Os07g0152900
The rice Os07g0152900 was reported as OsGLO4 in 2013 [1] by researchers from China.
Contents
Annotated Information
Gene Symbol
Figure 1. Phenotypes of the GLO-suppressed transgenic plants.[1].
- Os07g0152900 <=> OsGLO4,GLO4
Function
- Glycolate oxidase (GLO) encoded by OsGLO4 is a key enzyme for photorespiration in plants.
- suppression of GLO genes causes photosynthetic inhibition, and the accumulated glycolate with the deactivated Rubisco is likely involved in the regulation.
Phenotypic analysis
- The researchers have generated the transgenic rice (Oryza sativa) plants with GLO being constitutively silenced, and conducted the physiological and biochemical analyses on these plants to explore the regulatory mechanism.
- When GLO was downregulated, the net photosynthetic rate (Pn) was reduced and the plant growth was correspondingly stunted. Surprisingly, glyoxylate, as a product of the GLO catalysis, was accumulated in response to the GLO suppression, like its substrate glycolate.
- Furthermore, the glyoxylate content was found to be inversely proportional to the Pn while the Pn is directly proportional to the Rubisco activation state in the GLO-suppressed plants.
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Labs working on this gene
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Institute of Biotechnology, Cornell University, Ithaca, NY, USA
