scholarly journals Effects of Short-Term Exposure to Diesel Exhaust on the Ecophysiology, Growth, and Fecundity of Soybean (Glycine max (L.) Merr.) and Chicory (Cichorium intybus L.)

2021 ◽  
Vol 121 (2) ◽  
pp. 21-32
Author(s):  
Susan Y. Jaconis ◽  
Theresa M. Culley ◽  
Timothy Keener ◽  
Alexandra M. Odom ◽  
Robert Elam ◽  
...  
Keyword(s):  
Glycine Max ◽  
Plant Species ◽  
Diesel Exhaust ◽  
Recovery Period ◽  
Ambient Air ◽  
Cichorium Intybus ◽  
Short Term ◽  
Diesel Exhaust Exposure ◽  
Glycine Max L ◽  
The Impact

Plants growing along roadways are often exposed to vehicle exhaust containing both particulate matter (PM) and various gases that could affect gas exchange and thus plant reproduction. To investigate effects of diesel exhaust exposure on plant ecophysiology, growth, and fecundity, individuals of soybean (Glycine max (L.) Merr.) and chicory (Cichorium intybus L.) were exposed to either exhaust from a diesel generator or ambient air. Exposure occurred daily over a 5-day period (beginning 18 June 2013) using open-top chambers in an agricultural field in southwestern Ohio, United States. Plants were evaluated at 3 times (before, directly after exposure, and following a 5.5-week post-treatment recovery period) for photosynthetic rate (A), stomatal conductance (g), water use efficiency (WUE), stomatal clogging due to PM deposition, and number of nodes. Aboveground biomass, fruit number, mean seed number, and seed mass were measured for soybean after the recovery period. In soybean, A minimally decreased with exposure to diesel exhaust (compared to the control), but an increase in g and a decrease in WUE were detected after the exhaust treatment. Chicory exhibited a relatively low increase in A after the treatment, but there were no clear differences in g or WUE. Growth and fecundity were similar among all soybean plants directly after treatment, but after 5.5 weeks plants exposed to diesel exhaust had increased vegetative biomass while exhibiting no difference in fecundity. These plant species reacted differently to short-term diesel exhaust exposure, suggesting that the impact of diesel exhaust will depend on both the plant species and its physiology.

scholarly journals The Impact of Short-Term Exposure to Air Pollution on the Exhaled Breath of Healthy Adults

Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2518
Author(s):  
Ariana Lammers ◽  
Anne H. Neerincx ◽  
Susanne J. H. Vijverberg ◽  
Cristina Longo ◽  
Nicole A. H. Janssen ◽  
...  
Keyword(s):  
Air Pollution ◽  
Ambient Air ◽  
Healthy Adults ◽  
Partial Least Square ◽  
Exhaled Breath ◽  
Short Term ◽  
Post Exposure ◽  
Short Term Exposure ◽  
Validation Set ◽  
The Impact

Environmental factors, such as air pollution, can affect the composition of exhaled breath, and should be well understood before biomarkers in exhaled breath can be used in clinical practice. Our objective was to investigate whether short-term exposures to air pollution can be detected in the exhaled breath profile of healthy adults. In this study, 20 healthy young adults were exposed 2–4 times to the ambient air near a major airport and two highways. Before and after each 5 h exposure, exhaled breath was analyzed using an electronic nose (eNose) consisting of seven different cross-reactive metal-oxide sensors. The discrimination between pre and post-exposure was investigated with multilevel partial least square discriminant analysis (PLSDA), followed by linear discriminant and receiver operating characteristic (ROC) analysis, for all data (71 visits), and for a training (51 visits) and validation set (20 visits). Using all eNose measurements and the training set, discrimination between pre and post-exposure resulted in an area under the ROC curve of 0.83 (95% CI = 0.76–0.89) and 0.84 (95% CI = 0.75–0.92), whereas it decreased to 0.66 (95% CI = 0.48–0.84) in the validation set. Short-term exposure to high levels of air pollution potentially influences the exhaled breath profiles of healthy adults, however, the effects may be minimal for regular daily exposures.

scholarly journals Effect of Short-Term Exposure to Fine Particulate Matter and Temperature on Acute Myocardial Infarction in Korea

2021 ◽  
Vol 18 (9) ◽  
pp. 4822
Author(s):  
Jiyoung Shin ◽  
Jongmin Oh ◽  
In Sook Kang ◽  
Eunhee Ha ◽  
Wook Bum Pyun
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Particulate Matter ◽  
Fine Particulate Matter ◽  
Ambient Air ◽  
Cold Season ◽  
Short Term ◽  
Fine Particulate ◽  
Short Term Exposure ◽  
The Impact

Background/Aim: Previous studies have suggested that the short-term ambient air pollution and temperature are associated with myocardial infarction. In this study, we aimed to conduct a time-series analysis to assess the impact of fine particulate matter (PM2.5) and temperature on acute myocardial infarction (AMI) among adults over 20 years of age in Korea by using the data from the Korean National Health Information Database (KNHID). Methods: The daily data of 192,567 AMI cases in Seoul were collected from the nationwide, population-based KNHID from 2005 to 2014. The monitoring data of ambient PM2.5 from the Seoul Research Institute of Public Health and Environment were also collected. A generalized additive model (GAM) that allowed for a quasi-Poisson distribution was used to analyze the effects of PM2.5 and temperature on the incidence of AMI. Results: The models with PM2.5 lag structures of lag 0 and 2-day averages of lag 0 and 1 (lag 01) showed significant associations with AMI (Relative risk [RR]: 1.011, CI: 1.003–1.020 for lag 0, RR: 1.010, CI: 1.000–1.020 for lag 01) after adjusting the covariates. Stratification analysis conducted in the cold season (October–April) and the warm season (May–September) showed a significant lag 0 effect for AMI cases in the cold season only. Conclusions: In conclusion, acute exposure to PM2.5 was significantly associated with AMI morbidity at lag 0 in Seoul, Korea. This increased risk was also observed at low temperatures.

scholarly journals The Impact of Acute Diesel Exhaust Exposure on Executive Brain Function

2021 ◽  
Vol 21 (9) ◽  
pp. 2562
Author(s):  
Thomas Faherty ◽  
A. R. MacKenzie ◽  
Kimron Shapiro ◽  
J. M. Delgado-Saborit ◽  
Gordon McFiggans ◽  
...  
Keyword(s):  
Diesel Exhaust ◽  
Brain Function ◽  
Diesel Exhaust Exposure ◽  
The Impact

scholarly journals The Impact of Long-and Short-Term Strontium Treatment on Metabolites and Minerals in Glycine max

Molecules ◽  
2019 ◽  
Vol 24 (21) ◽  
pp. 3825 ◽  
Author(s):  
Hanaka ◽  
Dresler ◽  
Wójciak-Kosior ◽  
Strzemski ◽  
Kováčik ◽  
...  
Keyword(s):  
Glycine Max ◽  
Chlorophyll Content ◽  
Entire Period ◽  
Short Term ◽  
Short Term Exposure ◽  
Applied Dose ◽  
The Impact

The impact of long-term exposure to Sr2+ (LTE, four doses, 43.5 mg Sr2+ per pot, with a total of 174 mg Sr2+ per pot during the entire period of cultivation) and short-term exposure to Sr2+ (STE, one dose, 870 mg Sr2+ per pot four days before harvest) on the content of phytoestrogens and allantoin in soybeans were compared. Sr2+ accumulation, the effect on the concentration of macroelements, and basic physiology were also analyzed. LTE reduced the content of malonyldaidzin and malonylgenistin in the roots (58% and 50% compared to the control, respectively). STE increased the amount of all isoflavones in the stem and genistein in the leaves and decreased the content of malonyldaidzin and malonylgenistin in the leaves (55% and 48% compared to the control, respectively) and roots (69% and 62% of the control, respectively) as well as genistein and coumestrol in the roots (both 50% compared to the control). Sr2+ presence stimulated the accumulation of allantoin in the roots (three-fold higher than in the control), but only STE had similar effects on the shoots. In contrast to LTE, Sr2+ was transported extensively from the roots to the leaves under STE. In comparison to the control, LTE resulted in an increase in the Ca content in the stem by 36%, whereas Ca2+ accumulation in the leaves, stems, and roots increased by 60%, 80%, and 36%, respectively, under STE. Additionally, a significant accumulation of K was found only in the roots of the LTE group. The chlorophyll content did not differ between the treatments. Overall, the production of phytoestrogens and Sr accumulation were affected by both the applied dose and the duration of exposure to Sr.

Effect Of Short Term Diesel Exhaust Exposure On Nasal Responses To Influenza In Allergic Rhinitics

2011 ◽  
Author(s):  
Terry L. Noah ◽  
Katie Horvath ◽  
Carole Robinette ◽  
David Diaz-Sanchez ◽  
Hongtao Zhang ◽  
...  
Keyword(s):  
Diesel Exhaust ◽  
Short Term ◽  
Diesel Exhaust Exposure

An assessment of the impact of ambient ozone on field-grown crops in New Jersey using the EDU method: Part 2—Soybean (Glycine max (L.) Merr.)

1990 ◽  
Vol 66 (4) ◽  
pp. 361-373 ◽  
Author(s):  
Eileen G. Brennan ◽  
Bruce B. Clarke ◽  
Barbara Greenhalgh-Weidman ◽  
Gretchen Smith
Keyword(s):  
New Jersey ◽  
Glycine Max ◽  
Ambient Ozone ◽  
Glycine Max L ◽  
The Impact

Evaluation of the aluminium-induced root growth inhibition in isolation from low pH effects in Glycine max, Pisum sativum and Phaseolus vulgaris

1999 ◽  
Vol 26 (2) ◽  
pp. 147 ◽  
Author(s):  
Dennis B. Lazof ◽  
Michael J. Holland
Keyword(s):  
Glycine Max ◽  
Phaseolus Vulgaris ◽  
Pisum Sativum ◽  
Recovery Period ◽  
Solution Culture ◽  
Interactive Effects ◽  
Root Growth Inhibition ◽  
Ph Effects ◽  
Glycine Max L

The interaction between proton and aluminium toxicities was examined in soybean (Glycine max L.), pea (Pisum sativum L.) and bean (Phaseolus vulgaris L.). Accurate characterization of genotype Al-sensitivity in solution culture experiments, employing a continuous Al-exposure, required response definition at both growth-enhancing and growth inhibiting activities. Essentially, this involved multiple controls to account for the interactive effects. Experiments measuring growth during a recovery period in Al-free solution were more successful in distinguishing genotypic response to Al, especially in species demonstrating high H+ -sensitivity. The time, concentration and basal solution dependencies of the characteristic genotype response for the three species examined were consistent with the hypothesis that responses of genotypes may be predicated upon conditions emphasizing irreversible (cell division) effects. Cell extension effects, however, appear to be rapid, largely-reversible and often not different between differentially Al-sensitive genotypes growing in a complete nutrient solution.

Short-term recovery of Bradyrhizobium japonicum during an inoculation process using mineral microgranules

1994 ◽  
Vol 40 (4) ◽  
pp. 322-325 ◽  
Author(s):  
Georges Fouilleux ◽  
Cécile Revellin ◽  
Gérard Catroux
Keyword(s):  
Glycine Max ◽  
Moisture Content ◽  
Bradyrhizobium Japonicum ◽  
Water Retention ◽  
Short Term ◽  
Relative Water ◽  
Glycine Max L ◽  
Retention Characteristics ◽  
Granule Type ◽  
Commercial Inoculants

Soybean (Glycine max (L.) Merr.) can be inoculated by delivering inoculant mixed with mineral microgranules to the seedbed. An average decline of 0.61 log units in the number of viable Bradyrhizobium japonicum was found during the 1sth, using available commercial inoculants and granules. These losses were shown to be influenced by inoculant type (peat based, liquid, lyophilized) and granule type. When mixed with granules, a peat-based inoculant was found to be desiccated immediately and subjected to a water potential as low as −170 MPa. Bradyrhizobium japonicum recovery was improved when the moisture content of the granules increased. It was concluded that water suction by granules can subject the bacteria to rapid desiccation and significantly decrease their number. Thus, the nature of inoculant and granular material and their relative water retention characteristics must be taken into account to improve the efficiency of this inoculation process.Key words: Bradyrhizobium japonicum, granular inoculant, inoculation, soybean, survival.

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