Scanning electron microscopic investigations of gas chromatographic porous polymer sorbents

1971 ◽  
Vol 4 (3) ◽  
pp. 113-118 ◽  
Author(s):  
K. Sakodynsky ◽  
L. Panina
Keyword(s):  
Porous Polymer ◽  
Electron Microscopic ◽  
Polymer Sorbents ◽  
Scanning Electron Microscopic ◽  
Microscopic Investigations ◽  
Scanning Electron

The thallic mode of conidiogenesis in the Fungi Imperfecti

1975 ◽  
Vol 53 (24) ◽  
pp. 2983-3001 ◽  
Author(s):  
Garry T. Cole
Keyword(s):  
Extension Growth ◽  
Electron Microscopic ◽  
Conidium Formation ◽  
Scanning Electron Microscopic ◽  
Simple Conversion ◽  
Trichosporon Beigelii ◽  
Fungi Imperfecti ◽  
Microscopic Investigations ◽  
Scanning Electron

The current developmental concept of the thallic mode of conidiogenesis essentially involves the simple conversion and disarticulation of preexisting hyphal elements, in which extension growth has ceased, into conidia which are delimited by transverse septa. Two kinds of thallic development were originally interpreted from light microscopic investigations. In this paper, holothallic conidium formation, which is demonstrated by Geotricluim candidum, and enterothallic development, which is exemplified by Sporendonema purpurascens and Briosia cubispora, are compared and ultrastructural and karyological characteristics of these mechanisms of conidiogenesis are illustrated. Scanning electron microscopic analyses of conidium formation in Oidiodendron trancatum and Trichosporon beigelii and light microscopic investigations of Sympodiella sp. and Amblyosporium spongiosum have revealed that additional variations exist in the thallic mode of conidium ontogeny. On the basis of these new data, and a consideration of other species of imperfect fungi which demonstrate similar mechanisms of conidiogenesis, a revised concept of thallic development is presented.

Light and scanning electron microscopic investigations on MiteStop®-treated poultry red mites

2010 ◽  
Vol 107 (2) ◽  
pp. 433-437 ◽  
Author(s):  
Nina Locher ◽  
Sven Klimpel ◽  
Fathy Abdel-Ghaffar ◽  
Khaled A. S. Al Rasheid ◽  
Heinz Mehlhorn
Keyword(s):  
Electron Microscopic ◽  
Scanning Electron Microscopic ◽  
Poultry Red Mites ◽  
Microscopic Investigations ◽  
Scanning Electron
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