Abstract
Barley seeds were treated with ethyl methanesulphonate (EMS), washed for 24 h, redried to 15 per cent moisture and stored at 25°C. The criteria used for expressing the effect of storage were chromosomal aberrations in root tips, M1 germination, M1 seedling height, M1 survival and the frequency of M2 chlorophyll mutants. The increase of the M1 biological injury due to storage was not influenced:
-
a)
by applying EMS solutions at pH 2, pH 7 and pH 10,
-
b)
by lowering the EMS concentration and increasing the treatment time,
-
c)
by different variations of washing with water and by washings with 0.005 N NaOH, 200 mM cysteine or 200 mM thiourea. The rate of the increase of the M1 injury due to storage depends on the EMS dose. With a decrease in the EMS dose the storage effect is more delayed.
Abstract
Semena ječmene byla ovlivněna ethylmethansulfonátem (EMS), promývána po dobu 24 h, vysušena na 15% vlhkost a skladována při teplotě 25°C. Biologický účinek skladování byl vyjádřen výškou M1 semenáčků, M1 klíčivostí, M1 přežitím a frekvencí M2 chlorofylových mutant. Zvýšení biologického poškození v M1 generaci po skladování nebylo ovlivněno: a) aplikací roztoků EMS při pH 2, pH 7 a pH 10, b) snížením koncentrace EMS a zvýšením doby působení, c) různými typy promývání vodou a promýváním 0.005 N NaOH, 200 mM cysteinem nebo 200 mM thiomočovinou, za předpokladu, že doba promývání byla 24 h.
Rychlost zvýšení M1 poškození po skladování silně závisí na dávce EMS. Se sníženou dávkou EMS je projev skladovacího účinku opoždčný.
Similar content being viewed by others
References
Auerbach, Ch., Ramsay, D.: Analysis of a case of mutagen specificity inNeurospora crassa II. Interaction between treatments with diepoxybutane (DEB) and ultraviolet light.— Molec. gen. Genet.109: 1–17, 1970.
Bender, K., Gaul, H.: Nachwäsche, Rücktrocknung und Lagerung bei ÄMS-behandelten Gerstensamen.—Radiat. Bot.6: 505–518, 1966.
Froese-Gertzen, E. E., Konzak, C. F., Nilan, R. A., Heiner, R. E.: The effect of ethyl methanesulfonate on the growth response, chromosome structure and mutation rate in barley.— Radiat. Bot.4: 61–69, 1964.
Gaul, H.: Mutations in plant breeding.—Radiat. Bot.4: 155–232, 1964.
Gichner, T., Ehrenberg, L.: The influence of post-treatment storage on the frequency of EMS-induced chromosomal aberrations in barley.—Biol. Plant.8: 256–259, 1966.
Gichner, T., Gaul, H.: Storage effects following treatment of barley seeds with ethyl methanesulfonate. —I. Influence of seed moisture content.—Radiat. Bot.11: 53–58, 1971.
Gichner, T., Omura, T.: Storage of ethyl methanesulfonate— treated barley seeds with low moisture contents.—Biol. Plant.13: 383–390, 1971.
Gichner, T., Gaul, H., Omura, T.: The influence of post-treatment washing and redrying of barley seeds on the mutagenic activity of N-methyl-N-nitroso-urea and N-ethyl-N-nitrosourea.— Radiat. Bot.8: 499–507, 1968.
Lett, J. T., Perkins, G. M., Alexander, P.: Physicochemical changes produced in DNA after alkylation.—Arch. Biochem. Biophys.97: 80–93, 1962.
Loveless, A., Stock, J.: The influence of radiomimetic substances on deoxyribonucleic acid synthesis and function studied inEscherichia coli/phage systems. I. The nature of the inactivation of T 2 phagein vitro by certain alkylating agents.—Proc. roy. Soc. (London) B150: 423–445, 1959.
Mikaelsen, K., Ahnström, G., Li, W. C.: Genetic effects of alkylating agents in barley. Influence of post-storage, metabolic state and pH of mutagen solution.—Hereditas59: 353 to 374, 1968.
Author information
Authors and Affiliations
Additional information
Address: Flemingovo nám. 2, Praha 6, Dejvice, Czechoslovakia.
Rights and permissions
About this article
Cite this article
Gichner, T., Omura, T. Storage of ethyl methanesulphonate-treated barley seeds with 15 per cent moisture. Influence of treatment and washing conditions. Biol Plant 14, 155–163 (1972). https://doi.org/10.1007/BF02920960
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02920960