The effect of gamma radiation on breaking of dormancy in Phycomyces spores.
Dormant sporangiospores of Phycomyces blakesleeanus were activated by Cs-137 gamma rays. After a dose of about 300 krad, between 80 and 90% of the spores germinated normally. However, further development of the mycelium was inhibited. Even with dry spores a partial activation was obtained. Activation by gamma rays was not accompanied by an increase in trehalase activity.
D002588:Cesium Radioisotopes; D005658:Fungi / Q000528:radiation effects*; D005947:Glucose / Q000096:biosynthesis; D010800:Phycomyces / Q000201:enzymology / Q000254:growth & development / Q000528:radiation effects*; D013172:Spores, Fungal / Q000201:enzymology / Q000254:growth & development / Q000528:radiation effects*; D014198:Trehalase / Q000378:metabolism; D014199:Trehalose / Q000378:metabolism
D002588:Cesium Radioisotopes; D014199:Trehalose; D014198:Trehalase; D005947:Glucose