酚类物质是重要的植物次生代谢物质之一。
Phenols are one of the important secondary metabolism products of plants.
牛蒡自身含多种次生代谢物质，病虫害很少侵染，是较好的药食同源植物。
Burdock contains many bioactive substances and secondary metabolites, it hardly infected with pathogen.
次生代谢物质含量随紫外线和光强度而变化，从而保护植物免受强辐射的伤害。
The secondary metabolites contents changed with the intensity of ultraviolet radiation and light, which protected the plants from strong radiation.
棉花纤维细胞含有高的棉酚、多糖和次生代谢物质，对其RNA的提取造成困难。
The cotton fiber cells contain a lot of endogenous phenolics, polysaccharides and secondary metabolites that may result in difficulty of RNA isolation from fiber cells.
韧皮部中主要次生代谢物质含量差异显著，木质部中单宁和黄酮的含量存在显著差异。
The secondary metabolites in the phloem of 6 poplar strains were also significantly different and tannin and flavone contents in the xylem showed significantly difference.
为了有效调控这一重要的次生代谢物质，学者们长期致力于棉酚及其储藏器官—色素腺体的研究。
In order to control this secondary metabolism substance effectively, People have been engaged in the studies of gossypol and its storage organ-pigment gland for a long time.
目前已知的防御化合物主要包括植物次生代谢物质、昆虫消化酶(蛋白)抑制剂、蛋白酶、凝集素、氨基酸脱氨酶和氧化酶。
Major known defense chemicals include plant secondary metabolites, protein inhibitors of insect digestive enzymes, proteases, lectins, amino acid deaminases and oxidases.
给予植物抗虫性的物质包括无机物，初始、中间代谢物和次生物质。
Substances conveying plant resistance to insects include inorganics, primary and intermediary metabolites and secondary substances.
控制实验与植物化学分析结果表明水稻挥发性物质和其它一些次生代谢物影响稻飞虱的寄主选择。
The results of control tests and phytochemistry analysis show that volatiles and allelochemicals affect host selection behavior of Nilaparvata lugens.
控制实验与植物化学分析结果表明水稻挥发性物质和其它一些次生代谢物影响稻飞虱的寄主选择。
The results of control tests and phytochemistry analysis show that volatiles and allelochemicals affect host selection behavior of Nilaparvata lugens.
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