Aspergillus Newsletter, Volume 7

TABLE OF CONTENTS

Mailing List    pages 1-5

Publications    page 6

J.H. Croft      page 7
Control of perithecial production

J.H. Croft      pages 7-8
Recovery of unstable variants after acridine treatment

A.C. Butcher      page 8
Crossing ability in A. nidulans

A. Upshall     pages 8-9
Persistent multiple somatic segregation

A.P.J. Trinci & C. Whittaker     pages 9-10
Stimulation of spore germination in Aspergillus nidulans by carbon dioxide

C.F. Roberts, R.A. Hutter & J. DeMoss     pages 10-11
Analysis of the tryptophan path in A. nidulans

E. Pees     pages 11-12
Lysine, histidine, and isoleucine mutants.

A.J. Clutterbuck & U.K. Sinha     pages 12-13
N-methyl-N'-nitro-N-nitrosoguanidine (NTG) as a mutagen for Aspergillus nidulans

C. Herman & A.J. Clutterbuck     pages 13-14
A method of selection of auxotrophs by means of "spidery" growth.

E. Kafer     pages 14-15
Multiple mitotic crossing over in the centromere region or diffuse centromeres?

Preliminary Notes

C. Morpurgo & C. Calvori     page 16
Variable frequency of back mutation in different genomes

G. Morpurgo & L. Volterra     page 16
Fine analysis of mitotic intracistronic crossing-over in Aspergillus nidulans.

A.M. Millington-Ward      pages 16-17
A Replicator for Random Colonies

E. Forbes & U.K. Sinha     page 17
Location of some teperature sensitive mutants

B.W. Bainbridge, H. Dalton, & J.H. Walpole     page 18
Identification of the arginosuccinase gene

B.W. Bainbridge     page 19
Table of Located or Partially Located Mutants

B.W. Bainbridge     pages 20-21
A Revised Map of Linkage Group III

J.A. Roper     page 22
Culture temperature and biotin requirement in Aspergillus.

B.H. Nga     pages 22-23
Vegetative Instabillity Associated with Chromosome Duplication in Aspergillus nidulans.

C. Ball     pages 23-25
Further studies on instability associated with gene suppression.

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