to my knowledge, the Arabidopsis amp1(altered meristem
programming1) display three true cotyledons in certain condition.
The reference is: Mutations of Arabidopsis thaliana that transform leaves
intodons. Laura J. Conway and R. Scott Poethig
On 31 Mar 2000, Kwangchul Oh wrote:
>> I have observed tomato seedlings which have three true cotyledons.
> Does anybody know there is a mutant with three cotyledons in Arabidopsis or
>>> KwangChul Oh
>> Oregon State University
> Botany and Plant Pathology
> Cordely Hall 2082
> Corvallis, OR 97331-2902