Biochemical and morphological characterization of potato clones differing in their resistance to late blight

被引：0

作者：

D. Evers

N. Welschbillig

J. Dommes

J. F. Hausman

机构：

[1] CRP-Gabriel Lippmann, CREBS, L-4422 Belvaux, 41, rue du Brill

[2] University of Liège, Laboratory of Plant Molecular Biology, B-22, Sart Tilman

来源：

Potato Research | 2003年 / 46卷 / 3-4期

关键词：

Histology; Isoperoxidases; Lignin; Phytophthora infestans; Potato; Solanum phureja; Solanum tuberosum;

D O I：

10.1007/BF02736080

中图分类号：

学科分类号：

摘要：

Morphological and biochemical parameters that could be involved in resistance to late blight were studied in non-infected and in infected potato hybrids resulting from a cross between Solanum phureja, resistant to Phytophthora infestans, and a susceptible Solanum tuberosum. Some morphological differences between resistant and susceptible hybrids, indicating a positive correlation between stem diameter and phloem thickness in the stem and resistance to P. infestans, were observed. The lignin content in the leaves of the resistant hybrid rose upon infection by P. infestans. In the leaves of the susceptible hybrid, a diminution of the lignin content could be observed upon infection by P. infestans. In the same context, peroxidasic activity raised upon infection by P. infestans in both resistant and susceptible hybrids. Further characterization of the hybrid clones based on the polymorphism of peroxidases was attempted using isoelectric focusing.

引用

页码：105 / 115

页数：10

共 24 条

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