An S-like ribonuclease gene is used to generate a trap-leaf enzyme in the carnivorous plant Drosera adelae
An S-like ribonuclease gene is used to generate a trap-leaf enzyme in the carnivorous plant Drosera adelae
复制标题
DOI：
10.1016/j.febslet.2005.09.043
复制
发表时间：
2005-10-24
期刊：
影响因子：
3.5
通讯作者：
Ohyama, T
中科院分区：
文献类型：
--
作者：
Okabe, T;Iwakiri, Y;Ohyama, T
食肉植物通常生长在营养缺乏的环境中，因此它们部分依赖昆虫提供氨基酸和核苷酸合成所需的氮和磷酸盐。我们报告说，粘性消化液从茅膏菜，毛毡苔，含有大量的S-样核糖核酸酶（RNase），显示出高氨基酸序列相似性的S-样RNases诱导的磷酸盐饥饿或受伤的正常植物。通过给叶子一层RNase“外衣”，D.为了适应特定的环境，蚜虫似乎同时满足了两个要求：一是从昆虫那里获得磷酸盐，二是抵御病原体的攻击。(c)2005年欧洲生物化学学会联合会。Elsevier B. V.出版，保留所有权利。
Carnivorous plants usually grow in nutrient-deficient habitats, and thus they partly depend on insects for nitrogen and phosphate needed for amino acid and nucleotide synthesis. We report that a sticky digestive liquid from a sundew, Drosera adelae, contains an abundant amount of an S-like ribonuclease (RNase) that shows high amino acid-sequence similarity to S-like RNases induced by phosphate starvation or wounding in normal plants. By giving leaves an RNase "coat", D. adelae seems to achieve two requirements simultaneously to adapt itself to its specific surroundings: it obtains phosphates from insects, and defends itself against pathogen attack. (c) 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.