Navigation Links
Faster development might have its costs
Date:1/24/2011

Fast development is often perceived as an advantage, as it enables better harmony with one's environment and readiness to cope with the challenges that it poses. However, research conducted at the University of Haifa, Israel, and University of California, Santa Cruz, and published in the scientific journal PLoS ONE*, found that the acceleration of developmental rate incurs potentially lethal physiological costs for the developing individual. "Our findings are consistent with research findings on other animals and call for further research on rates of development in humans," said Asaf Sadeh who led the study.

This study, part of Sadeh's PhD research, was conducted on the fire salamander (Salamandra infraimmaculata) in conjunction with Prof. Leon Blaustein and Noa Truskanov from the University of Haifa, and with Prof. Marc Mangel from the University of California. The fire salamander in Israel breeds in temporary pools that fill during the winter rains and usually dry up in the spring. The larvae that are born into these pools must complete their development and metamorphose into terrestrial life before their pools dry. Larvae failing in this developmental race are destined to die from desiccation.

In the first part of the study, the scientists examined whether salamander larvae employ some early warning mechanism that alerts them to step up their rates of development to avoid drying. They reared an experimental group of larvae in water, to which they added a minute quantity of powder of ground larvae that had desiccated in natural temporary ponds. The development of these larvae was compared to a control group that was not exposed to the powder. They found that immediately after their birth into the pond, the larvae detected the presence of the dried remains and developed more quickly than the control group. Sadeh and colleagues propose that the chemical composition of the flesh of the dead larvae changes as they toast in the sun, producing a
'/>"/>

Contact: Rachel Feldman
rfeldman@univ.haifa.ac.il
972-482-88722
University of Haifa
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Study finds fisheries management makes coral reefs grow faster
2. Major advance in MRI allows much faster brain scans
3. MGH researchers develop faster method of engineering zinc-finger nucleases
4. Faster water flow means greater diversity of invertebrate marine life
5. This faster-growing E. coli strains a good thing
6. Faster CARS, less damage: NIST chemical microscopy shows potential for cell diagnostics
7. Faster DNA analysis at room temperature
8. Synthetic bone graft recruits stem cells for faster bone healing
9. Faster Salmonella detection now possible with new technique
10. UCLA engineers develop faster method to detect bacterial contamination in coastal waters
11. Chubby birds get there faster
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Faster development might have its costs
(Date:12/10/2014)... December 9, 2014   ... Platform   Jifflenow, ... scheduling solutions for business-to-business (B2B) events, today announced ... in mobile near-field communication (NFC), Bluetooth low energy ... (Logo: http://photos.prnewswire.com/prnh/20140612/691055) , Jifflenow will integrate ...
(Date:12/3/2014)... Dec. 2, 2014   Marvin Test Solutions ... test solutions for military, aerospace, and manufacturing organizations, ... its successful TS-900 PXI semiconductor test platform ... of high-end systems to customers at a fraction ... to traditional ATE. "Our semiconductor ...
(Date:11/21/2014)... , Nov. 20, 2014 Strict laws ... efficiency are piloting the North American and European automotive ... accidents growing, gesture recognition systems that are intuitive and ... mark in the industry. New analysis ... Gesture Recognition Market in Europe ...
Breaking Biology News(10 mins):Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 2Jifflenow And ITN International Bring Cutting-Edge Badge Scanning Technology To B2B Events 3Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 2Marvin Test Solutions Brings New Capabilities to PXI-Based Semiconductor Test with TS-960 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4
... Boston, Mass. A computational physicist and a cognitive ... the beginnings of a noninvasive test to evaluate an ... which records electrical activity in the brain, with machine-learning ... percent accuracy in distinguishing between 9-month-old infants known to ...
... cycle, helping sequester significant amounts of carbon. Some algal ... discolor coastal waters and reduce the amount of light ... "red tide," the term "harmful algal blooms" (HABs) was ... biomass can sometimes also turn the ocean waters brown ...
... Cross-disciplinary teams of scientists studying genetic pathways that ... also cause certain forms of congenital heart disease ... muscle that is the leading cause of sudden death ... mutations into mice and successfully treated HCM in the ...
Cached Biology News:Using EEGs to diagnose autism spectrum disorders in infants 2Using EEGs to diagnose autism spectrum disorders in infants 3Brown tide culprit sequenced: Genome of the first of algal bloom species 2Brown tide culprit sequenced: Genome of the first of algal bloom species 3Brown tide culprit sequenced: Genome of the first of algal bloom species 4Cancer-related pathways reveal potential treatment target for congenital heart disease 2Cancer-related pathways reveal potential treatment target for congenital heart disease 3
(Date:12/19/2014)... 19, 2014 Decision Resources Group finds that ... a 12 percent compound annual growth rate through 2023. ... population and the increasing adoption of dental implants. Growing ... will also spur demand for dental biomaterials because they ... periodontal treatments. Other key findings from Decision ...
(Date:12/19/2014)... (PRWEB) December 18, 2014 LayerBio is ... ophthalmology and wound care. The National Eye Institute (NEI) ... LayerBio a Phase I SBIR grant to develop a ... are the most common cause of vision loss in ... blindness worldwide. According to Dr. Ken Mandell, LayerBio’s Founder ...
(Date:12/19/2014)... In contrast to traditional LED lights where the ... uses proprietary LED technology to incorporate their spectra in ... is critical in low proximity installations. The Valoya L-series ... lifetime which is up to four times longer than ... cost was clearly higher when compared to traditional fluorescent ...
(Date:12/19/2014)... , Dec. 18, 2014 Egenix, Inc. is pleased ... elected Chairman of the Board, to succeed Donald Fresne ... but will continue as a member of the Board.  In ... added to the company over almost twenty years, the Board ... Board of Directors has established a Search Committee to find ...
Breaking Biology Technology:Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 2Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 3LayerBio Awarded NIH Grant to Develop a Drug Delivery Device for Cataract Surgery 2
... Corporation (Nasdaq: DNDN ) today announced the ... Association,s (AUA) Annual Meeting in Chicago, as well as ... , ... double-blind, placebo-controlled, multi-center, phase III trial of sipuleucel-T in ...
... April 24 LyondellBasell Industries today announced that ... to Lyondell Chemical Company,s reorganization filing under Chapter ... the European holding company against claims by certain ... AF S.C.A. is a holding company incorporated in ...
... in determining risk for colorectal cancer, the second leading ... Several common genetic markers have been found to be ... that lead to cancer can be much more difficult. ... Research (www.genome.org), scientists have identified a common genetic ...
Cached Biology Technology:Dendreon Announces Data Presentations and Webcast at AUA Annual Meeting 2LyondellBasell Adds Holding Company to Chapter 11 Protection 2Beyond associations: Colorectal cancer culprit found 2
... Microarrays designed for DNA aptamer screening and ... and powerful Paraflo microfluidic on-chip synthesis platform. ... synthesized on-chip and LC Sciences can provide ... are available as part of our comprehensive ...
... (GST) is commonly used as a fusion ... (1). The GSTTag sequence has been reported ... cases the solubility of its fusion partners. ... form, GSTTag fusion proteins can be purified ...
... sequence is from the C-terminal end of the mouse retinoic acid receptor ... 429 to 448 of RAR*. The sequence of PEP-005 is (amino ... - P - S - S - V - E - N ... - P - L - L - Q (The N-terminal cysteine ...
... the next step in the evolution of ... system that delivers labware to multiple laboratory ... times the throughput of ordinary microplate robots. ... variety of configurations to meet any labs ...
Biology Products: