Research progress on the role of polyamines and their transporters in paraquat resistance in weeds

The forms,transportation and metabolism of polyamines,as well as the roles of polyamines in plant were reviewed,and the latest paraquat resistance mechanism in weed was summarized.Much discussion was focus on the alleviation of the paraquat toxicity by polyamines and the important role of polyamines transporter plays in the weed resistance to paraquat.Polyamines and their transporters may be one important area in the study of paraquat resistance mechanism.