natural-products-in-plant-pest-management

54 J.C. Pretorius and E. van der WattCOO –COOHNH 3+NH 3+COO –NHNHPhenyl alanine Tryptophan Auxin (IAA)(indole acetic acid)Fig. 3.14. Non-phenolic aromatic compounds.H 2 C=CHHCH 3(H-C=O for chlorophyll b)H 3 CNNCH 2 CH 3HH 3 CHONNHHCO =MgCCH 2 CH 2C–OCH 3CH 3CHHOH H HO - CH 2 -C=C-CH 2 -CH 2 -CH 2 -C-CH 2 -CH 2 -CH 2 -C-CH 2 -CH 2 -CH 2 -C-HCH 3CH 3CH 3CH 3Phytol ‘tail’(C 20 H 39 )Chlorophyll a and bRO OHN NH HHN NS-Protein– OOCCOO –Phytochrome (P f -form)Fig. 3.15. Non-phenolic chlorophyll and phytochrome.