cot 1: A regulator of Arabidopsis trichome development
Szymanski DB, Klis DA, Larkin JC, Marks MD: cot 1: A regulator of Arabidopsis trichome development Genetics 1998, 149:565-577. Mutation of the COT1 locus was identified in a screen of Arabidopsis plants expressing GL1 under the control of the CaMV 35S promoter. Alone cot1 mutants have no observable phenotype but in 35S-GL1 plants, cot1 mutants enhance ectopic trichome production on cotyledons and hypocotyl and increase leaf trichome numbers on support cells and at leaf margins. COT1 appears to interact synergistically with TRY to suppress cotyledonary trichomes.
Roles of the glabrous1 and transparent testa glabra genes in Arabidopsis trichome development
Larkin JC, Oppenheimer DG, Lloyd AM, Paparozzi ET, Marks MD: Roles of the glabrous1 and transparent testa glabra genes in Arabidopsis trichome development Plant Cell 1994, 6:1065-1076.
Kragler F, Lucas WJ, Manzer J: Plasmodesmata: dynamics, domains and patterning. Ann Bot 1998, 81:1-10. A review on plasmodesmata which contains a detailed model for the mechanisms of lateral inhibition of trichome formation in Arabidopsis. The authors propose plasmodesmatal trafficking of a trichome inducing factor (in a manner similar to that reported for Kn1 in maize) which binds and transports an mRNA encoding a trichome inhibiting factor. Although there is evidence that TTG acts non cell-autonomously, data for GL1 suggest its activity to be cell autonomous or localised to a very few cells [3]. The nature of the trichome inducing factor is therefore unclear, and, unless the authors have unpublished supporting evidence, the model appears very speculative.
Epidermal cell fate determination in Arabidopsis: Patterns defined by steroid-inducible regulator
Lloyd AM, Schena M, Walbot V, Davis RW: Epidermal cell fate determination in Arabidopsis: patterns defined by steroid-inducible regulator. Science 1994, 266:436-439.
