Photosynthesis-associated gene families: Differences in response to tissue-specific and environmental factors

June Simpson, Marc Van Montagu, Luis Herrera-Estrella

Research output: Contribution to journalArticle

96 Scopus citations

Abstract

The endogenous small subunit of the ribulose-1,5-bisphosphate carboxylase gene rbcS and the light-harvesting chlorophyll a/b-binding protein gene(LHCP)of pea are expressed in a light-inducible manner and are active mainly in green chloroplast-containing tissue. Chimeric genes under control of the 5′-flanking sequences of the rbcS ss3.6 or LHCP AB80 genes from pea were used to study the factors relating to the tissue-specific and light-inducible expression of these nuclear-encoded genes in transgenic tobacco plants. The results show that plastid development plays a crucial role in the activation of expression of these chimeric genes. Particular members of each of the above gene families respond differently to tissue-specific and environmental factors. Furthermore, the light-inducible expression directed by the 5′-flanking sequence of ss3.6 rbcS gene is not exclusively mediated by phytochrome, but probably is controlled in large part by another photoreceptor.

Original languageEnglish
Pages (from-to)34-38
Number of pages5
JournalScience
Volume233
Issue number4759
DOIs
StatePublished - 1986

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