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The growth rate variability ofChlorella vulgaris beijer. Clones grown after mutagen treatment under autotrophic or heterotrophic conditions on the surface of a solid medium

Variabilita rusta klonu Chlorella vulgaris BEIJER. za podmínck autotrofie a heterotrofie po ovllvnéní buník mutageny

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Biologia Plantarum

Abstract

Populations of theChloretta vulgaris Beijeb. strain Česnokov “V” clones (progenies of single cells) grown up from cells treated by chemical mutagens were cultivated on the surface of solid media. The differentiation of growth types according to their growth rates in the populations originating from the same sample of cells but growing under different conditions was compared. The strain studied exhibited much greater growth rate variability on the complete medium than on the minimal one. Short time changes of light regime during the cultivation for the purpose of inducing reparation processes in the mutagen damaged cells did not manifest themselves significantly in the composition of resulting clonal populations. The possibility of selection of growth types under conditions studied was considered.

Abstract

Populace klonů chlorokokální řasyChlorella vulgaris kmene ČESNOKOV „V“ byly kultivovány na povrohu pevných médií z buněk, ovlivněných chemickými mutageny. Porovnávalo se rozrůznění růstových typů mezi klony podle jejich růstových rychlostí za různých kultivačruích podmínek. Studovaný kmen vykazoval mnohem větší variabilitu v tomto znaku u klonš rostoucíoh ne kompletnfm médiu než u klonů rostoucích na minimálním médiu. Krátkodobé změny světelného kultivaěního režimu, které měly indukovat reparační a adaptační procesy u mutagenem poškozených buněk, se neprojevily nijak významně ve složení klonových populací z téhož souboru ovlivněnýoh buněk. Výsledky provedených pokusů byly hodnooeny pod zorným úhlem možnosti výběru různýoh růstovýoh typů za různýoh kultivačních podmínek.

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  1. Laboratory of Algology of the Microbiological Institute of the Czechoslovak Academy of Soiences, Dukelská 145, TУeboň, Czechoslovakia

    J. Nečas

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  1. J. Nečas
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Nečas, J. The growth rate variability ofChlorella vulgaris beijer. Clones grown after mutagen treatment under autotrophic or heterotrophic conditions on the surface of a solid medium. Biol Plant 12, 359–367 (1970). https://doi.org/10.1007/BF02922190

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  • DOI: https://doi.org/10.1007/BF02922190

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