[1]徐芬芬,楚婕妤,刘誉,等.盐胁迫对大豆种子萌发过程中吸水和水解酶活性的影响[J].大豆科学,2017,36(01):74-77.[doi:10.11861/j.issn.1000-9841.2017.01.0074]
　XU Fen-fen,CHU Jie-yu,LIU Yu,et al.Effects of Salt Stress on Water Uptake and Hydrolytic Enzyme Activities During Soybean Seed Germination[J].Soybean Science,2017,36(01):74-77.[doi:10.11861/j.issn.1000-9841.2017.01.0074]
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盐胁迫对大豆种子萌发过程中吸水和水解酶活性的影响

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第36卷 期数: 2017年01期 页码: 74-77 栏目: 出版日期: 2017-01-20
Title:
Effects of Salt Stress on Water Uptake and Hydrolytic Enzyme Activities During Soybean Seed Germination
作者:
徐芬芬; 楚婕妤; 刘誉; 徐鹏; 胡志涛
上饶师范学院 生命科学学院，江西 上饶 334000
Author(s):
XU Fen-fen;  CHU Jie-yu;  LIU Yu ; XU Peng;  HU Zhi-tao
Life Science College,Shangrao Normal Unversity, Shangrao 334000, China
关键词:
盐胁迫; 大豆; 种子萌发; 淀粉酶活性; 蛋白酶活性
Keywords:
Salt stress;  Soybean;  Seed germination;  Amylase enzyme activity;  Protease enzyme activity
DOI:
10.11861/j.issn.1000-9841.2017.01.0074
文献标志码:
A
摘要:
利用不同浓度的NaCl溶液对两个品种的大豆种子进行胁迫萌发试验，研究了盐胁迫对大豆种子萌发的过程中吸水速率和水解酶活性的影响。结果表明：两品种大豆对NaCl胁迫的反应不同，低浓度（50 mmol·L-1）的NaCl对早熟毛豆种子吸水和萌发均有促进作用，而对1号毛豆为抑制作用，当盐胁迫浓度达100 mmol·L-1时，早熟毛豆和1号毛豆种子的发芽率、发芽势、发芽指数等均受到显著(P<0.05)和极显著(P<0.01)抑制。高浓度NaCl胁迫处理使大豆种子吸水受到显著抑制，进而引起淀粉酶活性和蛋白酶活性降低，可能是高盐胁迫抑制大豆种子萌发的主要原因；盐胁迫下早熟毛豆较快的吸水速率和较高的水解酶活性可能是其发芽率高于1号毛豆的原因。
Abstract:
The effects of salt stress on the water uptake rate and the activity of hydro-lase in soybean seeds were investigated under different salt concentrations. The results showed that the response to NaCl stress of the two varieties of soybean was different. The water absorption and germination of early-maturing soybean seeds under the low concentration (50 mmol·L-1) of NaCl were promoted, but were inhibited in the NO.1 soybean. When the salt concentration reached 100 mmol·L-1， the germination rate, germination potential and germination index of early-mature soybean and No.1 soybean seeds were all significantly (P<0.05) and extremely significant (P<0.01) inhibited. High salt concentration significantly inhibited the water uptake of soybean seeds, resulting in the decreasing of amylase activity and protease activity, which was the main reason for the inhibition of soybean seed germination under high salt stress. The faster rate of water absorption and the higher hydrolytic enzyme activities of early-maturing soybean under salt stress were the reason for its higher germination rate than that of No.1 soybean.

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备注/Memo

基金项目：2015年江西省教育厅科技项目(GJJ151055)；2015年上饶师范学院科技项目(201503)。

第一作者简介：徐芬芬（1978-），女，硕士，副教授，主要从事植物逆境生理研究。E-mail:xffylm7875@163.com。

更新日期/Last Update: 2017-03-14