U. attenuata

Phillipson el al have also carried out an extensive survey of the alkaloidal content of this genus based on investigations of herbarium samples using TLC and GCMS [72]. Plants of this genus provide mainly heteroyohimbines, oxindoles and yohimbines. Chemical studies of several species from Thailand such as U. attenuata, U. canescans, U. elliplica, U. homomalla and U. macropylla have also been carried out by Phillipson and others [73-78]. A chemotaxonomic... 

Hermsmeier D, Schittko U, Baldwin IT. 2001. Molecular interactions between the specialist herbivore Manduca sexta (Lepidoptera, Sphigidae) and its natural host Nicotiana attenuata. I. Large-scale changes in the accumulation of growth- and defense-related plant mRNAs. Plant Physiol 125 683-700. 

Agrawal, S.C. and Sharma, U.K., Chemical and biological properties of culture filtrates of Westiellopsis prolifica and Chaetophora attenuata, Israel J. Plant Sci., 44, 43, 1996. 

Table 1 Oxindole Alkaloids of Uncaria attenuata, U. orientalis and U. canescens.

SCHITTKO, U., BALDWIN, I.T., Constraints to herbivore-induced systemic responses Bidirectional signaling along orthostichies in Nicotiana attenuata, J. Chem. EcoL, 2003, 29, 763-770. 

Uncaria attenuata Koith. U. orientalis Guill. U. canescens Koith. Rubiaceae Dicotyledons Leaves Hannan [25]... 

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