胡麻种子发育过程中α-亚麻酸的积累规律
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摘要
利用气相色谱仪对3个不同质量分数α-亚麻酸品种进行脂肪酸组分分析,研究胡麻种子发育过程中α-亚麻酸积累规律。结果表明,其中硬脂酸、油酸、亚油酸的积累都发生在种子发育的早期;亚麻酸质量分数从种子发育开始就明显上升,在发育30~40d时略有下降,随后又上升。说明亚麻酸从种子发育开始到成熟都在积累。为了进一步了解胡麻种子发育过程中各脂肪酸之间的关系,对种子发育过程中的各脂肪酸进行相关性分析,认为其中棕榈酸、硬脂酸、油酸、亚油酸间呈正相关,它们与亚麻酸间均呈负相关。最后研究了3个品种的果实直径、鲜质量、干质量及干/鲜质量比,其中3个品种的果实直径趋势基本相同,果实直径的增长主要集中在初期,中后期基本保持平稳,甚至会有一点下降的趋势;果实鲜质量的变化从初期到收获一直呈下降趋势;而干质量呈先上升后下降的趋势;干/鲜质量比一直呈上升趋势。说明果实干物质积累主要集中在果实发育的前中期。
This article presents an analysis on fatty acid composition of three varieties with differentα-linolenic acid contents by agas chromatograph,to understandα-linolenic acid accumulation pattern in the development of flax seeds.Accumulations of stearic acid,oleic acid and linoleic acid occurred in the early development.Linolenic acid content significantly increased from the beginning of seed development and slightly decreased around 30-40 days after seeding,followed by an increase again.This fact indicated that linolenic acid has been accumulated from seeding to maturity.A correlation analysis among content of various fatty acids during seed development was conducted to understand the relationship among different types of fatty acids.Results showed that the contents of palmitic acid,stearic acid,oleic acid and linoleic acid were positively correlated with each other,but were negatively correlated with linolenic acid.Results indicated that fruit size increased mainly at the beginning of the development and remained stable or even shrinked slightly during the mid-late stages of seed development.This was the same among three varieties.Fruit fresh mass increased from the beginning to harvest,while the dry mass increased at the beginning and decreased in a later stage.Dry/fresh mass ra-tio increased during the whole process.This implied that fruit dry matter accumulated mainly in prometaphase of fruit development.
This article presents an analysis on fatty acid composition of three varieties with differentα-linolenic acid contents by agas chromatograph,to understandα-linolenic acid accumulation pattern in the development of flax seeds.Accumulations of stearic acid,oleic acid and linoleic acid occurred in the early development.Linolenic acid content significantly increased from the beginning of seed development and slightly decreased around 30-40 days after seeding,followed by an increase again.This fact indicated that linolenic acid has been accumulated from seeding to maturity.A correlation analysis among content of various fatty acids during seed development was conducted to understand the relationship among different types of fatty acids.Results showed that the contents of palmitic acid,stearic acid,oleic acid and linoleic acid were positively correlated with each other,but were negatively correlated with linolenic acid.Results indicated that fruit size increased mainly at the beginning of the development and remained stable or even shrinked slightly during the mid-late stages of seed development.This was the same among three varieties.Fruit fresh mass increased from the beginning to harvest,while the dry mass increased at the beginning and decreased in a later stage.Dry/fresh mass ra-tio increased during the whole process.This implied that fruit dry matter accumulated mainly in prometaphase of fruit development.
引文
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[8]LI Lan(李兰),PENG Zhenying(彭振英),CHEN Gao(陈高),et al.Accumulation Pattern of Acids during the Seed Development of Peanut[J].Acta Agriculturae BorealiSinica(华北农学报),2012(1):68-71(in Chinese with English abstract).
[9]Jeffery N M,Sanderson P,Sherrington E J.The ratio of n-6to n-3 polyvnsaturatcd fatty acids in the rat dict altcrs scrum lipid level and lymphocte function[J].Lipid,1996,31(7):737-745.
[10]Takahata K,Mmonobe K J,Taka M.The benefits and risks of n-3polyunsaturated fatty acids[J].Biosci Biotechnol Biochem,1998,62(1):2079-2085.
[11]Weber P C,Leaf A.Cardivascular effect of n-3fatty acids Atherosclerosis risk factor modification by n-3fatty acids[J].World Rev Nutr Diet,1991,66:218.
[12]DANG Zhao(党照),ZHAO Li(赵利).Application of the Near Infrared Reflectance Spectroscopy(NIRS)in Analyzing Flaxseed Germplasm Quality[J].Acta Agriculture Boreali-occidentalis Sinica(西北农业学报),2008,17(2):110-113(in Chinese with English abstract).
[13]ZHAO Li(赵利),DANG Zhanhai(党占海),LI Yi(李毅),et al.Characteristics of Flax Landrace Germplasms in Gansu Province[J].Acta Botanica Boreal-occident Sinica(西北植物学报),2006,26(12):2453-2457(in Chinese with English abstract).
[2]LI Xiaodan(李晓丹),WU Gang(吴刚),WU Yuhua(武玉花),et al.The Accumulative Pattern of Fatty Acids during the Development of Soybean Seeds[J].Soybean Science(大豆科学),2007,26(4):506-510(in Chinese with English abstract).
[3]LI Baolong(李宝龙),LIN Yingjie(林英杰),ZHAO Huajian(赵华建),et al.Accumulation Pattern of Fatty Acids during the Seed Development of Peanut[J].Peanut Science(花生学报),2009,38(2):11-14(in Chinese with English abstract).
[4]LI Xiaodan(李晓丹),XIAO Ling(肖玲),WU Gang(吴刚),et al.Study on the accumulation pattern of fatty acids during development of sesame seeds[J].Chinese Journal of Oil Crop Sciences(中国油料作物学报),2008,30(1):84-89(in Chinese with English abstract).
[5]QU Shuping(屈淑萍),CHANG Ying(常影),QIN Junfen(秦俊芬),et al.Accumulation patterm of fatty acids during pumpkin(Cucurbita maxima duch)seed development[J].Chinese Journal of Oil Crop Sciences(中国油料作物学报)2011,33(6):628-631(in Chinese with English abstract).
[6]ZHANG Yunda(张运达),WANG Fengqin(王凤琴),YAO Yiping(姚一萍),et al.Sunflower seeds sunflower crude protein,crude fat and fatty acidaccumulation and content of oil[J].Inner Mongolia Agricultural Science and Technology(内蒙古农业科技),1990(3):105-107(in Chinese with English abstract).
[7]LIU Nian(刘念),HAN Changren(韩长仁),MENG Daqing(蒙大庆),et al.Accumulation pattern of fatty acids during seed development of rape seed cultivars with high or low erucic acid content[J].Acta Agriculture Jiangxi(江西农业学报),2013(10):27-30(in Chinese with English abstract).
[8]LI Lan(李兰),PENG Zhenying(彭振英),CHEN Gao(陈高),et al.Accumulation Pattern of Acids during the Seed Development of Peanut[J].Acta Agriculturae BorealiSinica(华北农学报),2012(1):68-71(in Chinese with English abstract).
[9]Jeffery N M,Sanderson P,Sherrington E J.The ratio of n-6to n-3 polyvnsaturatcd fatty acids in the rat dict altcrs scrum lipid level and lymphocte function[J].Lipid,1996,31(7):737-745.
[10]Takahata K,Mmonobe K J,Taka M.The benefits and risks of n-3polyunsaturated fatty acids[J].Biosci Biotechnol Biochem,1998,62(1):2079-2085.
[11]Weber P C,Leaf A.Cardivascular effect of n-3fatty acids Atherosclerosis risk factor modification by n-3fatty acids[J].World Rev Nutr Diet,1991,66:218.
[12]DANG Zhao(党照),ZHAO Li(赵利).Application of the Near Infrared Reflectance Spectroscopy(NIRS)in Analyzing Flaxseed Germplasm Quality[J].Acta Agriculture Boreali-occidentalis Sinica(西北农业学报),2008,17(2):110-113(in Chinese with English abstract).
[13]ZHAO Li(赵利),DANG Zhanhai(党占海),LI Yi(李毅),et al.Characteristics of Flax Landrace Germplasms in Gansu Province[J].Acta Botanica Boreal-occident Sinica(西北植物学报),2006,26(12):2453-2457(in Chinese with English abstract).