甘薯茎叶中花青素的定位及含量测定.pdfVIP

Botanical Research 植物学研究, 2017, 6(2), 31-38 Published Online March 2017 in Hans. /journal/br /10.12677/br.2017.62006 Location and Relative Quantity of Anthocyanidin in the Aboveground Parts of Sweetpotato 1 1 2 1 1 3 3* Xiaolei Ma , Xiali Gao , Wenqing Ye , Dong Wu , Xiaohe Gu , Meng Kou , Daifu Ma , Aimin Wang1* 1 College of Life Science, Jiangsu Normal University, Xuzhou Jiangsu 2 School of Electronic Information Engineering, Soochow University, Suzhou Jiangsu 3 Xuzhou Institute of Agricultural Science, Xuhuai District, Xuzhou Jiangsu th th th Received: Feb. 27 , 2017; accepted: Mar. 17 , 2017; published: Mar. 20 , 2017 Abstract Anthocyanidin is one of the most important groups of secondary metabolites in plants with prom- inent physiological activity and healthcare function. In this study, distribution of anthocyanidins in blade, petiole and stem in sweetpotato cv. Xuzishu 3 was observed through light microscope. Relative contents of anthocyanidin and free radical scavenging activity were also measured in 20 varieties sweetpotatos. The results indicated that anthocyanidins located mainly in epidermic cells of leaves, epidermic cells and phloem parenchymal cells of petioles and stems, parenchymal cells of piths. The data of anthocyanidins contents revealed that difference existed among the above- ground parts of different cultivar sweetpotatos. This study provided the reliable scientific ma- terial for exploitation of the aboveground parts of sweetpotato. Keywords Aboveground Parts of Sweetpotato, Anthocyanidin Relative Contents, Freehand Section, DPPH