EFFECT OF SALINITY ON MOISTURE CONTENT, PIGMENT SYSTEM, AND LIPID COMPOSITION IN EPHEDRA ALATA DECNE
EFFECT OF SALINITY ON MOISTURE CONTENT, PIGMENT SYSTEM, AND LIPID COMPOSITION IN EPHEDRA ALATA DECNE
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DOI：
10.1556/abiol.65.2014.1.6
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发表时间：
2014-03-01
影响因子：
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通讯作者：
Huqail, Asma A.
中科院分区：
文献类型：
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作者：
Alqarawi, A. A.;Hashem, Abeer;Huqail, Asma A.
以阿拉塔麻黄（Ephedra alata Decne）为试材，研究了盐胁迫对麻黄地上部含水率、色素含量和脂类组成的影响。结果表明，盐分胁迫导致植物含水量显著下降。Chl.随着盐浓度的增加，a、B和类胡萝卜素显着减少。总色素含量也表现出下降，在所有盐胁迫水平。盐胁迫导致E.阿拉塔。此外，盐胁迫引起的所有磷脂组分的显着下降，除了磷脂酸增加盐胁迫期间。盐胁迫导致E. alalta。
The present work was carried out to uncover the effect of salinity stress on shoot moisture percentage, pigment content and lipid composition of Ephedra alata Decne. The results suggested that salinity caused significant decrease in plant moisture content. The chl. a, b and carotenoids showed significant decrease with increasing concentration of salt. Total pigment content also showed decline at all salt stress levels. Salt stress caused significant decrease in total lipids (TL), triacylglycerol (TG) and sterol (S) accompanied with an increase in diacylglycerol (DG), sterol ester (SE), and non-esterified fatty acids (FAA) of E. alata. Moreover, saline stress caused significant decrease in all phospholipid fractions except phosphatidic acid which increases during salt stress. Salinity stress resulted in increase of saturated fatty acids and decreases the percentage of un-saturated fatty acids in E. alalta.