Linked Life Data

19077168

Source:http://linkedlifedata.com/resource/pubmed/id/19077168

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-5-5
pubmed:abstractText
Light is one of the most important environmental factors that regulate plant development. Here we report that a mutation in the Arabidopsis FIERY1 gene (FRY1) caused a shortened hypocotyl and shorter petioles, most dramatically under low-intensity red light and less pronounced under far-red and blue-light conditions. Furthermore, the fry1 mutant flowered late, probably due to a reduced level of FLOWERING LOCUS T (FT) transcript. However, although the transcript level of FRY1 was light-regulated, the chlorophyll level and the expression of typical light-regulated genes were not affected in the fry1 mutant. FRY1 is known as a regulator of abiotic stress responses, and its protein product has dual enzymatic activity comprising inositol polyphosphate-1-phosphatase and 3'(2'),5'-bisphosphate nucleotidase activity. Genetic complementation data obtained using cDNA of the FRY1 paralog AHL (Arabidopsis HAL2-like) and the similar phenotype of an xrn2/xrn3 double mutant suggest that FRY1 attenuates light responses via its 3'(2'),5'-bisphosphate nucleotidase activity rather than its inositol polyphosphate-1-phosphatase activity. We discuss the relationship between the FRY1-associated nucleotidase activity, a step in the pathway for sulfur metabolism and utilization, and the Arabidopsis light response.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1365-313X
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
58
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
208-19
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
FIERY1 regulates light-mediated repression of cell elongation and flowering time via its 3'(2'),5'-bisphosphate nucleotidase activity.
pubmed:affiliation
Department of Biochemistry and Cellular and Molecular Biology, The University of Tennessee, Knoxville, TN 37996-0840, USA.
pubmed:publicationType
Journal Article