Detection of the ergosterol and episterol isomers lichesterol and fecosterol in nystatin-resistant mutants of Neurospora crassa

1974 ◽  
Vol 12 (6) ◽  
pp. 459-466 ◽  
Author(s):  
D. C. Morris ◽  
S. Safe ◽  
R. E. Subden
Keyword(s):  
Neurospora Crassa ◽  
Resistant Mutants

Induction and genetical analysis of edeine resistant mutants of Neurospora crassa

1974 ◽  
Vol 133 (2) ◽  
pp. 123-133 ◽  
Author(s):  
Maria Leonor Teles Grilo ◽  
Walter Klingmüller
Keyword(s):  
Neurospora Crassa ◽  
Genetical Analysis ◽  
Resistant Mutants

scholarly journals Isolation and characterization of cadmium-resistant mutants of Neurospora crassa

1989 ◽  
Vol 35 (3) ◽  
pp. 359-365 ◽  
Author(s):  
Wendy B. Levine ◽  
George A. Marzluf
Keyword(s):  
Linkage Group ◽  
Neurospora Crassa ◽  
Growth Conditions ◽  
Uptake System ◽  
Cadmium Resistance ◽  
Morphological Alterations ◽  
Heat Stable ◽  
Isolation And Characterization ◽  
Resistant Mutants ◽  
Energy Dependent

This study identified and characterized four cadmium-resistant mutants of Neurospora crassa. One of these mutants maps to linkage group II and the other three map to linkage group VII, whereas a naturally occurring resistant trait in a strain from Japan resides at a distinct but unmapped locus. Transport of cadmium into Neurospora cells occurs by more than a single uptake system and involves both energy-dependent and -independent components. The resistant mutants transport cadmium in the same manner as does the cadmium-sensitive wild-type strain. Cadmium resistance in these mutants does not appear to result from an increase in cytosolic heat-stable cadmium-binding proteins. Cadmium does not induce the typical heat-shock response in conidia. Under various growth conditions, each of the mutants exhibited morphological alterations, possibly involving the cell wall or plasma membrane.Key words: cadmium, Neurospora, transport, resistant mutants.

scholarly journals Deoxyglucose-resistant mutants of Neurospora crassa: isolation, mapping, and biochemical characterization.

1989 ◽  
Vol 171 (1) ◽  
pp. 53-58 ◽  
Author(s):  
K E Allen ◽  
M T McNally ◽  
H S Lowendorf ◽  
C W Slayman ◽  
S J Free
Keyword(s):  
Neurospora Crassa ◽  
Biochemical Characterization ◽  
Resistant Mutants

scholarly journals Sorbose resistant mutants in Neurospora crassa

1963 ◽  
Vol 4 (1) ◽  
Author(s):  
W. Klingmüller ◽  
F. Kaudewitz
Keyword(s):  
Neurospora Crassa ◽  
Resistant Mutants

GENETICS OF 5-FLUORODEOXYURIDINE-RESISTANT MUTANTS OF NEUROSPORA CRASSA

1973 ◽  
Vol 15 (4) ◽  
pp. 831-844 ◽  
Author(s):  
G. R. Hoffmann ◽  
H. V. Malling ◽  
T. J. Mitchell
Keyword(s):  
Neurospora Crassa ◽  
Ultraviolet Light ◽  
Resistance Genes ◽  
Linkage Studies ◽  
Linkage Groups ◽  
Mechanisms Of Resistance ◽  
Growth Tube ◽  
Light Resistance ◽  
Resistant Mutants

Mutants resistant to inhibitory concentrations of 5-fluorodeoxyuridine (FdUrd) were induced by ultraviolet light. Resistance was demonstrated by growth-tube experiments and by plating efficiencies in the presence and in the absence of FdUrd. Linkage studies involving five mutants revealed the existence of at least two loci conferring resistance to the inhibitor. These loci, designated fdu-1 and fdu-2, were assigned to Linkage Groups VII and IV, respectively. Both resistance genes are recessive to their sensitive alleles in heterokaryons. Resistance to FdUrd is stable both in the presence and in the absence of the inhibitor. Possible mechanisms of resistance to FdUrd are discussed.

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