http://www.cnr.it/ontology/cnr/individuo/prodotto/ID41333
Ozone exposure and stomatal sluggishness in different plant physiognomic classes (Articolo in rivista)
- Type
- Label
- Ozone exposure and stomatal sluggishness in different plant physiognomic classes (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Paoletti E., Grulke N.E (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Grulke N.E: US Forest Service, 4955 Canyon Crest Drive, Riverside, CA 92507, USA (literal)
- Titolo
- Ozone exposure and stomatal sluggishness in different plant physiognomic classes (literal)
- Abstract
- Gas exchange responses to static and variable light were tested in three species: snap bean (Phaseolus
vulgaris, two cultivars), California black oak (Quercus kelloggii), and blue oak (Q. douglasii). The effects of
1-month (snap beans) and 2-month (oaks) O3 (ozone) exposure (70 ppb over 8 h per day in open-top
chambers) were investigated. A delay in stomatal responses (i.e., sluggish responses) to variable light
was found to be both an effect of O3 exposure and a reason for increased O3 sensitivity in snap bean
cultivars, as it implied higher O3 uptake during times of disequilibrium. Sluggishness increased the time
to open (thus limiting CO2 uptake) and close stomata (thus increasing transpirational water loss) after
abrupt changes in light level. Similar responses were shown by snap beans and oaks, suggesting that
O3-induced stomatal sluggishness is a common trait among different plant physiognomic classes. (literal)
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