Plants, in particular the model plant Arabidopsis thaliana, fulfill the above mentioned requirements. A classical attempt to describe the organization of the body of higher plants,
including Arabidopsis, relies on the concept of phytomers. A phytomer is a repetitive unit that consists of a leaf, a leaf attachment site including an axillary bud (nodium) and an associated piece of stem (internodium) (Gaudichaud, 1841;Gray, 1849). The variation of plant shoot morphology between most, if not all, higher plant species can be understood by
considering it as the phylogenetic and ontogenetic modification of this fundamental unit.
Plants, in particular the model plant Arabidopsis thaliana, fulfill the above mentioned requirements. A classical attempt to describe the organization of the body of higher plants,including Arabidopsis, relies on the concept of phytomers. A phytomer is a repetitive unit that consists of a leaf, a leaf attachment site including an axillary bud (nodium) and an associated piece of stem (internodium) (Gaudichaud, 1841;Gray, 1849). The variation of plant shoot morphology between most, if not all, higher plant species can be understood byconsidering it as the phylogenetic and ontogenetic modification of this fundamental unit.
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