Featured Research

from universities, journals, and other organizations

New insight into silica deposition in horsetail

Date:
August 1, 2011
Source:
Keele University
Summary:
Researchers in the UK have found that callose initiated silica formation in undersaturated solutions of silicic acid and catalysed silica formation in saturated solutions of silicic acid. The former is the first example of any biomolecule that has been shown to be capable of inducing silica formation in an undersaturated solution of silicic acid.

Recent research by scientists in the Bioinorganic Chemistry Laboratory in the Birchall Centre at Keele University has investigated the deposition of silica in the plant horsetail (Equisetum arvense).

Fluorescence microscopy has revealed ornate silica 'skeletons' of many of horsetail's anatomical structures and, in particular, the stomata are shown to be heavily silicified. The deposition of silica throughout horsetail was compared to the deposition of the carbohydrate callose in other plants including the related fern and it was shown to be identical. Silica deposition in horsetail was shown to mimic the known deposition of callose in other higher plants.

This suggested that callose might template silica deposition in horsetail and other biosilicifiers. To test this hypothesis we added a commercially available form of callose to solutions of silicic acid and determined if silica was formed using both fluorimetry and fluorescence microscopy.

Keele researchers found that callose initiated silica formation in undersaturated solutions of silicic acid and catalysed silica formation in saturated solutions of silicic acid. The former is the first example of any biomolecule which has been shown to be capable of inducing silica formation in an undersaturated solution of silicic acid.

Callose may be the 'missing link' in silica formation in horsetail and all other callose-forming biota including diatoms.


Story Source:

The above story is based on materials provided by Keele University. Note: Materials may be edited for content and length.


Journal Reference:

  1. Chinnoi Law, Christopher Exley. New insight into silica deposition in horsetail (Equisetum arvense). BMC Plant Biology, 2011; 11 (1): 112 DOI: 10.1186/1471-2229-11-112

Cite This Page:

Keele University. "New insight into silica deposition in horsetail." ScienceDaily. ScienceDaily, 1 August 2011. <www.sciencedaily.com/releases/2011/08/110801094556.htm>.
Keele University. (2011, August 1). New insight into silica deposition in horsetail. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2011/08/110801094556.htm
Keele University. "New insight into silica deposition in horsetail." ScienceDaily. www.sciencedaily.com/releases/2011/08/110801094556.htm (accessed July 22, 2014).

Share This




More Earth & Climate News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Shark Sightings a Big Catch for Cape Tourism

Shark Sightings a Big Catch for Cape Tourism

AP (July 21, 2014) A rise in shark sightings along the shores of Chatham, Massachusetts is driving a surge of eager vacationers to the beach town looking to catch a glimpse of a great white. (July 21) Video provided by AP
Powered by NewsLook.com
Spectacular Lightning Storm Hits London

Spectacular Lightning Storm Hits London

AFP (July 19, 2014) A spectaCular lightning storm struck the UK overnight Friday. Images of lightning strikes over the Shard and Tower Bridge in central London. Duration: 00:23 Video provided by AFP
Powered by NewsLook.com
A Centuries' Old British Tradition Is Far from a Swan Song

A Centuries' Old British Tradition Is Far from a Swan Song

AFP (July 19, 2014) As if it weren't enough that the Queen is the Sovereign of the UK and 15 other Commonwealth realms, she is also the owner of all Britain's unmarked swans. Duration: 02:18 Video provided by AFP
Powered by NewsLook.com
Raw: High Winds Push Growing Washington Widlfire

Raw: High Winds Push Growing Washington Widlfire

AP (July 19, 2014) Pushed by howling, erratic winds, a massive wildfire in north-central Washington was growing rapidly and burning in new directions Saturday. (July 19) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins