Home / Knowledge / News / Textiles / Silk worms produce more than one type of silk
Silk worms produce more than one type of silk
10
Sep '09
Lacewing eggs on the end of their rigid silk stalks.
Lacewing eggs on the end of their rigid silk stalks.
Not only do different insects produce different silks but individual species can produce more than one type of silk.

CSIRO scientists have just revealed their findings on the rare and fascinating silk that lacewings use to make their egg stalks – a cross-beta silk.

“We have identified and sequenced the genes for the egg stalk silk of adult females of a common Australian green lacewing, Mallada signata,” CSIRO Entomology's Dr Tara Sutherland said.“We found that the lacewing egg stalk silk contains two fibrous proteins which are folded up like panels in a concertina door.

“The silk in the egg stalk is produced as a liquid and dries in few seconds in air. It is very strong with a high lateral stiffness - nearly three times that of silkworm silk – and remarkable elasticity.” A female lacewing produces the silk as a drop of liquid which she then draws out. The thread hardens in a few seconds and the female then lays an egg on its tip, protecting the egg against predators.

Dr Sutherland said this is another fascinating insight into the world of biological silks. Scientists have long sought to produce artificial insect silks. Understanding this lacewing silk brings them closer to achieving their goal.

The lacewing's silk is produced as a liquid which rapidly solidifies in air, making it easier to produce than through the complex systems of moths and spiders. Dr Sutherland said that silk production is a multi-step process which involves making the proteins and then fabricating these into the physical structure of silk.

While the silk proteins from bee and ant silks are easier to produce chemically, it is the much simpler way lacewings fabricate their silk that has caught the scientists' interest. This lacewing is also a very effective biocontrol agent as its larvae consume, amongst other things, aphids, mealybugs and mites.

The Grains Research and Development Corporation provided support for the silk research.

CSIRO


Must ReadView All

Apparel/Garments | On 26th Sep 2017

US raises annual AGOA quota for textiles

The US Committee for the Implementation of Textile Agreements has...

Textiles | On 26th Sep 2017

Gujarat hopes extended textile policy to attract Rs 5000 cr

The Gujarat government feels that its recent decision to extend its...

Apparel/Garments | On 26th Sep 2017

Cash burn by e-tailers in India may double during festivals

During this year’s festival season, which has already started,...

Interviews View All

Akash Khetan
Narayan Tex Fab

I find it hard to find professionals in Surat

Smith Vaghasia
Sanado India

Online remains the best destination for shopping

Priyanka
Studio Priyanka Rajiv

‘To reinvent the age-old tradition of embroidery to suit demographics and...

Steve Cole
Xerium Technologies

Steve Cole of Xerium Technologies discusses the industry. Xerium is the...

Marten Alkhagen
Swerea IVF AB

Marten Alkhagen, Senior Scientist - Nonwoven and Technical Textiles of...

Eamonn Tighe
Nature Works LLC

Eamonn Tighe, Fibres and Nonwovens - Business Development Manager of...

Jay Ramrakhiani
Occasions Elegance Wear

It is believed that by early 19th century, Varanasi weavers had moved away ...

Mike Hoffman
Gildan Activewear SRL

Gildan Activewear, a manufacturer and marketer of branded clothing and...

Igor Chapurin
Chapurin

"Now we can see the Russian trend in international fashion. And Russian...

Press Release

Press Release

Letter to Editor

Letter to Editor

RSS Feed

RSS Feed

Submit your press release on


editorial@fibre2fashion.com

Letter To Editor






(Max. 8000 char.)

Search Companies





SEARCH

September 2017

Subscribe today and get the latest update on Textiles, Fashion, Apparel and so on.

news category


Related Categories:

Planning to Take the Leap towards
Sustainability?

Do you see sustainability as a route to business growth?

Yes No

Do you think the sustainability space has the needed tools and resources available for a business to lead change?

Yes No

Active Poll

Do you see sustainability as a route to business growth?

Yes
75.0%
No
12.5%
Skip
12.5%

Total Votes: 48

Do you think adopting a sustainable approach will be a profitable move for your business?

Yes No

Active Poll

Do you think the sustainability space has the needed tools and resources available for a business to lead change?

Yes
62.5%
No
25.0%
Skip
12.5%

Total Votes: 48

Do you want the world to know about your sustainability journey and your business’ environmental footprint?

Yes No

Active Poll

Do you think adopting a sustainable approach will be a profitable move for your business?

Yes
87.5%
No
6.3%
Skip
6.3%

Total Votes: 48

Thanks for your valuable feedback. Claim your free latest sustainability e-book.

Active Poll

Do you want the world to know about your sustainability journey and your business’ environmental footprint?

Yes
70.8%
No
10.4%
Skip
18.8%

Total Votes: 48


E-News Insight
Subscribe Today and Get the
Latest News Update in Your Mail Box.
Advanced Search