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作者	单位
胡青平，卫红萍，高红，杨晓月，申瑜，秦燕，田呈瑞	（1.陕西师范大学食品工程学院，陕西西安 710062； 2.山西师范大学生命科学学院，山西临汾 041004）

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中文摘要:

为给光合细菌（PSB）的开发应用提供理论依据，用不同浓度的PSB B菌液对临丰3号小麦种子做浸种处理，研究其对小麦种子萌发的影响。结果表明，100倍PSB B菌稀释液可提高种子的发芽率，而原菌液有抑制作用。在萌发后期，PSB B菌液处理组的小麦种子芽长均高于对照组（P＜0.05），其中稀释10倍PSB处理组的芽长达到了14.2 cm。适当浓度的PSB B处理会提高小麦萌发过程中可溶性蛋白和还原性糖含量（P＜0.05），并对细胞膜具有一定的保护和修复作用。说明PSB B可通过改善小麦种子的生理生化代谢，促进其萌发。

英文摘要:

To survey the influence of soaking weeds with Photosynthetic bacteria B on germination of wheat seed,seeds of wheat Linfeng 3 were soaked in different concentrations of PSB B solutions. The results showed that: 100 fold dilution of PSB B could increase the germination rate,however,the original bacterium solution decreased the germination rate; the shoots of wheat seeds treated with PSB B bacilli were higher than that of control group at mid late germination stages（P＜0.05）. The mean shoot length of wheat seeds treated by 10 fold dilution of PSB B was 14.2 cm. Appropriate PSB B treatment would increase the contents of soluble proteins and reductive carbohydrates during the germination of wheat seeds（P＜0.05）, which might play some roles in protecting and repairing the cell membrane. It was suggested that PSB could improve the physiological and biochemical metabolism of wheat seeds and promote germination.

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