Fungal Flora and Rate of Decomposition of Leaf Litter at Low Temperatures

Abstract

whereas Mucor showed the opposite trend. penicillium was iore common at 4 than at 1 and 10 c. The remaining 9 genera were isorated with a frequency of less than 47o and in general were associated with particular stages oflitter breakdown.. Phialocephala, cepharosporium, Grktcraiittm, RhiaocTonia, and sterile mycelia were at a higher-frequency drrring the first 2g3 days of decomposition, whereas the frequency of Aureobasidiuml Trichodrrrrro, uid MonocilIium was greater after 283 days.

Changes in Decomposition Rate, Microbial Population and Carbohydrate Content of an Acid Peat Bog After Liming and Reclamation

“…L'6valuation de la quantitd de C (Dickinson 1974) and decomposition processes (Kilbertus 1972 (Ivarson 1974) and is (Ivarson 1914) Twinn (1914) (Ivarson 1973 (Lewis and Starkey 1968).…”

Room Temperature Isolations Can Bias against Selection of Low Temperature Microfungi in Temperate Forest Soils

“…Recently interest has been focused on rates of decomposition and timing of nutrient release in soils of temperate and alpine habitats during winter and early spring, since substantial biotic activity and weight loss from decaying plant materials have been found to occur at low temperature in these environments (Ivarson, 1973;McBrayer and Cromack, 1980;Larsen et al, 1981;Moore, 1983;Schinner, 1983;Coxson and Parkinson, 1987). Use of incubation temperatures of 0 C to 10 C to isolate fungi will facilitate identification of forest soil and litter fungi that affect nutrient immobilization and mineralization processes at low temperature.…”

“…Current ecological understanding of the structure of microfungal communities in temperate forest litter and soils has come largely from studies in Europe and North America (Jensen, 1931;Bisby et al, 1935;Ellis, 1940;Kendrick and Burges, 1962;Hering, 1965;Reddy and Knowles, 1965;Frankland, 1966;Hogg and Hudson, 1966;Okafor, 1966;Hendrix et al, 1971;Ivarson, 1973;Martinez and Ramirez, 1979;Kuter, 1986;Widden, 1986). However, in most of these studies isolation temperatures of 25 C (± 5 C) were used for incubating samples.…”

“…However, in most of these studies isolation temperatures of 25 C (± 5 C) were used for incubating samples. This temperature range favors the isolation of mesophilic species and is biased against fungi which grow optimally at warmer (Jack, 1976;Tansey and Jack, 1976) or cooler temperatures (Hintikka, 1964;Ivarson, 1973;Soderstrom, 1975). These nonmesophilic fungi, therefore, might not appear frequently on species lists even if they are abundant in the soil.…”

Decomposition of bamboo (Dendrocalamus hamiltonii Nees.) leaflitter in relation to age of jhum fallows in Northeast India

“…The system involves the cutting and burning of vegetation, and after cultivating for 1 or 2 years the land is left as abandoned fallow due to the fast depletion of nutrients. During the fallow period accumulation of mineral nutrients and organic matter takes place under the secondary growth of vegetation 6'15'2~ Though many studies have been conducted on the decomposition and microbial colonization of leaf litter 4,5,8,11,14, very little information is available from this part of India.…”