期刊
FIELD CROPS RESEARCH
卷 116, 期 1-2, 页码 147-153出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fcr.2009.12.005
关键词
Biological cycle; Cynara cardunculus; Inulin; Roots; Water-soluble sugars
类别
Cynara cardunculus accumulates inulin in large amounts in roots. Some representative types of cardoons and globe artichoke were genetically screened to select genotypes suitable for total sugar and inulin production in the Mediterranean environment. Seasonal dynamics of biomass, inulin, and water-soluble carbohydrate (W.S.C.) in roots of three taxa of C cardunculus L. were studied for 2 years, in order to investigate a possible relationship between the physiological state of the plant and the distribution of carbohydrates in roots. Globe artichoke, Cultivated cardoon, and wild cardoon were grown in Sicily. Whole biomass was collected monthly. Dry matter partitioning and characterization of root sugars, performed by high-performance anion exchange chromatography (HPAEC), were studied for each. Changes in W.S.C, well correlated with the conditions of growth. In particular, W.S.C. content increased when the plants used their root reserves to overcome cold stress in winter and during formation of stalks and capitula. Maximum inulin content with high degree of polymerization was recorded before the beginning of flower formation. The cardoons and globe artichoke differed in their inulin patterns. Storing fructans in underground organs could be interpreted as an adaptive strategy of C. cardunculus to overcome Unfavourable conditions in the Mediterranean region. The three taxa showed different patterns of biomass accumulation and partitioning, reflected in accumulation of inulin and/or its breakdown in roots. (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据