Subjects: Biology >> Botany >> Applied botany submitted time 2018-10-26 Cooperative journals: 《广西植物》
Abstract： The pot experiment was conducted to evaluate the effect of volatile oil from an invasive plant, Chenopodium ambrosioides L. and its two main components α -terpene and cymene on the photosynthetic characteristics of Vicia faba Seedling. The results showed the volatile oil treatment significantly reduced the net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr), maximum photochemical efficiency (Fv/Fm), actual photochemical efficiency (ΦPsⅡ) and total chlorophyll content. However, it increased the concentration of intercellular CO2, which was the dual effect of dose and time, and the effect of high dosed volatile oil treatment was irreversible. Compared with the control group, α–terpene treatment reduced Pn, Fv/Fm and ΦPsⅡ, and increased Ci, Gs and Tr, and all the parameters were gradually approaching to the control level after stopping treatment. The effect of cymene on photosynthetic characteristics of V. faba Seedling were not significant. These results suggested that the volatile allelochemical stress from C. ambrosioides on photosynthesis of receptor plant was due to the the synergistic effect of many allelochemicals, instead of a single component.
Subjects: Biology >> Zoology submitted time 2017-10-10 Cooperative journals: 《动物营养学报》
Abstract：乳源生物活性肽（MDBPs）是指乳汁中存在的参与机体多种代谢途径和生理环节，具有特殊氨基酸排列和空间结构的相对较短的小分子肽段。近年的研究发现MDBPs能影响动物肠道黏膜营养物质吸收、减缓肠道氧化应激、改善肠道微生态环境以及提高肠道免疫力。本文将围绕MDBPs对动物肠道功能的影响及作用机制进行综述。
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