Difference between Pb and Cd accumulation in 19 elite maize inbred lines and application prospects.
In the last two decades, the accumulation of heavy metal in crop grains has become the study hotspot. In this study, 19 representative elite maize inbred lines and 3 hybrid varieties were investigated at the seedling stage, which can accumulate Pb and Cd in the stems and leaves, respectively. The results demonstrated that significant differences are among inbred lines for accumulation of heavy metals, implying that the Cd accumulation is significant correlation between the male parents and their hybrids and some inbred lines have been selected for cross-breeding with low Pb or Cd accumulation, such as S37, 9782, and ES40; Moreover, some inbred lines could be suitable for phytoremediation species for soil bioremediation with high levels of Pb and Cd accumulation, including 178, R08, 48-2, and Mo17ht.
Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu Campus, 211 Huimin Road, Wenjiang, Sichuan 611130, China.
Zhiming
Z
Zhang
Feng
F
Jin
Cui
C
Wang
Jun
J
Luo
Haijian
H
Lin
Kui
K
Xiang
Li
L
Liu
Maojun
M
Zhao
Yunsong
Y
Zhang
Haiping
H
Ding
Shufeng
S
Zhou
Yaou
Y
Shen
Guangtang
G
Pan
D001673:Biodegradation, Environmental; D002104:Cadmium / Q000493:pharmacokinetics*; D007178:Inbreeding; D007854:Lead / Q000493:pharmacokinetics*; D003313:Zea mays / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*
D002104:Cadmium; D007854:Lead