Gradient elution used as the mobile phase for HPLC analysis. Antioxidant Activity 2. Phosphomolybdenum Method The total antioxidant activity was evaluated by the phosphomolybdenum method according to Pierto et al. Aliquots of 0. Ascorbic acid was used as the reference standard.
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GW]; Cecropia obtusifolia [mistaken of authors]; Cecropia adenopus Mart. Comments: Widespread and common invasive in inland Rarotonga from inland valley floors to Cloud Zone. Rapidly colonised any open area. Not present in Cheeseman flora, and noted as an uncommon tree in the s Wilder survey.
No control programme. Finger-like spikes of small flowers and fruits are a favorite food of Pacific Pigeon and Pacific Fruit-bat, which probably assist in its dispersal.
FRUIT tiny, ovoid, 3x1mm. SEED one, ovoid, 2x1mm. The trees grow one section, called an internode, and then develops another leaf. The lengthening internode has a soft pith surrounded by very hard capsule of sclerenchyma.
The pith is withdrawn to leave a hollow cylindrical capsule with a little pith on the walls, and woody tissue grows on the outside of the capsule. The founding queen ant lands on a young sappling and eats through a special structure, the prostoma, to enter and seal herself inside the hollow internodal capsule. Sealed inside she raises her first batch of worker ants.
The workers reopen the door and spend their lives gathering the glycogen food beads produced by a special structure, the trichilium, at the base of young leaves. The relationship looks like mutualism, although there is some debate. In some cases the ants prevent the growth of vines and reduce the activity of herbivorous insects, but at other times the tree does not appear to benefit.
The ants clearly benefit by having a secure home and a source of food. References: p. Index of Garden Plants p.
Embaúba - Cecropia pachystachya
Taxonomic history[ edit ] Cecropia was first recognized and accounted for by Marcgrave and Piso , the latter including an illustration with characteristic features. Many species were also described by Hemsley , Richter , Donnell Smith , Rusby , , Huber , Robinson , Pittier , Bailey , and the most extensive number by Snethlage , When phylogenetic data became available, Cecropia was then moved back into the Urticaceae. The trees consist of very few branches, usually with candelabrum-like branching system. In the axils of the leaves formed during later development, the axillary branch primordiae do not produce more than one or two prophylls and a bud.