Difference between revisions of "Os09g0545300"
(Created page with " Please input one-sentence summary here. ==Annotated Information== ===Function=== Please input function information here. ===Expression=== Please input expression informatio...") |
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| + | The rice '''''Os09g0545300''''' was reported as '''''SAUR39''''' in 2009 <ref name="ref1" /> by researchers from Canada. | ||
| − | + | ==Annotated Information== | |
| + | [[File:Os09g0545300.png|right|thumb|427px|'''Figure 2.''' ''Growth of wild-type (WT) and SAUR39-OX rice plants.<ref name="ref1" />.'']] | ||
| − | |||
===Function=== | ===Function=== | ||
| − | + | * The phytohormone auxin plays a critical role for plant growth by regulating the expression of a set of genes. | |
| + | * One large auxin-responsive gene family of this type is the small auxin-up RNA (SAUR) genes, although their function is largely unknown. | ||
| + | * '''''SAUR39''''' acts as a negative regulator for auxin synthesis and transport. | ||
| + | |||
| + | ===Phenotypic analysis=== | ||
| + | * Transgenic rice plants overexpressing the '''''SAUR39''''' gene resulted in lower shoot and root growth, altered shoot morphology, smaller vascular tissue, and lower yield compared with wild-type plants. | ||
| + | * The '''''SAUR39''''' gene was expressed at higher levels in older leaves, unlike auxin biosynthesis, which occurs largely in the meristematic region. | ||
| + | * The transgenic plants had a lower auxin level and a reduced polar auxin transport as well as the down-regulation of some putative auxin biosynthesis and transporter genes. | ||
| + | * Biochemical analysis also revealed that transgenic plants had lower chlorophyll content, higher levels of anthocyanin, abscisic acid, sugar, and starch, and faster leaf senescence compared with wild-type plants at the vegetative stage. Most of these phenomena have been shown to be negatively correlated with auxin level and transport. | ||
| + | * Transcript profiling revealed that metabolic perturbations in overexpresser plants were largely due to transcriptional changes of genes involved in photosynthesis, senescence, chlorophyll production, anthocyanin accumulation, sugar synthesis, and transport. The lower growth and yield of overexpresser plants was largely recovered by exogenous auxin application. | ||
===Expression=== | ===Expression=== | ||
| − | + | * The expression of the rice (Oryza sativa) '''''SAUR39''''' gene showed rapid induction by transient change in different environmental | |
| + | factors, including auxin, nitrogen, salinity, cytokinin, and anoxia. | ||
| − | |||
| − | |||
You can also add sub-section(s) at will. | You can also add sub-section(s) at will. | ||
==Labs working on this gene== | ==Labs working on this gene== | ||
| − | + | * Department of Molecular and Cellular Biology, College of Biological Science, University of Guelph, Guelph, Ontario, Canada N1G 2W1 (S.K., Y.-M.B., S.J.R.); | |
| + | * Syngenta Biotechnology, Inc., Research Triangle Park, North Carolina 27709 (T.Z.) | ||
| + | ==References== | ||
| + | <references> | ||
| + | * <ref name="ref1"> | ||
| + | Kant S, Bi YM, Zhu T, Rothstein SJ. SAUR39, a small auxin-up RNA gene, acts as | ||
| + | a negative regulator of auxin synthesis and transport in rice. Plant Physiol. | ||
| + | 2009 Oct;151(2):691-701. doi: 10.1104/pp.109.143875. PubMed PMID: 19700562; | ||
| + | PubMed Central PMCID: PMC2754634. | ||
| − | + | </ref> | |
| − | + | ||
| + | </references> | ||
==Structured Information== | ==Structured Information== | ||
[[Category:Genes]][[Category:Oryza Sativa Japonica Group]][[Category:Japonica Chromosome 09]] | [[Category:Genes]][[Category:Oryza Sativa Japonica Group]][[Category:Japonica Chromosome 09]] | ||
Revision as of 09:09, 23 February 2017
The rice Os09g0545300 was reported as SAUR39 in 2009 [1] by researchers from Canada.
Contents
Annotated Information
File:Os09g0545300.png
Figure 2. Growth of wild-type (WT) and SAUR39-OX rice plants.[1].
Function
- The phytohormone auxin plays a critical role for plant growth by regulating the expression of a set of genes.
- One large auxin-responsive gene family of this type is the small auxin-up RNA (SAUR) genes, although their function is largely unknown.
- SAUR39 acts as a negative regulator for auxin synthesis and transport.
Phenotypic analysis
- Transgenic rice plants overexpressing the SAUR39 gene resulted in lower shoot and root growth, altered shoot morphology, smaller vascular tissue, and lower yield compared with wild-type plants.
- The SAUR39 gene was expressed at higher levels in older leaves, unlike auxin biosynthesis, which occurs largely in the meristematic region.
- The transgenic plants had a lower auxin level and a reduced polar auxin transport as well as the down-regulation of some putative auxin biosynthesis and transporter genes.
- Biochemical analysis also revealed that transgenic plants had lower chlorophyll content, higher levels of anthocyanin, abscisic acid, sugar, and starch, and faster leaf senescence compared with wild-type plants at the vegetative stage. Most of these phenomena have been shown to be negatively correlated with auxin level and transport.
- Transcript profiling revealed that metabolic perturbations in overexpresser plants were largely due to transcriptional changes of genes involved in photosynthesis, senescence, chlorophyll production, anthocyanin accumulation, sugar synthesis, and transport. The lower growth and yield of overexpresser plants was largely recovered by exogenous auxin application.
Expression
- The expression of the rice (Oryza sativa) SAUR39 gene showed rapid induction by transient change in different environmental
factors, including auxin, nitrogen, salinity, cytokinin, and anoxia.
You can also add sub-section(s) at will.
Labs working on this gene
- Department of Molecular and Cellular Biology, College of Biological Science, University of Guelph, Guelph, Ontario, Canada N1G 2W1 (S.K., Y.-M.B., S.J.R.);
- Syngenta Biotechnology, Inc., Research Triangle Park, North Carolina 27709 (T.Z.)
