Navigation Links
Pesticides choke pathway for nature to produce nitrogen for crops


Jennifer E. Fox, NIH/NRSA postdoctoral fellow at the University of Oregon, has shown that many pesticides interfere with the ability of legumes to recruit soil bacteria needed to provide a natural fertilizer to crops. Credit: University of Oregon
Many farmers applying pesticides to boost crop yields may instead be contributing to growth problems, scientists report in a new study.

According to years of research both in the test tube and, now, with real plants, a team of scientists reports that artificial chemicals in pesticides – through application or exposure to crops through runoff – disrupt natural nitrogen-fixing communications between crops and soil bacteria. The disruption results in lower yields or significantly delayed growth.

In a paper appearing online this week ahead of the regular publication by the Proceedings of the National Academy of Sciences (PNAS), the five-member team reports that agrichemicals bind to and block connections to specific receptors (NodD) inside rhizobia bacteria living in root nodules in the soil. Rotation legume crops such as alfalfa and soybeans require such interaction to naturally replace nitrogen levels that, in turn, benefit primary market crops like corn grown after legume rotations. __IMAGE_2

Legume plants secrete chemical signals that recruit the friendly bacteria, which work with the plants to convert atmospheric nitrogen into ammonia that, then, is used as fertilizer by the plants.

"Agrichemicals are blocking the host plant's phytochemical recruitment signal," said the study's lead author, Jennifer E. Fox, a postdoctoral researcher in the Center for Ecology and Evolutionary Biology at the University of Oregon. "In essence, the agrichemicals are cutting the lines of communication between the host plant and symbiotic bacteria. This is the mechanism by which these chemicals reduce symbiosis and nitrogen fixation."

'"/>

Source:University of Oregon


Page: 1 2 3

Related biology news :

1. Pesticides in the nations streams and ground water
2. Pesticides need sunscreen to beat the heat
3. Scientists find missing enzyme for tuberculosis iron scavenging pathway
4. Scientists identify genetic pathways essential to RNA interference
5. Opposing fat metabolism pathways triggered by a single gene
6. Viral protein influences key cell-signaling pathway
7. Newly discovered pathway might help in design of cancer drugs
8. Scientists identify genetic pathways essential to RNA interference
9. Genpathway and Baylor College of Medicine Identify New Genes in Breast Cancer
10. Scientists discover genetic pathway responsible for breast cancer cell growth
11. Bacteria that cause tooth decay able to survive without important biochemical pathway
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Pesticides choke pathway for nature produce nitrogen for crops

(Date:7/8/2015)... , July 8, 2015  Trovagene, Inc. ... molecular diagnostics, today announced the launch of a ... Company,s Precision Cancer Monitoring℠ (PCM) technology for predicting ... one or a combination of the novel immunotherapy ... (nivolumab), a PD-1 inhibitor. The 50-patient study will ...
(Date:7/2/2015)... , June 25, 2015 ... the addition of the "Natural Language Processing ... (Recognition, IVR, OCR, Pattern & Image Recognition) - ... offering. The key vendors occupying the ... IBM Corporation, Microsoft Corporation, NetBase Solutions, SAS Institute ...
(Date:6/29/2015)... June 24, 2015 Research ... the "Latin America Biomedical Sensors Market - Growth, ... The Latin America Biomedical Sensors market is ... of 2.04% over the period 2014-2020 The ... to the genetic formulation of each individual. These sensors ...
Breaking Biology News(10 mins):Trovagene Initiates Study to Monitor Response to Immunotherapy in Melanoma Patients Using its Precision Cancer Monitoring Platform 2Trovagene Initiates Study to Monitor Response to Immunotherapy in Melanoma Patients Using its Precision Cancer Monitoring Platform 3Trovagene Initiates Study to Monitor Response to Immunotherapy in Melanoma Patients Using its Precision Cancer Monitoring Platform 4Natural Language Processing Market by Type (Rule-Based, Statistical, and Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) - Worldwide Forecast to 2020 2Latin America Biomedical Sensors Market Report 2015-2020 2
... BOZEMAN Two Montana state University researchers are principal ... find noninvasive ways to study carnivores in the wild. ... was released June 27 with Robert Long and Paula ... at MSU,s Western Transportation Institute. Working with ...
... has shown that enhancing the production of a protein ... neuron death associated with Alzheimer,s, at the expense of ... amyloid-beta protein plaques within the brain is a major ... contribute to disease progression. Normally, special enzymes chew up ...
... type of probe that can image thousands of interactions ... tool to untangle the web of signaling pathways that ... use this to identify new protein partners or to ... the proteins are involved in and during which phase ...
Cached Biology News:
(Date:7/28/2015)... , July 28, 2015  Faced with increasing ... are palliative rather than symptomatic, the global healthcare ... existing therapies capable of curing or significantly changing ... starting to look towards regenerative medicine as a ... new paradigm in human health with the potential ...
(Date:7/27/2015)... ... July 27, 2015 , ... Production of high tenacity ... past few years in the EU. For instance, it surpassed the EUR 106 million ... million mark in 2010. Germany is a major producer, while Italy is a key ...
(Date:7/27/2015)... , July 27, 2015 According ... by Type (Home-brew Media, Pre-formulated Media), by Application (Biobanking, Regenerative ... , Europe , Asia-Pacific ... 2019", The global biopreservation media market was valued at $247.7 ... $571.5 million by 2019, at a CAGR of 18.2% between ...
(Date:7/26/2015)... ... July 26, 2015 , ... Maine Standards Company, LLC ... linearity test kit. The VALIDATE® ANEMIA kit contains Ferritin, Folate, and Vitamin B12 ... the CLSI recommended “equal delta” method for linearity testing and is liquid, ready-to-use. ...
Breaking Biology Technology:Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 2Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 3Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 4Stem Cell Therapy to Redefine Regenerative Medicine, says Frost & Sullivan 5High Tenacity Filament Yarn of Viscose Rayon Consumption to Grow Swiftly in the EU, Forecasts BAC Reports in New Study Available at MarketPublishers.com 2Global Biopreservation Media Market to be Worth $571.5 Million by 2019 2Global Biopreservation Media Market to be Worth $571.5 Million by 2019 3Maine Standards Company, LLC Announces Release of VALIDATE® ANEMIA Calibration Verification / Linearity Test Kit 2
... SAN DIEGO, March 30 BrainCells Inc. (BCI), ... using its proprietary platform technology to identify novel ... today the appointment of Dr. Philip Jochelson as ... business officer. Both have extensive experience in the ...
... informed consent software for clinical research trials has named Jovianna ... over 20 years experience driving new pharmaceutical therapeutics and devices ... clinical development to commercialization. , ... ...
... ITMN ) today announced that Daniel G. Welch, ... at Citi,s 4th Annual Biotech Day in New York City ... access a live audio webcast of the presentation, investors and ... page of InterMune,s corporate website at www.intermune.com . ...
Cached Biology Technology:BrainCells Inc. Appoints Philip Jochelson, M.D. Chief Medical Officer and Jason Levin Chief Business Officer 2BrainCells Inc. Appoints Philip Jochelson, M.D. Chief Medical Officer and Jason Levin Chief Business Officer 3Jovianna DiCarlo Named ConsentSolutions, Inc. President & Chief Executive Officer 2
... J. Karn (1995) This volume ... and methods for the study of major ... reverse transcriptase, ribonuclease H, integrase and protease. ... binding assays; Tat and Rev assays; HIV/CD4 ...
Monkey IL-2 ELISPOT Kit with white/opague microtiter plates...
Tachykinin (H-2)...
Human GATA-2 Affinity Purified Polyclonal Ab...
Biology Products: