Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2001-1-22
pubmed:abstractText
Sucrose-phosphate synthase (SPS) is one of the key regulatory enzymes in carbon assimilation and partitioning in plants. SPS plays a central role in the production of sucrose in photosynthetic cells and in the conversion of starch or fatty acids into sucrose in germinating seeds. To explore the mechanisms that regulate the tissue-specific and developmental distribution of SPS, the expression pattern of rice (Oryza sativa) sps1 (GenBank accession no. U33175) was examined by in situ reverse transcriptase-polymerase chain reaction and the expression directed by the sps1 promoter using the beta-glucuronidase reporter gene. It was found that the expression of the rice sps1 gene is limited to mesophyll cells in leaves, the scutellum of germinating seedlings, and pollen of immature inflorescences. During leaf development, the sps1 promoter directs a basipetal pattern of expression that coincides with the distribution of SPS activity during the leaf sink-to-source transition. It was also found that during the vegetative part of the growth cycle, SPS expression and enzymatic activity are highest in the youngest fully expanded leaf. Additionally, it was observed that the expression of the sps1 promoter is regulated by light and dependent on plastid development in photosynthetic tissues, whereas expression in scutellum is independent of both light and plastid development.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-10394635, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-10498677, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-13126097, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-1386537, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-1531032, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-1565662, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-16652990, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-16653110, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-16653111, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-16657129, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-16658449, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-16660297, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-16663808, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-16667688, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-16668210, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-1840396, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-2102847, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-2651885, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-271968, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-2902624, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-3327686, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-3678200, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-434463, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-5650857, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-6383828, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-7565586, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-7763376, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-7763823, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-7770061, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-8193295, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-8278540, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-8306952, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-8666248, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-8696364, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-8842155, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-8917305, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-8921916, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-8938415, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-9177054, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-9225855, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-9232876, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-9306694, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-9327592, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-9391171, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-9431676, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-9520277, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-9620436, http://linkedlifedata.com/resource/pubmed/commentcorrection/11027714-9872750
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0032-0889
pubmed:author
pubmed:issnType
Print
pubmed:volume
124
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
641-54
pubmed:dateRevised
2010-9-14
pubmed:meshHeading
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