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Creators/Authors contains: "Zuo, Zhaojiang"

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  1. Plants synthesize thousands of volatile organic compounds (VOCs) (see Glossary), which mainly include isoprene (C5, hemiterpene) and monoterpenes (C10) from the methylerythritol-4-phosphate pathway (MEP) in chloroplasts (Figure 1). Sesquiterpenes and diterpenes are less volatile and are not discussed here. Global emissions are estimated to range from 300 to 440 Tg C·year–1 for isoprene and 90 to 100 Tg C·year–1 for monoterpenes [1., 2., 3.]. Biosynthesis of isoprenoids consumes 1–2% of carbon fixed by photosynthesis under normal conditions and >10% under stress, especially under high temperature [4., 5., 6.]. In nature, the highest emissions of isoprenoids are also detected during the hottest months of the year, as a result of an increase in the abundance of precursors, related enzyme activities, gene expression, and diffusion rates (of storage monoterpenoids) 
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    Free, publicly-accessible full text available June 1, 2026