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Journal of Zhejiang University SCIENCE B 2009 Vol.10 No.4 P.251-257


Response of ATP sulfurylase and serine acetyltransferase towards cadmium in hyperaccumulator Sedum alfredii Hance

Author(s):  Wei-dong GUO, Jun LIANG, Xiao-e YANG, Yue-en CHAO, Ying FENG

Affiliation(s):  College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China; more

Corresponding email(s):   xyang@zju.edu.cn

Key Words:  Sedum alfredii Hance, Cadmium (Cd), Adenosine-triphosphate (ATP) sulfurylase (ATPS), Hyperaccumulator, Serine acetyltransferase

Wei-dong GUO, Jun LIANG, Xiao-e YANG, Yue-en CHAO, Ying FENG. Response of ATP sulfurylase and serine acetyltransferase towards cadmium in hyperaccumulator Sedum alfredii Hance[J]. Journal of Zhejiang University Science B, 2009, 10(4): 251-257.

@article{title="Response of ATP sulfurylase and serine acetyltransferase towards cadmium in hyperaccumulator Sedum alfredii Hance",
author="Wei-dong GUO, Jun LIANG, Xiao-e YANG, Yue-en CHAO, Ying FENG",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Response of ATP sulfurylase and serine acetyltransferase towards cadmium in hyperaccumulator Sedum alfredii Hance
%A Wei-dong GUO
%A Xiao-e YANG
%A Yue-en CHAO
%A Ying FENG
%J Journal of Zhejiang University SCIENCE B
%V 10
%N 4
%P 251-257
%@ 1673-1581
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B0820169

T1 - Response of ATP sulfurylase and serine acetyltransferase towards cadmium in hyperaccumulator Sedum alfredii Hance
A1 - Wei-dong GUO
A1 - Jun LIANG
A1 - Xiao-e YANG
A1 - Yue-en CHAO
A1 - Ying FENG
J0 - Journal of Zhejiang University Science B
VL - 10
IS - 4
SP - 251
EP - 257
%@ 1673-1581
Y1 - 2009
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B0820169

We studied the responses of the activities of adenosine-triphosphate (ATP) sulfurylase (ATPS) and serine acetyltransferase (SAT) to cadmium (Cd) levels and treatment time in hyperaccumulating ecotype (HE) Sedum alfredii Hance, as compared with its non-hyperaccumulating ecotype (NHE). The results show that plant growth was inhibited in NHE but promoted in HE when exposed to high Cd level. Cd concentrations in leaves and shoots rapidly increased in HE rather than in NHE, and they became much higher in HE than in NHE along with increasing treatment time and Cd supply levels. ATPS activity was higher in HE than in NHE in all Cd treatments, and increased with increasing Cd supply levels in both HE and NHE when exposed to Cd treatment within 8 h. However, a marked difference of ATPS activity between HE and NHE was found with Cd treatment for 168 h, where ATPS activity increased in HE but decreased in NHE. Similarly, SAT activity was higher in HE than in NHE at all Cd treatments, but was more sensitive in NHE than in HE. Both ATPS and SAT activities in NHE leaves tended to decrease with increasing treatment time after 8 h at all Cd levels. The results reveal the different responses in sulfur assimilation enzymes and Cd accumulation between HE and NHE. With increasing Cd stress, the activities of sulfur assimilation enzymes (ATPS and SAT) were induced in HE, which may contribute to Cd accumulation in the hyperaccumulator Sedum alfredii Hance.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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