PDF(Pubmed)
Abstract：
Modern intensive cropping systems often contribute to the accumulation of phenolic acids in the soil, which promotes the development of soilborne diseases. This can be suppressed by intercropping. This study analyzed the effects of intercropping on Fusarium wilt based on its effect on photosynthesis under stress by the combination of Fusarium commune and cinnamic acid. The control was not inoculated with F. commune, while the faba bean plants (Vicia faba L.) were inoculated with this pathogen in the other treatments. The infected plants were also treated with cinnamic acid. This study examined the development of Fusarium wilt together with its effects on the leaves, absorption of nutrients, chlorophyll fluorescence parameters, contents of photosynthetic pigments, activities of photosynthetic enzymes, gas exchange parameters, and the photosynthetic assimilates of faba bean from monocropping and intercropping systems. Under monocropping conditions, the leaves of the plants inoculated with F. commune grew significantly less, and there was enhanced occurrence of the Fusarium wilt compared with the control. Compared with the plants solely inoculated with F. commune, the exogenous addition of cinnamic acid to the infected plants significantly further reduced the growth of faba bean leaves and increased the occurrence of Fusarium wilt. A comparison of the combination of F. commune and cinnamic acid in intercropped wheat and faba bean compared with monocropping showed that intercropping improved the absorption of nutrients, increased photosynthetic pigments and its contents, electron transport, photosynthetic enzymes, and photosynthetic assimilates. The combination of these factors reduced the occurrence of Fusarium wilt in faba bean and increased the growth of its leaves. These results showed that intercropping improved the photosynthesis, which promoted the growth of faba bean, thus, reducing the development of Fusarium wilt following the stress of infection by F. commune and cinnamic acid. This research should provide more information to enhance sustainable agriculture.
摘要：
现代集约化种植系统通常有助于土壤中酚酸的积累，这促进了土壤传播疾病的发展。这可以通过间作来抑制。本研究根据镰刀菌和肉桂酸组合对胁迫下枯萎病光合作用的影响，分析了间作对枯萎病的影响。对照组没有接种F公社，而蚕豆植物（蚕豆）在其他处理中接种了这种病原体。感染的植物也用肉桂酸处理。这项研究检查了枯萎病的发展及其对叶片的影响，吸收营养，叶绿素荧光参数,光合色素的含量，光合酶的活性，气体交换参数，以及蚕豆从单作和间作系统中的光合同化物。在单一裁剪条件下，接种F.公社的植物的叶子生长明显减少，与对照相比，枯萎病的发生增加。与仅接种F.commune的植物相比，在受感染的植物中外源添加肉桂酸显着进一步降低了蚕豆叶片的生长，并增加了枯萎病的发生。间作小麦和蚕豆中F.commune和肉桂酸的组合与单作比较表明，间作提高了养分的吸收，增加光合色素及其含量，电子传输,光合酶，和光合同化物。这些因素的组合减少了蚕豆枯萎病的发生，并增加了其叶片的生长。这些结果表明，间作提高了光合作用，促进了蚕豆的生长，因此，减少F.commune和肉桂酸感染胁迫后枯萎病的发展。这项研究应该提供更多的信息，以加强可持续农业。
