HOME >> BIOLOGY >> NEWS
Plants vs. disease: 'Trench warfare at the molecular level'

PROVIDENCE, R.I. -- By observing the battle between bacterial speck disease and tomatoes, biologists have discovered how plant cells resist some ailments. Researchers from the Boyce Thompson Institute (BTI) for Plant Research Inc. and Cornell University can now demonstrate how disease-causing organisms deliver destructive agents to plants, and how the plants fight back.

"It's like radar detecting an incoming missile" says Gregory B. Martin, senior scientist at BTI and a Cornell plant pathologist. "Consider it trench warfare at the molecular level." While Cornell and BTI are both located in Ithaca, N.Y., Martin will present this information to a plenary session of the American Society of Plant Biologists on Tuesday, July 24, at 4 p.m. at the Rhode Island Convention Center in Providence. The session is titled "Signal transduction mechanisms in plant defense activation."

One combatant is Pseudomonas syringae , the bacterium responsible for causing bacterial speck disease. Martin and his colleagues have learned that P. syringae attacks healthy tomato plants by attaching itself to the plant cell, inserting a microscopic tube and sending a pathogenic protein -- like ammunition -- into the cell.

Despite the attack, the plant cell is prepared for the invading onslaught. Using a molecular surveillance system behind the cell wall, the plant cell detects alien proteins and mounts a defense.

Although bacterial speck disease has been known since the early 1930s, it did not result in serious losses until the winter tomato crop of 1977-78 in southern Florida. Cool, moist

environmental conditions contributed to the development of the disease, and it has now established itself as a major production problem, according to Thomas A. Zitter, Cornell professor of plant pathology.

The disease produces black lesions, often with a discrete yellow halo that can appear on the plant leaves and cause them to curl. Growers had been instructed
'"/>

Contact: Blaine P. Friedlander, Jr.
bpf2@cornell.edu
607-255-3290
Cornell University News Service
20-Jul-2001


Page: 1 2 3

Related biology news :

1. Plants will not save us from greenhouse gases
2. Plants for the future: A European vision for plant biotechnology towards 2025
3. Plants circadian clocks tune into latitude to enhance fitness
4. Plants and people share a molecular signaling system, researchers discover
5. Nonnative Invasive Plants of Southern Forests
6. Plants, insects play cat and mouse game
7. Plants as plants: gene could convert crops to plastics factories
8. Plants, pathogens engage in trench warfare
9. Study: Microgravity May Enhance Gene Transfer In Plants
10. Invading Pests Harm People, Plants And Animals
11. Plants Use Snorkels To Survive Floods

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:11/27/2019)... ... November 27, 2019 , ... ... device, equipped with surface electromyography (sEMG) sensors that measure and display muscle activity ... the specific muscles being targeted for treatment. Both patient and therapist can see ...
(Date:11/19/2019)... ... November 19, 2019 , ... The inaugural Cell & Gene Therapy ... York City. The one-day event will be chaired by Dr Aiman Shalabi, VP R&D, ... space. , “We are witnessing significant innovation in cell and gene therapies, and ...
(Date:11/12/2019)... ... November 12, 2019 , ... ... the design and manufacturer of technical ergonomic seating solutions, announced this week ... with Healthier Hospital Initiative guidelines. Established by Practice Greenhealth, a health care ...
Breaking Biology News(10 mins):
(Date:10/29/2019)... ... 29, 2019 , ... Researchers at Sony recently demonstrated biometric ... imagers , researchers identified people by the image of a small patch on ... recognition, fingerprints and vasculature. , The new CMS4 series of cameras offer ...
(Date:10/22/2019)... ... 2019 , ... nQ Medical, Inc. of Cambridge, MA, was recognized in the ... was announced at a showcase event yesterday in Los Angeles. nQ competed against 3,500 ... and impressive near-term growth projections to be named one of the most fundable companies ...
(Date:10/22/2019)... ... 22, 2019 , ... Enplug , a leading cloud-based ... into its digital signage platform. The collaboration brings one of the most trusted ... to leverage their existing digital signage networks to quickly disseminate critical safety information ...
(Date:10/17/2019)... ... October 15, 2019 , ... TopConsumerReviews.com recently gave ... DNA Testing for health and/or genealogy research purposes. , There are many reasons ... people want to know more about themselves at a cellular level: family history, ...
Breaking Biology Technology:
Cached News: