The role of sugar signaling in plant defense responses against fungal pathogens

被引:258
作者
Morkunas, Iwona [1 ]
Ratajczak, Lech [2 ]
机构
[1] Poznan Univ Life Sci, Fac Hort & Landscape Architecture, Dept Plant Physiol, PL-60637 Poznan, Poland
[2] Adam Mickiewicz Univ, Fac Biol, Dept Plant Physiol, PL-61614 Poznan, Poland
关键词
Sugar signaling; Plant immune system; Fungal pathogens; Plant defense responses; Abiotic stress; CELL-WALL INVERTASE; LUPINE EMBRYO AXES; FUSARIUM-OXYSPORUM; GENE-EXPRESSION; YELLOW LUPINE; MESEMBRYANTHEMUM-CRYSTALLINUM; NITROGEN-FERTILIZATION; ARABIDOPSIS-THALIANA; MICROBE INTERACTIONS; TRANSCRIPTION FACTOR;
D O I
10.1007/s11738-014-1559-z
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
In most fungal pathogen-plant systems, a high level of sugars in plant tissues enhances plant resistance. Several hypotheses have been proposed to explain the mechanisms of "high-sugar resistance". Sugars constitute the primary substrate providing energy and structural material for defense responses in plants, while they may also act as signal molecules interacting with the hormonal signaling network regulating the plant immune system. Sugars enhance oxidative burst at early stages of infection, increasing lignification of cell walls, stimulate the synthesis of flavonoids and induce certain PR proteins. Some sugars act as priming agents inducing higher plant resistance to pathogens.
引用
收藏
页码:1607 / 1619
页数:13
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