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Gene-specific expre...
Gene-specific expression and calcium activation of Arabidopsis thaliana phospholipase C isoforms
- Article/chapterEnglish2004
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LIBRIS-ID:oai:lup.lub.lu.se:0b736f23-b6ef-4b3a-b66a-2de7d7004fc5
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https://lup.lub.lu.se/record/138574URI
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https://doi.org/10.1111/j.1469-8137.2004.01069.xDOI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
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PI-PLCs synthesise the calcium releasing second messenger IP3. We investigated the expression patterns of the Arabidopsis PI-PLC gene family and measured in vitro activity of encoded enzymes. Gene specific RT-PCR and promoter-GUS fusions were used to analyse AtPLC gene expression patterns. The five available AtPLC cDNAs were expressed as fusion proteins in Escherichia coli. All members of the AtPLC gene family were expressed in multiple organs of the plant. AtPLC1, and AtPLC5 expression was localized to the vascular cells of roots and leaves with AtPLC5::GUS also detected in the guard cells. AtPLC4::GUS was detected in pollen and cells of the stigma surface. In seedlings, AtPLC2 and AtPLC3 were constitutively expressed, while AtPLCs 1, 4 and 5 were induced by abiotic stresses. AtPLC1-5 were all shown to have phospholipase C activity in the presence of calcium ions. AtPLCs showed limited tissue specific expression and expression of at least three genes was increased by abiotic stress. The differing calcium sensitivities of recombinant AtPLC protein activities may provide a mechanism for generating calcium signatures.
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Otterhag, L
(author)
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Lee, J C
(author)
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Lasheen, T
(author)
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Hunt, J
(author)
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Seki, M
(author)
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Shinozaki, K
(author)
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Sommarin, MarianneLund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)pbio-mso
(author)
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Gilmour, D J
(author)
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Pical, ChristopheLund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)pbio-cpi
(author)
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Gray, J E
(author)
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Biokemi och StrukturbiologiCentrum för Molekylär Proteinvetenskap
(creator_code:org_t)
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In:New Phytologist: Wiley162:3, s. 643-6541469-81370028-646X
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Hunt, L
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Otterhag, L
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Lee, J C
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Lasheen, T
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Hunt, J
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Seki, M
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Shinozaki, K
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Sommarin, Marian ...
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Gilmour, D J
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Pical, Christoph ...
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Gray, J E
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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New Phytologist
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Lund University