Decomposition of filter paper cellulose by thermophilic fungi acting singly, in combination, and in sequence

Deacon, J.W.

doi:10.1016/s0007-1536(85)80261-8

Cited by 43 publications

(38 citation statements)

References 15 publications

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“…Since this species was found to be highly active in cellulase production so this species was used for this study. The previous isolate was grown on liquid medium (Deacon, 1985). Fifty milliliters of the medium were dispensed into each 250 ml Erlenmeyer flask and each flask was inoculated with an agar mycelial disc (10 mm diameter) of the mould obtained from 7 days old fungal cultures growing on the solid basal medium.…”

Section: Factors Affecting Cellulase Productionmentioning

confidence: 99%

“…The test isolate (A. flavus) was grown on the basal medium of Deacon (1985). The initial pH of the medium was adjusted with 0.1 N NaOH or 0.1 N HCL to different values ranging from 2 to 14.…”

Section: Effect Of Ph Valuesmentioning

confidence: 99%

“…The basal medium (Deacon, 1985) with pH 8 (the best pH for cellulase production) was supplemented with 1% of one of the following carbon sources: glucose, fructose, lactose, sucrose, cellulose, starch and carboxymethyl cellulose. The flasks were inoculated with A. flavus and incubated at 30°C (the best temperature of C1 and Cx enzymes production) for 8 days (the best incubation periods for C1 and Cx enzymes, respectively) and the cultures were filtered.…”

Section: Effect Of Different Carbon Sourcesmentioning

confidence: 99%

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Seasonal variation of air, soil and leaf surface fungi of broad bean and cellulolytic ability in Upper Egypt

El-Shahir¹

2014

Afr. J. Plant Sci.

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Seventy-five species and 3 species varieties belonging to 21 fungal genera were collected from air, soil and leaf surface of broad bean plant on dicholran chloramphenicol malt extract agar (DCMA) and dichloran Rosebengal chloramphenicol agar (DRBC) at 28°C. The results obtained from leaf surface (phyllosphere and phylloplane), soil and atmosphere were basically similar in the two types of media and the most common fungi were: Aspergillus flavus, Aspergillus fumigatus, Aspergillus niger, Cladosporium cladosporioides, Cladosporium sphaerospermum and Drechslera neergaardii. The monthly counts of these fungi on two types of media irregularly fluctuated giving maxima value at various months. A. flavus was the highest fungi that produced both exo-and endo-ß-1,4-glucanases among the 9 tested isolates. Maximum production of two enzymes by A. flavus was 8 and 6 days after incubation at 30°C with culture medium containing glucose and cellulose as carbon sources and sodium nitrate as nitrogen source and initially adjusted to pH 6.

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Section: Factors Affecting Cellulase Productionmentioning

confidence: 99%

Section: Effect Of Ph Valuesmentioning

confidence: 99%

Section: Effect Of Different Carbon Sourcesmentioning

confidence: 99%

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Seasonal variation of air, soil and leaf surface fungi of broad bean and cellulolytic ability in Upper Egypt

El-Shahir¹

2014

Afr. J. Plant Sci.

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“…La mesure de l'activité des champignons est basée sur la perte de poids de substrat, cellulose ou feuilles mortes (SINGH, 1982 ;DEACON, 1985). Dans des flacons laveurs de 250 ml, 100 ml d'une solution de culture composée de sels minéraux et vitamines (DEACON, 1985) sont introduits.…”

Section: Etude Quantitativeunclassified

“…Dans des flacons laveurs de 250 ml, 100 ml d'une solution de culture composée de sels minéraux et vitamines (DEACON, 1985) sont introduits. Pour la première expérience, 2 g de feuillets de cellulose (papier filtre Durieux n c lll) pesés avec précision sont ajoutés au flacon.…”

Section: Etude Quantitativeunclassified

Hyphomycètes aquatiques : importance dans la décomposition des litières

Chauvet¹,

Merce²

2005

rseau

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Les auteurs comparent les communautés d'hyphomycètes aquatiques récoltés dans l'écume de 7 cours d'eau du Béarn et des Landes. L'abondance de spores observées dans les deux régions diffère considérablement (174-1175 spores/µl en Béarn et 2-57 spores/µl dans les Landes) tandis que les variations de richesse spécifique apparaissent faibles. L'influence de la végétation riveraine et du pH de l'eau est discutée.Des expériences de dégradation in vitro montrent que des souches isolées de Tetracladium marchalianum, Heliscus lugdunensis et dans une moindre mesure Anguillospora longissima présentent une activité cellulolytique. T. marchalianum et H. lugdunensis, participent activement à la décomposition de litière de saule blanc, avec respectivement 21,7 et 18,2 % de dégradation après 5 semaines à 18°C.Aquatic hyphomycete communities from the foam of seven streams in the Bearn and Landes regions of France were compared at four different dates. The total number of species was similar in the two regions, but common species (> 5 spores/µl) in the Bearn were twice as abundant as in the Landes. Mean spore concentrations in the Bearn and Landes streams were in a ratio of 10 : 1. In the Bearn, spore concentration and the number of fungal species increased considerably in autumn, subsequent to the fall of leaf litter into the streams. Analysis of variance of spore concentrations (original or transformed data) in the two regions showed that date, station and the interaction of these two factors were highly significant parameters (P ANOVA < 0.0001). Alatospora acuminate was the commonest species both in the Bearn (77 % annual mean) and in the Landes (41 %). After A. acuminata, Clavatospora stellata (7 %) and Tetracladium marchalianum (4 %,) in the Bearn, Flagellospora curvula (28 %) and Clavastospora longibrachiata (20 %) in the Landes were the dominant species of the mycoflora. Five species new to France were noted : Actinospora megalospora Ingold, Camposporium pellucidum (Grave) Hugues, Diplocladiella scalaroides Arnaud, Flabellospora acuminata Descals and Triscelophorus monosporus Ingold. The difference in fungal richness between the two regions was suggested to be due to the composition of the riparian vegetation, the phenology of the litter fall, the presence (or absence) of plant matter accumulation in the stream, and the pH of the stream water. Litter deposits in the Landes streams were rare and made up exclusivey of pine needles, the few deciduous leaves which fall being exported to surrounding lakes and to the ocean. Water pH was always low (5.0-5.5). The riparian vegetation of the Bearn streams, on the contrary, was abundant and varied Cash, common locust-tree, alder, willow, oak, chestnut, poplar). Moreover the neutral or weakly acid pH of the Bearn streams (6.3-7.0) seemed to favour fungal diversity (cf. BÄRLOCHER and ROSSET, 1981; WOOD-EGGENSCHWILLER and BARLOCHER, 1983).Single spore isolates of Anguillospora langissima (de Wild.) Ingold, Heliscus lugdunensis Saccardo et Therry and Tetraclacium marchalianum De Wild wer...

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Fungal Ecology: Saprotrophs

Deacon¹

2005

Fungal Biology

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Decomposition of filter paper cellulose by thermophilic fungi acting singly, in combination, and in sequence

Cited by 43 publications

References 15 publications

Seasonal variation of air, soil and leaf surface fungi of broad bean and cellulolytic ability in Upper Egypt

Seasonal variation of air, soil and leaf surface fungi of broad bean and cellulolytic ability in Upper Egypt

Hyphomycètes aquatiques : importance dans la décomposition des litières

Fungal Ecology: Saprotrophs

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