Navigation Links
Simple nerve cells regulate swimming depth of marine plankton
Date:10/18/2011

This release is available in German.

As planktonic organisms the larvae of the marine annelid Platynereis swim freely in the open water. They move by activity of their cilia, thousands of tiny hair-like structures forming a band along the larval body and beating coordinately. With changing environmental conditions the larvae swim upward and downward to their appropriate water depth. Scientists of the Max Planck Institute for Developmental Biology in Tbingen, Germany have now identified some signalling substances in the larval nervous system regulating swimming depth of the larvae. These substances influence the ciliary beating and thus hold the larvae in the preferred water depth. The scientists discovered a very simple circuitry of nerve cells underlying this regulation, reflecting an early evolutionary state of the nervous system.

The locomotory system of many animals is muscle based. However, small marine animals often move by cilia. This type of locomotion is more ancient in evolution than muscle-based locomotion and very common in marine plankton. Besides the annelid larvae, the larvae of many marine invertebrates are part of this plankton, for example larvae of snails, sea shells and starfish.

"Not much is known about how the nervous systems of the marine plankton regulate ciliary beating, since the locomotion of intensely explored model organisms like the fruit fly is based on muscles," says Gspr Jkely. Together with his team at the Max Planck Institute for Developmental Biology and in cooperation with Thomas A. Mnch at the Centre for Integrative Neuroscience in Tbingen, he has examined in detail the nervous system of marine annelid larvae of Platynereis dumerilii.

The ciliary band of Platynereis larvae serves as a swimming motor in the seawater: When cilia beat fast and continuously, larvae swim upward
'/>"/>

Contact: Gaspar Jekely
gaspar.jekely@tuebingen.mpg.de
49-707-160-11310
Max-Planck-Gesellschaft
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Simple little spud helps scientists crack potatos mighty genome
2. Simple test gives accurate prediction of ovulation to help women become pregnant
3. Pregnant women can prevent excess weight gain with simple steps, study finds
4. Catastrophic amphibian declines have multiple causes, no simple solution
5. Simple fungus reveals clue to immune system protection
6. Simpler woodland strawberry genome aids research on more complex fruits
7. Blood simple circuitry for cyborgs
8. Simpler way of making proteins could lead to new nanomedicine agents
9. Simple marine worms distantly related to humans
10. BU School of Public Health finds simple interventions reduce newborn deaths in Africa
11. Simple, ingenious way to create lab-on-a-chip devices could become a model for teaching and research
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Simple nerve cells regulate swimming depth of marine plankton
(Date:7/9/2015)... , July 9, 2015  Synaptics ... developer of human interface solutions, today announced ... industry,s first fully hardware encapsulated fingerprint sensor ... authentication technology is literally off the grid, ... biometric matching within the fingerprint sensor to ...
(Date:7/8/2015)... 8, 2015 The consumer products industry ... must have products such as wearables, smart wallets & other ... biometrics based devices continues to rapidly grow.  Biometrics & Wearable ... NXTD ), Google Inc. (NASDAQ: GOOG ), Apple Inc. ... GoPro, Inc. (NASDAQ: GPRO ) and Baidu Inc. (NASDAQ: ...
(Date:7/2/2015)... , June 25, 2015 ... announced the addition of the "Natural Language ... Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) ... their offering. The key vendors occupying ... HP, IBM Corporation, Microsoft Corporation, NetBase Solutions, SAS ...
Breaking Biology News(10 mins):Synaptics Announces World's First Match-in-Sensor Fingerprint Authentication Technology 2Synaptics Announces World's First Match-in-Sensor Fingerprint Authentication Technology 3Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 2Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 3Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 4Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 5Consumers Flock to This Summer's Must Have Tech Gadgets as Latest Digital Wallets, Smart Technology & Wearable Products Continue to Grow in Popularity & Functionality 6Natural Language Processing Market by Type (Rule-Based, Statistical, and Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) - Worldwide Forecast to 2020 2
... To help conserve one of Earth,s ecological treasures, The ... to dramatically improve the management and sustainable use of ... of intact forest in the world. In collaboration ... Service, the Botanical Garden is committing its expertise in ...
... FL--In Florida, where population growth, drought, and saltwater intrusion ... effective ways to educate consumers about household water use ... Florida was included on the Natural Resources Defense Council,s ... shortages in the coming years; the daily total state ...
... State University, in collaboration with Michigan State University, has identified ... the workers. The scientists unraveled the gene,s inner workings ... Biology Letters . The gene, which is responsible for leg ... of bees, ability to carry pollen. "The gene ...
Cached Biology News:NYBG launches Amazon Forest Program to help conserve Earth's largest intact forest 2NYBG launches Amazon Forest Program to help conserve Earth's largest intact forest 3NYBG launches Amazon Forest Program to help conserve Earth's largest intact forest 4NYBG launches Amazon Forest Program to help conserve Earth's largest intact forest 5NYBG launches Amazon Forest Program to help conserve Earth's largest intact forest 6Can workshops on household water use impact consumer behavior? 2Research led by Wayne State discovers single gene in bees separating queens from workers 2
(Date:7/31/2015)... China Cord Blood Corporation (NYSE: CO) ("CCBC" ... provider of cord blood collection, laboratory testing, hematopoietic stem ... that the Company has filed its Annual Report on ... The filed Form 20-F includes audited financial statements for ... 20-F can be accessed by visiting the U.S. Securities ...
(Date:7/30/2015)... AACC welcomed thousands of medical professionals ... Meeting & Clinical Lab Expo in ... showcased revolutionary advancements in clinical testing technology and ... to diagnose patients quickly and accurately and make ... As of Wednesday, July 29, more than ...
(Date:7/30/2015)... ... July 30, 2015 , ... The 2015 Market Research Report on ... current state of the global Propanol market with a focus on the Chinese situation. ... Carboclor, Mitsui Chemicals, Oxea, ISU Chemical, Sanofi, Royal Dutch Shell, LG Chem and Zhejiang ...
(Date:7/30/2015)... 2015   Aratana Therapeutics, Inc . (NASDAQ: ... on the licensing, development and commercialization of innovative ... its strategic partner VetStem Biopharma, Inc. has shared ... AT-016, an adipose-derived allogeneic stem cell product exclusively ... pain in dogs. The double-blinded, multi-site, ...
Breaking Biology Technology:China Cord Blood Corporation Files Its Annual Report on Form 20-F 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 2Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 3Innovative Research on Cancer, Heart Disease, and Infectious Diseases Draws More than 17,500 Attendees to 2015 AACC Annual Meeting 4Global Propanol Market Technical Data and Manufacturing Analysis 2020 2Global Propanol Market Technical Data and Manufacturing Analysis 2020 3Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 2Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 3Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 4Aratana Therapeutics Announces Positive Pilot Field Study for AT-016 5
... JERUSALEM, August 25 Oramed Pharmaceuticals,Inc. (OTCBB: ORMP.OB) ( ... that it is the recipient of the 2009 Frost ... Oramed Pharmaceuticals is developing a ... vaccines delivered via injection. Oramed,focuses on the treatment of ...
... , , WALTHAM, Mass., Aug. ... and advisory firms for pharmaceutical and healthcare issues, finds that ... Novartis,s Diovan -- the hypertension drug market will experience only ... will decrease by 1.4 percent annually and thereafter the annual ...
... , SYDNEY, Aug. 25 Malaysia,s plans for ... the government envisages this sector will employ up to 160,000 people ... , , (Logo: http://www.newscom.com/cgi-bin/prnh/20081117/FSLOGO ) , ... economy has highlighted the need for Malaysia to focus on the development of ...
Cached Biology Technology:Frost and Sullivan Honors Oramed Pharmaceuticals With the 2009 European Oral Drug Delivery Technology Innovation Award 2Frost and Sullivan Honors Oramed Pharmaceuticals With the 2009 European Oral Drug Delivery Technology Innovation Award 3Hypertension Drug Market Will Experience Only Modest Annual Decline Through 2018, Despite Generic Erosion Of Many Branded Agents 2Malaysian Biotechnology Sector 2Malaysian Biotechnology Sector 3Malaysian Biotechnology Sector 4
... Kit, 500 reactions. Prepare circular DNA ... h.Generate microgram quantities of template DNA ... amplified DNA directly for cycle sequencing ... M13 liquid cultures, colonies, plaques, or ...
...
Request Info...
Spaced cover glasses to promote effective hybridization...
Biology Products: