velatospora from Intertidal Mangrove Wood
-
D. W. T. Au
Abstract
A transmission electron microscope investigation of the asci and ascospores of Massarina velatospora was undertaken using material collected from Boracay, Philippines. Our collection agrees with the type material although the ascospores were predominantly 1-septate. It was collected on wood of Sonneratia sp. that had been heavily attacked by molluscan borers. The asci are bitunicate with a thick (2–4 μm), fibrillar endoascus and a narrow ectoascus (100–300 nm) that is thickened at the apex with an ocular chamber in mature asci. Ascospore walls comprise a mesosporium, an electron-dense episporium surrounded by an exosporial mucilaginous sheath and bounded by a delimiting membrane that ruptures in water. A comparison of the ultrastructure of M. velatospora and other aquatic Massarina species is made.
Copyright © 2001 by Walter de Gruyter GmbH & Co. KG
Articles in the same Issue
- Phosphoenolypyruvate Carboxykinase from the Marine Diatom Skeletonema costatum and the Phaeophyte Laminaria setchellii. II. Immunological Characterization and Subcellular Localization
- Dispersal of Caulerpa racemosa Fragments in the Mediterranean: Lack of Detachment Time Effect on Establishment
- Additions to the Marine Algal (Seaweed) Flora of the Azores
- Effect of Nutrient Availability on Macrocystis pyrifera Recruitment and Survival near Its Southern Limit off Baja California
- Reproductive Allocation and Strategy of Sargassum elegans Suhr and Sargassum incisifolium (Turner) C. Agardh from Reunion Rocks, KwaZulu-Natal, South Africa
- Heydrichia homalopasta sp. nov. (Sporolithaceae, Rhodophyta) from Australia
- The Structure of the Polysaccharide from Hymenocladia sanguinea through 13C NMR Spectroscopy
- Evaluation of the Structure of the Polysaccharide from Myriogramme denticulata as Determined by 13C NMR Spectroscopy
- Ultrastructure of Asci and Ascospores of Massarina velatospora from Intertidal Mangrove Wood
- Two Species of Sphacelaria (Sphacelariales, Phaeophyceae), S. solitaria (Pringsheim) Kylin and S. recurva sp. nov. from Korea
- Spore-Expulsion Rates and Extents of Blade Occupation by Ascomycetes of the Smooth-Cordgrass Standing-Decay System
- Lipid and Fatty Acid Composition during Vegetative and Resting Stages of the Marine Diatom Chaetoceros salsugineus
- The Change in Macroalgal Assemblages through the Saldanha Bay/Langebaan Lagoon Ecosystem (South Africa)
Articles in the same Issue
- Phosphoenolypyruvate Carboxykinase from the Marine Diatom Skeletonema costatum and the Phaeophyte Laminaria setchellii. II. Immunological Characterization and Subcellular Localization
- Dispersal of Caulerpa racemosa Fragments in the Mediterranean: Lack of Detachment Time Effect on Establishment
- Additions to the Marine Algal (Seaweed) Flora of the Azores
- Effect of Nutrient Availability on Macrocystis pyrifera Recruitment and Survival near Its Southern Limit off Baja California
- Reproductive Allocation and Strategy of Sargassum elegans Suhr and Sargassum incisifolium (Turner) C. Agardh from Reunion Rocks, KwaZulu-Natal, South Africa
- Heydrichia homalopasta sp. nov. (Sporolithaceae, Rhodophyta) from Australia
- The Structure of the Polysaccharide from Hymenocladia sanguinea through 13C NMR Spectroscopy
- Evaluation of the Structure of the Polysaccharide from Myriogramme denticulata as Determined by 13C NMR Spectroscopy
- Ultrastructure of Asci and Ascospores of Massarina velatospora from Intertidal Mangrove Wood
- Two Species of Sphacelaria (Sphacelariales, Phaeophyceae), S. solitaria (Pringsheim) Kylin and S. recurva sp. nov. from Korea
- Spore-Expulsion Rates and Extents of Blade Occupation by Ascomycetes of the Smooth-Cordgrass Standing-Decay System
- Lipid and Fatty Acid Composition during Vegetative and Resting Stages of the Marine Diatom Chaetoceros salsugineus
- The Change in Macroalgal Assemblages through the Saldanha Bay/Langebaan Lagoon Ecosystem (South Africa)
