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| Mutant name | SAG:kn1 tobacco plant |
| Mutant/Transgenic |
transgenic |
| Ecotype |
tobacco(Nicotiana tabacum cv Wisconsin 38) |
| Mutagenesis type |
transgene |
| (Semi-)Dominant/Recessive |
dominant |
| Description |
SAG:kn1 tobacco plants showed a marked delay in leaf senescence but otherwise developed normally. The delay in senescence was revealed by an increase in chlorophyll content in SAG:kn1 leaves relative to leaves of the control plants and by a decrease in the number of dead leaves. |
| References |
1: Ori N, Juarez MT, Jackson D, Yamaguchi J, Banowetz GM, Hake SLeaf senescence is delayed in tobacco plants expressing the maize homeobox gene knotted1 under the control of a senescence-activated promoter.Plant Cell 1999 Jun;11(6):1073-80
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| GenBank ID |
NM_001111966 |
| Alias |
KN1 |
| Organism |
Maize (Zea mays) |
| Description |
Kn1 gene encodes a homeodomain-containing protein, the first identified in the plant kingdom. Sequence comparisons strongly suggest that Kn1 acts as a transcription factor. Distal expression of knotted1 in maize leaves leads to reestablishment of proximal/distal patterning and leaf dissection.The maize transcription factor KNOTTED1 directly regulates the gibberellin catabolism gene ga2ox1.The interaction of knotted1 and thick tassel dwarf1 in vegetative and reproductive meristems of maize |
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