Hamowanie syntezy chlorofilu i RNA w izolowanych liścieniach ogórka przez N-hydroksymocznik [Inhibition of chlorophyll and RNA synthesis by N-hydroxyurea in detached cucumber cotyledons] | Zendy

A. Rennert | Zendy; J. S. Knypl | Zendy

Open Access

Hamowanie syntezy chlorofilu i RNA w izolowanych liścieniach ogórka przez N-hydroksymocznik [Inhibition of chlorophyll and RNA synthesis by N-hydroxyurea in detached cucumber cotyledons]

Author(s) -

A. Rennert,

J. S. Knypl

Publication year - 2015

Publication title -

acta societatis botanicorum poloniae

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.297

H-Index - 29

eISSN - 2083-9480

pISSN - 0001-6977

DOI - 10.5586/asbp.1971.050

Subject(s) - uracil , chlorophyll , rna , greening , protein biosynthesis , dna synthesis , biology , chemistry , dna , botany , biochemistry , gene , ecology

N-hydroxyurea (HU) at the concentration of 5 x 10-4 M decreased the content of chlorophyll in detached cucumber cotyledons; at this concentration it has no inhibitory effect on growth. Benzylaminopurine, gibberelic acid and KCl partially reversed the inhibitory effect of HU on chlorophyll synthesis. HU stimulated yellowing of barley first leaf sections. The compound had little effect on leucine-14C incorporation to protein, and markedly inhibited uracil-14C incorporation in to RNA of the greening cucumber cotyledons. It is suggested that the inhibition of RNA and chlorophyll synthesis in HU-treated cucumber cotyledons follows the HU-dependent inhibition of DNA replication

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