[Characteristics of micromycets Fusarium oxysporum recovered from an artificial soil for space greenhouse after chronic exposure to low doses of ionizing radiation].
Growth and development of Fusarium oxysporum intact strain and strains subjected to irradiation by low gamma-neutron doses were studied during cultivation on intact substrate and substrate irradiated by a gamma-source at 29 microGy. There was a striking difference in growth and sporification between the strains cultivated on irradiated and intact substrates. Irradiated Fusarium oxysporum strains exhibited manifest antagonism to one another and the non-irradiated strain. Electroconductivity of substrate after gamma-irradiation at low doses was noted to slow down markedly. The authors come to the conclusion that nutrient molecules may become more available to micromycets because of alteration of proton activity in consequence of preliminary irradiation.
Smolianina
S O
SO
Tsetlin
V V
VV
Berkovich
Iu A
IuA
Korsak
I V
IV
D004307:Dose-Response Relationship, Radiation; D005670:Fusarium / Q000254:growth & development* / Q000528:radiation effects; D017752:Greenhouse Effect; D066298:In Vitro Techniques; D011839:Radiation, Ionizing; D013026:Space Flight; D018561:Space Simulation; D013172:Spores, Fungal / Q000254:growth & development / Q000528:radiation effects