This issue of Engineering was compiled from papers presented at the First International Conference on Green Plant Protection Innovation(1st ICGPPI),held in Haikou in May 2018,and the Second International Conference on...This issue of Engineering was compiled from papers presented at the First International Conference on Green Plant Protection Innovation(1st ICGPPI),held in Haikou in May 2018,and the Second International Conference on Green Plant Protection Innovation(2nd ICGPPI),held in Guiyang in October 2019.The conferences were sponsored by the Chinese Academy of Engineering,and the Academic Committee of the Forum of the ICGPPI,chaired by Professor Baoan Song,organized the conference.The 1st ICGPPI was attended by more than 800 people from seven countries,while the 2nd ICGPPI had more than 200 attendees from nine countries.The wide range of topics related to more environmentally sound crop protection was of great interest to all,and the meetings provided provided an opportunity for scientists from many disciplines of crop protection to exchange and share ideas and advances.展开更多
No herbicide with a new molecular site of action(SOA)has been introduced since the 1980s.Since then,the widespread evolution of resistance of weeds to most commercial herbicides has greatly increased the need for herb...No herbicide with a new molecular site of action(SOA)has been introduced since the 1980s.Since then,the widespread evolution of resistance of weeds to most commercial herbicides has greatly increased the need for herbicides with new SOAs.Two untried strategies for the discovery on new herbicide SOAs are discussed.Some primary metabolism intermediates are phytotoxic(e.g.,protoporphyrin IX and sphingoid bases),and,because of this,the in vivo concentrations of these compounds are maintained at very low levels by plants.The determination of all primary metabolite phytotoxicities and pool sizes will identify targets of interest.Targeting SOAs that result in accumulation of phytotoxic compounds is the first novel approach to herbicide discovery.The second approach is to identify potential SOAs with very low in vivo enzyme levels.We know that higher numbers of enzyme molecules for a SOA requires more herbicide to kill a plant.Modern proteomic methods can identify low enzyme level SOAs for biorational herbicide discovery.These approaches might be useful in discovery of herbicides more closely related to natural compounds and that can be used in lower doses.展开更多
文摘This issue of Engineering was compiled from papers presented at the First International Conference on Green Plant Protection Innovation(1st ICGPPI),held in Haikou in May 2018,and the Second International Conference on Green Plant Protection Innovation(2nd ICGPPI),held in Guiyang in October 2019.The conferences were sponsored by the Chinese Academy of Engineering,and the Academic Committee of the Forum of the ICGPPI,chaired by Professor Baoan Song,organized the conference.The 1st ICGPPI was attended by more than 800 people from seven countries,while the 2nd ICGPPI had more than 200 attendees from nine countries.The wide range of topics related to more environmentally sound crop protection was of great interest to all,and the meetings provided provided an opportunity for scientists from many disciplines of crop protection to exchange and share ideas and advances.
文摘No herbicide with a new molecular site of action(SOA)has been introduced since the 1980s.Since then,the widespread evolution of resistance of weeds to most commercial herbicides has greatly increased the need for herbicides with new SOAs.Two untried strategies for the discovery on new herbicide SOAs are discussed.Some primary metabolism intermediates are phytotoxic(e.g.,protoporphyrin IX and sphingoid bases),and,because of this,the in vivo concentrations of these compounds are maintained at very low levels by plants.The determination of all primary metabolite phytotoxicities and pool sizes will identify targets of interest.Targeting SOAs that result in accumulation of phytotoxic compounds is the first novel approach to herbicide discovery.The second approach is to identify potential SOAs with very low in vivo enzyme levels.We know that higher numbers of enzyme molecules for a SOA requires more herbicide to kill a plant.Modern proteomic methods can identify low enzyme level SOAs for biorational herbicide discovery.These approaches might be useful in discovery of herbicides more closely related to natural compounds and that can be used in lower doses.
