Ozone injury on cutleaf coneflower (Rudbeckia laciniata) and crown-beard (Verbesina occidentalis) in Great Smoky Mountains National Park
Chappelka, AH; Neufeld, HS; Davison, AW; Somers, GL; Renfro, JR
HERO ID
52951
Reference Type
Journal Article
Year
2003
Language
English
PMID
| HERO ID | 52951 |
|---|---|
| In Press | No |
| Year | 2003 |
| Title | Ozone injury on cutleaf coneflower (Rudbeckia laciniata) and crown-beard (Verbesina occidentalis) in Great Smoky Mountains National Park |
| Authors | Chappelka, AH; Neufeld, HS; Davison, AW; Somers, GL; Renfro, JR |
| Journal | Environmental Pollution |
| Volume | 125 |
| Issue | 1 |
| Page Numbers | 53-60 |
| Abstract | Incidence and severity of visible foliar ozone injury on cutleaf coneflower (Rudbeckia laciniata L.) and crown-beard (Verbesina occidentalis Walt.) were determined along selected trails at three locations in Great Smoky Mountains National Park during the summers of 2000 and 2001: Clingmans Dome, Cherokee Orchard Road and Purchase Knob. Cutleaf coneflower exhibited a greater amount of foliar injury than crown-beard each year of the 2-year study. Incidence and severity of injury was significantly greater for cutleaf coneflower growing near the edge of the Clingmans Dome trail than in the interior of the stand. Injury was greater at Clingmans Dome than Purchase Knob (70% vs. 40% ozone-injured plants, respectively), coincident with greater ozone exposures. In contrast to Clingmans Dome, there were no differences in injury between plants growing near- and off-trail at Purchase Knob. Differences in sensitivity to ozone were not observed for crown-beard growing near the edge compared with the interior of the stand adjacent to the Cherokee Orchard Road Loop. Ozone injury was greatest on the lower leaves for both species sampled with over 95% of the injured leaves occurring on the lower 50% of the plant. This is the first report of foliar ozone injury on these plant species in situ, in the Park, illustrating the great variability in symptom expression with time, and within and between populations. |
| Doi | 10.1016/S0269-7491(03)00086-1 |
| Pmid | 12804827 |
| Wosid | WOS:000183761000007 |
| Url | http://linkinghub.elsevier.com/retrieve/pii/S0269749103000861 |
| Is Certified Translation | No |
| Dupe Override | No |
| Conference Name | Symposium on Native Plants as Bioindicators of Air Pollutants held in conjunction withe the 34th Air Pollution Workshop |
| Conference Date | APR 15, 2002 |
| Comments | ECRIB. Rudbeckia laciniata and Verbesina occidentalis are italicized.Environ. Pollut. 125: 53-60. |
| Is Public | Yes |
| Language Text | English |
| Keyword | ozone; bioindicator; visible foliar injury; air pollution; plant ecosystems;UNITED-STATES; AMBIENT OZONE; RESPONSES; EXPOSURES; VIRGINIA; MILKWEED; AIR |
| Is Qa | No |