Navigation Links
Bacteria living on old-growth trees
Date:2/23/2011

A new study by Dr. Zo Lindo, a post-doctoral fellow in the Department of Biology at McGill University, and Jonathan Whiteley, a doctoral student in the same department, shows that large, ancient trees may be very important in helping forests grow.

These findings highlight the importance of maintaining the large old-growth trees in the coastal temperate rainforests that stretch from Southern Alaska to Northern California. Lindo's findings suggest that it is the interactions between old trees, mosses and cyanobacteria, which contribute to nutrient dynamics in a way that may actually sustain the long-term productivity of these forests.

"What we're doing is putting large old trees into a context where they're an integral part of what a forest is," says Dr. Lindo. "These large old trees are doing something: they're providing habitat for something that provides habitat for something else that's fertilizing the forest. It's like a domino effect; it's indirect but without the first step, without the trees, none of it could happen."

There are three players in this story: 1) large, old trees; 2) mosses that grow along their branches; and 3) a group of bacteria called cyanobacteria associated with the mosses. The cyanobacteria take nitrogen from the atmosphere and make it available to plantsa process called "nitrogen fixation" that very few organisms can do.

The growth and development of many forests is thought to be limited by the availability of nitrogen. Cyanobacteria in mosses on the ground were recently shown to supply nitrogen to the Boreal forest, but until now cyanobacteria have not been studied in coastal forests or in canopies (tree-tops). By collecting mosses on the forest floor and then at 15 and 30 metres up into the forest canopy, Lindo was able to show both that the cyanobacteria are more abundant in mosses high above the ground, and that they "fix" twice as much nitrogen as those associated with mosses on the forest
'/>"/>

Contact: Katherine Gombay
katherine.gombay@mcgill.ca
514-398-2189
McGill University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Pollution with antibiotics leads to resistant bacteria
2. Asthma tied to bacterial communities in the airway
3. New research traces evolutionary path of multidrug-resistant strep bacteria
4. Bacteria possible cause of preterm births
5. Food-borne bacteria causes potentially fatal heart infection
6. New method attacks bacterial infections on contact lenses
7. The genius of bacteria
8. 2 bacterial enzymes confer resistanceto common herbicide, say MU researchers
9. Defense mechanism against bacteria and fungi deciphered
10. The good, the bad and the green -- harnessing the potential of bacteria
11. A pesky bacterial slime reveals its survival secrets
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/30/2014)... July 30, 2014 NexID Biometrics ... liveness detection solutions for the biometric authentication industry, ... consortium revolutionizing online authentication with standards for strong ... , "The decision to join FIDO Alliance stems ... pervasive in use. We believe the FIDO Alliance ...
(Date:7/30/2014)... Scientists are searching through a massive collection of 20-million-year-old ... years ago, and the effort is yielding fresh insights ... , When the collection is fully curated, a task ... largest unbiased Dominican amber collection in the world, the ... thus far is that of a pygmy locust, a ...
(Date:7/30/2014)... in cancer treatment has been shown to relieve ... for neural transmission between the peripheral and central ... Institute of Radiation Medicine, Chinese Academy of Medical ... into rat dorsal root ganglia (DRG) to provide ... radioactivity (0, 14.8, 29.6 MBq) were implanted separately ...
Breaking Biology News(10 mins):NexID Biometrics Joins the FIDO Alliance 2Decades-old amber collection offers new views of a lost world 2
... 21 February 2011 Elsevier, a world-leading publisher ... services, and TAIR - The Arabidopsis Information Resource, ... elements of scientific research. All articles on Elsevier,s ... genes and use AGI codes (e.g. AT4G32520) will ...
... Researchers at Albert Einstein College of Medicine ... to protect against an increasingly common and particularly deadly form ... tested in an animal model, are reported in a paper ... Pneumococcal pneumonia can occur when the lungs are ...
... heart diseases affect approximately one in 100 patients, making ... number-one cause of pediatric deaths. Now a new ... cardiac muscle damage in a mouse model of the congenital ... treatment for this rare condition, but also demonstrates the importance ...
Cached Biology News:Vaccine made with synthetic gene protects against deadly pneumonia 2Vaccine made with synthetic gene protects against deadly pneumonia 3Study shows rapamycin reverses myocardial defects in mouse model of LEOPARD syndrome 2Study shows rapamycin reverses myocardial defects in mouse model of LEOPARD syndrome 3
(Date:7/30/2014)... A study presented at the 2014 ... of CSL Behring,s C1 Inhibitor (C1-INH) concentrate in ... sensitized patients. C1-INH is a human protein and ... The study shows that post-transplant treatment with ... of complement components 3 and 4, suggesting that ...
(Date:7/30/2014)... Canada (PRWEB) July 30, 2014 ... available in health services research for a relatively ... upswing in interest regarding the use of these ... practice conditions. , By combining today’s powerful computer ... the digital era, ‘big data’ holds significant promise ...
(Date:7/30/2014)... 2014   Wyle has been named ... Mission Support Services (FILMSS) contract awarded by the ... terms of the contract, Wyle will provide mission ... Calif. In particular, Wyle will provide program and ... on the International Space Station and collaborative science ...
(Date:7/30/2014)... MA (PRWEB) July 30, 2014 BCC ... Global Markets for Enzymes in Industrial Applications , ... reach to nearly $7.1 billion by 2018, registering a ... growth is estimated to be recorded in the detergent ... forecast period. , Enzyme technology has influenced almost every ...
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 3Leveraging ‘Big Data’ - Methodological Considerations in Health Services Research, New Webinar Hosted by Xtalks 2Wyle Wins NASA's Fully Integrated Lifecycle Mission Support Services Contract 2Global Market for Industrial Enzymes to Reach Nearly $7.1 Billion by 2018; Detergent Enzyme Market to Record Maximum Growth 2Global Market for Industrial Enzymes to Reach Nearly $7.1 Billion by 2018; Detergent Enzyme Market to Record Maximum Growth 3
... FRANCISCO, Calif., Jan. 4 Cerimon,Pharmaceuticals, Inc. announced ... Counsel, a newly established position, and Vice President ... global life sciences,executive and corporate attorney with broad ... in the US and,Europe. In the business development ...
... efficacy in treatment of multi-drug ... resistant infections -, ... "Company"), a biopharmaceutical company focused on the,development of novel antibiotics for ... patients in two,separate Phase 2 clinical trials. The studies will evaluate ...
... and biotechnology ... expertise, BOSTON, Jan. 3 Observant LLC has ... for research excellence,and a commitment to client service. John ... firm as Vice President. Dr. Hartman,s,research has focused on ...
Cached Biology Technology:Cerimon Pharmaceuticals Names Matthew J. Meyer its General Counsel and Vice President of Business Development and Licensing 2Rib-X Pharmaceuticals Initiates Two Phase 2 Studies for Novel Antibiotic Compound RX-1741 2Rib-X Pharmaceuticals Initiates Two Phase 2 Studies for Novel Antibiotic Compound RX-1741 3Observant LLC Expands Senior Management Team 2
... Ion Channel Cell Lines ,High Quality, Functionally-Validated, ... are well known for having a critical ... consequently have a key function in pain, ... ion channels have been investigated in therapeutic ...
... from frozen embedded tissue blocks, which are ... ensure the highest quality. Tissues of each ... sectioned at a thickness of 7 microns ... large (3-5 mm in diameter) in comparison ...
... Ideal for hand-held applications or for use ... with a hand-held eight-port disposable manifold provides ... a multi-channel pipette. The StatMatic II can ... sizes and can completely fill a microplate ...
... Zyagen tissue microarrays are derived from Paraffin ... rigorous quality control procedures to ensure the ... manually assembled in one block, sectioned at ... on coated slides. Sections are large (3-5 ...
Biology Products: