Cellulolytic activity and fungal nutrition with special reference to decomposition of bacterial cellulose by Fusarium culmorum

1959 ◽  
Vol 35 (2) ◽  
pp. 122-134
Author(s):  
C. S. Venkata Ram
Keyword(s):  
Special Reference ◽  
Bacterial Cellulose ◽  
Fusarium Culmorum ◽  
Cellulolytic Activity ◽  
Fungal Nutrition

A SLIDE TECHNIQUE FOR THE STUDY OF FUNGI AND ACTINOMYCETES IN SOIL WITH SPECIAL REFERENCE TO HELMINTHOSPORIUM SATIVUM

1953 ◽  
Vol 31 (6) ◽  
pp. 718-724 ◽  
Author(s):  
S. H. F. Chinn
Keyword(s):  
Special Reference ◽  
Soybean Meal ◽  
Fusarium Culmorum ◽  
Natural Soil ◽  
Penicillium Notatum ◽  
Amended Soils ◽  
Helminthosporium Sativum ◽  
Stachybotrys Atra ◽  
Slide Technique ◽  
Germ Tubes

A slide technique suitable for studying the behavior of fungi and actinomycetes both qualitatively and quantitatively in soil is described. Besides Helminthosporium sativum, eight other fungi and one actinomycete were used to demonstrate the applicability of the method which was used for both natural and soybean meal amended soils. In the natural soil spores of Penicillium notatum, Stachybotrys atra, and the actinomycete only germinated. However, lysis or disintegration of the germ tubes of the two fungi was observed on the fourth day. Growth of the actinomycete was continuous to at least the seventh day. In the amended soil only one fungus failed to germinate. Of those that germinated, only Fusarium culmorum and the actinomycete were capable of continued growth and sporulation. Lysis or disintegration of the germ tubes of the others was noticed on the fourth day.

Effect of defaunation and refaunation of the rumen on cellulolytic activity in vitro with or without ammonia supplementation

1991 ◽  
Vol 71 (3) ◽  
pp. 913-917 ◽  
Author(s):  
K. Ushida ◽  
Y. Kojima
Keyword(s):  
Special Reference ◽  
Key Words ◽  
Ammonium Sulfate ◽  
Ammonium Chloride ◽  
Chloride Solution ◽  
Cellulolytic Activity ◽  
Cellulose Digestion ◽  
Batch System ◽  
Cellulose Digestibility

The effect of defaunation and refaunation of the rumen on cellulose digestion in vitro was examined with special reference to ammonia supply. Digestion of cellulose by DF and RF rumen populations was measured using a simple in vitro batch system with or without ammonia supplementation. Ammonia was supplied to the cultures either as ammonium sulfate or ammonium chloride solution. Cellulose digestion was increased by the presence of either protozoa or ammonia. The protozoal effect was evident in the absence of ammonia supplementation and the ammonia effect was evident in the absence of protozoa. The form of the ammonia supplement did not affect cellulose digestibility. Key words: Protozoa, ammonia, cellulose digestion

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