Navigation Links
Scientists make turfgrass safer for animals, deadly for insects
Date:9/6/2011

WEST LAFAYETTE, Ind. - The right combination of compounds produced by a beneficial fungus could lead to grasses that require fewer pesticides and are safer for wildlife and grazing animals, according to Purdue University scientists.

Neotyphodium is a fungus called an endophyte. It lives symbiotically, feeding off many species of grasses while providing the grass with protection from insects such as black cutworm. But Neotyphodium also can be toxic to animals based on the types of alkaloids it produces. It was once a serious concern for pasture managers.

Scientists have previously eliminated alkaloid profiles that caused toxicity in livestock, meaning pasture managers could feed their livestock without making them sick. But in making the grasses safe for animals, their susceptibility to insects came into question.

"These endophytes have changed everything for farmers who let their animals graze," said Douglas Richmond, a Purdue assistant professor of turfgrass entomology and applied ecology. "But they created another potential problem."

Richmond worked with researchers in New Zealand to assemble a series of Neotyphodium endophytes that are safe for livestock consumption and tested them to see which would also act as natural insecticides. They found a relatively few strains of the fungus that meet both criteria by producing two key alkaloid toxins - N-acetyl norloline and peramine which are a product of the fungal metabolism. The scientists determined they were effective by characterizing insect growth and survival on grasses with different alkaloid profiles.

Richmond said that grasses naturally infected with the desired endophyte strains can now be propagated for commercial production.

"Both are relatively safe for mammals and other grazing wildlife," Richmond said. "Now the seed industry can put these endophytes into turf and pasture grasses and not worry about potential non-target effects."

Those endophytes also mean that farmers, golf course turf managers and even homeowners caring for their lawns could use fewer insecticides to manage their grasses.

"I think this is going to be very important for sustainability. It's going to decrease the footprint of cultured turf and pasture grasses," said Richmond, whose results were published in the Journal of Environmental Entomology. "And if you like having wildlife around having deer come up to your lawn if you live near the woods this is a benefit because it's safe for those animals."


'/>"/>

Contact: Brian Wallheimer
bwallhei@purdue.edu
765-496-2050
Purdue University
Source:Eurekalert

Related biology news :

1. Scripps Research scientists pinpoint shape-shifting mechanism critical to protein signaling
2. New cellular surprise may help scientists better understand human mitochondrial diseases
3. Scripps Research scientists establish new class of anti-diabetic compound
4. Scripps Research scientists produce first stem cells from endangered species
5. Scientists announce human intestinal stem cell breakthrough for regenerative medicine
6. Scientists unravel the cause of rare genetic disease: Goldman-Favre Syndrome explained
7. Hurricane Irene: Scientists collect water quality and climate change data from huge storm
8. Tropical coral could be used to create novel sunscreens for human use, say scientists
9. Scientists find new drug candidates for set of protein-folding diseases
10. Weight loss without the hunger: Cornell scientists say eat a lighter lunch
11. Scientists receive grant to develop new DNA sequencing method
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/21/2016)... March 22, 2016 Unique ... passcodes for superior security   ... provider of secure digital communications services, today announced it ... and offer enterprise customers, particularly those in the Financial ... and voice authentication within a mobile app, alongside, and ...
(Date:3/15/2016)... York , March 15, 2016 ... market report published by Transparency Market Research "Digital Door Lock ... and Forecast 2015 - 2023," the global digital door lock ... 731.9 Mn in 2014 and is forecast to grow at ... Growth of micro, small and medium enterprises (MSMEs) across the ...
(Date:3/14/2016)... http://www.apimages.com ) - ... - Renvoi : image disponible via AP Images ( ... --> DERMALOG, le leader de l,innovation ... d,empreintes digitales pour l,enregistrement des réfugiés en Allemagne. ... produire des cartes d,identité aux réfugiés. DERMALOG dévoilera ...
Breaking Biology News(10 mins):
(Date:4/29/2016)... ... 2016 , ... During a two day program for start-up ... CereScan’s CEO, John Kelley, joined other Denver business leaders in providing business basics ... Denver area business community, shared his top fundamental learnings in building an effective, ...
(Date:4/28/2016)... , April 28, 2016 ... reports the Company,s CEO  was featured in an ... Enter When VCs Fear To Tread: http://www.lifescienceleader.com/doc/accelerators-enter-when-vcs-fear-to-tread-0001 ... magazine is an essential business journal ... from emerging biotechs to Big Pharmas. Their content ...
(Date:4/27/2016)... ... , ... Cambridge Semantics, the leading provider of Smart Data analytic ... been named to The Silicon Review’s “20 Fastest Growing Big Data Companies of 2016.” ... the needs of end users facing some of the most complex data challenges in ...
(Date:4/27/2016)... SILVER SPRING, Md. and RESEARCH ... -- United Therapeutics Corporation (NASDAQ: UTHR ) announced ... Co-Chief Executive Officer, of United Therapeutics will provide an ... Deutsche Bank 41 st Annual Health Care Conference. ... May 5, 2016, at 10:00 a.m. Eastern Time, and ...
Breaking Biology Technology: