稀土学报（英文版）
稀土學報（英文版）
희토학보（영문판）
JOURNAL OF RARE EARTHS
2014年
5期
467-475
,共9页
胡能兵%隋益虎%蔡永萍%樊洪泓%林毅
鬍能兵%隋益虎%蔡永萍%樊洪泓%林毅
호능병%수익호%채영평%번홍홍%림의
lanthanum chloride%pepper%salt stress%POD%DNA methylation%rare earths
Pepper seedlings were hydroponically cultivated in 0-20 mg/L extraneous lanthanum chloride (La3+) for different numbers of days to investigate its regulating effects under salt stress. The results showed that, depending on the salt stress of 0.75 g/L, a lower concentration of La3+(1.0 mg/L) might result in the lowest death rate, increase POD activity and change the band type of the stem and root on the 8th day. Furthermore, a methylation analysis by the methylation-sensitive amplified polymorphism (MSAP) technique indicated that a lower concentration of La3+ (1.0 mg/L) triggered the lowest methylation level of 26.1%, of which the hypermethylation events were the primary type of methylation. In addition, the sequencing of 14 differ-entially expressed polymorphic fragments and the subsequent blast search revealed that La3+ could induce methylation events in salt-tolerance sequences.
