Attenuation of radiosensitivity in trichoderma viride through culturing on extracts of more radioresistant fungal sp

The response of Trichoderma viride and Fusarium moniliforme to gamma radiation was investigated. Trichoderma viride was sensitive and a dose of 2.0 KGy was lethal, while F. Moniliforme was resistant to doses up to 4.0 KGy. Inoculation of Trichoderma viride conidia on media amended with extracts from F. moniliforme cultures as well as filtrate produced more radioresistant cultures of Trichoderma. So, it could be suggested that the mycelial cells of Fusarium contained endogenous compounds [s] which were responsible for radioresistance

Effect of malathion on distribution and metabolism of C 14 - formate in penicillium notatum

Data presented in this investigation demonstrated that the outcome in dry weight, respiratory CO214 and total protein content of Penicillium notatum was significantly suppressed by malathion treatments, while the levels of free amino acids showed a remarkable increase. The quantitative estimation of amino acids revealed that malathion favored the accumulation of some amino acids. The incorporation percentage of radioactive C14 formate showed variable values after the organism received the insecticide. However, C14 was accumulated mainly in free amino acids. On the other hand, C14 participation in CO2 ranked first in the order of incorporation, whereas it recorded the highest values of incorporated activity. Incorporation of C14 formate into total protein was suppressed. The unextracted bound residues of C14 formate decreased with the increase in malathion concentrations