| 棉花突变体种子脂肪酸成分变化的诱导 |
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| 引用本文： | Annamalai MUTHUSAMY,Narayanasamy,JAYABALAN.棉花突变体种子脂肪酸成分变化的诱导[J].棉花学报,2003,15(2):113-119. |
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| 作者姓名： | Annamalai MUTHUSAMY Narayanasamy JAYABALAN |
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| 作者单位： | 印度巴拉斯得山大学生命科学院植物科学系,泰米尔纳都邦提卢齐拉帕利,620024 |
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| 摘 要： | 油分在种子中的积累是生物合成的典型范例,其最终产物的多样性和多功能性,使得可通过遗传控制来有目的地提高种子的品质.种子油分含量的自然遗传倾向于低油分方向筛选.而目前,一系列新的育种目标逐渐拓展,以适应生物油脂化工的发展.另外,生物技术的不断创新也为食用及非食用油料作物突变体驯化甚至创造全新作物提供了便利.本研究分析了突变体种子的油分和脂肪含量及脂肪酸的构成,其中第11、7、2、9和5号突变体油分含量较高,这些突变体脂类含量增加了两倍.气相色谱分析表明,第11号突变体脂肪酸含量最高,其次为第7、2、9和5号突变体,在14种脂肪酸中,顺式亚油酸含量在各突变体中均为最高.
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| 关 键 词： | 棉花 诱变 突变体 油分和脂类 脂肪酸 气相色谱分析 |
Induced Alterations in Fatty Acid Compositionsin the Mutant Seeds of Gossypium Hirsutum L. |
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| Annamalai MUTHUSAMY,Narayanasamy JAYABALAN.Induced Alterations in Fatty Acid Compositionsin the Mutant Seeds of Gossypium Hirsutum L.[J].Cotton Science,2003,15(2):113-119. |
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| Authors: | Annamalai MUTHUSAMY Narayanasamy JAYABALAN |
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| Abstract: | Oil storage in seeds offers an outstanding example of biosynthetic process, the end products of which are diverse and sufficiently flexible in their genetic control to allow for economically desired improvements of product quality. Genetic selection for oil seed quality has been of low intensity in nature and today an expanding array of new breeding goals for bio-oleochemical and technical uses is in progress. In addition, biotechnological innovations offer promising support to mutation breeding for the domestication or even construction of virtually new oilseed crops for application in both food and non-food uses. The purpose of this paper is to analyze the oil, lipid content and composition of fatty acid on the seeds of selected mutants. The mutant 11, 7, 2, 9 and 5 showed higher oil, lipid content than other mutants and control. These mutants also have two fold increase in lipid contents. The Gas-chromatographic analysis of fatty acids revealed that, the mutant 11 shows higher amount of fatty acids followed by mutant 7, 2, 9 and 5. Among the 14 fatty acids qualified, the highest amount in terms of mg@g-1 was noted in Cis-Linoleic acid individually between the mutants and totally among the mutants. |
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| Keywords: | Gossypium mutagenesis mutants oil and lipids GC analysis of fatty acids |
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