Ozone found to have direct effect on genes linked with plants' aging

Penn State research has shown, for the first time, that ozone, a major smog constituent, has a direct effect on the genes associated with the aging process in plants.

Dr. Jennifer Miller, who produced the finding as part of her doctoral thesis, says, "Plant scientists have long known that ozone accelerates the process through which the leaves of a plant age, eventually die and drop. However, our work provides the first evidence that the genetic program that controls the aging process is directly affected by ozone exposure."

She notes that the findings may help other researchers find a way to bolster plants' resistance to ozone, a critical component of smog, which causes an estimated $3 billion in agricultural losses in the United States each year.

Miller detailed her findings in her doctoral dissertation, "Scenescence-Associated Gene Expression in Ozone-Stressed Arabidopsis Leaves," which she defended in June. She is currently an assistant professor of biology at Southwestern College, Winfield, Kansas. Some of her findings were also detailed earlier in a paper, Senescence-Associated Gene Expression during Ozone-Induced Leaf Senescence in Arabidopsis, published in the journal Plant Physiology. Co-authors are Dr. Richard N. Arteca, professor of horticulture and plant physiology, and Dr. Eva J. Pell, the Steimer professor of agricultural sciences, who was Miller's thesis adviser.

Miller conducted her experiments with Arabidopsis, a plant with a short 6 to 8 week life span and a small gene pool that is often used in plant studies. In one experiment, she grew the plants from seed and exposed one group of plants to low levels of ozone for six hours a day while leaving another group untreated.

"The ozone treatment was higher than ambient levels but not high enough to cause visible signs of damage immediately following the exposure. Ozone concentrations in polluted areas can reach the levels used in thes

Contact: Barbara Hale
Penn State

Page: 1 2

Related biology news :

1. Ozone may provide environmentally safe protection for grains
2. Ozone produced by antibodies during bacterial killing and in inflammation
3. Major Set-Back To Ozone Layer Recovery
4. Rivers May Be Emitting Substance Involved In Ozone Destruction
5. Banning Chemicals To Protect Ozone May Aggravate Global Warming
6. Ozone Chat Room Provides Real-Time Air-Quality Research
7. New signs of life found at the Poles
8. Key cell-death step found
9. European common frog found to use novel mating strategy
10. Byproduct of water-disinfection process found to be highly toxic
11. Genuine stem cells found in skin might treat hair loss, wounds

Post Your Comments:

(Date:6/23/2020)... England (PRWEB) , ... June 23, 2020 , ... ... Africa supporting sustainable healthcare, and Renovagen Ltd, a UK supplier and manufacturer of ... project to support testing operations in the fight against the COVID-19 pandemic in ...
(Date:6/23/2020)... , ... June 23, 2020 , ... ... is pleased to announce the next event in a series of TOPIQ webinars, ... The TOPIQ series of webinars was developed in response to social distancing measures ...
(Date:6/19/2020)... ... June 16, 2020 , ... The director of stem cell biotechnology company ... stem cell medicine and pharmaceutical industries have easier access to stem cell counting, they ... 5 of this year, Independence Day weekend in the U.S., Asymmetrex is offering free ...
Breaking Biology News(10 mins):
(Date:8/3/2020)... (PRWEB) , ... August 03, 2020 , ... Introducing Ardent ... for transformative growth, , Known as MediVet Biologics since its ... , The new Ardent Animal Health will build on its base of ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... the launch of its new tagline, “BUILDING FOR LIFE.” The adoption of this ... around the globe, requiring fast track capacity to provide patients with urgently needed ...
(Date:7/31/2020)... ... July 29, 2020 , ... Anomet Products ... three different materials for use with CRM, neurostimulation, vascular, and related devices. , ... meet specific design requirements, performance, and cost criteria; especially where solid wire is ...
(Date:7/31/2020)... ... July 29, 2020 , ... eSource has long been touted as the ... the history of eSource, the reasons it did not take off as quickly as ... source, the industry is moving towards capturing data electronically for clinical trials and then ...
Breaking Biology Technology:
Cached News: