Structure Determination of a Natural Juvenile Hormone Isolated from a Heteropteran Insect

<table>Radiochemical assay for JH biosynthesis. Incubation of CA from <i>Plautia stali</i> adults in a medium containing radiolabeled methionine revealed the presence of an unknown product with an <svg height="18.362499" id="M2" style="vertical-align:-5.76984pt" version="1.1" viewbox="0 0 19.3375 18.362499" width="19.3375" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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t-115.5 -72q40 -86 66 -133q39 -68 65 -101q28 -37 73 -51zM491 483q0 67 -33.5 101t-91.5 34q-35 0 -51 -10q-13 -8 -20 -48l-45 -245h49q71 0 113 28q79 52 79 140z" id="x1D445"></path></g>
<g transform="matrix(.012,-0,0,-.012,11.013,15.188)"><path d="M619 670q0 -13 -9 -26t-18 -19q-13 -10 -25 2q-36 38 -66 38q-31 0 -54.5 -50t-45.5 -185h120l-20 -31l-107 -12q-23 -138 -57 -293q-27 -122 -55 -184.5t-75 -109.5q-60 -61 -114 -61q-25 0 -47.5 15t-22.5 31q0 17 31 44q11 8 20 -1q10 -11 31 -19t35 -8q26 0 47 19
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</svg> value different from those of JH I, JH III, or JHB<sub>3</sub> in TLC analysis.</table>

Psyche: A Journal of Entomology

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Figure 2

Figure 2: Structure Determination of a Natural Juvenile Hormone Isolated from a Heteropteran Insect 