Relation between mutation yield and cell lethality over a wide range of x- ray and fission-neutron doses in maize

Book · Mon Jan 01 04:00:00 EST 1973

OSTI ID:4342016

Smith, H H; Rossi, H H; Kellerer, A M

From symposium on the effects of neutron irradiation upon cell function; Nuremberg, Germany (22 Oct 1973). Seeds of a genetic stock of maize (Zea mays L.) heterozygous at the yellow-green locus. Yg/sub 2//yg/sub 2/, were used in all experiments. The frequency of yellow-green streaks or sectors in the leaves of seedlings grown from irradiated seeds was used as a measure of radioinduced genetic effects. The seeds containing 6.7% water were irradiated with x rays at a dose rate of 1,658 to 1,845 rad/ min or with fission neutrons at a dose rate of 27.5 to 198 rad/min. The irradiated seeds, together with unirradiated controls, were sown immediately in moist soil. When fully mature, the 4th and afterwards the 5th leaf was harvested and scored for frequency of yellow-green sectors. An attempt was made to relate the results obtained to microdosimetric data for x rays and neutrons. (GE)

• Research Organization: Brookhaven National Lab., Upton, NY
• NSA Number: NSA-29-018592
• OSTI ID: 4342016
• Report Number(s): SM--179/28
• Country of Publication: Germany
• Language: English

Related Subjects

*FISSION NEUTRONS-- MICRODOSIMETRY
*MAIZE-- GENETIC RADIATION EFFECTS
*MUTATIONS-- RADIOINDUCTION
*X RADIATION-- MICRODOSIMETRY
IRRADIATION
LEAVES
MORTALITY
N48410* --Life Sciences--Radiation Effects on Plants--Basic Studies
SEEDLINGS
SEEDS