Navigation Links
Orchids and fungi: An unexpected case of symbiosis
Date:7/12/2011

n associate with specific fungal clades not shared with other sympatric orchids."

So to what degree are these photosynthetic, sunny meadow orchids dependent on their fungal associates for nutrient acquisition?

To answer this question, the authors used stable isotope analysis to compare isotopically distinguishable fungal-derived carbon and nitrogen in orchid tissue and compared it to that of neighboring non-orchid plants. This technique assesses how much of the organic carbon and nitrogen found in the leaves of the orchids was acquired from their fungal partners.

The authors found that all four orchids had higher N15 compared to their neighbors, indicating that these orchids do depend on their fungal symbionts for a substantial amount of nutrition. Moreover, the orchid with the highest fungal specificity, Orchis purpurea had the highest N15 and C13 gain, and was thus partly dependant on its fungal partners for organic carbon.

"Our paper demonstrates that some fully photosynthetic orchids can still gain organic carbon from their mycorrhizal fungal partners," commented Girlanda. "Of course we would like to investigate this phenomenon further in orchids such as Orchis purpurea in order to understand whether carbon dependency may be related to particular seasons, life stages and growth patterns, or to plant species."

"It seems that there is not such a sharp distinction between photosynthetic and non-photosynthetic orchids, despite the different fungal partners and photoautotrophic capabilities," concluded Perotto. "A flow of organic carbon from the fungus to the plant can also occur in photosynthetic species and likely depends on energy demands by the plant during different life stages."

Perotto and Girlanda indicate that there are still many questions they'd like to pursue, such as learning the source for the fungal-derived carbon found in these orchids as well as the functional roles of the mult
'/>"/>

Contact: Richard Hund
rhund@botany.org
314-577-9557
American Journal of Botany
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Dracula orchids and goblin spiders
2. Orchids and fungi -- partners for life
3. Unexpected function of dyslexia gene
4. Unexpected exoskeleton remnants found in Paleozoic fossils
5. New research reveals unexpected biological pathway in glaucoma
6. Unexpected findings of lead exposure may lead to treating blindness
7. Land evapotranspiration taking unexpected turn: huge parts of world are drying up
8. Waters unexpected role in blood pressure control
9. Unexpectedly high rate of multiple strains in fungal infection
10. Sonic hedgehog gene found in an unexpected place during limb development
11. Study reveals H1N1 unexpected weakness
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Orchids and fungi: An unexpected case of symbiosis
(Date:7/30/2014)... her eggs until they hatched 4.5 years later, according ... open-access journal PLOS ONE by Bruce Robison ... Octopuses typically have a single reproductive period during their ... their fertilized eggs until they hatch. Shallow-water octopuses typically ... but little is known about the brooding of deep-sea ...
(Date:7/30/2014)... two points is a straight line, and now Harvard ... familiar axiom to heart. , Though competition among ... each racing for the chance to fertilize the egg, ... groups that allow them to take a straighter path ... by Heidi Fisher, a post-doctoral student working in the ...
(Date:7/30/2014)... San Antonio Life Sciences Institute (SALSI), a joint venture ... and The University of Texas Health Science Center at ... Initiative Pilot Program. The winners, Emily Boice from UTSA ... receive $25,000 for their project titled, "Novel engineered ferritins ... environment." , Boice and Huang,s research is focused on ...
Breaking Biology News(10 mins):Deep-sea octopus has longest-known egg-brooding period 2When cooperation counts 2When cooperation counts 3
... A survey of bat activity in burned and unburned areas after ... evidence of detrimental effects on bats one year after the fire. ... some species may even benefit from the effects of fire on ... Frick of the University of California, Santa Cruz, will be published ...
... and Boston, MA. Wed. March 6, 2013 New ... and Women,s Hospital, Harvard University, MIT, and Yale University ... cell known as a T helper 17 or ... the development of immune responses. By figuring out how ...
... Scientists at the Salk Institute for Biological Studies have identified ... adapt to various environments, but could also benefit crop production ... in Nature , the findings show that in addition ... epigenomic makeup is as varied as the environments in which ...
Cached Biology News:Bats not bothered by forest fires, study finds 2Circuitry of cells involved in immunity, autoimmune diseases exposed 2Circuitry of cells involved in immunity, autoimmune diseases exposed 3Circuitry of cells involved in immunity, autoimmune diseases exposed 4Circuitry of cells involved in immunity, autoimmune diseases exposed 5Hidden layer of genome unveils how plants may adapt to environments throughout the world 2Hidden layer of genome unveils how plants may adapt to environments throughout the world 3
(Date:7/30/2014)... 2014  Dyadic International, Inc. ("Dyadic") (OTCQX: DYAI), ... proprietary technologies are used to discover, develop, manufacture ... bioenergy, bio-based chemical, biopharmaceutical and industrial enzyme industries, ... as Vice President and Chief Financial Officer. Tom ... information technology operations for Dyadic and will succeed ...
(Date:7/30/2014)... , July 30, 2014  AtheroNova Inc. (OTCBB: ... and development of compounds to safely regress atherosclerotic ... announces that its partner, CardioNova, has accomplished first ... trial with AtheroNova,s lead compound, AHRO-001.  This Phase ... AHRO-001 Phase 1 safety trial completed in February ...
(Date:7/30/2014)... July 30, 2014 Connecticut Center for ... based in East Hartford, Conn., was awarded a Rural ... of a project that will determine the feasibility of ... north-central Connecticut. USDA Rural Development provided $53,000 for CCAT ... the second phase of the feasibility study in fiscal ...
(Date:7/30/2014)... Immunology Summit-2014 will be ... scientists in the field, which includes prominent personalities ... Western Reserve University School of Medicine, USA, who ... “The effects of recombinant human IL-6 and recombinant ... Biragyn, a Senior investigator at National Institute on ...
Breaking Biology Technology:Thomas Dubinski joins Dyadic as Chief Financial Officer 2Thomas Dubinski joins Dyadic as Chief Financial Officer 3Thomas Dubinski joins Dyadic as Chief Financial Officer 4AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 2AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 3AtheroNova Announces Milestone with Initiation of Phase 1b Clinical Trial of AHRO-001 4USDA Grant Funds Second Phase of Bio-Energy Research Community Economic Development in CT 2USDA Grant Funds Second Phase of Bio-Energy Research Community Economic Development in CT 3Unveiling Breakthroughs in Clinical & Cellular Immunology 2Unveiling Breakthroughs in Clinical & Cellular Immunology 3
... GE Healthcare and Intermountain Health Care ... software program that would accelerate the adoption of electronic ... was announced at the annual Healthcare Information and Management ... companies hope to take the clinical knowledge that IHC ...
... next big thing is not enough. , ,Whether you're ... occupying several hard-won niches, or a high-energy start-up, protecting ... Miller, an intellectual property lawyer with Michael Best & ... eInnovate, a Milwaukee-based technology forum, Miller said some researchers ...
... Small Tree Communications , a niche hardware company that ... funding round from Chippewa Valley Angel Investors Network . ... our business faster by getting our products to market sooner," ... us to get office space and equipment, and to develop ...
Cached Biology Technology:GE and Intermountain want to streamline nationwide patient data 2Protect your intellectual property before it's too late 2Protect your intellectual property before it's too late 3Chippewa Valley angels invest in network hardware company 2Chippewa Valley angels invest in network hardware company 3
... to slightly cloudy liquid. Yellow, oily, ... set, each containing 10 ml of ... following proportions by weight: 85% Drakeol ... emulsifier), and 0.1% Mycobacterium butyricum ...
... Easy and Cost effective - Utilizes hands-off ... , No grinding - Extract DNA ... grinding tools between samples , Robust ... beat and homogenize without tube breakage , ...
... secretion of cytoplasmic granules, is a ... of leukocytes (e.g. basophils, neutrophils, eosinophils, ... histamine, these secretory granules contain many ... and many proteases (Hallgren, 2001). Tryptase, ...
... the things youll be telling others after you ... Erica Golemis, One look at the table of ... in protein interaction will tell you immediately that ... part of your personal protein chemistry library. You ...
Biology Products: