Environmental Engineering Reference
In-Depth Information
Chapter 7
C
OMPARATIVE
P
HYSIOLOGICAL
S
TUDY BETWEEN
C
ULTIVATED AND
W
ILD
S
OYBEAN
S
PECIES UNDER
S
ALT
S
TRESS
Peng Chen
1,4,6,
†
, Hongyan Wang
1,3,6,†
, Xiaoli Tang
1,6
,
Marian Brestic
1,5
and Hong-Bo Shao
1,2,
*
1
Key Laboratory of Coastal Biology & Bioresources Utilization, Yantai Institute of
Coastal Zone Research (YIC),
Chinese Academy of Sciences (CAS), Yantai, China
2
Institute for Life Sciences, Qingdao University of Science & Technology (QUST),
Qingdao, China
3
Yantai Academy of China Agriculture University, Yantai, China
4
State Key Laboratory of Biological Fermentation Engineering of Beer,
Tsingtao Brewing Ltd., Qingdao, China
5
Department of Plant Physiology, Slovak Agricultural University,
Nitra, Slovak Republic
6
University of Chinese Academy of Sciences, Beijing, China
A
BSTRACT
This study compared the effects of salt stress on the growth, photosynthesis, proline
content and ion accumulation in seedlings of cultivated soybean ZH13 and wild soybean
BB52. The results showed that salt stress markedly reduced the growth of two varieties,
but BB52 grew better than ZH13 at the same salt stress. Then we speculated the reason
was that it owned better abilities to maintain photosynthesis efficiency, osmotic
adjustment and ion homeostasis. With increasing salinity, the higher Pn, CE and
chlorophyll content in BB52 facilitated its better growth. Besides, the higher
accumulation of proline under salt stress ensured its less decreases of ψ
w
and RWC. And
†
These two authors contributed equally to this work and should be considered as co-first authors.
*
Corresponding authors: Email:
shaohongbochu@126.com (
HB SHAO); Tel: +86-0532-84023984; Fax: +86-0532-
84023984; Posting address: Dr. Professor Hong-Bo Shao, Zhengzhou Rd.53, Institute for Life Sciences,
