Difference between revisions of "Os02g0833000"
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===Gene Symbol=== | ===Gene Symbol=== | ||
*'''''Os02g0833000''''' '''''<=>''''' '''''OsGnTI,GnTI''''' | *'''''Os02g0833000''''' '''''<=>''''' '''''OsGnTI,GnTI''''' | ||
| − | [[File:114-Os02g0833000.png|right|thumb| | + | [[File:114-Os02g0833000 .png|right|thumb|327px|'''Figure 2.''' ''Developmental analysis of gnt1.<ref name="ref1" />.'']] |
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===Function=== | ===Function=== | ||
* Oryza sativa '''''GnTI''''' encodes enzymatically and functionally active protein | * Oryza sativa '''''GnTI''''' encodes enzymatically and functionally active protein | ||
* Loss of '''''GnTI''''' function resulted in decreased cell wall synthesis activity, which might be responsible for the brittle phenotype and reduced tensile strength in gnt1. | * Loss of '''''GnTI''''' function resulted in decreased cell wall synthesis activity, which might be responsible for the brittle phenotype and reduced tensile strength in gnt1. | ||
* '''''GnTI''''' plays an important role in cellulose biosynthesis in the plant. | * '''''GnTI''''' plays an important role in cellulose biosynthesis in the plant. | ||
| − | === | + | ===Phenotypic analysis=== |
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* Phenotypic analyses revealed that gnt1 shows defective post-seedling development and incomplete cell wall bio-synthesis, leading to symptoms such as failure in tiller formation, brittle leaves, reduced cell wall thickness, and decreased cellulose content. | * Phenotypic analyses revealed that gnt1 shows defective post-seedling development and incomplete cell wall bio-synthesis, leading to symptoms such as failure in tiller formation, brittle leaves, reduced cell wall thickness, and decreased cellulose content. | ||
* The developmental defects of gnt1 ultimately resulted in early lethality without transition to the reproductive stage. | * The developmental defects of gnt1 ultimately resulted in early lethality without transition to the reproductive stage. | ||
Latest revision as of 09:36, 18 October 2016
The rice Os02g0833000 was reported as GnTI in 2013 [1] by researchers from Korea.
Contents
Annotated Information
Gene Symbol
- Os02g0833000 <=> OsGnTI,GnTI
Figure 2. Developmental analysis of gnt1.[1].
Function
- Oryza sativa GnTI encodes enzymatically and functionally active protein
- Loss of GnTI function resulted in decreased cell wall synthesis activity, which might be responsible for the brittle phenotype and reduced tensile strength in gnt1.
- GnTI plays an important role in cellulose biosynthesis in the plant.
Phenotypic analysis
- Phenotypic analyses revealed that gnt1 shows defective post-seedling development and incomplete cell wall bio-synthesis, leading to symptoms such as failure in tiller formation, brittle leaves, reduced cell wall thickness, and decreased cellulose content.
- The developmental defects of gnt1 ultimately resulted in early lethality without transition to the reproductive stage.
- However, callus induced from gnt1 seeds could be maintained for periods, although it exhibited a low proliferation rate, small size, and hypersensitivity to salt stress.
- Shoot regeneration and dark-induced leaf senescence assays indicated that the loss of GnTI function results in reduced sensitivity to cytokinin in rice.
- Reduced expression of A-type O. sativa response regulators that are rapidly induced by cytokinins in gnt1 confirmed that cytokinin signaling is impaired in the mutant.
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Labs working on this gene
- Division of Applied Life Science (BK21 Program) and PMBBRC, Gyeongsang National University, 501 Jinju-daero, Jinju 660-701, Korea
- Division of Electron Microscopic Research, Korea Basic Science Institute, 113 Gwahangno, Yuseong-gu, Daejeon 305-333, Korea
- Integrative Omics Research Center, Korea Research Institute of Bioscience and Biotechnology, Yuseong-gu, Daejeon 305- 806, Korea
References
- ↑ 1.0 1.1 Fanata WI, Lee KH, Son BH, Yoo JY, Harmoko R, Ko KS, Ramasamy NK, Kim KH, Oh DB, Jung HS, Kim JY, Lee SY, Lee KO. N-glycan maturation is crucial for cytokinin-mediated development and cellulose synthesis in Oryza sativa. Plant J. 2013 Mar;73(6):966-79. doi: 10.1111/tpj.12087. Epub 2013 Feb 25. PubMed PMID: 23199012.
