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    <mxCell id="node2" value="策略1：过表达(+)-valencene合酶CnVS并工程化MVA途径（tHMG1、ERG20融合、ERG9下调）" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;fontSize=11;verticalAlign=middle;align=center;" vertex="1" parent="1">
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    <mxCell id="node3" value="结果1：(+)-valencene产量达217.95 mg/L，比对照提高19倍" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#fff2cc;strokeColor=#d6b656;fontSize=12;verticalAlign=middle;align=center;" vertex="1" parent="1">
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    <mxCell id="node4" value="策略2：共表达HPO P450酶和ATR1氧化(+)-valencene，筛选SDR脱氢酶" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;fontSize=11;verticalAlign=middle;align=center;" vertex="1" parent="1">
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    <mxCell id="node5" value="结果2：HPO/ATR1产9.66 mg/L，主要产物为β-nootkatol" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#fff2cc;strokeColor=#d6b656;fontSize=12;verticalAlign=middle;align=center;" vertex="1" parent="1">
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    <mxCell id="node6" value="关键改造：额外过表达ZSD1或ABA2催化β-nootkatol氧化为(+)-nootkatone" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#f8cecc;strokeColor=#b85450;fontSize=12;verticalAlign=middle;align=center;" vertex="1" parent="1">
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