Application and further characterization of the snap bean S156/R123 ozone biomonitoring system in relation to ambient air temperature

Agathokleous, Evgenios; Saitanis, Costas J.; Burkey, Kent O.; Ntatsi, Georgia; Vougeleka, Vasiliki; Mashaheet, Alsayed M.; Pallides, Andreas

doi:10.1016/j.scitotenv.2016.12.059

Cited by 14 publications

(8 citation statements)

References 53 publications

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“…1). These ratios agree with those of other studies (Burkey et al, 2005;Flowers et al, 2007), although environmental factors, such as heat stress, can affect pod yields differentially between genotypes (Agathokleous et al, 2017). Comparatively, the Y-intercepts (Fig.…”

Section: Resultssupporting

confidence: 91%

Response of Sensitive and Resistant Snap Bean Genotypes to Nighttime Ozone Concentration

Lloyd

Davis

Marini

et al. 2020

J. Amer. Soc. Hort. Sci.

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Effects of nighttime (2000 to 0700 hr) O3 on the pod mass of sensitive (S156) and resistant (R123) snap bean (Phaseolus vulgaris) genotypes were assessed using continuous stirred tank reactors located within a greenhouse. Two concentration-response relationship trials were designed to evaluate yield response to nighttime O3 exposure (10 to 265 ppb) in combination with daytime exposure at background levels (44 and 62 ppb). Three replicated trials tested the impact of nighttime O3 treatment at means of 145, 144, and 145 ppb on yields. In addition, stomatal conductance (gS) measurements documented diurnal variations and assessed the effects of genotype and leaf age. During the concentration-response experiments, pod mass had a significant linear relationship with the nighttime O3 concentration across genotypes. Yield losses of 15% and 50% occurred at nighttime exposure levels of ≈45 and 145 ppb, respectively, for S156, whereas R123 yields decreased by 15% at ≈150 ppb. At low nighttime O3 levels of ≈100 ppb, R123 yields initially increased up to 116% of the treatment that received no added nighttime O3, suggesting a potential hormesis effect for R123, but not for S156. Results from replicated trials revealed significant yield losses in both genotypes following combined day and night exposure, whereas night-only exposure caused significant decreases only for S156. The gS rates ranged from less than 100 mmol·m−2·s−1 in the evening to midday levels more than 1000 mmol·m−2·s−1. At sunrise and sunset, S156 had significantly higher gS rates than R123, suggesting a greater potential O3 flux into leaves. Across genotypes, younger rapidly growing leaves had higher gS rates than mature fully expanded leaves when evaluated at four different times during the day. Although these were long-term trials, gS measurements and observations of foliar injury development suggest that acute injury, occurring at approximately the time of sunrise, also may have contributed to yield losses. To our knowledge, these are the first results to confirm that the relative O3 sensitivity of the S156/R123 genotypes is valid for nighttime exposure.

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Section: Resultssupporting

confidence: 91%

Response of Sensitive and Resistant Snap Bean Genotypes to Nighttime Ozone Concentration

Lloyd

Davis

Marini

et al. 2020

J. Amer. Soc. Hort. Sci.

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“…However, a study conducted in outdoor plant environmental chambers in Greece showed that yields were also sensitive to temperature in both strains but with a difference in response. 164 Similar effects of local climate were observed in studies on clover (Trifolium subterraneum and T. striatum) exposed to O3 in Spain; 165 however, here the authors suggested that Phytotoxic Ozone Dose (POD), based on the accumulated O3 flux into the leaves, was a more accurate indicator of damage. A review of the use of reflectance spectroscopy to monitor responses of plants to air pollutants suggested that this was a reliable technique for assessing damage in leaves from exposure to O3 and several other air pollutants.…”

Section: Insert Table 2 After This Pointsupporting

confidence: 63%

Interactive effects of changing stratospheric ozone and climate on tropospheric composition and air quality, and the consequences for human and ecosystem health

Wilson

Madronich

Longstreth

et al. 2019

Photochem Photobiol Sci

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“…Under control conditions, S156 and R123 produced similar yields by mass in Fall 2014 and Spring 2015 but not Fall 2015 (Tables 4 and 5). Yield mass ratios of S156:R123 ranged from 1.03 (Fall 2014) to 0.77 (Fall 2015) and were likely affected by environmental factors (Agathokleous et al, 2017). R123 produced significantly greater pod mass than S156 in the Fall 2015 control, and in all three trials, R123 had significantly greater mass yields than S156 under elevated daytime O 3 .…”

Section: Resultsmentioning

confidence: 95%

“…However, plants grown in the same facility, exposed to 0 ppb O 3 in combination with low and high vapor pressure deficit treatments, had seed mass ratios of about 0.72 and 0.70, respectively (Fiscus et al, 2012). Agathokleous et al (2017) showed that small increases in air temperature, particularly in the range of 31 to 34°C, can substantially decrease pod number and affect the mass of pods and seeds for S156 and R123. Therefore, S156:R123 yield ratios may vary with environmental factors (e.g., temperature, RH, PAR, nutrient availability) and cultural practices (e.g., container volume, media composition) and should be interpreted with caution (Burkey et al, 2012).…”

Section: Methodsmentioning

confidence: 99%

Effects of Nighttime Ozone Treatment at Ambient Concentrations on Sensitive and Resistant Snap Bean Genotypes

Lloyd

Davis

Marini

et al. 2018

J. Amer. Soc. Hort. Sci.

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The effect of nighttime ozone (O3) exposure, alone and in combination with daytime O3 treatment, was tested on yield of an O3-resistant (R123) and an O3-sensitive (S156) snap bean (Phaseolus vulgaris L.) genotype. Three trials, with exposure durations ranging in length from 14 to 21 days, were conducted in continuous stirred tank reactors located within a greenhouse. The effects of day-only (0800–1900 hr = 11 hours·day−1) and day + night (0800–1900 hr + 2000–0700 hr = 22 hours·day−1) exposure timings were compared. The Fall 2014 trial also tested the effect of nighttime-only (2000–0700 hr = 11 hours·day−1) O3 exposure. Nighttime O3 exposure alone, at 62 ppb, did not cause foliar injury and had no effect on the yield of either genotype. In combination with daytime O3 exposure, nighttime O3 concentrations up to 78 ppb did not impact yields or show a consistent effect on nocturnal stomatal conductance (gsn). When data were pooled across the day and day + night exposures times, mean daytime O3 levels ≥62 ppb caused foliar injury and significant yield decreases in all three trials. Under control conditions, R123 and S156 produced similar pod masses in two of the three trials. In all three trials, R123 produced significantly greater yields by mass than S156 with elevated O3. Nighttime conductance measurements suggested that S156 and R123 have inherently different gsn rates and that cumulative O3 exposure can increase gsn in both genotypes.

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Application and further characterization of the snap bean S156/R123 ozone biomonitoring system in relation to ambient air temperature

Cited by 14 publications

References 53 publications

Response of Sensitive and Resistant Snap Bean Genotypes to Nighttime Ozone Concentration

Response of Sensitive and Resistant Snap Bean Genotypes to Nighttime Ozone Concentration

Interactive effects of changing stratospheric ozone and climate on tropospheric composition and air quality, and the consequences for human and ecosystem health

Effects of Nighttime Ozone Treatment at Ambient Concentrations on Sensitive and Resistant Snap Bean Genotypes

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