Ultrastructure of the zoosporangia of Albugo ipomoeae-panduratae as revealed by conventional chemical fixation and high pressure freezing followed by freeze substitution

Mycologia

Volumn 95, Issue 1, 2003, Pages 1-10

  Mims, Charles W ^a   Richardson, Elizabeth A ^b  

^a UNIVERSITY OF GEORGIA   (United States)

^b UNIVERSITY OF GEORGIA   (United States)

Author keywords

Cryofixation; Sporangia; Transmission electron microscopy

Indexed keywords

FUNGUS; ULTRASTRUCTURE;

ALBUGO; ALBUGO CANDIDA; ALBUGO IPOMOEAE-PANDURATAE; CANDIDA; FUNGI;

EID: 0037286607     PISSN: 00275514     EISSN: None     Source Type: Journal    
DOI: 10.1080/15572536.2004.11833125     Document Type: Article

References (33)

1. Berlin JD, Bowen CC. 1964. Centrioles in the fungus Albugo candida. Amer J Bot 51:650-652.
2. Caesar-TonThat TC, Epstein L. 1991. Adhesion-reduced mutants of the wild-type Nectria haematococca: an ultrastructural comparison of the macroconidial walls. Exp Myco 15:193-205.
3. Cho CW, Fuller MS. 1989. Ultrastructural organization of freeze-substituted zoospores of Phytophthora palmivora. Can J Bot 67:1493-1499.
4. Enkerli K, Hahn MG, Mims CW. 1997. Ultrastructure of compatible and incompatible interactions of soybean roots infected with the plant pathogenic fungus Phytophthora sojae. Can J Bot 75:1493-1508.
5. Fisher KE, Lowry DS, Roberson RW. 2000. Cytoplasmic cleavage in living zoosporangia of Allomyces macrogynus. J Microsc 199:260-269.
6. Gilkey JC, Staehelin LA. 1986. Advances in ultrarapid freezing for the preservation of cellular ultrastructure. J Electr Micro Tech 3:177-210.
7. Hamer JE, Howard RJ, Chumley FG, Valent B. 1988. A mechanism for surface attachment in spores of a plant pathogenic fungus. Science 239:288-290.
8. Howard RJ. 1981. Ultrastructural analysis of hyphal tip growth in fungi: Spitzenkörper, cytoskeleton and endomembranes. J Cell Sci 48:89-103.
9. _, Aist JR. 1979. Hyphal tip ultrastructure of the fungus Fusarium: improved preservation by freeze-substitution. J Ultrastruct Res 85:224-234.
10. Hyde GJ, Guber F, Hardham AR. 1991a. Ultrastructure of zoosporogenesis in Phytophthora cinammomi. Mycol Res 95:577-591.
11. _, Lancelle S, Hepler PK, Hardham AR. 1991b. Freeze substitution reveals a new model for sporangial cleavage in Phytophthora, a result with implications for cytokinesis in other eukaryotes. J Cell Sci 100:735-746.
12. _. 1991c. Sporangial structure in Phytophthora is disrupted after high pressure freezing. Protoplasma 165:201-208.
13. Kahn SR. 1976. Ultrastructural changes in maturing sporangia of Albugo candida. Ann Bot 40:1285-1292.
14. _, 1977. Light and electron microscopic observations of sporangium development in Albugo candida (Peronosporales; Oomycetes). Can J Bot 55:730-739.
15. Knauf GM, Welter K, Müller M, Mendgen K. 1989. The haustorial host-parasite interface in rust infected leaves after high pressure freezing. Physio Mol Plant Pathol 34:519-530.
16. Mims CW, Liljebjelke KA, Richardson EA. 1995a. Surface morphology, wall structure, and initial adhesion of conidia of the plant pathogenic fungus Uncinuliella australiana. Phytopathology 85:352-358.
17. _, Richardson EA. 1999. Ultrastructure of conidium and disjunctor development in the plant pathogenic fungus Monilinia vaccinii-corymbosi. Mycologia 91:499-509.
18. _. 2000. Ultrastructure of conidiogenesis and mature conidia in the plant pathogenic Entomosporium mespili. Mycol Res 104:453-462.
19. _, Clay RP, Nicholson RL. 1995b. Ultrastructure of the conidium aging process in the plant pathogenic fungus Colletotrichum graminicola. Int J Plant Sci 156:9-18.
20. _, Roberson RW, Richardson EA. 1988. Ultrastructure of freeze-substituted and chemically fixed basidiospores of Gymnosporangium juniperi-virginianae. Mycologia 80:356-364.
21. _, Rodriguez-Lother C, Richardson EA. 2001. Ultrastructure of the host-pathogen interaction in leaves of Duchesnea indica infected by the rust fungus Frommeëlla mexicana var. indicae as revealed by high pressure freezing. Can J Bot 79:49-57.
22. _, Rogers MA, Van Dyke GC. 1997. Ultrastructure of conidia and conidium germination in the plant pathogenic fungus Alternaria cassiae. Can J Bot 75:252-260.
23. _, Sewall TC, Richardson EA. 2000. Ultrastructure of conidiogenesis and mature conidia in the plant pathogenic Entomosporium mespili. Mycol Res 104:453-462.
24. _, Snetselaar KM. 1991. Teliospore maturation in the smut fungus Sporisorium sorghi: an ultrastructural study using freeze substitution fixation. Bot Gaz 152:1-7.
25. Moor H. 1987. Theory and practice of high pressure freezing. In: Steinbrecht RA, Zierold K, eds. Cryotechniques in biological electron microscopy. Heidelberg: Springer. p 175-191.
26. Reynolds ES. 1963. The use of lead citrate at high pH as an electron opaque stain in electron microscopy. J Cell Biol 17:208-212.
27. Roberson RW. 1993. Cryofixation and freeze substitution of teliospores of Gymnosporangium clavipes: an ultrastructural investigation. Mycol Res 97:195-204.
28. _, Fuller MS. 1988. Ultrastructural aspects of the hyphal tip of Sclerotium rolfsi. Protoplasma 146:143-149.
29. Roberts DR, Mims CW, Fuller MS. 1996. Ultrastructure of the ungerminated conidium of Blumeria graminis f. sp. hordei. Can J Bot 74:231-237.
30. Rowley CR, Moran DT. 1975. A simple procedure for mounting wrinkle-free section on formvar-coated grids. Ultramicroscopy 1:151-155.
31. Shaw BD, Kuo K, Hoch HC. 1998. Germination and appressorium of Phyllostica ampelicida pycnidiospores. Mycologia 90:258-268.
32. Taylor J, Mims CW. 1991. Fungal development and host cell responses to the rust fungus Puccinia substriata var. indicae in seedling and mature leaves of susceptible and resistant pearl millet. Can J Bot 79:49-57.
33. Van Dyke GC, Mims CW. 1991. Ultrastructure of conidia, conidium germination, and appressorium formation in the plant pathogenic fungus Colletotrichum truncatum. Can J Bot 69:2455-2467.