Polyamines and ethylene changes during germination of different plant species under salinity
Polyamines and ethylene changes during germination of different plant species under salinity
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DOI：
10.1016/j.plantsci.2004.05.014
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发表时间：
2004-10-01
期刊：
影响因子：
5.2
通讯作者：
Botella, MA
中科院分区：
文献类型：
--
作者：
Zapata, PJ;Serrano, M;Botella, MA
以菠菜（Spinacia oleracea L.）为试材，研究了盐胁迫对不同植物种子萌发率、幼苗生长、乙烯释放、呼吸强度和多胺含量的影响，莴苣（莴苣），甜瓜（Cucumis梅洛L.），辣椒（Capsicum annum L.），花椰菜（Brassica oleraceae L.）变种Italica Plenk.），甜菜根（Beta vulgaris L.）变种crassa（Alef.）J. Helm.）和番茄（Lycopersicon esculentum Mill.）。种子在对照（NaCl 1 mM）和盐水（100或150 mM NaCl）条件下发芽。盐胁迫降低了幼苗鲜重和发芽率，但菠菜例外。盐对莴苣发芽率的影响最小。除菠菜外，所有物种的呼吸速率均随盐度的增加而增加，而乙烯的产生在某些物种中增加，在其他物种中减少，游离和总的1-氨基环丙烷-1-羧酸（ACC）也是如此。多胺含量随盐度的变化而变化，腐胺（Put）在大多数情况下下降，而亚精胺（Spd）和/或精胺（Spm）增加。（Spd + Spm）/Put比值随盐度的增加而增加，说明所有物种的耐盐性都增加。得到的结果表明，不同的植物物种的一般反应，多胺生产的盐度，但不与乙烯生产。(C)2004爱思唯尔爱尔兰有限公司保留所有权利。
The effect of salinity on germination percentage, seedling growth, ethylene production, respiration rate and polyamine levels was studied in different plant species: spinach (Spinacia oleracea L.), lettuce (Lactuca sativa L.), melon (Cucumis melo L.), pepper (Capsicum annum L.), broccoli (Brassica oleraceae L. var. Italica Plenk.), beetroot (Beta vulgaris L. var. crassa (Alef.) J. Helm.) and tomato (Lycopersicon esculentum Mill.). Seeds were germinated under control (NaCl 1 mM) and saline (100 or 150 mM NaCl) conditions. Generally, salinity decreased seedling fresh weight and germination percentage, spinach being the exception. The lowest effect of salinity on germination percentage was found with lettuce. Respiration rate increased with salinity in all species except spinach, while ethylene production increased in some species and decreased in others, as did free and total 1-aminocyclopropane-1-carboxylic acid (ACC). Polyamine levels changed with salinity, in most cases putrescine (Put) decreased while spermidine (Spd) and/or spermine (Spm) increased. That the ratio (Spd + Spm)/Put increased with salinity in all studied species would infer increased tolerance to salinity. Results obtained showed a general response by different plant species to salinity in relation to polyamine production, but not with regard to ethylene production. (C) 2004 Elsevier Ireland Ltd. All rights reserved.