User Tools

    To create and edit articles, please register and log-in

Main Menu : categories & index etc.

Main menu
Click categories to expand

A-Z listingplugin-autotooltip__plain plugin-autotooltip_bigA-Z listing

This is an alphabetical index of all content pages.

Other categories



Also see

Importance Ratings
Curator's rationale
AI Policy

Twitter feed 𝕏

Feeds + s.e.o. etc.
rss / xml feed
sitemap file
A-Z listing (archived)

Indexed under : Life Sciences / Botany

Wikenigma - an Encyclopedia of Unknowns Wikenigma - an Encyclopedia of the Unknown


Plasmodesmata are controllable openings in plant cell walls which allow chemicals and small molecules to pass in both directions from a cell to its neighbours.

Every plant so far examined has plasmodesmata, suggesting that they must be crucial cellular components. It's known that they can operate in groups - opening up, or closing off, fluid-exchanging 'domains' within the plant.

But despite more than 100 years of research, the fundamental reasons why plasmodesmata open and close, how this controls cell-to-cell chemical 'traffic' are unknown.

Recent data suggests that plasmodesmata are tightly controlled during development and in response to environmental changes. There is increasing evidence that this regulation is controlled by proteins that have specific plasmodesmata-associated functions in stimulus perception and signalling. In addition, many viruses exploit plasmodesmata for cell-to-cell spread during infection and their encoded viral movement proteins manipulate the pores to facilitate this process.“

Source : eLS (paywalled)(formerly known as the Encyclopedia of Life Sciences)

Importance Rating

    Please share this page to help promote Wikenigma !

Dear reader : Do you have any suggestions for the site's content?

Ideas for new topics, and suggested additions / corrections for older ones, are always welcome.

If you have skills or interests in a particular field, and have suggestions for Wikenigma, get in touch !

Or, if you'd like to become a regular contributor . . . request a login password. Registered users can edit the entire content of the site, and also create new pages.

( The 'Notes for contributors' section in the main menu has further information and guidelines etc.)

Automatic Translation

You are currently viewing an auto-translated version of Wikenigma

Please be aware that no automatic translation engines are 100% accurate, and so the auto-translated content will very probably feature errors and omissions.

Nevertheless, Wikenigma hopes that the translated content will help to attract a wider global audience.

Show another (random) article

Further resources :