Navigation Links
The secret behind silkworm's hardy stomachs
Date:5/27/2008

Silkworms have a unique ability to eat toxic mulberry leaves without feeling ill, and researchers have come one step closer to understanding why: silkworms contain a special digestive enzyme that is not affected by mulberrys toxic chemicals.

Mulberry leaves contain an extremely high amount of alkaloids that inhibit enzymes that break down sucrose (sugar), and thus are potentially quite toxic. However, one type of sucrase called beta-fructofuranosidase is not affected by these alkaloids.

Until now, this enzyme has not been found in any animals, but Toru Shimada and colleagues believed this might explain the silkworms unique diet.

The researchers scanned the silkworm genome and discovered two fructofuranosidase genes, although only one was actually expressed in the worm. This gene (BmSuc1) was, as expected, concentrated in the worms gut, although surprisingly was also prevalent in the silk gland. When they isolated the enzyme from silkworms, the researchers found it could effectively digest sucrose.

Shimada and colleagues note that further work is needed to determine if this special enzyme is the sole reason for silkworms resistance to mulberry toxins. Its possible that fructofuranosidases may turn up in other insects that cannot eat mulberry leaves, indicating additional factors are at work.


'/>"/>

Contact: Nick Zagorski
nzagorski@asbmb.org
301-634-7366
American Society for Biochemistry and Molecular Biology
Source:Eurekalert  

Page: 1

Related biology news :

1. Scientists discover important beauty secret for balanced skin color and tone
2. MIT unraveling secrets of red tide
3. Scientists eye secrets of retinal regeneration
4. NMR researchers unlock hydrogens secrets to spot polymorphism in pharmaceuticals
5. Scientists gather in New Zealand to share oceans secrets
6. New study uncovers secrets behind butterfly wing patterns
7. The key to unlocking the secret of highly specific DNAzyme catalysis
8. Eat chocolate, drink wine, add fun to life: SLU geriatrician shares secrets of staying young
9. Ripening secrets of the vine revealed
10. New research to decode the genetic secrets of prolific potato pest
11. Research reveals secrets of alcohols effect on brain cells
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The secret behind silkworm's hardy stomachs
(Date:7/30/2014)... Laboratory has received a pledge of $1 million from ... the Laboratory,s new Neurobehavioral Biometry Center. , ... will enable the Laboratory to develop a greater breadth ... ultimate goal of accelerating the pace of research to ... as a premier resource for the Laboratory and its ...
(Date:7/30/2014)... HIV infection could be as simple as inserting a ... University of Washington bioengineers have discovered a potentially faster ... from contracting HIV. Their method spins the drug into ... moisture, releasing higher doses of the drug than possible ... , "This could offer women a potentially more effective, ...
(Date:7/30/2014)... , July 30, 2014 NexID ... and liveness detection solutions for the biometric authentication ... industry consortium revolutionizing online authentication with standards for ... Cornett , "The decision to join FIDO Alliance ... authentication pervasive in use. We believe the FIDO ...
Breaking Biology News(10 mins):Rossi Foundation pledges $1M for JAX neurobehavioral research center 2Dissolvable fabric loaded with medicine might offer faster protection against HIV 2Dissolvable fabric loaded with medicine might offer faster protection against HIV 3NexID Biometrics Joins the FIDO Alliance 2
... another reason why you should listen to your mother ... a chemical present at high levels in a precursor ... etc.), helps prevent the severe blistering and skin breakage ... disease epidermolysis bullosa simplex (EBS). The researchers treated ...
... Colorado at Boulder team excavating an ancient Maya village in ... has discovered an ancient field of manioc, the first evidence ... The manioc field was discovered under roughly 10 feet ... been directing the excavation of the ancient village of Ceren ...
... Researchers from Boston University School of Medicine (BUSM) ... HIV disease progression in HIV-infected persons. The study ... Journal of Acquired Immune Deficiency Syndromes., Alcohol use ... on HIV disease progression has been examined in ...
Cached Biology News:Natural chemical found in broccoli helps combat skin blistering disease 2CU-Boulder team discovers first ancient manioc fields in Americas 2CU-Boulder team discovers first ancient manioc fields in Americas 3Study shows link between alcohol consumption and hiv disease progression 2
(Date:7/30/2014)... 2014 A study presented at the ... efficacy of CSL Behring,s C1 Inhibitor (C1-INH) concentrate ... highly sensitized patients. C1-INH is a human protein ... The study shows that post-transplant treatment ... levels of complement components 3 and 4, suggesting ...
(Date:7/30/2014)... AZ (PRWEB) July 30, 2014 Sales ... the launch of blended sales training programs for companies ... sales training programs used by thousands of salespeople over ... blended sales training program can be customized to address ... , The blended sales training program consists ...
(Date:7/30/2014)... PA (PRWEB) July 30, 2014 Vycom ... family of products, designed to meet Factory Mutual (FM) ... equipment materials such as wet benches, process tools, fume ... worker safety and damage to semiconductor wafers used in ... provides a flame-retardant PVC solution with excellent workability and ...
(Date:7/30/2014)... July 30, 2014   Epic Sciences, Inc. ... novel diagnostics to personalize and advance the treatment and ... Gregory T. Lucier as chairman of Epic,s board ... of Life Technologies (formerly Invitrogen). Mr. Lucier joins Epic,s ... its circulating rare cell analysis platform with special focus ...
Breaking Biology Technology:Study Suggests C1-INH May Aid in Prevention of Antibody-Mediated Rejection Following Kidney Transplant 2Study Suggests C1-INH May Aid in Prevention of Antibody-Mediated Rejection Following Kidney Transplant 3Sales Horizons Launches New Blended Sales Training Programs to Companies Engaged in Complex B2B Sales 2Sales Horizons Launches New Blended Sales Training Programs to Companies Engaged in Complex B2B Sales 3Vycom Announces Flametec® Thermax PVC (FM4910 Listed) For a Variety of Clean Room Applications with Excellent Workability and Aesthetics 2Epic Sciences Appoints Greg Lucier as Chairman of the Board of Directors 2Epic Sciences Appoints Greg Lucier as Chairman of the Board of Directors 3
... Florida researcher may have found a defense against the Black ... population in the Middle Ages and which government agencies perceive ... Daniell and his team have developed a vaccine that early ... his National Institutes of Health and USDA funded research appear ...
... September 2, 2008 -- A new interactive web lesson ... are developed. The lesson, developed by William E. Dyer, ... the Journal of Natural Resources and Life Sciences ... , Surprisingly, almost all of the herbicides on the ...
... BioInformatics, LLC,( http://www.gene2drug.com ), the leading market ... industry, announces the publication of its latest,report, ... and,Biologists." A joint effort between BioInformatics, LLC ... designed to help suppliers of protein,research tools ...
Cached Biology Technology:UCF professor develops vaccine to protect against black plague bioterror attack 2UCF professor develops vaccine to protect against black plague bioterror attack 3Protein Research Marketing Insights 2Protein Research Marketing Insights 3
NAP-2 (5C7)...
... (rapid amplification of cDNA ends) technique that ... and 3' cDNA ends. The GeneRacer Kit ... (RT) for improved amplification of the full-length ... The RNase H portion of SuperScript II ...
The Hybrid Hunter Yeast Two-Hybrid System uses the activation of reporter genes to indicate positive protein-protein interactions. Two reporters are used an auxotrophic marker and lacZ....
... Bean Nuclease catalyzes the degradation of single-stranded ... terminated products. While the nuclease prefers ssDNA ... concentrations the enzyme degrades double-stranded DNA from ... been used for transcript mapping studies (3,4), ...
Biology Products: