THE CYTOGENETIC AND PHYSIOLOGIC EFFECT OF ETHYLENEMINE AND $gamma$-RAYS ON THE SEEDS OF WHEAT

Journal Article · Sat Jan 21 04:00:00 EST 1961 · Doklady Akad. Nauk S.S.S.R.

OSTI ID:4020623

Zo, N N

Physiological and cytogenetic effects of ethylenimine on soft summer wheat seed were compared with the effects of gamma rays. The character of chromosome structure in mutants and its influence on seed germinatinn and early sprout growth were studied. The tests were ncade with aqueous ethylenimine solutions of 0.01. 0.06. 0.08. 0.1. 0.12. 0.15. 0.2. and 0.3%; the gamma rays were given in 2.5. 5.0. and 10 kr doses. Ethylenimine concentrations of 0.01% slowed sprout growth without influencing germination. with 0.08% concentrations nearly 70% of the sprouts broke through the coleoptile and continued to grow at a rate slightly below controls. At 0.2 to 0.3% concentrations, only separate seeds germinated. Gamma doses of 2.5 and 5.0 kr did not alter growth or germination. At 10 kr all the seeds germinated but the sprouts grew slower than controls. Further cytological studies were made with roots fixed 72 hours following wetting in ethylenimine and gamma irradiation in water. The results indicate different fragmentations and breakages. The difference may be related to the long-range effects of ethylenimine and the short term effects of gamma rays acting at different stages in cell division. (R.V.J.)

• Research Organization: Inst. of Biological Physics, Academy of Sciences, USSR
• NSA Number: NSA-15-016829
• OSTI ID: 4020623
• Journal Information: Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 136
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

BIOLOGY AND MEDICINE