Difference between revisions of "Os02g0650300"

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(Function)
(Function)
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===Function===
 
===Function===
  
Our results suggest that OsYSL16 plays a role in the allocation of iron(III)-deoxymugineic acid via the vascular bundles<ref name="pmid:22644443"/>.
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OsYSL15 promoter-β-glucuronidase analysis revealed that OsYSL15 expression in roots was dominant in the epidermis/exodermis and phloem cells under conditions of iron deficiency and was detected only in phloem under iron sufficiency. These results strongly suggest that OsYSL15 is the dominant iron(III)-deoxymugineic acid transporter responsible for iron uptake from the rhizosphere and is also responsible for phloem transport of iron. OsYSL15 was also expressed in flowers, developing seeds, and in the embryonic scutellar epithelial cells during seed germination. OsYSL15 knockdown seedlings showed severe arrest in germination and early growth and were rescued by high iron supply. These results demonstrate that rice OsYSL15 plays a crucial role in iron homeostasis during the early stages of growth.
 
 
In the vascular bundles of unelongated nodes, it was detected in the xylem of old leaves and the phloem of new leaves<ref name="pmid:22644443"/>.
 
 
 
These results strongly suggest that OsYSL15 is the dominant iron(III)-deoxymugineic acid transporter responsible for iron uptake from the rhizosphere and is also responsible for phloem transport of iron<ref name="pmid:19049971"/>.
 
 
 
The expression of several genes encoding late embryogenesis abundant proteins, including Osem, was induced in Fe-deficient roots and/or leaves in an IDEF1-dependent manner, suggesting a possible function of seed maturation-related genes in Fe-deficient vegetative organs<ref name="pmid:19737364"/>.
 
 
 
Expression of the OsYSL16 promoter fused to the β-glucuronidase gene showed that OsYSL16 is expressed in the root epidermis and vascular bundles of whole plants<ref name="pmid:22644443"/>.
 
 
 
Graminaceous plants take up iron through YS1 (yellow stripe 1) and YS1-like (YSL) transporters using iron-chelating compounds known as mugineic acid family phytosiderophores<ref name="pmid:19049971"/>.
 
 
 
OsYSL16 plays a role in the allocation of iron<ref name="pmid:22644443"/>.
 
 
 
Graminaceous plants acquire iron by secreting mugineic acid family phytosiderophores into the rhizosphere and taking up complexes of iron and phytosiderophores through YSL (yellow stripe 1-like) transporters<ref name="pmid:22644443"/>.
 
 
 
Rice OsYSL15 is a transporter of the iron(III)-2'-deoxymugineic acid complex<ref name="pmid:22644443"/>.
 
  
 
Rice OsYSL15 is an iron-regulated iron(III)-deoxymugineic acid transporter expressed in the roots and is essential for iron uptake in early growth of the seedlings<ref name="pmid:19049971"/>.
 
Rice OsYSL15 is an iron-regulated iron(III)-deoxymugineic acid transporter expressed in the roots and is essential for iron uptake in early growth of the seedlings<ref name="pmid:19049971"/>.

Revision as of 07:33, 24 May 2014

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Annotated Information

Function

OsYSL15 promoter-β-glucuronidase analysis revealed that OsYSL15 expression in roots was dominant in the epidermis/exodermis and phloem cells under conditions of iron deficiency and was detected only in phloem under iron sufficiency. These results strongly suggest that OsYSL15 is the dominant iron(III)-deoxymugineic acid transporter responsible for iron uptake from the rhizosphere and is also responsible for phloem transport of iron. OsYSL15 was also expressed in flowers, developing seeds, and in the embryonic scutellar epithelial cells during seed germination. OsYSL15 knockdown seedlings showed severe arrest in germination and early growth and were rescued by high iron supply. These results demonstrate that rice OsYSL15 plays a crucial role in iron homeostasis during the early stages of growth.

Rice OsYSL15 is an iron-regulated iron(III)-deoxymugineic acid transporter expressed in the roots and is essential for iron uptake in early growth of the seedlings[1].

Furthermore, OsYSL16-knockdown plants accumulated more iron in the vascular bundles of the leaves[2].

The rice transcription factor IDEF1 is essential for the early response to iron deficiency, and induces vegetative expression of late embryogenesis abundant genes[3].

Proximal regions of IDEF1-regulated gene promoters also showed enrichment of RY elements (CATGCA), which regulate gene expression during seed maturation[3].

Expression

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Evolution

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Labs working on this gene

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References

  1. Inoue, H; Kobayashi, T; Nozoye, T; Takahashi, M; Kakei, Y; Suzuki, K; Nakazono, M; Nakanishi, H; Mori, S; Nishizawa, NK. (2009) Rice OsYSL15 is an iron-regulated iron(III)-deoxymugineic acid transporter expressed in the roots and is essential for iron uptake in early growth of the seedlings.The Journal of biological chemistry 284: 6.
  2. Kakei, Y; Ishimaru, Y; Kobayashi, T; Yamakawa, T; Nakanishi, H; Nishizawa, NK. (2012) OsYSL16 plays a role in the allocation of iron.Plant molecular biology 79: 6.
  3. 3.0 3.1 Kobayashi, T; Itai, RN; Ogo, Y; Kakei, Y; Nakanishi, H; Takahashi, M; Nishizawa, NK. (2009) The rice transcription factor IDEF1 is essential for the early response to iron deficiency, and induces vegetative expression of late embryogenesis abundant genes.The Plant journal : for cell and molecular biology 60: 6.

Structured Information

Gene Name

Os02g0650300

Description

Oligopeptide transporter OPT superfamily protein

Version

NM_001186167.1 GI:297721466 GeneID:9268232

Length

1969 bp

Definition

Oryza sativa Japonica Group Os02g0650300, complete gene.

Source

Oryza sativa Japonica Group

 ORGANISM  Oryza sativa Japonica Group
           Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
           Spermatophyta; Magnoliophyta; Liliopsida; Poales; Poaceae; BEP
           clade; Ehrhartoideae; Oryzeae; Oryza.
Chromosome

Chromosome 2

Location

Chromosome 2:27086997..27088965

Sequence Coding Region

27088433..27088646,27088748..27088911

Expression

GEO Profiles:Os02g0650300

Genome Context

<gbrowseImage1> name=NC_008395:27086997..27088965 source=RiceChromosome02 preset=GeneLocation </gbrowseImage1>

Gene Structure

<gbrowseImage2> name=NC_008395:27086997..27088965 source=RiceChromosome02 preset=GeneLocation </gbrowseImage2>

Coding Sequence

<cdnaseq>actaattctgcaatctgcattcatgacagattgcaactccatgggtttctaaaatattttgggcttagcttattttggagcttcttccaatggttctacacgggaggcaatgcctgtggatttgttcagttccctacttttggtctgaaagcctggaaacaatcattcttctttgattttagcctcacatatgttggtgcggggatgatttgctcacaccttgtgaacctctctaccctccttggtgcggtcatttcatggggaataatgtggccacttatcagcaaacataagggggactggtaccctgcaaacatacctgaaagcagcatgacaagtttgtatggttacaaggtctcatattttctcaatgcttaa</cdnaseq>

Protein Sequence

<aaseq>TNSAICIHDRLQLHGFLKYFGLSLFWSFFQWFYTGGNACGFVQF PTFGLKAWKQSFFFDFSLTYVGAGMICSHLVNLSTLLGAVISWGIMWPLISKHKGDWY PANIPESSMTSLYGYKVSYFLNA</aaseq>

Gene Sequence

<dnaseqindica>320..533#55..218#aattaattgtgctcattgcattattcttgttagacagtcgttgaccctaaatgaactaattctgcaatctgcattcatgacagattgcaactccatgggtttctaaaatattttgggcttagcttattttggagcttcttccaatggttctacacgggaggcaatgcctgtggatttgttcagttccctacttttggtctgaaagcctggaaacaatcgtaagaattatatgctaatttcctaattgttcatcacagatttatataaattgtagcatgcggtgacaaattttctaagtctgaatttgtttggatatcagattcttctttgattttagcctcacatatgttggtgcggggatgatttgctcacaccttgtgaacctctctaccctccttggtgcggtcatttcatggggaataatgtggccacttatcagcaaacataagggggactggtaccctgcaaacatacctgaaagcagcatgacaagtttgtatggttacaaggtctcatattttctcaatgcttaatgtaaaagcagatactacttacaaaaccatcagataacttatgtaaattgctccttttgcagtcgtttttatgcattgctctgattatgggggatggcctgtaccattttgttaaagttaccggtgtcactgctaagagtttacataatagatttaaccgaaaaagtgttagcaacacaggtgagaaaatgaaaccattgcaaattcaactacatggaaatggaatgcctctcacactcttccatcaccttaattttcacatactcataacactgttaatgatggctaaatgaaatgaattgcagcatcagaggagggtgatatggtttcattagatgatctacaacgtgatgaggtattcaagaggggtactgtcccttcttggatggcatacagtggttacttcttgctaagcatcattgcggtaatcaccataccgataatgtttcgacaagtgaagtggtactacgtgatcatagcctacgcgctcggcccggtgctaggattcgccaattcctacggagcagggctcacggacatcaacatggggtacaactacggcaagatcgctctcttcgtctttgcagcttgggctggcaaggacaatggcgtcatagccggccttgtggttggcaccctggtgaagcagctggtgctcgtctctgccgatctgatgcacgatctcaagacgggacatctcaccttgacatcgccgaggtccatgctcgtgggagagctcatcgggacaggcattggctgcttcatcgcgccactgacgttcatgctgttctacagggcgtttgacatcgggaaccccgatggctactggaaggcgccatacgcgctgatctaccgcaacatggcgatcctcgggatcgagggcatctcggcgctgcccaagcactgcctctcgctctccgtcgggttcttcgcgttcgccgtgctcacgaacgtggcgagggacgccctgccggcgaggtacaagaagctcgtgccgctgccgacggcgatggccgtgccgttcctcgtaggggcgagcttcgccatcgacatgtgcgtcgggagcctggtgctgtttgcttggaacaagatgaacaagaaggaggctgccttcatggtgcctgctgttgcgtctgggctcatgtgtggcgatggcatttggaccttcccttcttctatccttgctctcgctaagattaagccaccgatctgcatgaagtttacgcctggaagctaagaggtgtagtgtgtttaatttcatgggtggaggattgcagaaataaacagtgatgattaactgtaaatgtgtcttttggttgtagtgagctgctgtttgcctatgatccaagtcatgtttgtgttttaatttacctatcgaattagctgtgtttgtacacttgtacattttataacttgagaattgtttagtttggcat</dnaseqindica>

External Link(s)

NCBI Gene:Os02g0650300, RefSeq:Os02g0650300