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首页> 外文期刊>Acta Physiologiae Plantarum >Relationship between quantum efficiency of PSII and cold-induced plant resistance to fungal pathogens
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Relationship between quantum efficiency of PSII and cold-induced plant resistance to fungal pathogens

机译：PSII量子效率与冷诱导植物对真菌病原体抗性的关系

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摘要

The aim of the presented work was to study whether the efficiency of photosynthesis may influence resistance of hardened plants to disease. Seedlings of spring barley, meadow fescue and winter oilseed rape were chilled at 5 °C for 2, 4 or 6 weeks and at these deadlines the changes in cell membrane permeability (expressed as electrolyte leakage), chlorophyll fluorescence (initial fluorescence - F0, maximal fluorescence - Fm, quantum yield of PSII - Fv/Fm) and net photosynthesis rate (FN) were measured. Also, the influence of cold on the degree of plant resistance to economically important pathogens -Bipolaris sorokiniana or Phoma lingam was estimated. Two, four or six week-hardened plants were artificially infected: barley and fescue by B. sorokiniana, and oilseed rape by P. lingam.
机译：提出的工作的目的是研究光合作用的效率是否会影响硬化植物对疾病的抵抗力。将春季大麦，草甸羊茅和冬季油菜的幼苗在5°C下冷藏2、4或6周，并在这些截止日期之前改变细胞膜通透性（表示为电解质渗漏），叶绿素荧光（初始荧光-F0 ，PSII的量子产率-Fv / Fm ）和净光合速​​率（FN ）。此外，估计了寒冷对植物对经济上重要的病原体-Bipolaris sorokiniana或Phoma lingam的抵抗程度的影响。人工感染了两，四或六周硬化的植物：B。sorokiniana感染了大麦和羊茅，P。lingam感染了油菜。

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