HOME >> BIOLOGY >> NEWS
Tiny bugs in mealybugs have smaller bugs inside them

Like tiny Russian dolls, the mealybugs that infest your houseplants carry bacteria inside their cells that are themselves infected with another type of bacteria. A new study by researchers at the University of California, Davis, shows that instead of spreading from bug to bug, the second set of bacteria infected the first several times in the past and are now being passed along and evolving with them.

The knowledge could be useful for working out how the insect species are related to each other, aiding pest control efforts.

Scientists had previously known that mealybugs carry two different types of bacteria. In 2001, researchers at Utah State University led by Carol von Dohlen showed that one type, called the secondary or S-endosymbiont, was actually inside the other, called the primary or P-endosymbiont. The P-endosymbionts were themselves inside specialized cells in the mealybug's body.

The P-endosymbionts seem to benefit mealybugs by making essential amino acids not found in their diet of plant sap, said UC Davis microbiology professor Paul Baumann.

"The insect has domesticated a bacterium for its own use," Baumann said. So far, no one knows what benefits flow to the insect or the P-endosymbiont from the S-endosymbionts, he said.

Baumann, with postgraduate researcher My Lo Thao and entomology professor Penny Gullan studied DNA sequences of P-and S-endosymbionts from several different species of mealybugs to see how they were related to each other.

The P-endosymbionts are all descended from an infection of an ancestor bug 150 to 250 million years ago, Baumann said. The S-endosymbionts had infected P-endosymbionts at least four times. Since then, the bacteria have been passed down through generations of bugs and split into new species at the same time as their hosts.

Because the evolutionary trees of the bugs, their bacteria and their bacteria's bacteria are so similar, the bacterial DNA sequences can b
'"/>

Contact: Andy Fell
ahfell@ucdavis.edu
530-752-4533
University of California - Davis
27-Aug-2002


Page: 1 2

Related biology news :

1. Why some animals have smaller eyes: Lifestyle matters
2. Brain size in premature infants significantly smaller than full-term babies
3. Peering inside the body, with a new spinliterally
4. Microbes found in Mayan ruins may deteriorate stone from inside out
5. Scripps scientists look deep inside sharks and their high-performance swimming system
6. IUB scientists to study the ecology of infectious disease -- inside ticks
7. 3-D imaging inside living organism, using quantum dots
8. Automated imaging of brain tissue, high-quality glimpses inside arteries
9. Heart disease among some Japanese may be due to sequencing variation inside a gene
10. Peering inside a blood vessel
11. Buffalo neuroimaging researchers studying multiple sclerosis from inside human brain

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Tiny bugs mealybugs have smaller bugs inside them

(Date:12/19/2014)... 18, 2014   LaunchKey , the first decentralized mobile ... Internet of Things era, today announced the close of ... was led by Metamorphic Ventures with participation from ENIAC ... and others.  LaunchKey has raised $4 million to date, ...
(Date:12/17/2014)... Valencell, a leader in performance biometric data sensor ... leaders such as Intel, Jabra, Atlas, and Scosche to ... These products will be showcased at CES 2015, taking ... . "Our partners choose PerformTek biometrics, ...
(Date:12/11/2014)... and Markets , http://photos.prnewswire.com/prnh/20130307/600769 ... the addition of the "Biometrics Market in the ... One major trend emerging in this market is ... is important to upgrade biometric solutions to the latest ...
Breaking Biology News(10 mins):LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
(Date:12/24/2014)... Dec. 24, 2014  United Therapeutics Corporation (NASDAQ: ... MDT ) has submitted a pre-market approval application ... the use of Medtronic,s SynchroMed ® II implantable ... use with United Therapeutics, Remodulin ® (treprostinil) Injection ...
(Date:12/24/2014)...  Vermillion, Inc. (Nasdaq:   VRML), a bio-analytical solutions ... the Company closed its previously announced private placement ... W. Schuler , Birchview Fund LLC and several ... offering expenses.  The proceeds will be used for ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 “Preparative ... Gas, HPLC, Flash), Consumables (Columns, Solvents, Buffers, Valves, ... Food & Agriculture) - Forecasts to 2019” provides ... challenges, opportunities, current market trends, and strategies impacting ...
(Date:12/24/2014)... Earlier this year in a June 24 international conference presentation, ... Technology Center, LLC ( ASCTC ) focused attention on an ... stem cells. His title “Asymmetric Self-Renewal by Distributed Stem ... the essence of his message to congress participants. He ...
Breaking Biology Technology:United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Vermillion Announces Closing of Equity Financing 2Vermillion Announces Closing of Equity Financing 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4
Cached News: