摘要: The emission of low molecular mass hydrocarbons by many plants has long been recognized, particularly through effects on atmospheric chemistry. However, until recently the reasons why produced these compounds and how production was achieved had remained unclear. Studies specific — leaf alcohol, methanol, acetone isoprene are now resolving some synthetic pathways involved elucidating possible functions. Although may simply be by-products normal metabolism, or for removal waste, others have highly physiological roles.