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:8/18/2015)... , Aug. 18, 2015  Navitas today ... contributor to the Submission Content Management webinar ... a non-profit forum. Dedicated to the Implementation of ... neutral platform for industry, vendors, health authorities, ... and work towards a standard method of ...
(Date:8/12/2015)... 2015  New research unveiled at Black Hat ... to steal users, fingerprints. Information released today by ... scanners on mobile devices, making the security of ... on mobile devices, HYPR Corp. recently released a ... systems with strong cryptographic security. More information on ...
(Date:8/6/2015)... Calif. , Aug. 6, 2015  Today, ... will visit Crossmatch ™ to learn firsthand ... and protect data. Crossmatch is a world leader ... technologies and expertise are helping federal agencies and ... and security.   "The vast majority ...
Breaking Biology News(10 mins):Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 2HYPR Corp. Addresses Android Vulnerability That Exposes Ecosystem-wide Biometric Security Challenges 3Rep. Honda to Visit Crossmatch in Redwood City 2
(Date:8/26/2015)... VANCOUVER , Aug. 26, 2015 /PRNewswire/ - iCo ... ICOTF), today reported financial results for the quarter ... are expressed in Canadian dollars and presented under ... continue pre-clinical activities with respect to our Oral ... of a contract manufacturer," said Andrew Rae ...
(Date:8/26/2015)...  The Diabetes Research Institute (DRI), a Center ... School of Medicine, announced today that the first ... the first time a novel transplant technique for ... Phase I/II study builds upon decades of progress ... first step toward the development of the DRI ...
(Date:8/26/2015)... , August 26, 2015 Israel Proves Its ... wins 1 st place  Wayerz comes in 5 ... Israel by venture capital fund JVP, with Chinese ... US, China , Israel , ... .  Impressive achievement for the Israeli representatives in the ...
(Date:8/26/2015)... 26, 2015 Despite recent ... the optimism in biotech,s forecast is the recent ... sciences advancements.  Active biotechnology & healthcare companies with ... (OTCQB: PBIO), Sequenom, Inc. (NASDAQ: SQNM ), ... Pharmaceutical Corp. (NASDAQ: RPTP ) and EnteroMedics ...
Breaking Biology Technology:iCo Therapeutics Announces Second Quarter 2015 Financial Results 2iCo Therapeutics Announces Second Quarter 2015 Financial Results 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 2Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 4Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 2Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 3Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 4Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 5Israeli Startup Takes First Place at Shengjing Global Innovation Awards 2015 6New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 2New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 3New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 4New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 5New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 6New Collaborations & Mergers For Research of Molecular Biomarkers in Human Diseases & Clinical Trials for Cancer Therapies Fueling Growth in Multi-Billion Dollar Life Sciences Market 7
Cached News: