Ultrastructure and evolution of ballistosporic basidiospores

Basidiospores oiCoprinus cinereus were examined before and during spore discharge using light microscopy, and SEM of frozen-hydrated and other preparations. The process of droplet development at the hilar appendix was divided into three stages: pre-droplet, early and late enlargement. The fully expanded droplet was preserved only in frozen-hydrated specimens. Two-step droplet enlargement was also observed with TEM in Boletus rubinellus, and the droplet at the early enlargement stage was enclosed by a trilaminate membrane. The droplet was not observed in Auricularia species, but basidiospore preservation for SEM was optimum in Auricularia auricula with frozen-hydrated preparations. The hilar appendix of Auricularia fuscosuccinea as studied by TEM was simple compared with those of the Homobasidiomycetes. The implications of the data for evolution of the ballistosporic basidiospore and the discharge mechanism are considered.

[1]  A. H. Reginald Buller,et al.  Researches on Fungi , 2009 .

[2]  D. Savile Phylogeny of the Basidiomycetes , 2006, Nature.

[3]  D. McLaughlin,et al.  Ultrastructure of meiosis in Ustilago maydis , 1984 .

[4]  D. McLaughlin,et al.  Postmeiotic Mitosis, Basidiospore Development, and Septation in Ustilago Maydis , 1984 .

[5]  C. Ingold,et al.  Ballistospore discharge in Itersonilia perplexans , 1984 .

[6]  N. Read A scanning electron microscopic study of the external features of perithecium development in Sordaria humana , 1983 .

[7]  C. Ingold A view of the basidium , 1983 .

[8]  N. Read,et al.  A comparison of preparative techniques for the examination of the external morphology of fungal material with the scanning electron microscope , 1983 .

[9]  A. Beckett,et al.  Low temperature scanning electron microscopy of fungal material , 1982 .

[10]  D. McLaughlin The spindle pole body and postmeiotic mitosis in Auricularia fuscosuccinea , 1981 .

[11]  C. Mims Ultrastructure of teliospore germination and basidiospore formation in the rust fungus Gymnosporangium clavipes , 1981 .

[12]  D. McLaughlin ULTRASTRUCTURE OF THE METABASIDIUM OF AURICULARIA FUSCOSUCCINEA , 1980 .

[13]  P. H. Gregory Speculations on basidiospore liberation , 1979 .

[14]  H. Burge Basidiospore Structure and Development in the Genus Russula , 1979 .

[15]  D. McLaughlin,et al.  FORMATION OF THE HILAR APPENDIX IN BASIDIOSPORES OF BOLETUS RUBINELLUS , 1979 .

[16]  T. Young,et al.  The gasteroid Russulales , 1979 .

[17]  David J. McLaughlin Ultrastructural localization of carbohydrate in the hymenium and subhymenium ofCoprinus , 1974, Protoplasma.

[18]  D. J. Niederpruem,et al.  Ultrastructure of Quiescent and Germinated Basidiospores and Oidia of Coprinus Lagopus , 1971 .

[19]  C. Ingold,et al.  Spore discharge in fungi under very high surrounding air-pressure, and the bubble-theory of ballistospore release. , 1968, Mycologia.

[20]  M. Madelin,et al.  The fungus spore , 1967 .

[21]  K. Wells Ultrastructural Features of Developing and Mature Basidia and Basidiospores of Schizophyllum Commune , 1965 .

[22]  D. Savile,et al.  Spore Discharge in Basidiomycetes: A Unified Theory , 1965, Science.

[23]  L. S. Olive Spore Discharge Mechanism in Basidiomycetes , 1964, Science.

[24]  M. H. Zoberi Effect of temperature and humidity on ballistospore discharge , 1964 .

[25]  E. Corner STUDIES IN THE BASIDIUM , 1948 .

[26]  G. Baker A Study of the Genus Helicogloea , 1936 .

[27]  C. Ingold,et al.  Origin of the liquid in Buller's drop , 1984 .

[28]  D. McLaughlin,et al.  BASIDIOSPOROGENESIS IN BOLETUS RUBINELLUS. I. STERIGMAL INITIATION AND EARLY SPORE DEVELOPMENT , 1984 .

[29]  K. Wells,et al.  Basidium and Basidiocarp , 1982, Springer Series in Microbiology.

[30]  D. McLaughlin Ultrastructure and Cytochemistry of Basidial and Basidiospore Development , 1982 .

[31]  F. Oberwinkler The Significance of the Morphology of the Basidium in the Phylogeny of Basidiomycetes , 1982 .

[32]  D. McLaughlin BASIDIOSPORE INITIATION AND EARLY DEVELOPMENT IN COPRINUS CINEREUS , 1977 .

[33]  R. Hugueney Morphologie, ultrastructure et développement de l'apicule des spores de quelques Coprinacées : Etude particulière du punctum lacrymans , 1975 .

[34]  R. Singer,et al.  Some Agaricales from the Congo , 1967 .

[35]  E. Bessey Morphology and taxonomy of fungi , 1950 .

[36]  C. T. Ingold,et al.  Spore Discharge in Land Plants , 1939, Nature.

[37]  R. Whelden Cytological Studies in the Tremellaceae. IV. Protodontia and Tremellodendron , 1937 .

[38]  R. Whelden OBSERVATIONS ON THE CYTOLOGY OF SEBACINA GLOBOSPORA N. SP , 1935 .