Scientists are using genetic engineering, method for creating new forms of plants faster than by traditional selection, techniques without modifying the main agronomic characteristics of basic strains. In molecular selection the desired characters are obtained by insertion of individual sense genes into the plant genome. For example, plants resistant to diseases caused by phytopathogens (bacteria and fungi) are thus evolved. Another trend is in improving the taste qualities. These two problems can be solved simultaneously now and then. стр. 34 Tertiary structure of the thaumatin protein molecule in two projections: A) frontal; B) lateral. Numerous proteins protect plants from diseases caused by phytopathogens (bacteria and fungi). Biologists have classified these proteins: by now about 10 groups are known, for example, the family of pathogenesis-related proteins (PR-5). It unites substances initially isolated from the West African thaumatococcus (Thaumatococcus danielli) and the common maize (Zea mays) and called by the Latin names of these plants: thaumatin-zeamatin-like substances. These substances were found to be widespread and in this or that form, present in virtually all plants, accounting for their resistance to phytopathogenic fungi, together with chitinase (chitin-destroying enzyme; chitin is present in the fungal mycelium). Thaumatin is formed in the thaumatococcus by the time of fruit maturation. Spontaneous mutation of the gene coding for this protein must have developed in the course of evolution. As a result of this mutation the peripheral part of the protein molecule was modified, primarily with respect to the spatial location of lysine residues. Thaumatococcus fruit became very sweet and tasty for chimpanzees and gorillas. These primates started consuming this fruit and spreading its seeds, thus contributing to the evolutionary fixation of its character. It is noteworthy that only higher primates can perceive the sweet taste of thaumatin, due ... Read more

Эта публикация была размещена на Либмонстре в другой стране и показалась интересной редакторам.

Полная версия:
Moldova Online · 1643 days ago 0 146
Professional Authors' Comments:
Order by: 
Per page: 
  • There are no comments yet
Guest comments

Who Like this
Likes · Dislikes
0 votes
Moldova Online
Кишинев, Moldova
27.09.2018 (1643 days ago)
Permanent link to this publication:


Libmonster, International Network:

Actual publications:

Libmonster Partners

Actual publications:


Latest BOOKS:

Actual publications:

LIBRARY.MD is a Moldavian open digital library, repository of author's heritage and archive

Register & start to create your original collection of articles, books, research, biographies, photographs, files. It's convenient and free. Click here to register as an author. Share with the world your works!

Watch out for new publications: News only: Chat for Authors:

About · News · For Advertisers · Donate to Libmonster

Library of Moldova ® All rights reserved.
2016-2023, LIBRARY.MD is a part of Libmonster, international library network (open map)
Keeping the heritage of Moldova


US-Great Britain Sweden Serbia
Russia Belarus Ukraine Kazakhstan Moldova Tajikistan Estonia Russia-2 Belarus-2

Create and store your author's collection at Libmonster: articles, books, studies. Libmonster will spread your heritage all over the world (through a network of branches, partner libraries, search engines, social networks). You will be able to share a link to your profile with colleagues, students, readers and other interested parties, in order to acquaint them with your copyright heritage. After registration at your disposal - more than 100 tools for creating your own author's collection. It is free: it was, it is and always will be.

Download app for smartphones