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  1. Model for bioavailability and metal reduction from soil amended with petroleum wastewater by rye-grass L
    Ahmad A, Sreedhar Reddy S, Rumana G
    Int J Phytoremediation, 2019;21(5):471-478.
    PMID: 30648407 DOI: 10.1080/15226514.2018.1537243
    To assess the tolerance, the rye-grass L. grown on soil amended with petroleum wastewater (PWW) containing four metals lead, zinc, nickel and mercury. The PWW (25 to 50%) showed remarkable increase in length and biomass. Chlorophyll 'a and b' increased with an increase of PWW from 25-50% while such contents decreased on increasing the 75-100% compared to control. The mass balance performed on the system showed the removal of 90-97.6% lead, 85.5-92.9% zinc, 78.9-85.5% nickle and 47.6-27.5% mercury. The model for the maximum metal reduction rate (Rmax) was much better for Pb (89.5) and Zn (72.1) with respect to Ni (57.3) and Hg (32.4). Survival of rye-grass (30-days, statics, and renewal exposures) was increased by 50% as compared to control. The toxicity index Y of PWW showed 0-25% deficiency level, 25-50% tolerance level, 50-90% toxic level and 90-100% lethal level. The experimental data showing high correlation coefficient (R2 = 0.98).
    Matched MeSH terms: Lolium*
  2. Fulltext Biogeographical variation in specific IgE recognition of temperate and subtropical grass pollen allergens in allergic rhinitis patients
    Kailaivasan TH, Timbrell VL, Solley G, Smith WB, McLean-Tooke A, van Nunen S, et al.
    Clinical & translational immunology, 2020;9(2):e01103.
    PMID: 32025301 DOI: 10.1002/cti2.1103
    Objective: Globally, grass pollens (GP) are major aeroallergen triggers of allergic rhinitis (AR) and asthma. However, patterns of allergic sensitisation to pollen of temperate (Pooideae: Lolium perenne) and subtropical (Chloridoideae: Cynodon dactylon and Panicoideae: Paspalum notatum) subfamilies in diverse climates remain unclear. This study aims to evaluate the level of allergic sensitisation and IgE specificity for major GP allergens representing the three subfamilies in biogeographically distinct regions.

    Methods: Participants (GP-allergic with AR, 330; non-atopic, 29; other allergies, 54) were recruited in subtropical: Queensland, and temperate: New South Wales, Western and South Australia, regions. Clinical history, skin prick test (SPT), total and specific IgE to GP and purified allergens (ImmunoCAP) were evaluated. Cross-inhibition of sIgE with Pas n 1, Cyn d 1 and Lol p 1 by GP extracts was investigated.

    Results: Queensland participants showed higher sensitisation to P. notatum and C. dactylon than L. perenne GP. sIgE was higher to Pas n 1 and Cyn d 1, and sIgE to Pas n 1 and Cyn d 1 was inhibited more by Panicoideae and Chloridoideae, respectively, than Pooideae GP. Conversely, participants from temperate regions showed highest sensitisation levels to L. perenne GP and Lol p 1, and sIgE to Lol p 1 was inhibited more by Pooideae than other GP.

    Conclusion: Levels and patterns of sensitisation to subtropical and temperate GP in AR patients depended on biogeography. Knowledge of the specificity of sensitisation to local allergens is important for optimal diagnosis and choice of allergen-specific immunotherapy to maximise benefit.

    Matched MeSH terms: Lolium
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