9 research outputs found
Photomorphogenic mutants of tomato
Get PDFPhotomorphogenesis of tomato is being studied with the aid of mutants which are either modified in their photore-
ceptor composition or in their signal transduction chain(s)
. Several mutants affecting the phytochrome family of
photoreceptors, some of which appear deficient for specific genes encoding phytochrome apoproteins have been
isolated
. In addition, other mutants, including transgenic lines overexpressing phytochrome A, exhibit exaggerated
photomorphogenesis during de-etiolation
. Anthocyanin biosynthesis and plastid development are being used
as
model systems for the dissection of the complex interactions among photomorphogenic photoreceptors and to
elucidate the nature of their transduction chains
Anatomia foliar de microtomateiros fitocromo-mutantes e ultra-estrutura de cloroplastos
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Characterization of the gene encoding the apoprotein of tomato phytochrome B2, and identification of molecular lesions in two mutant alleles
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