Difference between revisions of "Os11g0592200"

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==Annotated Information==
 
==Annotated Information==
 
===Gene Symbol===
 
===Gene Symbol===
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*'''''Os11g0592200''''' '''<=>''' '''''OsPR4,OsPR4a,PR4a,OsPR-4'''''
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* '''''Os11g0592200''''' '''<=>''' '''''OsPR4,OsPR4a,PR4a,OsPR-4'''''
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===Function===
 
===Function===
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* Metallothioneins (MTs) are small, cysteine-rich, metal-binding proteins that may be involved in metal homeostasis and detoxification in both plants and animals.
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* '''''PR4''''' proteins constitute a pathogenesis-related (PR) protein family with a conserved BARWIN domain.
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* OsMT1a, encodes a type 1 metallothionein.  
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* The rice PR4 genes are also involved in abiotic stress responses and tolerance in addition to their responsiveness to pathogen attacks.
  
 
===Phenotypic analysis===
 
===Phenotypic analysis===
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* Both transgenic plants and yeasts harboring OsMT1a accumulated more Zn(2+) than wild type controls, suggesting '''''OsMT1a''''' '''is most likely to be involved in zinc homeostasis'''.
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* Transgenic rice with overexpression of '''''OsPR4a''''' showed enhanced tolerance to drought at both seedling and reproductive stages..
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* Transgenic rice plants overexpressing '''''OsMT1a''''' demonstrated enhanced tolerance to drought.
 
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* The examination of antioxidant enzyme activities demonstrated that catalase (CAT), peroxidase (POD) and ascorbate peroxidase (APX) were significantly elevated in transgenic plants. Furthermore, the transcripts of several Zn(2+)-induced CCCH zinc finger transcription factors accumulated in '''''OsMT1a''''' transgenic plants, suggesting that '''''OsMT1a''''' '''not only participates directly in ROS scavenging pathway but also regulates expression of the zinc finger transcription factors via the alteration of Zn(2+) homeostasis, which leads to improved plant stress tolerance'''.
 
  
 
===Expression===
 
===Expression===
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* Expression analysis revealed that OsMT1a predominantly expressed in the roots, and was induced by dehydration.  
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* OsPR4 genes showed diverse temporal–spatial expression patterns, and their expressions are responsive to Magnaporthe grisea infection. Interestingly, the OsPR4 genes are also responsive to abiotic stresses.
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* The OsMT1a expression was also induced specifically by Zn treatment.
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* Their expression levels were strongly induced by at least one of the stress treatments including drought, salt, cold, wounding, heat shock, and ultraviolet.  
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* The transcript levels of OsPR4 genes were also induced by some phytohormones such as abscisic acid and jasmonic acid.
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[[File:232-Os11g0592200.png|center|thumb|727px|'''Figure 4. (SnapShot)''' ''Expression level of OsPR4 genes in various tissues or organs. (A) Expression levels examined by quantitative real-time RT-PCR.<ref name="ref1" />.'']]
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===Evolution===
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* The PR4 genes are located in tandem on chromosome 11 and constitute a gene cluster with high sequence similarity to each other.
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* The OsPR4 proteins have high sequence similarity to reported PR4 proteins from monocotyledonous species and are predicted to be class II PR4 proteins.
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* Distinct diversification of plant PR4 proteins exists between monocotyledonous and dicotyledonous plants.
  
 
You can also add sub-section(s) at will.
 
You can also add sub-section(s) at will.

Revision as of 01:55, 15 February 2017

The rice Os11g0592200 was reported as OsPR4a in 2009 [1] by researchers from China.

Annotated Information

Gene Symbol

  • Os11g0592200 <=> OsPR4,OsPR4a,PR4a,OsPR-4

Function

  • PR4 proteins constitute a pathogenesis-related (PR) protein family with a conserved BARWIN domain.
  • The rice PR4 genes are also involved in abiotic stress responses and tolerance in addition to their responsiveness to pathogen attacks.

Phenotypic analysis

  • Transgenic rice with overexpression of OsPR4a showed enhanced tolerance to drought at both seedling and reproductive stages..

Expression

  • OsPR4 genes showed diverse temporal–spatial expression patterns, and their expressions are responsive to Magnaporthe grisea infection. Interestingly, the OsPR4 genes are also responsive to abiotic stresses.
  • Their expression levels were strongly induced by at least one of the stress treatments including drought, salt, cold, wounding, heat shock, and ultraviolet.
  • The transcript levels of OsPR4 genes were also induced by some phytohormones such as abscisic acid and jasmonic acid.
Figure 4. (SnapShot) Expression level of OsPR4 genes in various tissues or organs. (A) Expression levels examined by quantitative real-time RT-PCR.[1].

Evolution

  • The PR4 genes are located in tandem on chromosome 11 and constitute a gene cluster with high sequence similarity to each other.
  • The OsPR4 proteins have high sequence similarity to reported PR4 proteins from monocotyledonous species and are predicted to be class II PR4 proteins.
  • Distinct diversification of plant PR4 proteins exists between monocotyledonous and dicotyledonous plants.

You can also add sub-section(s) at will.

Labs working on this gene

  • National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research, Huazhong Agricultural University, Wuhan 430070, China
  • College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China

References

  1. ↑ 1.0 1.1 Wang N, Xiao B, Xiong L. Identification of a cluster of PR4-like genes involved in stress responses in rice. J Plant Physiol. 2011 Dec 15;168(18):2212-24. doi: 10.1016/j.jplph.2011.07.013. PubMed PMID: 21955397.

Structured Information

Retrieved from "https://ngdc.cncb.ac.cn/ricewiki/index.php?title=Os11g0592200&oldid=276348"