Abstract：
:Our aim was to identify, using their complementary DNAs (cDNAs), genes which are rapidly and transiently expressed during the initial phase of blue-light-induced chloroplast differentiation in cultured plant cells (Chenopodium rubrum L.), and to evaluate the role of their prospective products with regard to light perception, signal transduction and response, as well as coordination in the expression of other blue-light-induced genes. A cDNA library (λ gt10) was established using polyadenylated RNAs from cells exposed to blue light for 6, 12, and 24 h. Selection of the relevant species from the combined preparations was achieved by applying hybridization techniques and hydroxylapatite chromatography, thus eliminating most of the mRNAs representative of dark-grown and fully greened cells. By differential screening, several clones corresponding to genes rapidly induced by blue light were identified. For most of these a temporary accumulation of the specific mRNA between 30 min and 72 h of blue-light irradiation was observed. With regard to the nucleotide sequence and the respective deduced amino-acid sequence, a glycine-rich protein, a β-tubulin-like protein and one species resembling an acidic ribosomal protein (RLAO) were among the products of the early light-induced genes.
journal_name
Plantajournal_title
Plantaauthors
Kaldenhoff R,Richter Gdoi
10.1007/BF02411542subject
Has Abstractpub_date
1990-05-01 00:00:00pages
220-8issue
2eissn
0032-0935issn
1432-2048journal_volume
181pub_type
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