Research reagents-a plant with "metal armor" to resist germs

Research reagents-a plant with a "metal armor" to resist germs. A new British study found that a herbaceous plant will accumulate a lot of metal elements in the leaves to avoid the invasion of germs, just like equipping itself with a layer of "metal armor" . Researchers from the University of Oxford in the United Kingdom reported in a new issue of the "Public Library of Science? Pathogens" that a plant called Blue Cabbage will accumulate high concentrations of zinc, nickel, cadmium and other metal elements in the leaves. It's not clear what it does to accumulate metals. To understand the reason, the researchers cultivated blue cabbage in different metal concentration environments, and experimented with Pseudomonas syringae, which often causes disease in plants such as radishes. The results show that, whether it is zinc, nickel or cadmium, as long as the metal concentration in the cabbage is increased, the degree of pathogen invasion will become smaller. Dr. Gal Preston, who participated in the research, said that this shows that the blue metal is to use the metal elements in the environment to put on a "metal armor" to resist the invasion of pathogens. However, the researchers also found that while containing the "hard shield" of the blue cabbage equipment, some bacteria have evolved a "spear". Some bacteria found in metal mining areas have evolved higher metal tolerance, so it is possible to survive in plants with higher metal concentrations. The researchers say that this is like a "arms race", which continuously occurs in the interactive evolution of the offensive and defensive sides in nature.

Office Furniture

Office furniture refers to various types of furniture used in office spaces, including tables, chairs, cabinets, etc. The classification of office furniture is mainly based on its purpose. The following will provide a detailed introduction to the classification of office furniture.
1. Office Desk: A desk is one of the most basic furniture in the office, used to hold computers, documents, and office supplies. According to different shapes and functions, office desks can be divided into straight, L-shaped, U-shaped, conference tables, etc.
2. Office Chair: Office chairs are essential furniture for employees in the office, used to provide sitting support and comfort. According to different functions and materials, office chairs can be divided into office staff chairs, conference chairs, executive chairs, sofa chairs, etc.
3. Conference tables and chairs: Conference tables and chairs are furniture used for meetings and business negotiations, usually consisting of large tables and comfortable chairs. According to different shapes and functions, conference tables and chairs can be divided into round tables, long tables, oval tables, etc.
4. File cabinet: A file cabinet is furniture used to store and manage files and information, usually consisting of multiple drawers. According to different materials and usage methods, file cabinets can be divided into steel file cabinets, wooden file cabinets, sliding file cabinets, etc.
5. Bookshelf: A bookshelf is furniture used to store books and documents, providing neat and orderly storage space. According to different shapes and materials, bookshelves can be divided into wooden bookshelves, metal bookshelves, glass bookshelves, etc.

Ergonomic Chair,Office Lifting Table,Meeting Sofa,Visitor Chair

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