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| Entry URI | http://metadb.riken.jp/db/SciNetS_ria224i/cria224u4ria224u14526079i |
| Entry name | Guo Fang-Qing et al. 2003 Oct. Science 302(5642):100-3. |
| Title | Identification of a plant nitric oxide synthase gene involved in hormonal signaling. |
| Authors | Crawford Nigel M|Guo Fang-Qing|Okamoto Mamoru |
| Abstract | Nitric oxide (NO) serves as a signal in plants. An Arabidopsis mutant (Atnos1) was identified that had impaired NO production, organ growth, and abscisic acid-induced stomatal movements. Expression of AtNOS1 with a viral promoter in Atnos1 mutant plants resulted in overproduction of NO. Purified AtNOS1 protein used the substrates arginine and nicotinamide adenine dinucleotide phosphate and was activated by Ca2+ and calmodulin-like mammalian endothelial nitric oxide synthase and neuronal nitric oxide synthase, yet it is a distinct enzyme with no sequence similarities to any mammalian isoform. Thus, AtNOS1 encodes a distinct nitric oxide synthase that regulates growth and hormonal signaling in plants. |
| Pubmed ID | 14526079 |
| Journal | Science (New York, N.Y.) |
| Volume | 302 |
| Issue | 5642 |
| Pages | 100-3 |
| Publication date | 2003 Oct |
| Num of phenotype gene | 1 |