Root-specific expression of the LeRse-1 gene in tomato is induced by exposure of the shoot to light.
The tomato gene LeRse-1 was isolated from a root hair-specific cDNA library. The amino acid sequence of the LeRse-1 product displayed a high degree of identity to that of AgMtd, a mannitol dehydrogenase-encoding gene from celery. Expression of LeRse-1 was found to be restricted to the root organs of tomato, with no detectable transcripts in stems and leaves. Transcripts of LeRse-1 were detected in root hairs, as well as other root tissues of mature plants and seedlings. Root-specific LeRse-1 expression increased upon exposure of the shoot to light. Since roots were kept in darkness, shoot-to-root communication is required for light-induced LeRse-1 RNA accumulation.
Lauter
F R
FR
Institut für Genbiologische Forschung, AG Frommer, Berlin, Germany.
D000595:Amino Acid Sequence; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D008027:Light; D018551:Solanum lycopersicum / Q000235:genetics* / Q000528:radiation effects; D008354:Mannitol Dehydrogenases / Q000235:genetics; D008969:Molecular Sequence Data; D018517:Plant Roots / Q000235:genetics* / Q000528:radiation effects
D008354:Mannitol Dehydrogenases