Reduction of cadmium accumulation in field-grown plants

摘要

A plant or part thereof, which is a mutant or a part thereof that is at least partially reduced in expression or activity of at least two heavy metal ATPases (HMA), wherein the two HMAs are (i) SEQ ID NO: 1 and A polypeptide having at least 65% sequence identity to No. 2, (ii) a polynucleotide encoding the polypeptide according to (i), or (iii) SEQ ID NO: 3 and SEQ ID NO: 4 encoding HMA Comprising, consisting of, or consisting essentially of a polynucleotide having at least 65% sequence identity to it; wherein one of the HMAs described in (i) or (ii) or (iii) HMA described in (i) or (ii) or (iii), wherein one expression or activity is partially reduced or lost Expression or activity of the mutant plant is lost compared to the control plant; the mutant plant or a part of the mutant plant in the presence of natural or non-natural cadmium Described herein is the mutant plant or a portion thereof that exhibits at least a 27% reduction in cadmium accumulation in the leaf when compared to a control plant when grown in the field. . [Selection] Figure 1