Effect of sea salt and L-ascorbic acid on the seed germination of halophytes

被引：46
|
作者：
Khan, M. Ajmal [1 ]
Ahmed, M. Zaheer [1 ]
Hameed, A. [1 ]
机构：
[1] Univ Karachi, Dept Bot, Karachi 75270, Pakistan
来源：
JOURNAL OF ARID ENVIRONMENTS | 2006年 / 67卷 / 03期
关键词：
antioxidants; reactive oxygen species; oxidative stress; water potential; ionic toxicity;
D O I：
10.1016/j.jaridenv.2006.03.001
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
Effects Of L-ascorbic acid and sea salt solutions on the seed germination of Atriplex stocksii, Arthrocnemum macrostachyum, Haloxylon stocksii, Suaeda fruticosa, Desmostachya bipinnata and Aeluropus lagopoides were studied. Increasing concentration of sea salt inhibited seed germination of all species with comparatively more adverse effect on A. stocksii and S. fruticosa than others. Pretreatment of seeds with L-ascorbic acid alleviated the sea salt effects only in these species, i.e. A. stocksii and S. firuticosa, where as A. macrostachyum, H. stocksii, D. bipinnata and A. lagopoides remained unaffected. This indicates the variability of metabolic responses to salinity effects during seed germination. (c) 2006 Elsevier Ltd. All rights reserved.
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页码：535 / 540
页数：6
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