网站首页  英汉词典

请输入您要查询的英文单词:

 

单词 Root Nodules
释义

Root Nodules

英语例句库

Bacteroid A modified bacterial cell in a root nodule, typically a cell of the bacterium Rhizobium in the root nudule of a leguminous plant (family Fabaceae).

在根瘤中经过修饰的细菌细胞,比较典型的是在豆科植物根瘤中的根瘤菌(蝶形花科)。

英语百科

Root nodule

Cross section though a soybean (Glycine max 'Essex') root nodule. The bacterium, Bradyrhizobium japonicum, colonizes the roots and establishes a nitrogen fixing symbiosis. This high magnification image shows part of a cell with single bacteroids within their symbiosomes. In this image, endoplasmic reticulum, dictysome and cell wall can be seen.
A sectioned alder tree root nodule.
Indeterminate nodules growing on the roots of Medicago italica
Diagram illustrating the different zones of an indeterminate root nodule (see text).

Root nodules occur on the roots of plants (primarily Fabaceae) that associate with symbiotic nitrogen-fixing bacteria. Under nitrogen-limiting conditions, capable plants form a symbiotic relationship with a host-specific strain of bacteria known as rhizobia. This process has evolved multiple times within the Fabaceae, as well as in other species found within the Rosid clade. The Fabaceae include legume crops such as beans and peas.

随便看

 

英汉网英语在线翻译词典收录了3779314条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2024 encnc.com All Rights Reserved
更新时间:2025/6/18 12:42:21