盐地碱蓬甜菜红素苷的鉴定及环境因素对其积累的影响(英文)  

Identification of Betacyanin and Effects of Environmental Factors on Its Accumulation in Halophyte Suaeda salsa

作　　者：王长泉[1,2] 赵吉强[2] 陈敏[1] 王宝山[1] 

机构地区：[1]山东师范大学生命科学学院,济南250014 [2]山东理工大学生命科学学院

出　　处：《植物生理与分子生物学学报》2006年第2期195-201,共7页Journal Of Plant Physiology and Molecular Biology

基　　金：国家教育部高等学校博士学科点专项科研基金(No.20050445003);山东省自然科学基金重点项目(No.Z2004D03);山东理工大学科研基金资助。~~

摘　　要：以C3盐生植物盐地碱蓬(Suaedasalsa)为材料研究了体内红色素的理化性质、随发育时期的变化及光照、温度、盐分对红色素积累的影响。结果表明:该红色素溶于水而不溶于有机溶剂,光抑制其积累,在酸性条件下稳定,为红色,在碱性条件下不稳定,为黄色,最大吸收峰为 538nm。根据这些特性,初步确定该类红色素为甜菜红素苷(betacyanin)。黑暗、低温、高盐环境有利于盐地碱蓬甜菜红素苷的积累,其中萌发期黑暗是诱导甜菜红素苷积累的重要因子。Effects of temperature, light, salinity and developmental phases on the accumulation of red pigments in the C3 halophyte Suaeda salsa were studied, and the physical and chemical characteristics of the red pigments were also analyzed. The results indicate that： these red pigments are insoluble in organic solvents but free in water, the pigments are red-violet and stable under acidic condition while yellow and unstable under alkaline condition, and they absorb the highest value at wavelength near 538 nm, light suppresses their accumulation and enhances their decomposition. These results suggest that these red pigments are betacyanins. Darkness, low temperatures and high salinity enhance betacyanin accumulation in Suaeda salsa, and darkness in the germina- tion phase is one of the most important environmental factors for the betacyanin accumulation.

关 键 词：盐地碱蓬 甜菜红素苷 鉴定 环境因子 

分 类 号：Q946[生物学—植物学] Q948