Spraying sugars, growth temperatures and N application levels change epiphytic lactic acid bacteria composition on Italian ryegrass
文献类型： 外文期刊
作者： Chen, Xinzhu 1 ; Dong, Zhaoxia 1 ; Zhang, Jianguo 1 ;
作者机构： 1.South China Agr Univ, Dept Grassland Sci, Guangzhou 510642, Peoples R China
2.Fujian Acad Agr Sci, Inst Anim Husb & Vet Med, Fuzhou, Peoples R China
3.Fujian Xinminke Biol Sci & Technol Dev Co Ltd, Fuzhou, Peoples R China
关键词： Italian ryegrass; lactic acid bacteria; nitrogen; sugar; temperature
期刊名称：GRASSLAND SCIENCE （ 影响因子：1.65； 五年影响因子：1.569 ）
ISSN： 1744-6961
年卷期：
页码：
收录情况： SCI
摘要： Lactic acid bacteria (LAB) naturally present on forage crops are responsible for the silage fermentation quality. However, there are few reports on the factors affecting the distribution of epiphytic LAB on the crops. Therefore, the influences of spraying sugars, growth temperatures and nitrogen application levels on the amounts and species of LAB on Italian ryegrass (Lolium multiflorum) were evaluated in this study. Spraying xylose, fructose, glucose, sucrose and galactose significantly increased (p < 0.05) the population sizes and species of LAB on Italian ryegrass. Spraying sucrose made Italian ryegrass epiphyte the most LAB. As for the effect of temperatures, Leuconostoc mesenteroides dominated on Italian ryegrass grown at 10 and 15 degrees C, while Lactobacillus plantarum dominated at 20 degrees C, and Weissella paramesenteroides dominated at 25 degrees. The population sizes and species of LAB on Italian ryegrass were the most at 15 degrees C. When N (0, 35, 70, 105, 140 or 175 kg/ha) was applied to Italian ryegrass, LAB population sizes and species were the most at N 35 kg/ha (p < 0.05). Lactobacillus plantarum was detected in all the treatments of Italian ryegrass except the growth temperatures of 10 and 25 degrees C.
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