元宝枫种子发育过程中油脂积累与可溶性糖、蛋白质之间的关系
2021-09-17马秋月王亚楠李淑顺闻婧朱璐颜坤元李淑娴任杰张斌李倩中
马秋月 王亚楠 李淑顺 闻婧 朱璐 颜坤元 李淑娴 任杰 张斌 李倩中



摘要: 元宝枫是中国重要的木本油料树种,具有重要的观赏价值和药用价值。本研究对元宝枫种子发育过程中脂肪酸含量的动态变化以及油脂积累与可溶性糖积累和蛋白质积累之间的关系进行分析。结果表明,油体和蛋白体在元宝枫花后80 d时开始发育,且后期数量均大量增多,直至填滿整个细胞。元宝枫种子发育过程中,油脂含量整体呈现“上升-下降-上升”的趋势,其中油酸和亚油酸是2种主要的脂肪酸,且积累模式大致相同;蛋白质含量在种子发育过程中不断增加,在花后210 d达到最大值(161.18 mg/g),且蛋白质积累与油脂积累呈显著正相关(P>0.05)。本研究结果为元宝枫育种和栽培管理提供了重要理论依据。
关键词: 元宝枫;种子发育;脂肪酸;可溶性糖;蛋白质
中图分类号: S789.5 文献标识码: A 文章编号: 1000-4440(2021)04-0982-08
The lipid accumulation and its relationship with soluble sugar and protein in Acer truncatum Bunge seeds development
MA Qiu-yue1, WANG Ya-nan2, LI Shu-shun1, WEN Jing1, ZHU Lu1, YAN Kun-yuan1, LI Shu-xian2,REN Jie3, ZHANG Bin2, LI Qian-zhong1
(1.Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;2.Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China;3.Institute of Agricultural Engineering, Anhui Academy of Agricultural Sciences, Hefei 230031, China)
Abstract: Acer truncatum Bunge is an important woody oil tree with ornamental and medicinal values in China. The dynamic changes of fatty acid content and the relationship of oil accumulation with soluble sugar accumulation and protein accumulation were analyzed during the development of A. truncatum seeds. The results showed that oil bodies and protein bodies were firstly observed at 80 d after flowering, and the number gradually increased until the whole cell was filled. The lipid content showed an upward-downward-upward trend in the seed development. Oleic acid and linoleic acid were two main fatty acids, and the accumulation patterns were similar. The protein content increased continuously during seed development and reached the maximum value(161.18 mg/g) at 210 d after flowering. Protein accumulation was positively correlated with the lipid accumulation (P>0.05). The results of this study would provide a theoretical basis for the breeding and cultivation management of A. truncatum.
Key words: Acer truncatum;seed development;fatty acid;soluble sugar;protein
油脂是人类维持生命活动所需能量的主要来源,食用植物油的需求量随着经济的发展以及人民生活质量的提高逐步增加。中国对食用油的需求量也不断加大,食用油供给紧缺,寻找品质好、使用价值高的木本油料作物已经成为国家食品发展的重要议题之一。木本油料加工是中国的传统工业,其油脂中含有大量的不饱和脂肪酸和功能性脂肪酸,不仅可以食用还能起到保健作用,是优质的食用油来源[1-3]。
元宝枫(Acer truncatum)作为著名秋季观叶树种,除具有很高的观赏价值外,也是中国重要的多功能木本油料树种[4-7]。其种……
